ClinicalTrials.gov is a global platform for registering the clinical trials. It is not a World Health Organization (WHO) recognized primary registry. However, the clinical trials registered on this registry fulfill the criteria for publication of the manuscript in an International Committee of Medical Journal Editors (ICMJE) accredited journal. The registration of protocols and submission of results is governed by the NIH Final Rule (42 CFR Part 11), which has been in effect since January 18, 2017. This regulation requires registration and results reporting for phase 2-4 interventional clinical trials. Phase 1 and observational trials can be registered voluntarily on clinicalTrials.gov.
| Registries at a Glance | |||||
| Registry | PHUSE Categorization | Information to be Entered By | Route of Data in Registry | Study Type | Language |
| ClinicalTrials.gov | Country requiring/recommending ClinicalTrials.gov use | Sponsor | Through a dedicated registration platform (process independent from clinical trial application) |
Interventional (Phases 2-4) |
English |
| Registration and Results Requirements | |||
| Registry | Activity | Legal Requirement | Timing |
| ClinicalTrials.gov | Registration |
Yes |
Within 21 days of first patient enrollment |
| Results |
Yes |
Primary Results - within one year of primary completion date (PCD); Subsequent Results - within one year of the last subject last visit for each secondary outcome measure (SOM); Final Results - within one year of the study completion date | |
Registry Updates
- October 2021: What’s New on ClinicalTrials.gov - Below update was posted on ClinicalTrials.gov What’s New section on October 08, 2021: Train-the-Trainer Materials Available: The materials from the August 2021 Results Database Train-the-Trainer virtual workshop are now on the Training Materials page. The topics covered in the workshop included an Overview of the Clinical Trial Disclosure Landscape, a PRS System Overview, NIH Requirements for Clinical … Continue reading "October 2021: What’s New on ClinicalTrials.gov"
- October 2021: ClinicalTrials.gov Modernization Webinar Update - A Webinar on ClinicalTrials.gov Modernization took place on October 7, 2021. A summary report on the progress in ClinicalTrials.gov modernization effort from August 2019 to August 2021 is now published by the National Institutes of Health (NIH). This report gives detailed insight into the National Library of Medicine (NLM’s) approach to modernization, presents the Working … Continue reading "October 2021: ClinicalTrials.gov Modernization Webinar Update"
- September 2021: What’s New on ClinicalTrials.gov - Below update was posted on ClinicalTrials.gov What’s New section on September 16, 2021: Webinar on ClinicalTrials.gov Modernization: Join us on October 7, 2021, from 1:30 to 2:00 p.m. ET for an update on the ClinicalTrials.gov modernization effort. Please register via the ClinicalTrials.gov webinar registration page to learn more about the modernization efforts and information on the anticipated … Continue reading "September 2021: What’s New on ClinicalTrials.gov"
References
- ClinicalTrials.gov Protocol Registration Data Element Definitions for Interventional and Observational Studies. ClinicalTrials.gov. https://prsinfo.clinicaltrials.gov/definitions.html. Published June 27, 2018. Accessed March 13, 2019.
- ClinicalTrials.gov Results Data Element Definitions for Interventional and Observational Studies. ClinicalTrials.gov. https://prsinfo.clinicaltrials.gov/results_definitions.html. Published June 27, 2018. Accessed March 13, 2019.
- Frequently Asked Questions – ClinicalTrials.gov. ClinicalTrials.gov. https://clinicaltrials.gov/ct2/manage-recs/faq#fr_23. Published November 2018. Accessed March 13, 2019.