What are clinical trials?
Clinical trials are research studies that test medical treatments —such as new drugs, devices, or ways of delivering care —to learn more about their safety, effectiveness, and whether they work better than current options. They follow a written plan (“Protocol”) and include informed consent so you can decide whether participation is right for you. (U.S. Food and Drug Administration; ICH Official website: ICH)
Why are clinical trials necessary?
Trials generate the evidence regulators and clinicians rely on to approve new therapies, refine dosing, understand side effects, and improve standards of care. Without this stepwise testing, promising ideas can’t be shown to benefit patients in the real world.
Regulation and safety
Clinical research is tightly regulated and independently reviewed to protect participants’ rights, safety, and data. Globally, Good Clinical Practice (ICH‑GCP) sets quality and ethical standards for how trials are designed, run, and documented.
- United States: The Food and Drug Administration (FDA) regulates trials of drugs, biologics, and devices. Every study must use informed consent and be overseen by an Institutional Review Board (IRB), per 21 CFR Parts 50 and 56. Many institutions also follow the HHS “Common Rule” (45 CFR 46), overseen by the Office for Human Research Protections (OHRP). (eCFR)
- Canada: Health Canada regulates clinical trials (Food and Drug Regulations, Part C, Division 5) and aligns with ICH‑GCP. Ethics review is conducted by Research Ethics Boards (REBs) guided by the Tri‑Council Policy Statement (TCPS 2). (Canada.ca)
- Australia: The Therapeutic Goods Administration (TGA) oversees trials—often via the CTN/CTX schemes for unapproved therapeutics. Ethical review is provided by Human Research Ethics Committees (HRECs) using the National Statement on Ethical Conduct in Human Research. (Therapeutic Goods Administration (TGA))
These reviews focus on minimizing risk, safeguarding privacy, and ensuring you can ask questions and withdraw at any time without penalty. (HHS.gov)
Potential benefits to participants
While benefits aren’t guaranteed, participants may gain early access to promising therapies, receive closer monitoring from a dedicated study team, and contribute to discoveries that may help them and future patients. Discuss potential risks and benefits with the study staff before you decide. (U.S. Food and Drug Administration)