In accordance with the CFR, which of the following statements regarding the informed consent document...

The informed consent document (ICD) is a cornerstone of ethical clinical research, ensuring voluntary participation and protection of subject rights.

21 CFR 50.25(a):Requires the consent form to containall basic elements, including study purpose, risks, benefits, alternatives, confidentiality, compensation, and voluntariness.

ICH E6(R2) 4.8.10:Expands on these requirements, ensuring the ICD contains every mandated element without omission.

Thus, the correct statement is that the ICDmust include all applicable mandated basic elements(D). Options A and B confuse who signs—subjects or legally authorized representatives sign when applicable, not the IRB chair. Option C is incorrect because leaving out elements would violate compliance.

Correct answer:D.