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Identifiers
Overton ID
oecddiscovery-e7370a1ba06eb5ee949e9d6092a0e785
Test No. 452: Chronic Toxicity Studies
The objective of these chronic toxicity studies is to characterize the profile of a substance in a mammalian species (primarily rodents) following prolonged and repeated exposure.
The Test Guideline focuses on rodents and oral administration. Both sexes should be used. For rodents, at least 20 animals per sex per group should normally be used at each dose level, while for non-rodents a minimum of 4 per sex per group is recommended. At least three dose levels should be used in addition to the concurrent control group. Frequency of exposure normally is daily, but may vary according to the route chosen (oral, dermal or inhalation) and should be adjusted according to the toxicokinetic profile of the test substance. The duration of the exposure period should be 12 months. The study report should include: measurements (weighing) and regular detailed observations (haematological examination, urinalysis, clinical chemistry), as well as necropsy procedures and histopathology.
Topics in this document
Dose (biochemistry)
Toxicology
Diet (nutrition)
Water
Chronic toxicity
Pesticide
No-observed-adverse-effect level
OECD
Medical specialties
Toxicity
Clinical medicine
Animal testing
Solution (chemistry)
Statistics
Clinical endpoint
Transaminase
Food
Dose–response relationship
Tuberculosis
Bioavailability
Urinary bladder
Autopsy
Respiratory tract
Health
Cervix
Ureter
Chronic condition
Drinking water
Route of administration
Related SDGs
SDG 12: Responsible Consumption and Production ...
SDG 12: Responsible Consumption and Production
Target 12.4
Achieve the environmentally sound management of chemicals and all wastes throughout their life cycle, in accordance with agreed international frameworks, and significantly reduce their release to air, water and soil in order to minimize their adverse impacts on human health and the environment
Citations
Cited by 39
other policy documents
(38 of them are from other policy sources)