Phase II

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The aim of the Phase-II trial is to check the efficacy of drug that hava successfully completed the Phase-I trial.Initally the drug is tested on a subgroup. If the response of patients in this subgroup is not in conformity with the study’s objectives, the trials are immediately stopped.

This process is also divided into two parts.

  1. Phase-IIa
  2. Phase-IIb

The phase-II trial help us in understanding these things

  1. Side-effects of drug molecule and risk associated with short term uses.
  2. Effect of the drug on metabolism.
  3. Optimization of the dosage and treatment duration.