An Investigator Is Conducting a Randomized, Double-Blind, Placebo-Controlled Clinical Trial

question 43

Multiple Choice

An investigator is conducting a randomized, double-blind, placebo-controlled clinical trial of a new drug for the treatment of peripheral neuropathy in adults with multiple myeloma (MM) .  One hundred fifty patients with MM are enrolled in the trial and randomized to receive either the new drug (n = 75) or placebo (n = 75) .  Trial protocol requires that patients in both groups take 1 pill per day and keep a pain diary.  After 3 months of treatment, each patient is interviewed, and the pain diaries are reviewed; 9 patients taking the new drug and 3 patients taking placebo did not take the pills as instructed.  The investigator decides to conduct an intention-to-treat analysis of the study data.  Which of the following best describes how the data pertaining to all patients who did not adhere to protocol should be treated?

• A)Conduct separate analyses of the 12 nonadherent patients and the 138 adherent patients
• B)Exclude all 12 nonadherent patients from analysis
• C)Exclude the 3 nonadherent patients in the group taking placebo from analysis
• D)Exclude the 9 nonadherent patients in the group taking the new drug from analysis
• E)Keep all 12 nonadherent patients in their respective groups for analysis

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Definitions:

Income Summary

An account in the closing process that summarizes revenues and expenses for a period, transferring the net result to owner's equity.

Retained Earnings

The portion of a company's profits not distributed as dividends but reinvested in the business or kept as reserve.

Current Ratio

A liquidity ratio that measures a company's ability to pay short-term obligations or those due within one year, calculated by dividing current assets by current liabilities.

Permanent Accounts

Balance sheet accounts that carry their ending balances over into the next accounting period, such as assets, liabilities, and equity accounts.