Nurses setting up the different treatments for use and managing patients in the study reported greater Overall Satisfaction (3.93 vs. 3.32 out of 5, p<0.001) and Overall Ease of Care (4.26 vs. 3.82, p=0.018) with the Sufentanil NanoTab PCA System compared to IV PCA morphine. Likewise, patients in the study reported they had greater Overall Satisfaction (4.15 vs. 3.83 out of 5, p=0.003) and greater Overall Ease of Care (4.45 vs. 4.07, p<0.001) with the NanoTab System compared to IV PCA morphine."We are delighted to have the opportunity to present this important data at the prestigious PostGraduate Assembly meeting," commented Pamela Palmer MD, PhD, Chief Medical Officer and AcelRx co-founder. "These first data from our Phase 3 program for the Sufentanil NanoTab PCA System demonstrate superiority over IV PCA morphine for both primary and secondary endpoints. We look forward to the completion of our two remaining Phase 3 studies, which we expect to deliver in the first quarter of 2013," added Dr. Palmer. About Post-Operative PainAcute pain management in the hospital, in particular post-operative analgesia, remains a challenge for healthcare providers with up to 75% of patients reporting inadequate pain relief following surgery. Inadequate treatment of post-surgical pain can lead to decreased mobility, which increases the risks for serious medical complications, including deep vein thrombosis and partial lung collapse, potentially resulting in extended hospital stays. More than 30 million surgical procedures per year result in moderate to severe pain in the US and EU, with an additional 27 million procedures in countries with moderate to high per capita healthcare expenditures. The US, 5 main EU countries and Japan represented $5.1 billion of acute pain treatment product sales in 2008. Currently patients experiencing post-operative pain in the hospital may have IV PCA treatment, typically utilizing morphine or hydromorphone. However, there are deficiencies associated with the current use of IV PCA that can negatively impact patient safety, well-being and recovery. These include drug-related side effects associated with morphine or hydromorphone, complications associated with IV delivery, and medication delivery errors typically associated with misprogramming of the complex IV PCA pumps.