trials Flashcards
before trials
rigorous testing on animals, including apes
phase I
-usually healthy volunteers- small sample size-used to test drug safety and drug dosage
goal of phase I
to establish safety, effectiveness, chosen delivery method and dosage of new treatment- important information regarding side effects
Phase II
larger sample size-to test if the drug works on people with the disease- dosage- deeper evaluation of safety and effectiveness100-300n
phase II includes
participants with relevant conditions
phase III
full blown RCT- intervention and control group-large sample size -long time period-efficacy confirmation-deep risk/benefit analysis
sample size of phase II
1000 to 3000
phase IV
regular review of safety and efficacy - ensuring benefits always outweigh risks
long term side effects and cost effectiveness measured in
phase IV