Open Access
Description is a free website that provides patients, their family members, health care professionals, researchers, and the public with easy access to information on publicly and privately supported clinical studies on a wide range of diseases and conditions. It is maintained by the National Library of Medicine (NLM) at the National Institutes of Health (NIH). Information on is provided and updated by the sponsor or principal investigator of each clinical study. Each record on presents summary information about the study’s protocol, and some records also include information on the study’s results.

Dates covered

Current information.

National Library of Medicine