What is eSource?

eSource is the electronic recording of source data in a digital system at the point of origin, where the data is first captured, created, and maintained, eliminating the need for paper-based source documents.

eSource is used at investigational sites to capture study data directly during patient visits and trial activities. It is applied for recording patient assessments, medical history, vital signs, questionnaires, and visit data in electronic forms. eSource is also used with electronic patient-reported outcomes and connected medical devices, allowing data to be collected and reviewed in real time during monitoring and verification activities.

Clinion supports electronic source data by enabling study information to be captured directly within its integrated eSource and EDC platform. Site staff can record assessments, visit data, and participant responses in structured electronic forms at the point of entry. Built-in validations, role-based access, and complete audit trails help maintain data quality and control. The electronic source data is immediately available for review and monitoring, supporting efficient verification and oversight.

In practice, electronic source data is captured as study activities are performed, with site staff entering information directly into the system during participant visits. Data such as assessments, visit details, and patient responses are recorded electronically at the time of collection. This allows immediate availability for monitoring, faster query resolution, and a smoother, paperless workflow.

Source Data

Monitoring

CRA

Data Verification

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eSource