<prompt> Good clinical practice GCP is not required in:Preclinical phasePhase I trialPhase II studiesPhase IV studies  <response>: Ans. A Preclinical PhaseRef: KDT 8the p90 GCP guidelines are made to safeguard the interest of subjects in clinical trials. These have to be adhered to in all phases of clinical trials. Preclinical trials are performed in animals for which different regulations are given by CPCSEA Committee for the Purpose of Control and Supervision of Experiments on Animals. 