NTP Non-Cancer Evaluation Criteria

NTP is working to bring the same rigorous standards used for categorizing the outcomes of its cancer studies to its non-cancer studies (developmental, immunotoxicity, and reproductive studies).

Non-Cancer Evaluation Categories

NTP uses the following five categories to describe the strength of the evidence for non-cancer study findings:

Clear Evidence
Some Evidence
Equivocal Evidence
No Evidence
Inadequate study

For more information, contact:

Paul M. Foster, Ph.D.
Discipline Leader for Reproduction and Development
Chief, Toxicology Branch
National Toxicology Program, NIH/NIEHS
P.O. Box 12233 MD K2-12, Research Triangle Park, NC 27709
Phone: 984-287-3131
Email: foster2@niehs.nih.gov

Dori Germolec, Ph.D.
Discipline Leader for Immunology
Toxicology Branch
National Toxicology Program, NIH/NIEHS
P.O. Box 12233 MD K2-12, Research Triangle Park, NC 27709
Phone: 984-287-3134
Email: germolec@niehs.nih.gov