Acelrx Pharmaceuticals Inc. CEO Vincent Angotti said he was “hesitant to put a timeline on this until we get further clarification from the FDA” regarding what’s required to satisfy the agency’s issues raised in a complete response letter (CRL) related to its NDA for 30-mg sublingual tablet Dsuvia (sufentanil), an opioid therapy that’s intended to reduce moderate to severe acute pain as well as dosing errors that can happen with intravenous administration.