https://ntp.niehs.nih.gov/go/5433

TDMS Study 88122-06 Pathology Tables

NTP                                        STATISTICAL ANALYSIS OF PRIMARY TUMORS                              REPORT: PEIRPT08     
LAB: Battelle Columbus                                          ELMIRON                                        DATE: 06/12/01       
EXPERIMENT: 88122 TEST: 06                                                                                     TIME: 09:18:57       
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:       1        
CONT: NO1-ES-55388                              ROUTE: GAVAGE                                                  NTP C#: C88122       
PATHOLOGIST: RYAN, MICHAEL                                                                                     CAS: 37319-17-8      
------------------------------------------------------------------------------------------------------------------------------------
                                                              FINAL#1                                                               
               REASONS FOR REMOVAL:    ALL                                                                                          
               REMOVAL DATE RANGE:     ALL                                                                                          
               TREATMENT GROUPS:       INCLUDE ALL                                                                                  
NTP                                        STATISTICAL ANALYSIS OF PRIMARY TUMORS                              REPORT: PEIRPT08     
LAB: Battelle Columbus                                          ELMIRON                                        DATE: 06/12/01       
EXPERIMENT: 88122 TEST: 06                                                                                     TIME: 09:18:57       
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                                        
CONT: NO1-ES-55388                              ROUTE: GAVAGE                                                  NTP C#: C88122       
PATHOLOGIST: RYAN, MICHAEL                                                                                     CAS: 37319-17-8      
Rats(FISCHER 344)                                                                                                                   
-----------------------------                                                                                                       
FOR ALL DOSES THE TUMOR RATES IN THE FOLLOWING TISSUES/ORGANS ARE                                                                   
BASED ON NUMBER OF TISSUES EXAMINED.  IN OTHER TISSUES/ORGANS RATES                                                                 
ARE BASED ON THE NUMBER OF ANIMALS NECROPSIED.                                                                                      
                                                 ---------------                                                                    
                                                 Adrenal Cortex                                                                     
                                                 Adrenal Medulla                                                                    
                                                 Brain                                                                              
                                                 Clitoral/Preputial Gland                                                           
                                                 Islets, Pancreatic                                                                 
                                                 Liver                                                                              
                                                 Lung                                                                               
                                                 Nose                                                                               
                                                 Ovary                                                                              
                                                 Pancreas                                                                           
                                                 Parathyroid Gland                                                                  
                                                 Pituitary Gland                                                                    
                                                 Salivary Glands                                                                    
                                                 Testes                                                                             
                                                 Thyroid Gland                                                                      
NTP                                        STATISTICAL ANALYSIS OF PRIMARY TUMORS                              REPORT: PEIRPT08     
LAB: Battelle Columbus                                          ELMIRON                                        DATE: 06/12/01       
EXPERIMENT: 88122 TEST: 06                                                                                     TIME: 09:18:57       
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                                        
CONT: NO1-ES-55388                              ROUTE: GAVAGE                                                  NTP C#: C88122       
PATHOLOGIST: RYAN, MICHAEL                                                                                     CAS: 37319-17-8      
SUMMARY OF STATISTICALLY SIGNIFICANT (P<=.05) RESULTS                                                                               
IN THE ANALYSIS OF                     ELMIRON                                                                                      
===============================================================                                                                     
Male Rats                                                                                                                           
------------                                                                                                                        
Organ                                 Morphology                                                                                    
-----                                 ----------                                                                                    
All Organs                             Malignant and Benign Tumors                                                                  
===============================================================                                                                     
Female Rats                                                                                                                         
------------                                                                                                                        
Organ                                  Morphology                                                                                   
-----                                  ----------                                                                                   
Mammary Gland                          Fibroadenoma                                                                                 
                                       Fibroma, Fibroadenoma or Adenoma                                                             
                                       Fibroma, Fibroadenoma, Carcinoma, or Adenoma                                                 
===============================================================                                                                     
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 1       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)        -                      ELMIRON              
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Medulla                                                                                                                  | 
|     Pheochromocytoma Benign                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     7/50 (14%)   7/50 (14%)   3/50 (6%)    8/50 (16%)  |2/50 (4%)    1/50 (2%)    0/50 (0%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |     7/41.59      7/41.97      3/39.89      8/40.29     |2/41.96      1/42.89      0/41.46      3/39.33      | 
|POLY-3 PERCENT (g) |     16.8%        16.7%        7.5%         19.9%       |4.8%         2.3%         0.0%         7.6%         | 
|TERMINAL (d)       |     4/26 (15%)   6/29 (21%)   3/25 (12%)   7/28 (25%)  |1/30 (3%)    1/31 (3%)    0/28 (0%)    2/27 (7%)    | 
|FIRST INCIDENCE    |     640          713          727 (T)      660         |722          728 (T)      ---          727          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.425      P=0.537N     P=0.191N     P=0.544     |P=0.222      P=0.496N     P=0.258N     P=0.456      | 
|POLY 3             |     P=0.383      P=0.608N     P=0.172N     P=0.473     |P=0.238      P=0.492N     P=0.240N     P=0.470      | 
|POLY 1.5           |     P=0.382      P=0.612      P=0.162N     P=0.468     |P=0.241      P=0.496N     P=0.239N     P=0.474      | 
|POLY 6             |     P=0.391      P=0.593N     P=0.187N     P=0.488     |P=0.235      P=0.488N     P=0.240N     P=0.469      | 
|LOGISTIC REGRESSION|     P=0.389      P=0.569N     P=0.193N     P=0.498     |P=0.220      P=0.486N     P=0.247N     P=0.458      | 
|COCH-ARM / FISHERS |     P=0.409      P=0.613N     P=0.159N     P=0.500     |P=0.257      P=0.500N     P=0.247N     P=0.500      | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Medulla                                                                                                                  | 
|     Pheochromocytoma Malignant                                                                                                  | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    3/50 (6%)    1/50 (2%)   |1/50 (2%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/41.22      0/41.91      3/40.86      1/40.04     |1/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     2.4%         0.0%         7.3%         2.5%        |2.4%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    0/29 (0%)    1/25 (4%)    1/28 (4%)   |1/30 (3%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      ---          419          727 (T)     |728 (T)      ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.564      P=0.478N     P=0.292      P=0.746N    |P=0.490N     P=0.493N     P=0.514N     P=0.521N     | 
|POLY 3             |     P=0.544      P=0.497N     P=0.301      P=0.755     |P=0.472N     P=0.496N     P=0.502N     P=0.513N     | 
|POLY 1.5           |     P=0.544      P=0.500N     P=0.306      P=0.753     |P=0.471N     P=0.498N     P=0.502N     P=0.511N     | 
|POLY 6             |     P=0.547      P=0.491N     P=0.294      P=0.759     |P=0.474N     P=0.493N     P=0.503N     P=0.513N     | 
|LOGISTIC REGRESSION|     P=0.566      (e)          P=0.302      P=0.746N    |P=0.490N     (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.564      P=0.500N     P=0.309      P=0.753N    |P=0.471N     P=0.500N     P=0.500N     P=0.500N     | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 2       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Medulla                                                                                                                  | 
|     Pheochromocytoma: Benign, Complex, Malignant, NOS                                                                           | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     7/50 (14%)   7/50 (14%)   6/50 (12%)   9/50 (18%)  |3/50 (6%)    1/50 (2%)    0/50 (0%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |     7/41.59      7/41.97      6/40.86      9/40.29     |3/41.96      1/42.89      0/41.46      3/39.33      | 
|POLY-3 PERCENT (g) |     16.8%        16.7%        14.7%        22.3%       |7.2%         2.3%         0.0%         7.6%         | 
|TERMINAL (d)       |     4/26 (15%)   6/29 (21%)   4/25 (16%)   8/28 (29%)  |2/30 (7%)    1/31 (3%)    0/28 (0%)    2/27 (7%)    | 
|FIRST INCIDENCE    |     640          713          419          660         |722          728 (T)      ---          727          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.321      P=0.537N     P=0.549N     P=0.439     |P=0.357      P=0.300N     P=0.137N     P=0.616      | 
|POLY 3             |     P=0.276      P=0.608N     P=0.514N     P=0.363     |P=0.378      P=0.297N     P=0.120N     P=0.633      | 
|POLY 1.5           |     P=0.277      P=0.612      P=0.501N     P=0.360     |P=0.382      P=0.301N     P=0.120N     P=0.636      | 
|POLY 6             |     P=0.283      P=0.593N     P=0.536N     P=0.377     |P=0.374      P=0.292N     P=0.121N     P=0.632      | 
|LOGISTIC REGRESSION|     P=0.283      P=0.569N     P=0.522N     P=0.388     |P=0.357      P=0.291N     P=0.129N     P=0.622      | 
|COCH-ARM / FISHERS |     P=0.307      P=0.613N     P=0.500N     P=0.393     |P=0.402      P=0.309N     P=0.121N     P=0.661N     | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Clitoral/Preputial Gland                                                                                                         | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    1/50 (2%)    2/50 (4%)   |3/50 (6%)    0/50 (0%)    0/50 (0%)    4/49 (8%)    | 
|POLY-3 RATE (b)    |     1/41.22      1/41.91      1/39.89      2/40.07     |3/42.38      0/42.89      0/41.46      4/38.41      | 
|POLY-3 PERCENT (g) |     2.4%         2.4%         2.5%         5.0%        |7.1%         0.0%         0.0%         10.4%        | 
|TERMINAL (d)       |     1/26 (4%)    1/29 (3%)    1/25 (4%)    1/28 (4%)   |2/30 (7%)    0/31 (0%)    0/28 (0%)    3/26 (12%)   | 
|FIRST INCIDENCE    |     727 (T)      727 (T)      727 (T)      720         |601          ---          ---          706          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.369      P=0.738N     P=0.754      P=0.513     |P=0.098      P=0.118N     P=0.129N     P=0.436      | 
|POLY 3             |     P=0.349      P=0.757N     P=0.754      P=0.490     |P=0.108      P=0.116N     P=0.122N     P=0.446      | 
|POLY 1.5           |     P=0.348      P=0.760N     P=0.758      P=0.487     |P=0.110      P=0.117N     P=0.121N     P=0.453      | 
|POLY 6             |     P=0.352      P=0.752N     P=0.747      P=0.498     |P=0.105      P=0.115N     P=0.124N     P=0.442      | 
|LOGISTIC REGRESSION|     P=0.347      P=0.738N     P=0.754      P=0.496     |P=0.103      P=0.119N     P=0.122N     P=0.451      | 
|COCH-ARM / FISHERS |     P=0.361      P=0.753N     P=0.753N     P=0.500     |P=0.124      P=0.121N     P=0.121N     P=0.489      | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 3       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Clitoral/Preputial Gland                                                                                                         | 
|     Carcinoma or Adenoma                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    1/50 (2%)    1/50 (2%)    2/50 (4%)   |3/50 (6%)    0/50 (0%)    0/50 (0%)    4/49 (8%)    | 
|POLY-3 RATE (b)    |     2/41.94      1/41.91      1/39.89      2/40.07     |3/42.38      0/42.89      0/41.46      4/38.41      | 
|POLY-3 PERCENT (g) |     4.8%         2.4%         2.5%         5.0%        |7.1%         0.0%         0.0%         10.4%        | 
|TERMINAL (d)       |     1/26 (4%)    1/29 (3%)    1/25 (4%)    1/28 (4%)   |2/30 (7%)    0/31 (0%)    0/28 (0%)    3/26 (12%)   | 
|FIRST INCIDENCE    |     475          727 (T)      727 (T)      720         |601          ---          ---          706          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.523      P=0.480N     P=0.511N     P=0.691     |P=0.098      P=0.118N     P=0.129N     P=0.436      | 
|POLY 3             |     P=0.507      P=0.500N     P=0.517N     P=0.678     |P=0.108      P=0.116N     P=0.122N     P=0.446      | 
|POLY 1.5           |     P=0.508      P=0.503N     P=0.508N     P=0.677     |P=0.110      P=0.117N     P=0.121N     P=0.453      | 
|POLY 6             |     P=0.508      P=0.494N     P=0.531N     P=0.684     |P=0.105      P=0.115N     P=0.124N     P=0.442      | 
|LOGISTIC REGRESSION|     P=0.513      P=0.498N     P=0.502N     P=0.693     |P=0.103      P=0.119N     P=0.122N     P=0.451      | 
|COCH-ARM / FISHERS |     P=0.524      P=0.500N     P=0.500N     P=0.691N    |P=0.124      P=0.121N     P=0.121N     P=0.489      | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Islets, Pancreatic                                                                                                               | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    1/50 (2%)    0/50 (0%)   |0/50 (0%)    1/50 (2%)    2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/41.22      1/42.00      1/40.49      0/40.04     |0/41.94      1/42.89      2/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     2.4%         2.4%         2.5%         0.0%        |0.0%         2.3%         4.8%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    0/29 (0%)    0/25 (0%)    0/28 (0%)   |0/30 (0%)    1/31 (3%)    2/28 (7%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      705          533          ---         |---          728 (T)      728 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.330N     P=0.735N     P=0.758      P=0.485N    |P=0.550N     P=0.507      P=0.223      (e)          | 
|POLY 3             |     P=0.332N     P=0.757N     P=0.757      P=0.506N    |P=0.544N     P=0.504      P=0.234      (e)          | 
|POLY 1.5           |     P=0.333N     P=0.760N     P=0.760      P=0.507N    |P=0.540N     P=0.502      P=0.235      (e)          | 
|POLY 6             |     P=0.330N     P=0.751N     P=0.752      P=0.502N    |P=0.545N     P=0.507      P=0.233      (e)          | 
|LOGISTIC REGRESSION|     P=0.321N     P=0.752N     P=0.759      (e)         |(e)          P=0.507      P=0.223      (e)          | 
|COCH-ARM / FISHERS |     P=0.323N     P=0.753N     P=0.753N     P=0.500N    |P=0.517N     P=0.500      P=0.247      (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 4       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Islets, Pancreatic                                                                                                               | 
|     Carcinoma or Adenoma                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    2/50 (4%)    1/50 (2%)    0/50 (0%)   |0/50 (0%)    1/50 (2%)    2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/41.22      2/42.00      1/40.49      0/40.04     |0/41.94      1/42.89      2/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     2.4%         4.8%         2.5%         0.0%        |0.0%         2.3%         4.8%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    1/29 (3%)    0/25 (0%)    0/28 (0%)   |0/30 (0%)    1/31 (3%)    2/28 (7%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      705          533          ---         |---          728 (T)      728 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.239N     P=0.539      P=0.758      P=0.485N    |P=0.550N     P=0.507      P=0.223      (e)          | 
|POLY 3             |     P=0.242N     P=0.507      P=0.757      P=0.506N    |P=0.544N     P=0.504      P=0.234      (e)          | 
|POLY 1.5           |     P=0.244N     P=0.501      P=0.760      P=0.507N    |P=0.540N     P=0.502      P=0.235      (e)          | 
|POLY 6             |     P=0.238N     P=0.516      P=0.752      P=0.502N    |P=0.545N     P=0.507      P=0.233      (e)          | 
|LOGISTIC REGRESSION|     P=0.238N     P=0.521      P=0.759      (e)         |(e)          P=0.507      P=0.223      (e)          | 
|COCH-ARM / FISHERS |     P=0.235N     P=0.500      P=0.753N     P=0.500N    |P=0.517N     P=0.500      P=0.247      (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung                                                                                                                             | 
|     Alveolar/Bronchiolar Adenoma                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    1/50 (2%)    1/50 (2%)    2/50 (4%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/41.22      1/42.41      1/40.05      2/40.04     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     0.0%         2.4%         2.5%         5.0%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/26 (0%)    0/29 (0%)    0/25 (0%)    2/28 (7%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     ---          577          686          727 (T)     |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.200      P=0.505      P=0.475      P=0.254     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.183      P=0.506      P=0.494      P=0.230     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.183      P=0.502      P=0.498      P=0.229     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.186      P=0.512      P=0.489      P=0.235     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.187      P=0.509      P=0.496      P=0.254     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.193      P=0.500      P=0.500      P=0.247     |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 5       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung                                                                                                                             | 
|     Alveolar/Bronchiolar Carcinoma                                                                                              | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    0/50 (0%)    0/50 (0%)    1/50 (2%)   |0/50 (0%)    1/50 (2%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/41.38      0/41.91      0/39.89      1/40.04     |0/41.94      1/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     4.8%         0.0%         0.0%         2.5%        |0.0%         2.3%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    0/29 (0%)    0/25 (0%)    1/28 (4%)   |0/30 (0%)    1/31 (3%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     685          ---          ---          727 (T)     |---          728 (T)      ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.642N     P=0.225N     P=0.258N     P=0.486N    |P=0.605N     P=0.507      (e)          (e)          | 
|POLY 3             |     P=0.651N     P=0.234N     P=0.245N     P=0.512N    |P=0.585N     P=0.504      (e)          (e)          | 
|POLY 1.5           |     P=0.649N     P=0.237N     P=0.240N     P=0.513N    |P=0.586N     P=0.502      (e)          (e)          | 
|POLY 6             |     P=0.653N     P=0.229N     P=0.253N     P=0.506N    |P=0.584N     P=0.507      (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.652N     P=0.231N     P=0.250N     P=0.503N    |(e)          P=0.507      (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.646N     P=0.247N     P=0.247N     P=0.500N    |P=0.585N     P=0.500      (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lung                                                                                                                             | 
|     Alveolar/Bronchiolar Carcinoma or Alveolar/Bronchiolar                                                                      | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    1/50 (2%)    1/50 (2%)    3/50 (6%)   |0/50 (0%)    1/50 (2%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/41.38      1/42.41      1/40.05      3/40.04     |0/41.94      1/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     4.8%         2.4%         2.5%         7.5%        |0.0%         2.3%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    0/29 (0%)    0/25 (0%)    3/28 (11%)  |0/30 (0%)    1/31 (3%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     685          577          686          727 (T)     |---          728 (T)      ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.290      P=0.481N     P=0.533N     P=0.524     |P=0.605N     P=0.507      (e)          (e)          | 
|POLY 3             |     P=0.266      P=0.491N     P=0.511N     P=0.485     |P=0.585N     P=0.504      (e)          (e)          | 
|POLY 1.5           |     P=0.268      P=0.498N     P=0.504N     P=0.483     |P=0.586N     P=0.502      (e)          (e)          | 
|POLY 6             |     P=0.266      P=0.481N     P=0.522N     P=0.493     |P=0.584N     P=0.507      (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.269      P=0.500N     P=0.515N     P=0.500     |(e)          P=0.507      (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.281      P=0.500N     P=0.500N     P=0.500     |P=0.585N     P=0.500      (e)          (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 6       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Mammary Gland                                                                                                                    | 
|     Carcinoma                                                                                                                   | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)   |1/50 (2%)    1/50 (2%)    1/50 (2%)    3/50 (6%)    | 
|POLY-3 RATE (b)    |     0/41.22      0/41.91      0/39.89      0/40.04     |1/42.02      1/43.09      1/41.46      3/39.52      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         0.0%        |2.4%         2.3%         2.4%         7.6%         | 
|TERMINAL (d)       |     0/26 (0%)    0/29 (0%)    0/25 (0%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    1/28 (4%)    2/27 (7%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          ---         |707          678          728 (T)      678          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.127      P=0.748N     P=0.746      P=0.271      | 
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.140      P=0.755N     P=0.758      P=0.283      | 
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.142      P=0.758N     P=0.758      P=0.285      | 
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.138      P=0.752N     P=0.757      P=0.283      | 
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.135      P=0.760N     P=0.759      P=0.281      | 
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.156      P=0.753N     P=0.753N     P=0.309      | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Mammary Gland                                                                                                                    | 
|     Carcinoma or Adenoma                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    0/50 (0%)    0/50 (0%)    0/50 (0%)   |1/50 (2%)    1/50 (2%)    2/50 (4%)    4/50 (8%)    | 
|POLY-3 RATE (b)    |     1/41.22      0/41.91      0/39.89      0/40.04     |1/42.02      1/43.09      2/41.46      4/39.52      | 
|POLY-3 PERCENT (g) |     2.4%         0.0%         0.0%         0.0%        |2.4%         2.3%         4.8%         10.1%        | 
|TERMINAL (d)       |     1/26 (4%)    0/29 (0%)    0/25 (0%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    2/28 (7%)    3/27 (11%)   | 
|FIRST INCIDENCE    |     727 (T)      ---          ---          ---         |707          678          728 (T)      678          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.467N     P=0.478N     P=0.508N     P=0.485N    |P=0.055      P=0.748N     P=0.477      P=0.153      | 
|POLY 3             |     P=0.472N     P=0.497N     P=0.507N     P=0.506N    |P=0.061      P=0.755N     P=0.495      P=0.159      | 
|POLY 1.5           |     P=0.470N     P=0.500N     P=0.502N     P=0.507N    |P=0.063      P=0.758N     P=0.496      P=0.162      | 
|POLY 6             |     P=0.476N     P=0.491N     P=0.513N     P=0.502N    |P=0.060      P=0.752N     P=0.493      P=0.159      | 
|LOGISTIC REGRESSION|     P=0.467N     (e)          (e)          (e)         |P=0.059      P=0.760N     P=0.490      P=0.159      | 
|COCH-ARM / FISHERS |     P=0.471N     P=0.500N     P=0.500N     P=0.500N    |P=0.074      P=0.753N     P=0.500      P=0.181      | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 7       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Mammary Gland                                                                                                                    | 
|     Fibroadenoma                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    1/50 (2%)    3/50 (6%)    5/50 (10%)  |15/50 (30%)  23/50 (46%)  24/50 (48%)  21/50 (42%)  | 
|POLY-3 RATE (b)    |     2/42.52      1/41.91      3/40.40      5/40.04     |15/42.95     23/44.70     24/42.93     21/40.67     | 
|POLY-3 PERCENT (g) |     4.7%         2.4%         7.4%         12.5%       |34.9%        51.5%        55.9%        51.6%        | 
|TERMINAL (d)       |     0/26 (0%)    1/29 (3%)    2/25 (8%)    5/28 (18%)  |11/30 (37%)  16/31 (52%)  17/28 (61%)  14/27 (52%)  | 
|FIRST INCIDENCE    |     503          727 (T)      574          727 (T)     |621          474          474          588          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.077      P=0.495N     P=0.491      P=0.227     |P=0.171      P=0.111      P=0.036 *    P=0.093      | 
|POLY 3             |     P=0.063      P=0.505N     P=0.477      P=0.191     |P=0.186      P=0.085      P=0.036 *    P=0.088      | 
|POLY 1.5           |     P=0.064      P=0.506N     P=0.490      P=0.194     |P=0.205      P=0.078      P=0.039 *    P=0.095      | 
|POLY 6             |     P=0.062      P=0.501N     P=0.459      P=0.192     |P=0.179      P=0.094      P=0.032 *    P=0.087      | 
|LOGISTIC REGRESSION|     P=0.070      P=0.486N     P=0.481      P=0.212     |P=0.192      P=0.082      P=0.038 *    P=0.088      | 
|COCH-ARM / FISHERS |     P=0.074      P=0.500N     P=0.500      P=0.218     |P=0.322      P=0.074      P=0.050      P=0.149      | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Mammary Gland                                                                                                                    | 
|     Fibroma, Fibroadenoma or Adenoma                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/50 (8%)    1/50 (2%)    3/50 (6%)    5/50 (10%)  |15/50 (30%)  23/50 (46%)  24/50 (48%)  21/50 (42%)  | 
|POLY-3 RATE (b)    |     4/42.52      1/41.91      3/40.40      5/40.04     |15/42.95     23/44.70     24/42.93     21/40.67     | 
|POLY-3 PERCENT (g) |     9.4%         2.4%         7.4%         12.5%       |34.9%        51.5%        55.9%        51.6%        | 
|TERMINAL (d)       |     2/26 (8%)    1/29 (3%)    2/25 (8%)    5/28 (18%)  |11/30 (37%)  16/31 (52%)  17/28 (61%)  14/27 (52%)  | 
|FIRST INCIDENCE    |     503          727 (T)      574          727 (T)     |621          474          474          588          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.218      P=0.167N     P=0.513N     P=0.520     |P=0.171      P=0.111      P=0.036 *    P=0.093      | 
|POLY 3             |     P=0.189      P=0.182N     P=0.528N     P=0.462     |P=0.186      P=0.085      P=0.036 *    P=0.088      | 
|POLY 1.5           |     P=0.193      P=0.184N     P=0.512N     P=0.466     |P=0.205      P=0.078      P=0.039 *    P=0.095      | 
|POLY 6             |     P=0.188      P=0.178N     P=0.549N     P=0.466     |P=0.179      P=0.094      P=0.032 *    P=0.087      | 
|LOGISTIC REGRESSION|     P=0.200      P=0.177N     P=0.502N     P=0.486     |P=0.192      P=0.082      P=0.038 *    P=0.088      | 
|COCH-ARM / FISHERS |     P=0.212      P=0.181N     P=0.500N     P=0.500     |P=0.322      P=0.074      P=0.050      P=0.149      | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 8       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Mammary Gland                                                                                                                    | 
|     Fibroma, Fibroadenoma, Carcinoma, or Adenoma                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/50 (8%)    1/50 (2%)    3/50 (6%)    5/50 (10%)  |16/50 (32%)  24/50 (48%)  24/50 (48%)  24/50 (48%)  | 
|POLY-3 RATE (b)    |     4/42.52      1/41.91      3/40.40      5/40.04     |16/43.03     24/44.89     24/42.93     24/40.86     | 
|POLY-3 PERCENT (g) |     9.4%         2.4%         7.4%         12.5%       |37.2%        53.5%        55.9%        58.7%        | 
|TERMINAL (d)       |     2/26 (8%)    1/29 (3%)    2/25 (8%)    5/28 (18%)  |11/30 (37%)  16/31 (52%)  17/28 (61%)  16/27 (59%)  | 
|FIRST INCIDENCE    |     503          727 (T)      574          727 (T)     |621          474          474          588          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.218      P=0.167N     P=0.513N     P=0.520     |P=0.079      P=0.121      P=0.058      P=0.045 *    | 
|POLY 3             |     P=0.189      P=0.182N     P=0.528N     P=0.462     |P=0.077      P=0.089      P=0.058      P=0.034 *    | 
|POLY 1.5           |     P=0.193      P=0.184N     P=0.512N     P=0.466     |P=0.089      P=0.081      P=0.063      P=0.039 *    | 
|POLY 6             |     P=0.188      P=0.178N     P=0.549N     P=0.466     |P=0.072      P=0.101      P=0.052      P=0.034 *    | 
|LOGISTIC REGRESSION|     P=0.200      P=0.177N     P=0.502N     P=0.486     |P=0.080      P=0.084      P=0.060      P=0.036 *    | 
|COCH-ARM / FISHERS |     P=0.212      P=0.181N     P=0.500N     P=0.500     |P=0.174      P=0.076      P=0.076      P=0.076      | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pituitary Gland: Pars Distalis or Unspecified Site                                                                               | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     19/50 (38%)  18/50 (36%)  18/50 (36%)  13/50 (26%) |21/50 (42%)  21/50 (42%)  26/50 (52%)  19/50 (38%)  | 
|POLY-3 RATE (b)    |     19/44.60     18/44.62     18/42.45     13/41.07    |21/45.02     21/44.26     26/44.55     19/41.27     | 
|POLY-3 PERCENT (g) |     42.6%        40.3%        42.4%        31.7%       |46.7%        47.5%        58.4%        46.0%        | 
|TERMINAL (d)       |     12/26 (46%)  10/29 (35%)  11/25 (44%)  8/28 (29%)  |9/30 (30%)   16/31 (52%)  14/28 (50%)  11/27 (41%)  | 
|FIRST INCIDENCE    |     503          313          462          629         |462          526          474          525          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.124N     P=0.397N     P=0.568N     P=0.131N    |P=0.540      P=0.533N     P=0.202      P=0.560N     | 
|POLY 3             |     P=0.170N     P=0.499N     P=0.580N     P=0.203N    |P=0.510N     P=0.555      P=0.181      P=0.564N     | 
|POLY 1.5           |     P=0.159N     P=0.507N     P=0.536N     P=0.193N    |P=0.481N     P=0.567      P=0.188      P=0.535N     | 
|POLY 6             |     P=0.170N     P=0.484N     P=0.546      P=0.199N    |P=0.528N     P=0.530      P=0.170      P=0.587      | 
|LOGISTIC REGRESSION|     P=0.125N     P=0.501N     P=0.509N     P=0.161N    |P=0.461N     P=0.560N     P=0.198      P=0.504N     | 
|COCH-ARM / FISHERS |     P=0.107N     P=0.500N     P=0.500N     P=0.142N    |P=0.345N     P=0.580N     P=0.212      P=0.419N     | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 9       
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Pituitary Gland: Pars Distalis or Unspecified Site                                                                               | 
|     Carcinoma or Adenoma                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     20/50 (40%)  18/50 (36%)  18/50 (36%)  13/50 (26%) |21/50 (42%)  21/50 (42%)  26/50 (52%)  19/50 (38%)  | 
|POLY-3 RATE (b)    |     20/44.92     18/44.62     18/42.45     13/41.07    |21/45.02     21/44.26     26/44.55     19/41.27     | 
|POLY-3 PERCENT (g) |     44.5%        40.3%        42.4%        31.7%       |46.7%        47.5%        58.4%        46.0%        | 
|TERMINAL (d)       |     12/26 (46%)  10/29 (35%)  11/25 (44%)  8/28 (29%)  |9/30 (30%)   16/31 (52%)  14/28 (50%)  11/27 (41%)  | 
|FIRST INCIDENCE    |     503          313          462          629         |462          526          474          525          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.102N     P=0.327N     P=0.496N     P=0.097N    |P=0.540      P=0.533N     P=0.202      P=0.560N     | 
|POLY 3             |     P=0.141N     P=0.425N     P=0.506N     P=0.155N    |P=0.510N     P=0.555      P=0.181      P=0.564N     | 
|POLY 1.5           |     P=0.129N     P=0.429N     P=0.458N     P=0.144N    |P=0.481N     P=0.567      P=0.188      P=0.535N     | 
|POLY 6             |     P=0.143N     P=0.418N     P=0.569N     P=0.156N    |P=0.528N     P=0.530      P=0.170      P=0.587      | 
|LOGISTIC REGRESSION|     P=0.099N     P=0.419N     P=0.426N     P=0.116N    |P=0.461N     P=0.560N     P=0.198      P=0.504N     | 
|COCH-ARM / FISHERS |     P=0.085N     P=0.418N     P=0.418N     P=0.101N    |P=0.345N     P=0.580N     P=0.212      P=0.419N     | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Salivary Glands                                                                                                                  | 
|     Schwannoma Malignant                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    2/50 (4%)    1/49 (2%)    1/50 (2%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/41.37      2/42.42      1/39.36      1/40.12     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     2.4%         4.7%         2.5%         2.5%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/26 (0%)    0/29 (0%)    0/25 (0%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     686          645          630          707         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.544N     P=0.528      P=0.741      P=0.760     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.549N     P=0.509      P=0.750      P=0.754     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.550N     P=0.502      P=0.754      P=0.752     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.545N     P=0.520      P=0.744      P=0.759     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.542N     P=0.500      P=0.758      P=0.757     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.538N     P=0.500      P=0.747      P=0.753N    |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 10      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Basal or Sq. Cell Carcinoma, Carcinoma, Basosq. Tumor                                                                       | 
|     (M or B), Basal Cell Adenoma, Adenoma, Papilloma, Sq Papilloma, Keratoacanthoma, Trichoepitheliom                           | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/50 (8%)    3/50 (6%)    4/50 (8%)    1/50 (2%)   |1/50 (2%)    0/50 (0%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     4/41.22      3/42.14      4/40.53      1/40.18     |1/41.94      0/42.89      1/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     9.7%         7.1%         9.9%         2.5%        |2.4%         0.0%         2.4%         0.0%         | 
|TERMINAL (d)       |     4/26 (15%)   2/29 (7%)    1/25 (4%)    0/28 (0%)   |1/30 (3%)    0/31 (0%)    1/28 (4%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      668          630          691         |728 (T)      ---          728 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.157N     P=0.442N     P=0.605      P=0.163N    |P=0.486N     P=0.493N     P=0.747      P=0.521N     | 
|POLY 3             |     P=0.165N     P=0.488N     P=0.635      P=0.185N    |P=0.476N     P=0.496N     P=0.758      P=0.513N     | 
|POLY 1.5           |     P=0.166N     P=0.498N     P=0.642      P=0.189N    |P=0.473N     P=0.498N     P=0.759      P=0.511N     | 
|POLY 6             |     P=0.160N     P=0.471N     P=0.627      P=0.177N    |P=0.479N     P=0.493N     P=0.758      P=0.513N     | 
|LOGISTIC REGRESSION|     P=0.162N     P=0.468N     P=0.613      P=0.177N    |P=0.486N     (e)          P=0.747      (e)          | 
|COCH-ARM / FISHERS |     P=0.153N     P=0.500N     P=0.643N     P=0.181N    |P=0.459N     P=0.500N     P=0.753N     P=0.500N     | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Fibroma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    3/50 (6%)    1/50 (2%)   |1/50 (2%)    0/50 (0%)    2/50 (4%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/41.22      1/41.91      3/40.09      1/40.04     |1/42.15      0/42.89      2/41.48      0/39.32      | 
|POLY-3 PERCENT (g) |     2.4%         2.4%         7.5%         2.5%        |2.4%         0.0%         4.8%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    1/29 (3%)    2/25 (8%)    1/28 (4%)   |0/30 (0%)    0/31 (0%)    1/28 (4%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      727 (T)      674          727 (T)     |673          ---          723          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.607N     P=0.738N     P=0.293      P=0.746N    |P=0.479N     P=0.489N     P=0.481      P=0.523N     | 
|POLY 3             |     P=0.633N     P=0.757N     P=0.295      P=0.755     |P=0.478N     P=0.497N     P=0.494      P=0.514N     | 
|POLY 1.5           |     P=0.633N     P=0.760N     P=0.302      P=0.753     |P=0.473N     P=0.498N     P=0.496      P=0.512N     | 
|POLY 6             |     P=0.629N     P=0.752N     P=0.285      P=0.759     |P=0.482N     P=0.495N     P=0.492      P=0.515N     | 
|LOGISTIC REGRESSION|     P=0.625N     P=0.738N     P=0.275      P=0.746N    |P=0.470N     P=0.500N     P=0.495      P=0.505N     | 
|COCH-ARM / FISHERS |     P=0.617N     P=0.753N     P=0.309      P=0.753N    |P=0.450N     P=0.500N     P=0.500      P=0.500N     | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 11      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Fibroma, Fibrosarcoma, Sarcoma, Myxoma, Myxosarcoma,                                                                        | 
|     or Fibrous Histiocytoma                                                                                                     | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     3/50 (6%)    3/50 (6%)    4/50 (8%)    2/50 (4%)   |1/50 (2%)    0/50 (0%)    3/50 (6%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     3/41.46      3/41.91      4/40.09      2/40.29     |1/42.15      0/42.89      3/41.71      0/39.32      | 
|POLY-3 PERCENT (g) |     7.2%         7.2%         10.0%        5.0%        |2.4%         0.0%         7.2%         0.0%         | 
|TERMINAL (d)       |     2/26 (8%)    3/29 (10%)   3/25 (12%)   1/28 (4%)   |0/30 (0%)    0/31 (0%)    1/28 (4%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     661          727 (T)      674          661         |673          ---          667          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.387N     P=0.616N     P=0.478      P=0.475N    |P=0.475N     P=0.489N     P=0.297      P=0.523N     | 
|POLY 3             |     P=0.418N     P=0.658N     P=0.482      P=0.513N    |P=0.478N     P=0.497N     P=0.301      P=0.514N     | 
|POLY 1.5           |     P=0.420N     P=0.662      P=0.494      P=0.516N    |P=0.472N     P=0.498N     P=0.302      P=0.512N     | 
|POLY 6             |     P=0.410N     P=0.649N     P=0.464      P=0.504N    |P=0.483N     P=0.495N     P=0.300      P=0.515N     | 
|LOGISTIC REGRESSION|     P=0.412N     P=0.641N     P=0.462      P=0.511N    |P=0.462N     P=0.500N     P=0.301      P=0.505N     | 
|COCH-ARM / FISHERS |     P=0.399N     P=0.661N     P=0.500      P=0.500N    |P=0.442N     P=0.500N     P=0.309      P=0.500N     | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Fibrosarcoma                                                                                                                | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    2/50 (4%)    1/50 (2%)    1/50 (2%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/41.46      2/41.91      1/39.89      1/40.29     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     4.8%         4.8%         2.5%         2.5%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    2/29 (7%)    1/25 (4%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     661          727 (T)      727 (T)      661         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.376N     P=0.659N     P=0.516N     P=0.485N    |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.393N     P=0.691N     P=0.514N     P=0.510N    |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.395N     P=0.693      P=0.505N     P=0.513N    |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.388N     P=0.684N     P=0.526N     P=0.503N    |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.394N     P=0.683N     P=0.520N     P=0.508N    |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.383N     P=0.691N     P=0.500N     P=0.500N    |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 12      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Fibrosarcoma, Sarcoma, Myxosarcoma, or Fibrous Histiocytoma                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    2/50 (4%)    1/50 (2%)    1/50 (2%)   |0/50 (0%)    0/50 (0%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/41.46      2/41.91      1/39.89      1/40.29     |0/41.94      0/42.89      1/41.69      0/39.32      | 
|POLY-3 PERCENT (g) |     4.8%         4.8%         2.5%         2.5%        |0.0%         0.0%         2.4%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    2/29 (7%)    1/25 (4%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     661          727 (T)      727 (T)      661         |---          ---          667          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.376N     P=0.659N     P=0.516N     P=0.485N    |P=0.800N     (e)          P=0.505      (e)          | 
|POLY 3             |     P=0.393N     P=0.691N     P=0.514N     P=0.510N    |P=0.796N     (e)          P=0.499      (e)          | 
|POLY 1.5           |     P=0.395N     P=0.693      P=0.505N     P=0.513N    |P=0.794N     (e)          P=0.499      (e)          | 
|POLY 6             |     P=0.388N     P=0.684N     P=0.526N     P=0.503N    |P=0.797N     (e)          P=0.499      (e)          | 
|LOGISTIC REGRESSION|     P=0.394N     P=0.683N     P=0.520N     P=0.508N    |P=0.787N     (e)          P=0.500      (e)          | 
|COCH-ARM / FISHERS |     P=0.383N     P=0.691N     P=0.500N     P=0.500N    |P=0.785N     (e)          P=0.500      (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Keratoacanthoma                                                                                                             | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    3/50 (6%)    3/50 (6%)    1/50 (2%)   |0/50 (0%)    0/50 (0%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/41.22      3/42.14      3/40.53      1/40.18     |0/41.94      0/42.89      1/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     4.9%         7.1%         7.4%         2.5%        |0.0%         0.0%         2.4%         0.0%         | 
|TERMINAL (d)       |     2/26 (8%)    2/29 (7%)    0/25 (0%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    1/28 (4%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      668          630          691         |---          ---          728 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.309N     P=0.547      P=0.463      P=0.483N    |P=0.802N     (e)          P=0.486      (e)          | 
|POLY 3             |     P=0.319N     P=0.510      P=0.492      P=0.509N    |P=0.796N     (e)          P=0.498      (e)          | 
|POLY 1.5           |     P=0.321N     P=0.502      P=0.498      P=0.512N    |P=0.794N     (e)          P=0.498      (e)          | 
|POLY 6             |     P=0.311N     P=0.524      P=0.485      P=0.500N    |P=0.797N     (e)          P=0.497      (e)          | 
|LOGISTIC REGRESSION|     P=0.317N     P=0.522      P=0.486      P=0.502N    |(e)          (e)          P=0.486      (e)          | 
|COCH-ARM / FISHERS |     P=0.304N     P=0.500      P=0.500      P=0.500N    |P=0.785N     (e)          P=0.500      (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 13      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Squamous Cell Papilloma, Papilloma, Squamous Cell                                                                           | 
|     Carcinoma or Keratoacanthoma                                                                                                | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     3/50 (6%)    3/50 (6%)    4/50 (8%)    1/50 (2%)   |0/50 (0%)    0/50 (0%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     3/41.22      3/42.14      4/40.53      1/40.18     |0/41.94      0/42.89      1/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     7.3%         7.1%         9.9%         2.5%        |0.0%         0.0%         2.4%         0.0%         | 
|TERMINAL (d)       |     3/26 (12%)   2/29 (7%)    1/25 (4%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    1/28 (4%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      668          630          691         |---          ---          728 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.222N     P=0.614N     P=0.462      P=0.286N    |P=0.802N     (e)          P=0.486      (e)          | 
|POLY 3             |     P=0.233N     P=0.653N     P=0.491      P=0.314N    |P=0.796N     (e)          P=0.498      (e)          | 
|POLY 1.5           |     P=0.235N     P=0.661N     P=0.498      P=0.317N    |P=0.794N     (e)          P=0.498      (e)          | 
|POLY 6             |     P=0.227N     P=0.639N     P=0.482      P=0.305N    |P=0.797N     (e)          P=0.497      (e)          | 
|LOGISTIC REGRESSION|     P=0.229N     P=0.639N     P=0.473      P=0.304N    |(e)          (e)          P=0.486      (e)          | 
|COCH-ARM / FISHERS |     P=0.218N     P=0.661N     P=0.500      P=0.309N    |P=0.785N     (e)          P=0.500      (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin                                                                                                                             | 
|     Squamous Cell Papilloma, Papilloma, or Keratoacanthoma                                                                      | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     3/50 (6%)    3/50 (6%)    3/50 (6%)    1/50 (2%)   |0/50 (0%)    0/50 (0%)    1/50 (2%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     3/41.22      3/42.14      3/40.53      1/40.18     |0/41.94      0/42.89      1/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     7.3%         7.1%         7.4%         2.5%        |0.0%         0.0%         2.4%         0.0%         | 
|TERMINAL (d)       |     3/26 (12%)   2/29 (7%)    0/25 (0%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    1/28 (4%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      668          630          691         |---          ---          728 (T)      ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.220N     P=0.614N     P=0.625      P=0.286N    |P=0.802N     (e)          P=0.486      (e)          | 
|POLY 3             |     P=0.228N     P=0.653N     P=0.655      P=0.314N    |P=0.796N     (e)          P=0.498      (e)          | 
|POLY 1.5           |     P=0.229N     P=0.661N     P=0.661      P=0.317N    |P=0.794N     (e)          P=0.498      (e)          | 
|POLY 6             |     P=0.222N     P=0.639N     P=0.649      P=0.305N    |P=0.797N     (e)          P=0.497      (e)          | 
|LOGISTIC REGRESSION|     P=0.225N     P=0.639N     P=0.645      P=0.304N    |(e)          (e)          P=0.486      (e)          | 
|COCH-ARM / FISHERS |     P=0.215N     P=0.661N     P=0.661N     P=0.309N    |P=0.785N     (e)          P=0.500      (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 14      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin: Sebaceous Gland                                                                                                            | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    1/50 (2%)    2/50 (4%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/41.22      1/41.91      1/39.89      2/40.30     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     2.4%         2.4%         2.5%         5.0%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    1/29 (3%)    1/25 (4%)    0/28 (0%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      727 (T)      727 (T)      679         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.367      P=0.738N     P=0.754      P=0.509     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.351      P=0.757N     P=0.754      P=0.492     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.349      P=0.760N     P=0.758      P=0.488     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.357      P=0.752N     P=0.747      P=0.502     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.353      P=0.738N     P=0.754      P=0.493     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.361      P=0.753N     P=0.753N     P=0.500     |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Skin: Sebaceous Gland                                                                                                            | 
|     Carcinoma or Adenoma                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/50 (2%)    1/50 (2%)    2/50 (4%)    3/50 (6%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     1/41.22      1/41.91      2/40.24      3/40.30     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     2.4%         2.4%         5.0%         7.4%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     1/26 (4%)    1/29 (3%)    1/25 (4%)    1/28 (4%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     727 (T)      727 (T)      630          679         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.189      P=0.738N     P=0.485      P=0.321     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.172      P=0.757N     P=0.492      P=0.297     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.171      P=0.760N     P=0.498      P=0.293     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.177      P=0.752N     P=0.483      P=0.306     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.172      P=0.738N     P=0.488      P=0.299     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.182      P=0.753N     P=0.500      P=0.309     |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 15      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Testes                                                                                                                           | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     44/50 (88%)  43/50 (86%)  43/50 (86%)  40/50 (80%) |                                                    | 
|POLY-3 RATE (b)    |     44/47.31     43/46.30     43/47.00     40/44.46    |                                                    | 
|POLY-3 PERCENT (g) |     93.0%        92.9%        91.5%        90.0%       |                                                    | 
|TERMINAL (d)       |     26/26 (100%) 28/29 (97%)  24/25 (96%)  26/28 (93%) |                                                    | 
|FIRST INCIDENCE    |     475          503          484          433         |                                                    | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.250N     P=0.262N     P=0.491      P=0.211N    |                                                    | 
|POLY 3             |     P=0.346N     P=0.658N     P=0.550N     P=0.435N    |                                                    | 
|POLY 1.5           |     P=0.310N     P=0.644N     P=0.493N     P=0.393N    |                                                    | 
|POLY 6             |     P=0.353N     P=0.615N     P=0.613N     P=0.427N    |                                                    | 
|LOGISTIC REGRESSION|     P=0.342N     P=0.581N     P=0.508N     P=0.388N    |                                                    | 
|COCH-ARM / FISHERS |     P=0.160N     P=0.500N     P=0.500N     P=0.207N    |                                                    | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: C-Cell                                                                                                            | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     8/50 (16%)   8/50 (16%)   8/50 (16%)   7/50 (14%)  |11/50 (22%)  8/50 (16%)   10/50 (20%)  9/50 (18%)   | 
|POLY-3 RATE (b)    |     8/42.32      8/42.22      8/40.54      7/40.22     |11/42.19     8/42.98      10/41.91     9/40.05      | 
|POLY-3 PERCENT (g) |     18.9%        19.0%        19.7%        17.4%       |26.1%        18.6%        23.9%        22.5%        | 
|TERMINAL (d)       |     6/26 (23%)   7/29 (24%)   6/25 (24%)   5/28 (18%)  |9/30 (30%)   6/31 (19%)   6/28 (21%)   5/27 (19%)   | 
|FIRST INCIDENCE    |     519          645          582          689         |673          715          673          651          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.417N     P=0.526N     P=0.571      P=0.459N    |P=0.534      P=0.282N     P=0.567N     P=0.494N     | 
|POLY 3             |     P=0.486N     P=0.607      P=0.573      P=0.543N    |P=0.536N     P=0.285N     P=0.507N     P=0.451N     | 
|POLY 1.5           |     P=0.482N     P=0.600      P=0.593      P=0.541N    |P=0.530N     P=0.294N     P=0.507N     P=0.450N     | 
|POLY 6             |     P=0.482N     P=0.598N     P=0.544      P=0.535N    |P=0.531N     P=0.275N     P=0.506N     P=0.441N     | 
|LOGISTIC REGRESSION|     P=0.465N     P=0.595N     P=0.583      P=0.521N    |P=0.562N     P=0.260N     P=0.522N     P=0.464N     | 
|COCH-ARM / FISHERS |     P=0.439N     P=0.607N     P=0.607N     P=0.500N    |P=0.469N     P=0.306N     P=0.500N     P=0.402N     | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 16      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: C-Cell                                                                                                            | 
|     Carcinoma                                                                                                                   | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    1/50 (2%)    0/50 (0%)    1/50 (2%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/42.07      1/42.19      0/39.89      1/40.04     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     4.8%         2.4%         0.0%         2.5%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/26 (0%)    0/29 (0%)    0/25 (0%)    1/28 (4%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     573          654          ---          727 (T)     |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.498N     P=0.482N     P=0.246N     P=0.491N    |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.507N     P=0.499N     P=0.249N     P=0.517N    |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.506N     P=0.502N     P=0.242N     P=0.516N    |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.508N     P=0.493N     P=0.259N     P=0.515N    |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.493N     P=0.494N     P=0.248N     P=0.495N    |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.500N     P=0.500N     P=0.247N     P=0.500N    |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: C-Cell                                                                                                            | 
|     Carcinoma or Adenoma                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     10/50 (20%)  9/50 (18%)   8/50 (16%)   8/50 (16%)  |11/50 (22%)  8/50 (16%)   10/50 (20%)  9/50 (18%)   | 
|POLY-3 RATE (b)    |     10/43.18     9/42.49      8/40.54      8/40.22     |11/42.19     8/42.98      10/41.91     9/40.05      | 
|POLY-3 PERCENT (g) |     23.2%        21.2%        19.7%        19.9%       |26.1%        18.6%        23.9%        22.5%        | 
|TERMINAL (d)       |     6/26 (23%)   7/29 (24%)   6/25 (24%)   6/28 (21%)  |9/30 (30%)   6/31 (19%)   6/28 (21%)   5/27 (19%)   | 
|FIRST INCIDENCE    |     519          645          582          689         |673          715          673          651          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.361N     P=0.417N     P=0.436N     P=0.360N    |P=0.534      P=0.282N     P=0.567N     P=0.494N     | 
|POLY 3             |     P=0.440N     P=0.516N     P=0.454N     P=0.462N    |P=0.536N     P=0.285N     P=0.507N     P=0.451N     | 
|POLY 1.5           |     P=0.429N     P=0.517N     P=0.423N     P=0.452N    |P=0.530N     P=0.294N     P=0.507N     P=0.450N     | 
|POLY 6             |     P=0.446N     P=0.507N     P=0.499N     P=0.465N    |P=0.531N     P=0.275N     P=0.506N     P=0.441N     | 
|LOGISTIC REGRESSION|     P=0.410N     P=0.497N     P=0.410N     P=0.422N    |P=0.562N     P=0.260N     P=0.522N     P=0.464N     | 
|COCH-ARM / FISHERS |     P=0.380N     P=0.500N     P=0.398N     P=0.398N    |P=0.469N     P=0.306N     P=0.500N     P=0.402N     | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 17      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: Follicular Cell                                                                                                   | 
|     Adenoma                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/50 (0%)    1/50 (2%)    1/50 (2%)    3/50 (6%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     0/41.22      1/41.91      1/39.89      3/40.12     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     0.0%         2.4%         2.5%         7.5%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/26 (0%)    1/29 (3%)    1/25 (4%)    2/28 (7%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     ---          727 (T)      727 (T)      707         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.069      P=0.522      P=0.492      P=0.131     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.059      P=0.503      P=0.493      P=0.113     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.059      P=0.500      P=0.498      P=0.112     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.061      P=0.509      P=0.487      P=0.117     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.061      P=0.522      P=0.492      P=0.119     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.064      P=0.500      P=0.500      P=0.121     |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: Follicular Cell                                                                                                   | 
|     Carcinoma                                                                                                                   | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    1/50 (2%)    0/50 (0%)    1/50 (2%)   |1/50 (2%)    0/50 (0%)    0/50 (0%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     2/41.22      1/42.48      0/39.89      1/40.04     |1/41.94      0/42.89      0/41.46      1/39.32      | 
|POLY-3 PERCENT (g) |     4.9%         2.4%         0.0%         2.5%        |2.4%         0.0%         0.0%         2.5%         | 
|TERMINAL (d)       |     2/26 (8%)    0/29 (0%)    0/25 (0%)    1/28 (4%)   |1/30 (3%)    0/31 (0%)    0/28 (0%)    1/27 (4%)    | 
|FIRST INCIDENCE    |     727 (T)      551          ---          727 (T)     |728 (T)      ---          ---          728 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.494N     P=0.469N     P=0.246N     P=0.474N    |P=0.514      P=0.493N     P=0.514N     P=0.739      | 
|POLY 3             |     P=0.508N     P=0.489N     P=0.244N     P=0.510N    |P=0.524      P=0.496N     P=0.502N     P=0.746      | 
|POLY 1.5           |     P=0.507N     P=0.497N     P=0.240N     P=0.513N    |P=0.527      P=0.498N     P=0.502N     P=0.748      | 
|POLY 6             |     P=0.509N     P=0.478N     P=0.251N     P=0.503N    |P=0.521      P=0.493N     P=0.503N     P=0.746      | 
|LOGISTIC REGRESSION|     P=0.508N     P=0.500N     (e)          P=0.474N    |P=0.514      (e)          (e)          P=0.739      | 
|COCH-ARM / FISHERS |     P=0.500N     P=0.500N     P=0.247N     P=0.500N    |P=0.541      P=0.500N     P=0.500N     P=0.753N     | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 18      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thyroid Gland: Follicular Cell                                                                                                   | 
|     Carcinoma or Adenoma                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    2/50 (4%)    1/50 (2%)    4/50 (8%)   |1/50 (2%)    0/50 (0%)    0/50 (0%)    1/50 (2%)    | 
|POLY-3 RATE (b)    |     2/41.22      2/42.48      1/39.89      4/40.12     |1/41.94      0/42.89      0/41.46      1/39.32      | 
|POLY-3 PERCENT (g) |     4.9%         4.7%         2.5%         10.0%       |2.4%         0.0%         0.0%         2.5%         | 
|TERMINAL (d)       |     2/26 (8%)    1/29 (3%)    1/25 (4%)    3/28 (11%)  |1/30 (3%)    0/31 (0%)    0/28 (0%)    1/27 (4%)    | 
|FIRST INCIDENCE    |     727 (T)      551          727 (T)      707         |728 (T)      ---          ---          728 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.206      P=0.660N     P=0.514N     P=0.365     |P=0.514      P=0.493N     P=0.514N     P=0.739      | 
|POLY 3             |     P=0.184      P=0.683N     P=0.511N     P=0.324     |P=0.524      P=0.496N     P=0.502N     P=0.746      | 
|POLY 1.5           |     P=0.184      P=0.691N     P=0.504N     P=0.321     |P=0.527      P=0.498N     P=0.502N     P=0.748      | 
|POLY 6             |     P=0.186      P=0.672N     P=0.522N     P=0.334     |P=0.521      P=0.493N     P=0.503N     P=0.746      | 
|LOGISTIC REGRESSION|     P=0.186      P=0.694N     P=0.514N     P=0.331     |P=0.514      (e)          (e)          P=0.739      | 
|COCH-ARM / FISHERS |     P=0.196      P=0.691N     P=0.500N     P=0.339     |P=0.541      P=0.500N     P=0.500N     P=0.753N     | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Polyp Stromal                                                                                                               | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |7/50 (14%)   8/50 (16%)   7/50 (14%)   6/50 (12%)   | 
|POLY-3 RATE (b)    |                                                        |7/42.67      8/42.99      7/42.31      6/39.59      | 
|POLY-3 PERCENT (g) |                                                        |16.4%        18.6%        16.6%        15.2%        | 
|TERMINAL (d)       |                                                        |5/30 (17%)   6/31 (19%)   4/28 (14%)   5/27 (19%)   | 
|FIRST INCIDENCE    |                                                        |621          716          559          656          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.481N     P=0.529      P=0.578      P=0.565N     | 
|POLY 3             |                                                        |P=0.453N     P=0.506      P=0.608      P=0.558N     | 
|POLY 1.5           |                                                        |P=0.442N     P=0.504      P=0.608      P=0.549N     | 
|POLY 6             |                                                        |P=0.461N     P=0.508      P=0.607      P=0.565N     | 
|LOGISTIC REGRESSION|                                                        |P=0.450N     P=0.526      P=0.607      P=0.549N     | 
|COCH-ARM / FISHERS |                                                        |P=0.385N     P=0.500      P=0.613N     P=0.500N     | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 19      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus                                                                                                                           | 
|     Sarcoma Stromal or Polyp Stromal                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |7/50 (14%)   8/50 (16%)   7/50 (14%)   7/50 (14%)   | 
|POLY-3 RATE (b)    |                                                        |7/42.67      8/42.99      7/42.31      7/39.88      | 
|POLY-3 PERCENT (g) |                                                        |16.4%        18.6%        16.6%        17.6%        | 
|TERMINAL (d)       |                                                        |5/30 (17%)   6/31 (19%)   4/28 (14%)   5/27 (19%)   | 
|FIRST INCIDENCE    |                                                        |621          716          559          651          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.524      P=0.529      P=0.578      P=0.551      | 
|POLY 3             |                                                        |P=0.554      P=0.506      P=0.608      P=0.561      | 
|POLY 1.5           |                                                        |P=0.562      P=0.504      P=0.608      P=0.567      | 
|POLY 6             |                                                        |P=0.551      P=0.508      P=0.607      P=0.560      | 
|LOGISTIC REGRESSION|                                                        |P=0.554      P=0.526      P=0.607      P=0.567      | 
|COCH-ARM / FISHERS |                                                        |P=0.517N     P=0.500      P=0.613N     P=0.613N     | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|All Organs                                                                                                                       | 
|     Leukemia: Lymphocytic, Monocytic, Mononuclear, or                                                                           | 
|     Undifferentiated                                                                                                            | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     15/50 (30%)  16/50 (32%)  12/50 (24%)  16/50 (32%) |7/50 (14%)   14/50 (28%)  8/50 (16%)   10/50 (20%)  | 
|POLY-3 RATE (b)    |     15/44.05     16/45.08     12/42.28     16/42.12    |7/43.03      14/45.28     8/43.35      10/41.99     | 
|POLY-3 PERCENT (g) |     34.1%        35.5%        28.4%        38.0%       |16.3%        30.9%        18.5%        23.8%        | 
|TERMINAL (d)       |     5/26 (19%)   4/29 (14%)   4/25 (16%)   8/28 (29%)  |4/30 (13%)   6/31 (19%)   2/28 (7%)    2/27 (7%)    | 
|FIRST INCIDENCE    |     519          313          526          484         |596          510          491          495          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.470      P=0.567N     P=0.411N     P=0.529     |P=0.444      P=0.101      P=0.491      P=0.264      | 
|POLY 3             |     P=0.401      P=0.532      P=0.368N     P=0.438     |P=0.493      P=0.084      P=0.506      P=0.275      | 
|POLY 1.5           |     P=0.408      P=0.511      P=0.342N     P=0.438     |P=0.489      P=0.076      P=0.501      P=0.269      | 
|POLY 6             |     P=0.408      P=0.563      P=0.403N     P=0.457     |P=0.507      P=0.094      P=0.513      P=0.288      | 
|LOGISTIC REGRESSION|     P=0.454      P=0.500      P=0.328N     P=0.468     |P=0.529      P=0.071      P=0.500      P=0.288      | 
|COCH-ARM / FISHERS |     P=0.478      P=0.500      P=0.326N     P=0.500     |P=0.536      P=0.070      P=0.500      P=0.298      | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 20      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|All Organs                                                                                                                       | 
|     Mesothelioma: Benign, Malignant, NOS                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    0/50 (0%)    2/50 (4%)    4/50 (8%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/41.35      0/41.91      2/39.89      4/40.84     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     4.8%         0.0%         5.0%         9.8%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/26 (0%)    0/29 (0%)    2/25 (8%)    2/28 (7%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     699          ---          727 (T)      604         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.097      P=0.230N     P=0.651      P=0.354     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.084      P=0.234N     P=0.682      P=0.331     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.083      P=0.237N     P=0.690      P=0.324     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.087      P=0.229N     P=0.669      P=0.345     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.083      P=0.229N     P=0.661      P=0.325     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.090      P=0.247N     P=0.691N     P=0.339     |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|All Organs                                                                                                                       | 
|     Mesothelioma: Malignant                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/50 (4%)    0/50 (0%)    2/50 (4%)    4/50 (8%)   |0/50 (0%)    0/50 (0%)    0/50 (0%)    0/50 (0%)    | 
|POLY-3 RATE (b)    |     2/41.35      0/41.91      2/39.89      4/40.84     |0/41.94      0/42.89      0/41.46      0/39.32      | 
|POLY-3 PERCENT (g) |     4.8%         0.0%         5.0%         9.8%        |0.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/26 (0%)    0/29 (0%)    2/25 (8%)    2/28 (7%)   |0/30 (0%)    0/31 (0%)    0/28 (0%)    0/27 (0%)    | 
|FIRST INCIDENCE    |     699          ---          727 (T)      604         |---          ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.097      P=0.230N     P=0.651      P=0.354     |(e)          (e)          (e)          (e)          | 
|POLY 3             |     P=0.084      P=0.234N     P=0.682      P=0.331     |(e)          (e)          (e)          (e)          | 
|POLY 1.5           |     P=0.083      P=0.237N     P=0.690      P=0.324     |(e)          (e)          (e)          (e)          | 
|POLY 6             |     P=0.087      P=0.229N     P=0.669      P=0.345     |(e)          (e)          (e)          (e)          | 
|LOGISTIC REGRESSION|     P=0.083      P=0.229N     P=0.661      P=0.325     |(e)          (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.090      P=0.247N     P=0.691N     P=0.339     |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 21      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|All Organs                                                                                                                       | 
|     Benign Tumors                                                                                                               | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     49/50 (98%)  47/50 (94%)  49/50 (98%)  45/50 (90%) |37/50 (74%)  41/50 (82%)  41/50 (82%)  35/50 (70%)  | 
|POLY-3 RATE (b)    |     49/49.00     47/47.99     49/49.19     45/45.21    |37/46.19     41/46.12     41/45.50     35/42.20     | 
|POLY-3 PERCENT (g) |     100.0%       97.9%        99.6%        99.5%       |80.1%        88.9%        90.1%        83.0%        | 
|TERMINAL (d)       |     26/26 (100%) 29/29 (100%) 25/25 (100%) 28/28 (100%)|22/30 (73%)  28/31 (90%)  26/28 (93%)  22/27 (82%)  | 
|FIRST INCIDENCE    |     475          313          462          433         |462          474          474          525          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.300N     P=0.225N     P=0.408      P=0.233N    |P=0.522      P=0.385      P=0.211      P=0.483      | 
|POLY 3             |     P=0.721      P=0.500N     P=1.000N     P=1.000N    |P=0.532N     P=0.176      P=0.132      P=0.471      | 
|POLY 1.5           |     P=0.551N     P=0.429N     P=0.920N     P=0.600N    |P=0.444N     P=0.195      P=0.159      P=0.539      | 
|POLY 6             |     P=0.630      P=0.530N     P=1.000N     P=1.000N    |P=0.566      P=0.152      P=0.103      P=0.421      | 
|LOGISTIC REGRESSION|     P=0.476N     P=0.454N     (e)          (e)         |P=0.424N     P=0.251      P=0.179      P=0.574      | 
|COCH-ARM / FISHERS |     P=0.075N     P=0.309N     P=0.753N     P=0.102N    |P=0.187N     P=0.235      P=0.235      P=0.412N     | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|All Organs                                                                                                                       | 
|     Malignant Tumors                                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     29/50 (58%)  25/50 (50%)  22/50 (44%)  25/50 (50%) |12/50 (24%)  17/50 (34%)  14/50 (28%)  15/50 (30%)  | 
|POLY-3 RATE (b)    |     29/45.98     25/46.62     22/44.55     25/43.17    |12/44.49     17/45.47     14/45.00     15/43.17     | 
|POLY-3 PERCENT (g) |     63.1%        53.6%        49.4%        57.9%       |27.0%        37.4%        31.1%        34.8%        | 
|TERMINAL (d)       |     11/26 (42%)  9/29 (31%)   9/25 (36%)   14/28 (50%) |6/30 (20%)   8/31 (26%)   4/28 (14%)   4/27 (15%)   | 
|FIRST INCIDENCE    |     475          313          419          484         |406          510          483          379          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.390N     P=0.234N     P=0.254N     P=0.280N    |P=0.348      P=0.244      P=0.394      P=0.275      | 
|POLY 3             |     P=0.499N     P=0.237N     P=0.129N     P=0.388N    |P=0.398      P=0.202      P=0.422      P=0.288      | 
|POLY 1.5           |     P=0.474N     P=0.259N     P=0.112N     P=0.375N    |P=0.394      P=0.194      P=0.411      P=0.283      | 
|POLY 6             |     P=0.505N     P=0.209N     P=0.162N     P=0.378N    |P=0.411      P=0.217      P=0.439      P=0.304      | 
|LOGISTIC REGRESSION|     P=0.396N     P=0.274N     P=0.116N     P=0.326N    |P=0.466      P=0.188      P=0.417      P=0.334      | 
|COCH-ARM / FISHERS |     P=0.354N     P=0.274N     P=0.115N     P=0.274N    |P=0.456      P=0.189      P=0.410      P=0.326      | 
|=================================================================================================================================| 
       Date:  06/12/01                           EXPERIMENT: 88122 TEST: 06                                            Page 22      
                     Statistical Analysis of Primary Tumors in Rats(FISCHER 344)       -                      ELMIRON               
                                         Terminal Sacrifice at 104 weeks                                                            
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     0 MG/KG      14 MG/KG     42 MG/KG     126         |0 MG/KG      28 MG/KG     84 MG/KG     252          | 
|                   |                                            MG/KG       |                                       MG/KG        | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|All Organs                                                                                                                       | 
|     Malignant and Benign Tumors                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     49/50 (98%)  48/50 (96%)  50/50 (100%) 45/50 (90%) |42/50 (84%)  45/50 (90%)  44/50 (88%)  40/50 (80%)  | 
|POLY-3 RATE (b)    |     49/49.00     48/48.04     50/50.00     45/45.21    |42/47.56     45/47.52     44/46.73     40/45.18     | 
|POLY-3 PERCENT (g) |     100.0%       99.9%        100.0%       99.5%       |88.3%        94.7%        94.2%        88.5%        | 
|TERMINAL (d)       |     26/26 (100%) 29/29 (100%) 25/25 (100%) 28/28 (100%)|25/30 (83%)  29/31 (94%)  26/28 (93%)  22/27 (82%)  | 
|FIRST INCIDENCE    |     475          313          419          433         |406          474          474          379          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.277N     P=0.277N     P=0.354      P=0.233N    |P=0.463      P=0.458      P=0.316      P=0.463      | 
|POLY 3             |     P=1.000N     P=1.000N     P=1.000      P=1.000N    |P=0.396N     P=0.218      P=0.251      P=0.616      | 
|POLY 1.5           |     P=0.176N     P=1.000N     P=1.000      P=0.600N    |P=0.387N     P=0.224      P=0.281      P=0.622      | 
|POLY 6             |     P=1.000N     P=1.000N     P=1.000      P=1.000N    |P=0.363N     P=0.219      P=0.234      P=0.618N     | 
|LOGISTIC REGRESSION|     P=0.195N     (e)          (e)          (e)         |P=0.465N     P=0.284      P=0.331      P=0.602      | 
|COCH-ARM / FISHERS |     P=0.031N*    P=0.500N     P=0.500      P=0.102N    |P=0.182N     P=0.277      P=0.387      P=0.398N     | 
|=================================================================================================================================| 
(a)  Number of tumor-bearing animals /  number of animals examined at site.                                                         
(b)  Number of tumor-bearing animals / Poly-3 number                                                                                
(d)  Observed incidence at terminal kill.                                                                                           
(f)  Beneath the control incidence are the P-values associated with the trend                                                       
test.  Beneath the dosed group incidence are the P-values corresponding to                                                          
pairwise comparisons between the controls and that dosed group.  The life                                                           
table analysis regards tumors in animals dying prior to  terminal kill as                                                           
 being (directly or indirectly) the cause of death.                                                                                 
Logistic regression is an alternative                                                                                               
 method for analyzing the incidence of non-fatal tumors. The Cochran-Armitage                                                       
and Fishers exact tests compare directly the overall incidence rates                                                                
For all tests a negative trend is indicated by N                                                                                    
(e)  Value of Statistic cannot be computed.                                                                                         
(g)  Poly-3 adjusted lifetime tumor incidence.                                                                                      
(I)  Interim sacrifice                                                                                                              
(T)  Terminal sacrifice                                                                                                             
#   Tumor rates based on number of animals necropsied.                                                                              
*   To the right of any statistical result, indicates significance at (P<=0.05).                                                    
**  To the right of any statistical result, indicates significance at (P<=0.01).