Some clinical trials test an already approved drug that is used in a different way or to treat a different disease. Other clinical trials evaluate a new drug or drug combination to ensure the treatment is safe and will benefit patients. In some cases, the clinical trial could include surgery, chemotherapy, radiation, or immunotherapy. The clinical trial team will explain any tests, treatments, and/or procedures involved in their clinical trial. For more information, visit CancerCare’s clinical trial resources.