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


CTSU Systems staff will be performing emergency maintenance this Friday, July 19th, between 10:00 PM and 11:59 PM EST. This website may be unavailable intermittently during this time period. We apologize for any inconvenience this may cause you.

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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