A Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate the Efficacy and Safety of the Sufentanil NanoTab PCA System/15 mcg (Zalviso™) for the Treatment of Post-Operative Pain in Patients After Open Abdominal Surgery

A Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate the Efficacy and Safety of the Sufentanil NanoTab PCA System/15 mcg (Zalviso™) for the Treatment of Post-Operative Pain in Patients After Open Abdominal Surgery

The purpose of this study is to compare the efficacy and safety of the Sufentanil NanoTab PCA System/15 mcg to the Placebo Sufentanil NanoTab PCA System for the management of acute moderate to severe post-operative pain after open abdominal surgery.

Inclusion Criteria:

• Male or female patients who are 18 years or older
• Patients who are scheduled to undergo an open abdominal surgery (including laparoscopic-assisted) under general anesthesia or spinal anesthesia that does not include intrathecal opioids during the operation.
• Post-surgical patients who have been admitted to the PACU and are expected to remain hospitalized and to have acute post-operative pain requiring parenteral opioids for at least 48 hours after surgery.

Exclusion Criteria:

• Patients who have taken an opioid for more than 30 consecutive days, at a daily dose of more than 15 mg of morphine (or equivalent), within the past 3 months prior to surgery (e.g. more than 3 doses per day of Vicodin®, Norco®, Lortab® with 5 mg hydrocodone per tablet).
• Patients with an allergy or hypersensitivity to opioids.
• Female patients who are pregnant or breast-feeding