Electronic Clinical Outcome Assessment (eCOA) refers to validated digital tools used to collect clinical outcome data, including patient-reported, clinician-reported, and observer-reported measures.
eCOA replaces or supplements paper assessments to improve completeness, timeliness, and standardization of endpoint data. It reduces transcription errors and supports automated logic checks that help minimize missing or inconsistent entries. Systems must be secure, validated, and configured to protect privacy and maintain auditability. Well-implemented eCOA improves endpoint reliability and supports regulatory-quality evidence generation.