Data Collection and EDC Systems Flashcards

What is the primary advantage of using an Electronic Data Capture (EDC) system over paper CRFs?

Answer: Real-time data entry with immediate edit checks and faster query resolution

EDC systems provide real-time data entry with immediate programmed edit checks, accelerating query generation and resolution and improving overall data quality compared to paper CRFs.

What is a 'patient-reported outcome' (PRO) instrument in clinical data collection?

Answer: A validated tool that collects health data directly from the patient without clinician interpretation

A PRO instrument collects data directly from patients about their symptoms, functioning, or quality of life without clinician interpretation, often administered via ePRO devices or paper diaries.

In EDC systems, what is the purpose of 'form versioning'?

Answer: To track changes to CRF forms after protocol amendments while preserving historical data

Form versioning tracks and manages changes to CRF designs after protocol amendments, ensuring that historical data collected under old versions is preserved and clearly distinguished.

What is 'eCOA' in clinical data collection?

Answer: Electronic Clinical Outcome Assessment — collecting patient or clinician outcomes via electronic devices

eCOA refers to electronic Clinical Outcome Assessments, encompassing ePRO, eClinRO, eObsRO, and ePerFO instruments delivered via electronic devices to capture outcome data.

What is the purpose of a 'completion guideline' for a CRF in clinical data collection?

Answer: To provide site staff with instructions on how to correctly complete each field in the CRF

Completion guidelines give site staff detailed instructions for each CRF field, including definitions, acceptable formats, and examples, to ensure consistent and accurate data entry.

Which CDISC standard is designed to support the operational collection of clinical data through standardized CRF field definitions?

Answer: CDASH

CDASH (Clinical Data Acquisition Standards Harmonization) defines standardized question text and field names for CRF data collection, facilitating consistent collection and downstream SDTM mapping.