Durect Files Response to Pain Drug Rejection
Durect has submitted a detailed reply to an FDA 2014 complete response letter for Posimir (bupivacaine extended-release solution), a post-operative pain relief depot product that uses the company’s Saber technology. The product is designed to be administered directly into a surgical site to deliver bupivacaine for up to three days after surgery.
Durect says it retained the advisory services of former CDER Division of Analgesic, Anti-inflammatory and Ophthalmologic Drug Products director Lee S. Simon to evaluate the adequacy of the existing Posimir package to address issues raised in FDA’s letter. The company expects a six-month FDA review.
The resubmission includes data from two previously completed adequate and well-controlled clinical trials, conducted in patients undergoing inguinal hernia repair and subacromial decompression (shoulder) surgeries respectively, Durect says. In these, Posimir demonstrated a significant decrease in pain and opioids consumed over the 0-72 hour period following surgery as compared to placebo, it says.
Additionally, the resubmission includes data from 16 clinical trials involving over 1,400 patients, over 850 of whom received Posimir, with the remainder in control groups. Durect further says that with safety data from the PERSIST trial included, there are now sufficient data to address FDA’s issues.