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Trial Registration Service Documentation

Legacy services are provided here for backward-compatibilty only


The CTRP has deprecated our caGrid dependencies and have changed our services to use the more user friendly RESTful architecture. Our new services are available as of the CTRP version 4.1 release. As part of this change we are creating a set of transition services. Although not dependent on caGrid, they are 100% backward compatible with the caGrid services currently in use. Our objective is to keep these services running until our users have had the opportunity to upgrade to our new RESTful services in their own environments. We will determine a date for deprecating the transition services through continuous dialog with the community.

Our goal is to ensure backward compatibility during this transition period. If you have any questions, concerns, or comments, please email Jose Galvez, MD at

This version continues support for the following services:

  • PA caGrid Services: 3.4
  • PO caGrid Services: 3.2 and 3.0

The service documents in this section pertain to the legacy version of the trial registration service.



If you would like additional information about how to use the CTRP Trial Registration Services or Batch Upload, please send your inquiry or request to NCI Application Support at



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