OnCore is a comprehensive Clinical Trials Management System (CTMS) designed to enhance the efficiency and accuracy of clinical research administration. OnCore integrates various components for the successful management of clinical trials, including study participant tracking, financial management, and regulatory compliance. OnCore usage requires registration with the Clinical Trials Support Unit (CTSU) to ensure streamlined operations and support for clinical research activities. Additionally, to access and utilize eReg, the electronic regulatory binder, users must first be registered with OnCore.