Cancer Institute A national cancer institute
designated cancer center
Cancer Clinical Trials Office


As a requirement of our NCI Cancer Center designation, the Cancer Institute must track all cancer-related clinical research, which includes, but is not limited to, clinical trials (interventional studies). All prospective cancer-related research studies of any type (therapeutic and non-therapeutic, intervention and non-intervention) and the accrual to these studies must be tracked in OnCore.

Therapeutic studies Clinical trials with therapeutic intent using drugs, radiation, surgery, other biological agents, or behavioral or other interventions.

Non-therapeutic studies include prevention, supportive care, screening, early detection, diagnostic, epidemiologic, observational, outcome, ancillary and correlative studies.

Intervention Studies (Clinical Trials) include therapeutic, intervention prevention and intervention supportive care studies. The NIH defines a clinical trial as a prospective biomedical or behavioral research study of human subjects that is designed to answer specific questions about biomedical or behavioral interventions (drugs, treatments, devices, or new ways of using known drugs, treatments, or devices).

Non-Intervention Studies (Clinical Research Studies) include non-intervention prevention, non-intervention supportive care, epidemiologic, observational, correlative, early detection, screening, diagnostic, outcomes or ancillary studies.

OnCore®, Stanford’s secure centralized system for tracking cancer-related clinical research, is licensed from Forte Research Systems, Inc. The secure OnCore server is housed on the Stanford campus and is supported by the School of Medicine IRT Data Center group.

Protocol Registration in OnCore

  1. As soon as the new protocol is submitted to, please complete the Protocol Registration Form. The Protocol Registration Form is used to create the protocol record in OnCore and the Stanford Clinical Trials database, and subsequently, ClinicalTrials.Gov. Instructions for accessing the form can be found here.

    Studies must be in OnCore prior to SRC review. The CCTO will download all documents from eProtocol and attach them in OnCore.

  2. Once all appropriate approvals and contracts are in place, OnCore will send a "Ready to Open Study" notice asking to respond with the correct Open to Accrual (Enrollment) date. If the study does not have an external budget/contract, we do not send out a "Ready to Open Study" notice. The study may be opened to accrual by sending the open to accrual date to

Study Participant Registration and Ongoing Study Conduct

  1. Once your study is Open to Enrollment, register your study participants in OnCore. As required by the SRC, all study participants must be registered in OnCore within 5 business days of signing the consent.

  2. When the status of your study changes (accrual suspension, accrual closure or study termination) send email to indicating the status change, reason for the change and initiator of the change, along with the OnCore and/or eProtocol protocol numbers.

  3. New: Instruction on required participant data and protocol status updates.

For more information on using OnCore, see the OnCore v12 Quick Reference, or contact the OnCore team.

Study Data Collection for Investigator Initiated Studies

OnCore can be used to collect study data for Investigator Initiated trials. To request assistance with the development of electronic Case Report Forms (eCRFs) in OnCore, Please fill the form at You can use this link to request development of any new calendars/eCRFs or for any modifications to existing ones 

CCTO staff works closely with study staff to create eCRFs and train study staff on data entry into the OnCore database.

Registration can be accessed through the STARS system. Search "OnCore" to view the session. Registration should be made in advance of 4 days prior to the session. The class will be cancelled if there is less than a minimum of three people. For questions on OnCore training, contact
Basic Training (Required):
General overview of and introduction to OnCore functionality, review of OnCore data entry requirements for research studies and hands-on practice plus OnCore homepage setup for your favorite protocols, participants, reports, searches and more
Aug 6 Basic Training Alway M206 2:00PM-4:30PM
Comprehensive Training (Optional):
Please note that CITI/HIPAA training must be completed prior to OnCore access and training.
OnCore Resources

Stanford Medicine Resources:

Footer Links: