NIH maintains the
ClinicalTrials.gov website as the main database of clinical trials. Each trial has its own pre-defined research plan—called a protocol—a specific goal or goals, and specific requirements for eligibility. The database includes studies that are looking for participants, in progress but not looking for participants, stopped, or completed.
NICHD requires that all of its clinical studies be included in the NIH clinical trials database. The
NICHD-supported clinical trials link lists all NICHD studies on the ClinicalTrials.gov website.
NIH Clinical Research Trials and You website provides more information on NIH-supported clinical research, including information for volunteers, parents and children, health care providers, and researchers.
Video: What is Clinical Research?
What is Clinical Research? Text Alternative.