CancerExplained.org · Free health handout
Understanding Informed Consent
Your rights before and during a clinical trial
What informed consent is
- A process — not just a signature — that explains a study before you decide to join.
- The research team walks you through the study's purpose, procedures, schedule, and possible benefits and risks.
- You receive the information in writing and can take it home to review with family or your doctor.
What the consent form covers
- Why the study is being done and what treatments or tests are involved.
- Possible risks, side effects, and benefits — including unknowns.
- What costs are covered by the study sponsor and what may fall to you or your insurance.
- How your personal information will be protected.
Your rights, always
- Joining is completely voluntary — declining does not affect your standard care.
- You can ask questions at any time, before and during the study.
- You can leave the trial at any time, for any reason.
- You will be told about new information that might affect your willingness to continue.
Consent is an ongoing conversation. If anything is unclear, ask — the research team is required to explain until it makes sense.
This handout is for education only and is not medical advice. Talk with a qualified healthcare professional about what is right for you.
Sources: NCI: Patient safety in trials · NCI: Clinical trials information. Updated 2026-07-05.
Learn more in plain language: https://cancerexplained.org/clinical-trials/how-they-work/ — free to copy and share for non-commercial education.