FDA Approves Durect Posimir for Surgical Pain

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FDA has approved a Durect NDA for Posimir (bupivacaine solution) for infiltration use in adults for administration into the subacromial space under direct arthroscopic visualization to produce post-surgical analgesia for up to 72 hours following arthroscopic subacromial decompression. Approval was based on clinical trial data in patients undergoing arthroscopic subacromial decompression surgery with an intact rotator cuff, according to the company. The primary outcome measures were mean pain intensity and total opioid rescue analgesia administered. Posimir showed a 20%, reduction in mean pain intensity on a 0-10 point pain scale, and a 67% reduction in intravenous morphine-equivalent rescue opioid use (12 mg usage in the placebo group compared with 4 mg in the Posimir group).

 

Last January, FDA’s Anesthetic and Analgesic Drug Products Advisory Committee delivered a split vote (6 to 6) on Posimir’s approval, with panel members recognizing effectiveness and safety issues in the company’s 10/2019 response to a 2014 FDA complete response letter. During the panel deliberation, some found the data too confusing to interpret, saying that it barely showed any effect over the placebo. Safety concerns, like increased surgical site bleeding and surgical site infections, were also raised by members and FDA. Some panel members who supported the drug’s approval were encouraged by its opioid-sparing properties, agreeing that reducing opioid use in the post-operative period is an important public health goal.

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