FDA’s Revocation of the Hydroxychloroquine and Chloroquine EUA May Test the Limits of PREP Act Immunity

On June 15, 2020, the U.S. Food & Drug Administration (FDA) revoked the Emergency Use Authorization (EUA) that permitted emergency distribution of chloroquine phosphate (CQ) and hydroxychloroquine sulfate (HCQ) from the Strategic National Stockpile. (https://www.fda.gov/media/138945/download) The FDA concluded, based on clinical trial data and the continuing failure of treatment guidelines to support use of CQ or HCQ to treat patients with COVID-19, that “it is no longer reasonable to believe that oral formulations of HCQ and CQ may be effective in treating COVID-19, nor is it reasonable to believe that the known and potential benefits of these products outweigh their known and potential risks.”

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FDA Warns Against Sales Representative’s “False and Misleading” Oral Statements Regarding Prescription Medicine

The U.S. Food and Drug Administration’s Office of Prescription Drug Promotion (OPDP) sent an untitled letter to Eisai Inc. on October 11, 2018, based on a sales representative’s “false and misleading” oral statements during a lunch presentation about the safety of the antiepileptic medication Fycompa®, downplaying warnings, and engaging in off-label promotion of the product.

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