Clinical Trial Management Software Development

The EDC system is designed around your specific protocol, not a generic study template. Data entry screens reflect the visit schedule, assessments, and data collection points defined in the protocol so investigators work through a familiar structure without having to interpret a general-purpose form. Validation rules are configured per field -- range checks, mandatory field enforcement, and data type constraints -- so out-of-protocol values are flagged at the point of entry rather than discovered during data review weeks later. Multi-site architecture gives each site its own access-controlled workspace while presenting a consolidated data view to the sponsor and data management team. Query management workflows route data queries directly to the site that entered the record, with query resolution tracked against the specific field and visit in question.

Electronic case report forms are built in a visual configuration tool that allows the data management team to assemble forms from field types -- text, numeric, date, dropdown, checkbox -- without writing code. Skip logic controls which fields and sections are visible based on prior answers so investigators are only shown fields that are applicable to the subject's status. Cross-field validation rules catch logical inconsistencies between fields before the record is saved -- a date of adverse event that falls before the subject's enrolment date, for example, is flagged immediately. Form versions are managed with change control so protocol amendments can be applied to the form without disrupting data already collected under the prior version. Completed forms are locked after site sign-off to prevent retroactive changes without an audit trail entry.

Site activation workflows track each site from contract execution through investigator credentialing, IRB approval, and the first subject enrolled. Investigator records store delegation logs, training completion status, and signature specimens so the trial master file stays current without a manual document collection exercise before each inspection. Patient enrolment by site is tracked against the site's enrolment target, with the sponsor dashboard showing actual versus planned enrolment across all sites in real time. Screen failure tracking records subjects who were screened but not enrolled, with the primary screen failure reason captured for protocol feasibility analysis. Site visit documentation -- monitoring visit reports, protocol deviation records, and corrective action tracking -- is stored against the site record and accessible to the monitor and the sponsor throughout the study.

Adverse events are captured as structured records with the event description, onset date, severity grading, and relationship to study treatment recorded against the subject. Seriousness criteria are evaluated at the time of entry -- if the event meets serious adverse event criteria based on the entered data, a regulatory reporting workflow is triggered automatically rather than relying on the investigator to recognise the reporting obligation. Causality assessment by the investigator is recorded and, where required, by the medical monitor. For expedited reports -- IND safety reports to FDA under 21 CFR 312.32, or SUSARs under EU CTR -- the system generates a structured output with the data fields required for the submission, reducing the time from event to report. Aggregate safety data is available to the safety team at any point in the study without waiting for a data cut.

Every change to every record in the system is logged with the user identity, the previous value, the new value, the date and time, and the reason for the change where the data type requires one. The audit trail is read-only and cannot be modified or deleted, satisfying the 21 CFR Part 11 requirement that records be accurate, complete, consistent, and indelible. Electronic signatures are bound to the user's authenticated identity and the specific record being signed, with a confirmation step that presents the meaning of the signature to the signer before it is applied. Signature events are logged in the audit trail like any other record change. The audit trail and signature records are exportable in a structured format for inspection review or litigation hold without requiring access to the production system.

Data collected in the EDC is mapped to CDISC Study Data Tabulation Model (SDTM) domains at the configuration stage, so the domain structure and variable names reflect the submission requirements from the first data entry rather than being retrofit at the end of the study. Pre-export data quality checks run against the CDISC conformance rules and against the study-specific Define.xml to identify non-conformance issues before the dataset package is generated. The export produces the SDTM datasets, the Define.xml, and the annotated CRF in the format required for an FDA or EMA electronic submission. If the study also requires analysis datasets in ADaM format, the derivation rules are configured against the SDTM source datasets so the statistical programming team receives a clean foundation rather than raw extracted data.