AcelRx commences dosing in ARX-04 sufentanil NanoTab Phase 2 study for acute and breakthrough pain

AcelRx Pharmaceuticals, Inc. (Nasdaq: ACRX), a specialty pharmaceutical company focused on the development and commercialization of innovative therapies for the treatment of acute and breakthrough pain, today announced that it has dosed the first subjects in a Phase 2, placebo-controlled, dose-finding study of its ARX-04 sufentanil NanoTab product candidate.  This study will enroll approximately 100 patients following bunionectomy surgery, randomized into one of three groups; 20 mcg sufentanil NanoTab, 30 mcg sufentanil NanoTab or placebo, administered by healthcare personnel, as needed every hour.  The study will evaluate the ability of sufentanil NanoTabs to manage moderate-to-severe acute pain over the first 12 hours following bunionectomy, and correlate the pain response with sufentanil pharmacokinetics.  AcelRx is conducting the study with funding provided by a grant from the U.S. Army Medical Research and Materiel Command, or USAMRMC. 

"ARX-04, a single-dose applicator containing a single sufentanil NanoTab, represents a promising new application of our proprietary NanoTab^® technology for sublingual delivery of sufentanil by healthcare personnel, and has the potential to safely provide rapid onset of analgesia for patients in acute pain, both on the battlefield and in civilian settings of trauma or injury," stated Richard King, AcelRx's president and CEO.  

In May 2011, USAMRMC awarded AcelRx a $5.6 million grant to support the development of ARX-04, a proprietary non-invasive, fast-onset sublingual product candidate for the treatment of moderate-to-severe acute pain.  In accordance with the development plans of the grant, AcelRx filed the IND with the FDA during October 2011 and on November 1, 2012 initiated the Phase 2 study following protocol approval by the USAMRMC.