CCDM Clinical Trial Design 5

Question 1

In a registry-based randomized clinical trial (RRCT), what is the primary source of outcome data?

Accepted Answer

Existing patient registry databases integrated with trial randomization

Answer

RRCTs leverage existing national or disease registries to collect outcome data, reducing costs and enabling pragmatic, large-scale evidence generation.

Question 2

A 'platform trial' differs from a standard multi-arm trial in that it:

Accepted Answer

Allows new treatment arms to be added or dropped over time under a master protocol

Answer

Platform trials operate under a single master protocol and infrastructure, allowing flexible addition or removal of treatment arms based on pre-specified decision rules.

Question 3

Which of the following endpoints would be classified as a 'composite endpoint'?

Accepted Answer

Time to first occurrence of myocardial infarction, stroke, or cardiovascular death

Answer

Composite endpoints combine multiple individual events into a single endpoint, which increases event rates and reduces required sample size, but can complicate interpretation.

Question 4

In clinical trial design, 'multiplicity' refers to:

Accepted Answer

The inflation of Type I error risk when multiple statistical tests or endpoints are evaluated

Answer

Testing multiple hypotheses increases the chance of obtaining at least one false-positive result by chance, requiring pre-specified adjustment strategies like Bonferroni correction.

Question 5

Which ICH guideline specifically provides guidance on statistical principles for clinical trials?

Accepted Answer

ICH E9 (R1)

Answer

ICH E9 (R1) provides guidance on statistical principles for clinical trials, and its addendum (R1) introduced the estimand framework for defining trial objectives precisely.

(CCDM) Certified Clinical Data Manager Practice Test

(CCDM) Certified Clinical Data Manager Practice Test

CCDM Clinical Trial Design 5