National Cancer Institute   U.S. National Institutes of Health |
Clinical Trials Support Unit


ECOG-ACRIN Patient Registration System is experiencing network delays. Please do not submit registrations at this time. Please email if you have an urgent time of need registration.

Welcome to the Oncology Patient Enrollment Network (OPEN) Portal system

OPEN is the web-based registration system for patient enrollments onto NCI-sponsored Network Group clinical trials. The system is integrated with the CTSU Enterprise System for regulatory and roster data, and with each of the Network Groups' registration/randomization systems for patient registration/ randomization. OPEN provides the ability to enroll patients on a 24/7 basis.

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