Cancer Trials A service of the National Cancer Institute.
CenterWatch Clinical Trials Listing Service glossary of terms.
ClinicalTrials.gov Provided by The National Institutes of Health, through the National Library of Medicine.
The Clinical Trials Education Series from NCI Basic and advanced educational materials about clinical trials; includes workbooks, brochures, slide shows, and videos for a variety of audiences.
CyberMedTrials.org Non-Profit Organization Dedicated to Cancer Clinical Trials.
Virtual Trials Clinical trials and noteworthy treatments for brain tumors. Maintained by the Musella Foundation For Brain Tumor Research Information.