PDQ stands for Physician Data Query. The information in PDQ is reviewed each month by cancer experts and updated when there is new information. PDQP provides protocol information on over 1,000 active clinical trials, supported by NCI and other agencies.
Clinical trials are studies that use new treatments to care for patients.
During clinical trials, information is gathered about new treatments, their risks, and how well they do or do not work. If clinical trials show that the new treatment is better than the treatment currently being used, the new treatment may become the standard treatment. PDQD lists names and addresses of physicians and organizations devoted to cancer care.