General information Protocol Registration System login Protocol Registration TEST System

Update on WMA Declaration of Helsinki – Ethical Principles for Medical Research Involving Human Subjects, Paragraph 35 and 36, released October 2013

Office of Extramural Research (OER) 
Frequently Asked Questions for NIH Grantees 

ICMJE Clinical Trial Registration
ICMJE - Questions about Clinical Trial Registration
ICMJE Recommendations for the Conduct, Reporting, Editing and Publication of Scholarly Work in Medical Journals

Note: ICJME and many other journals have information regarding clinical trial registration in their Instructions for Authors section.

Center for Medicare & Medicaid Services (CMS): Mandatory Reporting of an 8-digit Clinical Trial Number on Medicare & Medicaid Claims

Center for Drug Evaluation and Research; US Food and Drug Administration. Guidance for industry information program on clinical trials for serious or life-threatening diseases and conditions. Available Here

WHO International Clinical Trials Registry Platform (ICTRP)

National Library of Science and Medicine Questions