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Clinical Vs Pre clinical

Clinical research is a branch of healthcare science that determines the safety and effectiveness (efficacy) of medications, devices, diagnostic products and treatment regimens intended for human use. These may be used for prevention, treatment, diagnosis or for relieving symptoms of a disease. In drug development, preclinical development, also termed preclinical studies or nonclinical studies, is a stage of research that begins before clinical trials and during which important feasibility, iterative testing and drug safety data are collected, typically in laboratory animals.