Heron Receives FDA Extension of NDA Review Period for Postoperative Pain Treatment

Heron Therapeutics announced the U.S. Food and Drug Administration (FDA) has extended the review period for the New Drug Application (NDA) for HTX-011 by up to three months. The new PDUFA goal date is June 26, 2020.

A Complete Response Letter (CRL) was received from the FDA regarding the NDA for HTX-011 on April 30, 2019 relating to chemistry, manufacturing and controls and non-clinical information. Heron has reported the contract manufacturing site used to manufacture HTX-011 has been reinspected by the FDA with no Form 483 observations issued and with a recommendation by the FDA inspector for approval of the site. Heron has not been informed of any other manufacturing concerns. There were no clinical efficacy or safety issues in the CRL.

"While the three-month extension of the review clock for the HTX-011 NDA resubmission is very disappointing, the FDA indicated that they will try to complete their work in less time," said Barry Quart, Pharm.D., President and Chief Executive Officer of Heron. "We are gratified with the positive outcome of the FDA reinspection of the HTX-011 contract manufacturing facility, which was an important factor in the CRL."

HTX-011, an investigational agent, is a dual-acting, fixed-dose combination of the local anesthetic bupivacaine with a low dose of the nonsteroidal anti-inflammatory drug meloxicam. It is the first and only extended-release local anesthetic to demonstrate in Phase 3 studies significantly reduced pain and opioid use through 72 hours compared to bupivacaine solution, the current standard-of-care local anesthetic for postoperative pain control. HTX-011 was granted Fast Track designation from the FDA in the fourth quarter of 2017 and Breakthrough Therapy designation in the second quarter of 2018. Heron submitted an NDA to the FDA for HTX-011 in October of 2018 and received Priority Review designation in December of 2018. A Complete Response Letter (CRL) was received from the FDA regarding the NDA for HTX-011 on April 30, 2019 relating to chemistry, manufacturing and controls and non-clinical information. No issues related to clinical efficacy or safety were noted. Heron resubmitted an NDA to the FDA for HTX-011 in September 2019. The PDUFA goal date is June 26, 2020. A Marketing Authorisation Application for HTX-011 was validated by the European Medicines Agency in March 2019 for review under the Centralised Procedure. Heron's New Drug Submission (NDS) for HTX-011 for the management of postoperative pain was granted Priority Review status by Health Canada in October 2019 and accepted by Health Canada in November 2019.

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