Clinical Trials

Clinical trials are prospective biomedical or behavioural research studies involving human subjects that aim to provide answers to particular questions about biomedical or behavioural interventions. These include both established and novel treatments (such as novel vaccines, drugs, dietary choices, dietary supplements, and medical devices) as well as interventions that have already been tried and tested but still require more research and comparison. Data on dosage, safety, and effectiveness are produced by clinical trials. In the nation where therapy approval is sought, they are only carried out after receiving approval from the health authority or ethics committee. These authorities are in charge of evaluating the trial's risk/benefit ratio; their approval merely permits the trial to proceed and does not imply that the therapy is "safe" or effective. In small pilot studies, researchers first enrol volunteers or patients, depending on the product type and stage of development.