Related Pages Search for Clinical Trials 1 NCI's PDQ® registry of cancer clinical trials. Educational Materials About Clinical Trials 2 What clinical trials are, how they work, and other educational materials for patients and professionals. Related Information View/Print a PDF of this guide 3 Need help finding a trial?   Call 1-800-4-CANCER

Now that you have found one or more clinical trials for which you think you are eligible and that may be a good treatment option for you, it is time to make a telephone call to each trial's contact person so you can ask a few more crucial questions. Then, you will be ready to make a final treatment decision.