Difference between phase 2 and phase 3

Question

Accepted Answer

Phase 2 focuses on efficacy and safety, while phase 3 evaluates effectiveness and monitors side effects.

Phase 2 typically involves a larger group of participants compared to phase 1.
Phase 3 trials are randomized and often include a control group for comparison.
Phase 2 trials help determine the optimal dose for further testing, while phase 3 assesses the overall benefit-risk ratio.
Phase 2 studies may last several months to a year, while phase 3 trials can span several years.
Examples: Phase 2 trial for a new cancer drug may focus on tumor shrinkage rates, while phase 3 trial may assess overall survival rates.

Top Octavus Consulting Director Delivery interview questions & answers