ClinicalTrial.gov (CT.gov)

This is a web-based registry and results database for clinical studies. It is maintained by the federal government to provide 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.  The information in CT.gov is provided and updated by the sponsor or principal investigator of the clinical study. Studies are generally registered when they begin, and the information on the site is updated throughout the study.