NIH has just released a proposed rule that would clarify and expand requirements for the submission of clinical trial registration and results information, including adverse event information, to the ClinicalTrials.gov database in conformance with the Food and Drug Administration Amendments Act of 2007 (FDAAA). The rule would implement the statutory requirement for the submission of summary results information for trials involving drugs, biological products, and devices that are approved, licensed, or cleared by FDA, and it proposes to extend such requirements to clinical trials of drugs, biological products, and devices that are not approved, licensed, or cleared by FDA. Among other things, the proposed rule would require the responsible party (i.e., the trial sponsor or principal investigator) to register an applicable clinical trial no later than 21 days after enrolling the first participant, and results generally would be required to be submitted no later than 1 year after the completion date of the clinical trial (the date of final data collection for the primary outcome measure studied). Results submission could be delayed for up to two additional years with certification that either an unapproved, unlicensed, or uncleared product studied in the trial is still under development by the manufacturer or that approval will be sought for a new use of an approved, licensed, or cleared product that is being studied in the trial. Extension requests also could be submitted for “good cause.” With regard to adverse events reporting, the proposed rule would require the responsible party to submit information summarizing the number and frequency of adverse events experienced by participants enrolled in a clinical trial, by arm and organ system, and it specifies the form of that reporting. The proposed rule would require submitted information to be updated at least annually if there are changes to report, with provisions for more rapid updating in certain circumstances. The proposed rule does not impose requirements on the design or conduct of clinical trials or on the data that must be collected during clinical trials. The proposed rule is scheduled to be published on November 21, 2014, and comments will be accepted for 90 days after publication.