Clinical trials investigate dosage, safety, efficacy and potential outcomes of drugs or treatments in disease-specific populations through controlled trials. There are typically three stages or phases of clinical trials that must be performed before a drug or treatment may be submitted to regulatory agencies (ie: U.S. Food & Drug Administration) for approval. Prior to commencing a clinical trial, a drug must have demonstrated safety and efficacy in a laboratory model.
The method in which the drug is administered into the body.
The disease, disorder, syndrome, illness, or injury that is being studied.