Improving Public Access to Aggregate Content of ClinicalTrials.gov

Database Migration

We migrated to a new postgres server on September 20, 2024. This server has a new IP address and if you are connecting from inside a network that requires outside connections to be whitelisted you might have to whitelist this new server. The new IP address is 159.89.247.181.

What is AACT?

AACT is a publicly available relational database that contains all information (protocol and result data elements) about every study registered in ClinicalTrials.gov. Content is downloaded from ClinicalTrials.gov daily and loaded into AACT. The Clinical Trials Transformation Initiative (CTTI) enhanced AACT in October, 2016 to include the following features:

Database content refreshed daily
Database directly accessible in the cloud
Static copies of the database available for download
Open source tools freely available (postgreSQL, Ruby on Rails, Tableau Public)
Source code available via Github

Practical Info for Researchers and Analysts Researcher's Guide to Using AACT News Related Publications More Practical Advice How to avoid common problems when using ClinicalTrials.gov in research