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


On Monday, June 1 between 2:00 pm and 6:30 pm (PT), the COG IT department will be conducting system maintenance on the eRDES system located on the COG Members Website. Please note the COG Patient Registry in OPEN and the TUMS module as well as RSS transactions will be unavailable during this time.

Please plan accordingly to ensure business continuity during this time period.

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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