Phases of Drug Development : A Comprehensive Review

Drug development is a complex and highly regulated process that transforms a potential therapeutic compound into a safe and effective medica on of human use. The process involves several stages including drug discovery, preclinical research, and mul ple phases of clinical trials before regulatory approval and marke ng. Each stage of drug development is designed to evaluated the safety, efficacy pharmacokinetics, and pharmacodynamics of a poten al drug. Despite technological advancements, drug development remains me-consuming, costly, and associated with high failure rates. The review paper examine the major phases of drug development, including drug discovery, preclinical studies, clinical trial phases I- IV, regulatory approval, and post-marke ng surveillance. The paper also discusses the challenges and future prospects in pharmaceutical research and development. Understanding the phases of drug development is essen al for researchers, healthcare professionals, and regulatory agencies, to ensure that the new medica on are safe effective, and beneficial for patient