Who is Eligible?
Each clinical trial defines who is eligible to take part in the study.
Each trial must include only people who fit the patient traits for that study (the eligibility criteria). Some trials enroll people who have a specific disease or condition. Others enroll healthy people to test new approaches to prevention, diagnosis, or screening.
In general, patients must:
- Have their general health status reviewed by a physician,
- have their cancer diagnosed and “staged,” which means evaluated for how far it has spread,
- have all their treatment-related and clinical trial questions answered to their satisfaction,
- and sign an informed consent document, which means they understand the possible risks and benefits and agree to participate in a clinical trial.