Clinical studies involve research conducted with human participants to evaluate the safety and effectiveness of medical treatments, drugs, or procedures. These studies are essential for advancing medical knowledge and improving patient care. Clinical studies can be observational or interventional, and may involve various phases to test the efficacy and safety of new treatments before they are approved for use in patients. Researchers in clinical studies work closely with healthcare professionals and adhere to strict ethical guidelines to ensure the well-being and rights of study participants.