Dr Tess Lawrie Explains Normal Timelines For Clinical Trials
197 Views
11
Animal Studies
Phase 1 around 100 subjects or less takes weeks to a few months
Phase 2 few hundred subjects taking 1 to 3 years
Phase 3 Usually a few hundred to 3 thousand of subjects 1 to 3 years
Phase 4 Post marketing, long term safety
Phase 1 around 100 subjects or less takes weeks to a few months
Phase 2 few hundred subjects taking 1 to 3 years
Phase 3 Usually a few hundred to 3 thousand of subjects 1 to 3 years
Phase 4 Post marketing, long term safety