CCRA Certified Clinical Research Study 4 — Questions and Answers
Question 1: During site close-out, the CRA confirms that all essential documents are filed, IP is reconciled, and staff is debriefed. Which document officially marks the end of a site's participation in a trial?
- Final Monitoring Visit Report
- Site Close-Out Letter (Correct answer)
- End-of-Study Notification to IRB
- Final Data Transfer Agreement
Correct answer: Site Close-Out Letter
The Site Close-Out Letter is the formal communication from the sponsor to the investigator confirming the site's participation in the study has ended.
Question 2: Which ICH guideline specifically addresses the statistical principles for the design and analysis of confirmatory clinical trials?
- ICH E3
- ICH E9 (Correct answer)
- ICH E6
- ICH E8
Correct answer: ICH E9
ICH E9 (Statistical Principles for Clinical Trials) provides guidance on statistical methodology for confirmatory efficacy and safety trials.
Question 3: A study subject becomes pregnant during a clinical trial of a teratogenic investigational compound. After being taken off study drug, what additional obligation typically applies?
- The pregnancy must be reported as an SAE and followed to outcome (Correct answer)
- The site must immediately terminate the subject's participation with no follow-up
- The sponsor has no further obligations once the drug is stopped
- The subject should be referred to a different clinical trial
Correct answer: The pregnancy must be reported as an SAE and followed to outcome
Pregnancies in trials of potentially teratogenic drugs are typically reportable SAEs, and pregnancy outcomes (including neonatal outcomes) must be tracked and reported.
Question 4: Which of the following best describes 'audit trail' as it relates to electronic data capture (EDC) systems under 21 CFR Part 11?
- A paper log of all system logins
- A secure, computer-generated record that captures who made changes, what was changed, and when (Correct answer)
- A monthly backup of the database
- The investigator's signature on the eCRF
Correct answer: A secure, computer-generated record that captures who made changes, what was changed, and when
21 CFR Part 11 requires EDC systems to maintain a secure, time-stamped audit trail of all data entries and changes attributable to the individual who made them.
Question 5: In a double-blind, randomized clinical trial, who is permitted to access the randomization codes in an emergency?
- The CRA upon sponsor request
- The treating physician when unblinding is medically necessary for a subject's safety (Correct answer)
- The IRB chairperson at any time
- The sponsor's biostatistician during interim analysis
Correct answer: The treating physician when unblinding is medically necessary for a subject's safety
Emergency unblinding is permitted when the treating physician determines that knowledge of treatment assignment is necessary to provide appropriate medical care to the subject.
Question 6: A site investigator wants to add a new co-investigator to the trial team mid-study. What GCP-required steps must be completed before the new co-investigator can perform any study activities?
- Verbal approval from the CRA is sufficient
- IRB approval, CV submission, GCP training documentation, and addition to the delegation log (Correct answer)
- Only signature of a new CTA amendment is needed
- The sponsor must issue a formal protocol amendment
Correct answer: IRB approval, CV submission, GCP training documentation, and addition to the delegation log
New study personnel must have updated CVs on file, documented GCP training, IRB acknowledgment per site SOP, and be formally delegated responsibilities on the delegation of authority log.
Question 7: What is the main distinction between an 'adverse event' (AE) and an 'adverse drug reaction' (ADR) in clinical trial terminology?
- AEs occur only in the placebo arm; ADRs occur in the active treatment arm
- An ADR implies a causal relationship to the investigational product, while an AE does not (Correct answer)
- AEs are always serious; ADRs may be non-serious
- There is no distinction — the terms are interchangeable
Correct answer: An ADR implies a causal relationship to the investigational product, while an AE does not
An AE is any unfavorable medical occurrence regardless of causality, whereas an ADR is an AE for which there is at least a reasonable possibility of a causal relationship to the study drug.
CCRA Certified Clinical Research Study 4
During site close-out, the CRA confirms that all essential documents are filed, IP is reconciled, and staff is debriefed.
Which document officially marks the end of a site's participation in a trial?