Research

Clinical Trials

Find out information on clinical research studies and clinical trials provided by the U.S. National Library of Medicine.

LEARN ABOUT CLINICAL STUDIES

ClinicalTrials.gov

  • Provides updated information about federally and privately supported clinical research in human volunteers.
  • Includes biomedical or health-related research studies in human beings that follow a pre-defined protocol.
  • Includes both interventional and observational types of studies.
    • Interventional studies: Research subjects are assigned by the investigator to a treatment or other intervention, and their outcomes are measured.
    • Observational studies: Individuals are observed and their outcomes are measured by the investigators.