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Recro Pharma Announces Update on On-Going Phase II Clinical Trial of Dex-IN for Treatment of Acute Pain on Day 1 Following Surgery

MALVERN, Pa., April 9, 2015 (GLOBE NEWSWIRE) -- Recro Pharma, Inc. (Nasdaq:REPH), a clinical stage specialty pharmaceutical company developing non-opioid therapeutics for the treatment of acute post-operative pain today announced that it had completed the prespecified interim analysis conducted on the Company's Phase II, double-blind REC-14-013 trial of Dex-IN in patients who initiate dosing of study medication on Post Op Day 1 following bunionectomy surgery. The purpose of the interim analysis was to allow for a sample size adjustment, if necessary, to maintain the ability to detect a difference in treatment effects between Dex-IN and placebo. The trial was expected to enroll approximately 200-250 patients. As a result of the interim analysis, the total enrollment for the trial was adjusted to approximately 170 patients.

"The completion of the interim analysis is an important milestone for Recro Pharma and we are encouraged by this outcome," said Gerri Henwood, Recro Pharma's President and Chief Executive Officer. "We eagerly anticipate the completion of this trial and remain on track to report top-line results by mid-year 2015. There remains a significant unmet need for non-opioid analgesics for acute post operative pain, a need we continue to believe may be addressed by Dex-IN."

The Phase II trial is a randomized, multicenter, double-blind, placebo-controlled study to evaluate the efficacy and safety of Recro Pharma's proprietary intranasal formulation of dexmedetomidine, Dex-IN, in adult patients undergoing bunionectomy surgery, initiating dosing of study medication on Post Op Day 1. Patients who meet the eligibility criteria are randomized to either a 50µg dose of Dex-IN or a placebo intranasal dose given every 6 hours. Following the beginning of treatment, patients remain under observation for 48 hours at study centers. Patients are followed for 7 days after the initial dose of study medication. There is an oral opioid rescue treatment available to patients in either treatment group, if required, to provide adequate pain relief.

The primary efficacy endpoint of the trial is the summed pain intensity difference over 48 hours, SPID48, starting on Post Op Day 1. Additional efficacy endpoints include use of opioid rescue medication, other pain parameters and opioid related side effects, as well as Patient Global Assessment (PGA) of pain control.

Bunionectomy surgery generally involves an incision in the top or side of the big toe joint and the removal or realignment of soft tissue and bone. This is done to relieve pain and restore normal alignment to the joint. Bunionectomy surgery typically results in intense post-operative pain. In the past, drugs that have demonstrated analgesic effectiveness following bunionectomy surgery have frequently translated that analgesic success into other post-operative procedures that result in moderate to severe, acute pain.

About Recro Pharma, Inc.

Recro Pharma is a clinical stage specialty pharmaceutical company developing non-opioid therapeutics for the treatment of acute post operative pain. Recro Pharma's lead product candidate, Dex-IN, is a proprietary intranasal formulation of dexmedetomidine and has completed multiple clinical trials in which Dex-IN was well tolerated. As Recro Pharma's product candidates are not in the opioid class of drugs, the Company believes its candidates would avoid many of the side effects associated with commonly prescribed opioid therapeutics, such as addiction, constipation and respiratory distress while maintaining analgesic effect. If approved, Dex-IN would be the first and only approved acute pain drug in its class.

Cautionary Statement Regarding Forward Looking Statements

This press release contains forward-looking statements that involve risks and uncertainties. Such forward-looking statements reflect Recro Pharma's expectations about its future operating results, performance and opportunities that involve substantial risks and uncertainties. When used herein, the words "anticipate," "believe," "estimate," "upcoming," "plan," "target", "intend" and "expect" and similar expressions, as they relate to Recro Pharma or its management, are intended to identify such forward-looking statements. These forward-looking statements are based on information available to Recro Pharma as of the date of this press release and are subject to a number of risks, uncertainties, and other factors that could cause Recro Pharma's actual results, performance, prospects, and opportunities to differ materially from those expressed in, or implied by, these forward-looking statements. Recro Pharma assumes no obligation to update any such forward-looking statements. Factors that could cause Recro Pharma's actual results to materially differ from those expressed in the forward-looking statements set forth in this press release include, without limitation: the results and timing of the clinical trials of Dex-IN and any future clinical and preclinical studies; the ability to obtain and maintain regulatory approval of product candidates, and the labeling under any such approval; regulatory developments in the United States and foreign countries; the Company's ability to raise future financing for continued development; the performance of third-party suppliers and manufacturers; the Company's ability to obtain, maintain and successfully enforce adequate patent and other intellectual property protection; the successful commercialization of the Company's product candidates; the successful implementation of the Company's strategy; the Company's ability to close and integrate the pending acquisition of assets from Alkermes; and the Company's ability to meet required debt payments and operate under increased leverage and associated lending covenants in connection with the pending acquisition. In addition, the forward-looking statements in this press release should be considered together with the risks and uncertainties that may affect Recro Pharma's business and future results included in Recro Pharma's filings with the Securities and Exchange Commission at www.sec.gov. Recro Pharma assumes no obligation to update any such forward looking statements.

CONTACT: Recro Pharma, Inc. Charles T. Garner Chief Financial Officer (484) 395-2425 Media and Investors: Argot Partners Susan Kim (212) 600-1902 susan@argotpartners.comSource:Recro Pharma