Mixed Deck — All CPI Topics Flashcards

Which action by a CPI constitutes research fraud under federal regulations?

Answer: Intentionally falsifying source documents to match case report forms

Falsifying source documents is research fraud, violating FDA regulations, GCP, and professional ethical standards.

An investigational drug shows non-linear (saturable) pharmacokinetics at therapeutic doses. What is the most important clinical implication for the trial?

Answer: Small dose increases may cause disproportionately large increases in drug exposure

Saturable (Michaelis-Menten) kinetics cause non-proportional AUC increases with dose escalation, meaning small dose increments can lead to marked toxicity in dose-finding studies.

How long must drug accountability records typically be retained after study completion under FDA regulations?

Answer: 2 years after the study is approved or discontinued, or 2 years after the investigational drug is marketed

Under 21 CFR 312.62, investigators must retain records for 2 years after a marketing application is approved or, if no application is filed, 2 years after the investigation is discontinued and FDA is notified.

In the context of CPI responsibilities, what does the term 'sponsor-investigator' mean?

Answer: An individual who both initiates and conducts a clinical investigation

A sponsor-investigator is an individual who both initiates and conducts a clinical investigation and assumes all sponsor and investigator responsibilities.

When a protocol specifies 'washout period' requirements before study drug initiation, the primary purpose is to:

Answer: Eliminate prior treatment effects that could confound study results or cause interactions

Washout periods eliminate residual effects of prior treatments to reduce confounding and prevent drug-drug interactions.

What is a data management plan in clinical research?

Answer: A plan for data collection, storage, and analysis

A data management plan (DMP) is essential in clinical research for systematically organizing and handling all data generated during a study. It outlines procedures for data collection, entry, storage, quality control, security, and eventual analysis, ensuring data integrity, accessibility, and compliance with regulatory requirements.

Which method is used to account for imbalanced confounders between treatment groups in an observational study?

Answer: Propensity score analysis

Propensity score methods (matching, weighting, or stratification) balance measured confounders between groups in observational studies to reduce confounding.

What is a clinical research protocol?

Answer: A plan that outlines the study's objectives and procedures

A clinical research protocol is a detailed document that serves as the blueprint for a clinical study. It meticulously describes the study's rationale, objectives, design, methodology, statistical considerations, and organizational aspects, ensuring consistency, safety, and scientific integrity throughout the research.

Which of the following actions by a clinical investigator constitutes scientific misconduct?

Answer: Fabricating data in the case report form to fill in missed assessments

Fabricating or falsifying data in any research record is scientific misconduct and a serious regulatory violation subject to criminal penalties.

Under 21 CFR 50.25, which of the following is classified as an ADDITIONAL element of informed consent (rather than a basic required element)?

Answer: Disclosure that a particular treatment or procedure may involve currently unforeseeable risks to a participant or embryo if pregnant

The disclosure of unforeseeable risks to participants or embryos is listed under 21 CFR 50.25(b) as an additional element, not a basic required one.

A physician investigator notices that laboratory values collected at one site are consistently 10% higher than other sites. This is an example of:

Answer: Systematic bias

Consistent directional differences across a site indicate systematic bias, often due to equipment calibration or procedural differences.

Under what circumstance may an investigator implement a protocol change without prior IRB approval?

Answer: When the change is necessary to eliminate an immediate hazard to a research subject

An investigator may implement a protocol change without prior IRB approval only when necessary to eliminate an immediate hazard to subjects, followed by prompt IRB notification.

In a clinical trial, what is the primary purpose of using a double-blind design when collecting outcome data?

Answer: To eliminate bias from both participant and assessor expectations

Double-blind design prevents both participants and outcome assessors from knowing treatment assignment, minimizing performance and detection bias.

Which document PRIMARILY governs the responsibilities of a clinical investigator regarding participant safety at a US site?

Answer: FDA Form 1572 and the investigational plan/protocol

FDA Form 1572 and the protocol define the investigator's commitments to conduct the study according to regulations and ensure participant safety.

Which of the following best describes 'blinded drug kits' used in a double-blind trial?

Answer: Packages where both active drug and placebo are made identical in appearance, smell, and labeling to conceal treatment assignment

Blinded drug kits are manufactured so that active drug and placebo are indistinguishable to both the subject and site staff, preserving the blind and preventing bias in outcome assessment.

Which of the following scenarios represents a serious breach of investigational product accountability that must be reported to the sponsor immediately?

Answer: Investigational product is discovered missing from site inventory with no documentation explaining the loss

Unexplained missing investigational product represents a potential diversion, safety hazard, or fraud that requires immediate sponsor notification and investigation to protect trial integrity and subject safety.

What are record retention policies in CPI practice?

Answer: Rules defining how long records must be kept and when destroyed

Retention policies establish consistent guidelines based on legal requirements and business needs.

When a source document error is discovered in a clinical trial, the correct procedure is to:

Answer: Cross out the error with a single line, initial, date, and note the reason

ICH GCP requires that corrections preserve the original entry by crossing it out with a single line, then initialing, dating, and providing a reason for the correction.

Which of the following best describes the Hawthorne effect in clinical research?

Answer: Participants improve outcomes simply because they know they are being observed

The Hawthorne effect refers to the tendency for study participants to modify their behavior merely because they are being observed, potentially inflating outcomes.

Under FDA regulations, how long must a clinical investigator retain signed informed consent documents?

Answer: 2 years after the study's marketing application or IND discontinuation

Per 21 CFR 312.62, investigators must retain consent documents for at least 2 years following the date of marketing application approval or IND discontinuation.