OPDP Plans Survey on DTC Quantitative Claims

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CDER’s Office of Prescription Drug Promotion (OPDP) is planning a survey to better understand quantitative claims in direct-to-consumer prescription drug advertising. The office notes that DTC advertising does include quantitative claims about a drug’s efficacy or risks and there is existing guidance, “Presenting Quantitative Efficacy and Risk Information in Direct-to-Consumer Promotional Labeling and Advertisements,” covering some of the general guidelines and how to present such information, but it is not “fully understood how consumers will interpret specific quantitative claims.”

FDA identifies quantitative efficacy and risk information as referring to information that numerically addresses the likelihood or magnitude of a drug’s effectiveness or risks. After performing a literature review, OPDP says “many questions remain on how best to communicate certain quantitative information about prescription drugs. For example, we do not have sufficient information about how consumers interpret different claims describing medians (e.g., ‘People treated with Drug X lived for a median of 8 months’ alone or in combination with a definition such as ‘In people receiving Drug X, this means that about half lived more than 8 months and about half lived less than 8 months’ or ‘A median is the middle number in a group of numbers ordered from smallest to largest’).”

OPDP’s study aims to survey U.S. adults about their interpretation of specific quantitative claims, according to an agency notice. The study plan is currently open for comments until 6/24.

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