WHO International Clinical Trials Registry

This is a platform to ensure that a complete view of research is accessible to all those involved in health care decision making. This will improve research transparency and will ultimately strengthen the validity and value of the scientific evidence base.

ClinicalTrials.gov

This is an initiative of the U.S. National Institutes of Health and is a registry and results database of publicly and privately supported clinical studies of human participants conducted around the world.

Clinical Trials Registry-India (CTRI)

The Clinical Trials Registry- India (CTRI), hosted at the ICMR-National Institute of Medical Statistics (NIMS), is a free and online public record system for registration of clinical trials being conducted in India that was launched on 20th July 2007.