CCDM Data Collection Methods 3 — Questions and Answers
Question 1: Which principle of Good Clinical Data Management Practice (GCDMP) requires that all collected data be traceable to the original source?
- Data minimization
- Source data verification (SDV) (Correct answer)
- Data standardization
- Query management
Correct answer: Source data verification (SDV)
SDV ensures that data recorded in the CRF or EDC can be verified against the original source documents at the investigative site.
Question 2: In a multicenter trial, what is the MAIN challenge of using multiple paper CRF versions across sites?
- Increased electronic audit trail complexity
- Inconsistent data collection leading to comparability issues (Correct answer)
- Higher EDC hosting costs
- Delayed IRB approval timelines
Correct answer: Inconsistent data collection leading to comparability issues
Different CRF versions across sites can produce inconsistent data fields, making cross-site data comparisons unreliable.
Question 3: What does 'targeted SDV' mean in the context of risk-based monitoring?
- Verifying all data at every site visit
- Focusing verification on critical data fields and high-risk sites (Correct answer)
- Performing SDV only for primary endpoints
- Conducting SDV remotely for all subjects
Correct answer: Focusing verification on critical data fields and high-risk sites
Targeted SDV concentrates verification resources on the most critical data points and sites identified as higher risk.
Question 4: Which method is used to collect pharmacokinetic (PK) data in clinical trials?
- Patient diary entries
- Blood and urine sample collection with laboratory analysis (Correct answer)
- Vital signs measured by site staff
- Quality of life questionnaires
Correct answer: Blood and urine sample collection with laboratory analysis
PK data is derived from biological samples such as blood or urine that are analyzed to measure drug concentrations over time.
Question 5: A sponsor decides to implement central monitoring in addition to on-site monitoring. What type of data collection insight does central monitoring primarily provide?
- Protocol eligibility screening results
- Statistical signals and outliers identified from aggregated site data (Correct answer)
- Patient consent documentation status
- Site staff training records
Correct answer: Statistical signals and outliers identified from aggregated site data
Central monitoring analyzes aggregated data across sites to detect statistical anomalies, trends, and potential data integrity issues.
Question 6: Which term describes the process of capturing data from external sources such as laboratories and transferring it into the clinical database?
- Data transcription
- External data transfer or data import (Correct answer)
- Manual data entry
- Source document archiving
Correct answer: External data transfer or data import
External data transfers involve importing structured data files from vendors like central labs into the trial's clinical database.
Question 7: In an eClinical environment, which standard is most commonly used to define the structure of data transferred between a laboratory and the EDC system?
- CDISC CDASH
- HL7 or CDISC LAB XML format (Correct answer)
- ICH E3 narrative format
- NCI thesaurus coding
Correct answer: HL7 or CDISC LAB XML format
HL7 and CDISC LAB XML formats are widely used standards for electronic exchange of laboratory data between external vendors and clinical systems.
CCDM Data Collection Methods 3
Which principle of Good Clinical Data Management Practice (GCDMP) requires that all collected data be traceable to the original source?