June 2022: What’s New on ClinicalTrials.gov

On June 15, 2022, the below update was posted on ClinicalTrials.gov, What’s New section

The British Medical Journal (BMJ) has published an article specifying the approaches to report master protocol study designs on ClinicalTrials.gov.

A master protocol is a unified study design and operational aspect conducted with a collection of trials or substudies in patients having same or different diseases and that employ one or multiple drugs to treat them. It helps achieve better coordination than can be achieved in single trials designed and conducted independently.

This article proposes reporting each master protocol research programs (MPRPs) substudy in a separate study record to allow for meaningful descriptions of each substudy and to better support the transparency and accountability. Other factors that require further consideration include coordinating the registration and results reporting of MPRPs, supporting the identification of MPRP related records, and harmonizing trial registries worldwide

Other Publications on ClinicalTrials.gov can be found here: Selected publications

June 2022: What’s New on ClinicalTrials.gov

On June 09, 2022, the following updates were posted on the  Clinicaltrials.gov What’s New section.

The new FAQ for the deadline for submitting a good cause extension for prematurely terminated studies have been included and the information to be taken into consideration for registering expanded access records have been updated.

A responsible party must submit results information no later than one year after the primary completion date unless the responsible party has submitted a certification of delay, a request for an extension for good cause, or a request for a waiver of the requirements for submission of results information.

The standard results information submission deadline is one year after the actual Primary Completion Date. The termination date does not impact the actual Primary Completion Date or the standard results information submission deadline.

A good cause extension request submitted on or after the standard results information submission deadline date, would be late and would not be accepted, regardless of when the decision to terminate the trial was made.

More information can be found here: FAQ

Detailed considerations for registering expanded access records can be found here.

April 2022: Missing study records on Clinicaltrials.gov for orphan drugs approved by FDA– A TransperiMED Report

An article “No records found for 220 clinical trials of orphan drugs approved by the FDA” has been published on April 27, 2022, on TranspariMED.

According to the article, around 63 orphan drugs were approved by the FDA between 2009 – 2019, which accounted for 422 clinical trials.  A total of only 202 clinical trials could be located on ClinicalTrials.gov while 220 study records could not be traced. The study further focused on comparing data elements such as enrolment and study phase. It was observed that the enrolment data did not match for 30% of cases and the study phase data matched only for 75% cases.

The study team also stated that there could be various reasons why a trial could not be found on ClinicalTrials.gov, including that some studies may have run before ClinicalTrials.gov was established, some were Phase 1 trials that were not required to be registered until Final rule, some trials may remain unregistered in the US and some matches of studies on ClinicalTrials.gov may not have been identified, although such a match did exist.

The original article can be accessed here.








April 2022: What’s New on ClinicalTrials.gov Beta

On April 27, 2022, ClinicalTrials.gov Beta website, Release notes section posted an update on the new features, improvements and bug fixes added.

The key updates made in the different sections are as follows:

    1. Study record page
      • Added MeSH terms and FDA drug and device information to the More Information section
      • Added Study record dates just above the Study Overview
      • Added FDAAA 801 Violations information
      • Provided information when a study does not meet the FDA clinical device criteria
      • Added information to the results tab explaining why a user may not see study results
    2. Expanded Access records
      • Updated the Study Overview to show only relevant information
      • Added links to related studies
      • Added links to resources
    3. Expanded download file formats to include comma-separated values (.csv)


    1. Study record page
      • Added ability to expand or collapse specific content in the study record
      • Improved mobile design view
    2. Simplified the ability to select data fields for download from the search results or a study record

Bugs fixed

    1. Added a notice when study location information is not available
    2. Corrected accordion behavior in the mobile view
    3. Repaired glossary links missing in mobile view

Additionally, the feature for ‘Advanced search’ will be coming soon.

More information on previous improvements, bug fixes, and upcoming releases can be found at Release Notes | Beta ClinicalTrials.gov.

April 2022: What’s New on ClinicalTrials.gov

On April 07, 2022, Clinicaltrials.gov posted an update on the FAQs for expanded access and all cause mortality and also included resources for NIH Data Sharing Policies.

New and Updated FAQs added on the Frequently Asked Questions (FAQs) page

The following are included under the section expanded access

The following was added under the section Results Information and Submission Deadlines

Resource for NIH Data Sharing Policies Added: The Support Materials page has been updated with information on the new NIH Scientific Data Sharing Website.

March 2022: Sponsors Fail to Upload Pediatric Clinical Trials on ClinicalTrials.gov – A TransperiMED Report

An article “Where are the results for these 2,272 clinical trials involving children? ” was published on March 29, 2022 on TranspariMED.

This article, states that around 2,272 clinical trials involving children had not made their results public within three years of trial completion. On examining trial registries and academic journals, it was found that almost half (48%) of the clinical trial results could not be traced. The article also informs that academic trials (45%) involving children were much less likely make their results public within three years than trials sponsored by government (59%) or industry (61%). This article was originally published by the American Academy of Pediatrics – Early Discontinuation, Results Reporting, and Publication of Pediatric Clinical Trials.

According to the Final rule regulation for ClinicalTrials.gov, results information submission requirements must be submitted by the responsible party no later than 1 year after the primary completion date. The ClinicalTrials.gov registry also enables researchers to rapidly make results public without compromising their ability to later publish the same results in a medical journal.

As per the article, the study included all interventional pediatric trials, including trials run abroad by non-US sponsors. It excluded trials that involved both children and adults. The study analyzed a total of 4,657 pediatric trials registered on ClinicalTrials.gov from October 2007 that had been completed by March 2017. Of these, only 24% had reported results to the ClinicalTrials.gov registry, and 39% had published results in a peer-reviewed Journal, within three years of completion.

The article concluded that targeted efforts are needed to support trial completion and timely results dissemination toward strengthening evidence-based pediatric medicine.

More information can be found here


March 2022: What’s New on ClinicalTrials.gov

On March 08, 2022,  ClinicalTrials.gov posted an update on the new features, improvements and bug fixes added on the Clinicaltrials.gov Beta website.

The key updates made in different section are as follows:

    • Study record page:
        • Made explanations available for suspended, withdrawn, and terminated studies
        • Made acronyms available after the study title
        • Provide Study Documents when they are part of the study record
        • Added fields to the More Information section about the Individual Participant Data (IPD) Plan
    • JSON download of search results now has an option to select all or de-select all of the most popular fields
    • Release Notes page added so users will know what changes have been made to the website with each release

More information on the improvements, bug fixes, upcoming releases can be found at: Release Notes | Beta ClinicalTrials.gov

January 2022: What’s New on ClinicalTrials.gov

On January 19, 2022, Clinicaltrials.gov posted an update on the New and Updated FAQs to Clarify the Deadline for Submitting Good Cause Extension Requests for Delayed Submission of Results Information.

The Frequently Asked Questions (FAQs) page has new and updated content under the Results Information and Submission Deadlines section:

The same update was posted on Clinicaltrials.gov PRS Test, which will go live on January 25, 2022:

Good Cause Extension for Results: Responsible parties may only submit good cause extension requests for delayed submission of results information prior to the date (i.e., the day before) that results information would otherwise be due.

December 2021: What’s New on ClinicalTrials.gov

On December 22, 2021,  ClinicalTrials.gov  updated the materials for Modernization and Beta Website webinar: A recording of the December 10, 2021 webinar and slides describing the launch of beta ClinicalTrials.gov and demonstration have been added to the ClinicalTrials.gov Modernization page. This webinar provides an update on the modernization effort and a demonstration of the beta ClinicalTrials.gov website.

December 2021: What’s New on ClinicalTrials.gov

ClinicalTrials.gov Beta Website

On December 08, 2021,  ClinicalTrials.gov posted an update announcing the first release of the beta ClinicalTrials.gov website and it can be accessed at: ClinicalTrials.gov beta website. More information on the new features that the website provides can be found at: NLM Technical Bulletin.

Also, PRS Beta will be released to the PRS Test system in early 2022, giving users an opportunity to explore the new PRS experience, performance of new technology, and to provide feedback to help improve future PRS Beta releases.  A recorded demonstration to preview PRS Beta is now available.