This is a preview of updates coming to the Technical Bulletin's website in April 2026. Return to current site.
Read more about the modernization release schedule in this announcement.
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2025-08-29
The ClinicalTrials.gov Protocol Registration and Results System (PRS) continues to evolve, bringing new features and enhancements that improve usability and expand functionality for clinical trial sponsors and researchers to register proto ... ...
2025-07-31
Screen scraping definedScreen scraping involves extracting data from a website by mimicking the actions a user would take when interacting with the website, such as clicking buttons and moving through pages. Data is captured through the vi ... ...
2025-06-12
In August 2024, the Modernized Protocol Registration and Results System (PRS) became the primary website for Protocol Registration. The PRS is used by researchers to register studies on ClinicalTrials.gov. Users logging into PRS first see ... ...
2024-11-01
Learn how to use the modernized ClinicalTrials.gov website in the new on-demand course, "An Introduction to ClinicalTrials.gov." This free course, offered through the Network of the National Library of Medicine (NNLM) Moodle platform, is d ... ...
2024-08-07
On August 28, 2024, the Protocol Registration and Results System (PRS) Beta will become the primary website for protocol registration and management of your list of study records. New features of the Modernized PRS website include:An enhan ... ...
2024-06-25
[Editor's Note: This is a reprint of an announcement from NCBI Insights. To automatically receive NCBI announcements see the RSS Feeds & ListServs page]A Modern ClinicalTrials.gov WebsiteClassic website no longer available effective June 2 ... ...
2024-06-13
ClinicalTrials.gov study records consist of required and optional data elements that summarize a study's protocol and results information. Sponsors and investigators submit the information for their studies during registration and results ... ...
2024-05-13
Want to learn more about the modernized ClinicalTrials.gov website and its features? The National Library of Medicine (NLM) is hosting a virtual webinar on Thursday, June 6, 2024, from 1 - 1:45 p.m. ET to provide an update on the overall m ... ...
2024-03-14
The ClinicalTrials.gov API version 2.0 is now available on the modernized ClinicalTrials.gov website. The API, or application programming interface, is a tool to help researchers and developers access the data in ClinicalTrials.gov study r ... ...
2023-11-27
The modernized version of the ClinicalTrials.gov public website has served as the primary site since June 2023. As the modernization effort continues, information about regulations and policies related to clinical trial registration and re ... ...