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Avenue Therapeutics Receives Complete Response Letter From FDA For IV Tramadol; CRL States That ‘the delayed and unpredictable onset of analgesia with IV tramadol does not support its benefit as a monotherapy to treat patients in acute pain’

Avenue Therapeutics, Inc. (NASDAQ:ATXI) ("Avenue"), a company focused on the development of intravenous ("IV") tramadol for the U.S. market, today announced that it has received a second Complete

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