AcelRx Pharmaceuticals Receives Two Additional U.S. Patents for Small-Volume Oral Transmucosal Dosage Forms

AcelRx Pharmaceuticals, Inc. 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 the U.S. Patent and Trademark Office (USPTO) has recently issued AcelRx Patent Number 8,226,978 entitled "Small Volume Oral Transmucosal Dosage Forms Containing Sufentanil for Treatment of Pain," and Patent Number 8,231,900 entitled "Small-Volume Oral Transmucosal Dosage Forms." The '978 patent claims a dosage form for oral transmucosal administration of sufentanil and the '900 patent claims a small-volume solid tablet containing a single dose of sufentanil for oral mucosal administration to a subject. These newly issued patents will provide intellectual property protection for sufentanil NanoTab based products until at least January 5, 2027. AcelRx currently has more than 70 pending patent applications worldwide and continues to file additional new patent applications to further strengthen its market exclusivity.