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Pregabalin for the Treatment of Abdominal Adhesion Pain: A Randomized, Double-Blind, Placebo-Controlled Trial.

Author(s): Silverman A, Samuels Q, Gikas H, Nawras A

Affiliation(s): From the 1Division of Gastroenterology, Henry Ford Hospital, Detroit, MI; and the 2Division of Gastroenterology, University of Toledo, Toledo, OH.

Publication date & source: 2011-10-17, Am J Ther., [Epub ahead of print]

Chronic pain related to postoperative abdominal adhesions is a common problem with no standard analgesic regimen currently established. In a double-blind, placebo-controlled trial, we examined the effects of pregabalin on pain modulation in patients with prior abdominal surgery and documented adhesion. The primary outcome measure was pain relief documented by a 2-point change on the Likert pain scale with a secondary pain measure of sleep interruption. A total of 18 women were randomized to receive either the drug (n = 11) or placebo (n = 7). Thirteen patients (eight pregabalin, five placebo) completed the blinded phase and 10 patients (seven pregabalin, three placebo) completed the open-label phase. Statistical analysis was performed in two settings: 1) Week 0 (as the baseline) through the end of Week 7 of the blinded fixed-dose phase; and 2) Week 7 (as the baseline) along With weeks 8 through 11 of the open-label phase. The pain score result from the blinded phase setting indicated that the amount of decrease was significantly greater in the drug group (P = 0.024), whereas the pain score result from the open-label setting indicated that the amount of decrease was significantly greater in the placebo group (P = 0.043). Only the sleep score result in the open-label setting was significantly greater in the placebo group (P = 0.024). We conclude that pregabalin significantly reduced patient-documented pain scores compared with placebo in our small cohort of patients with abdominal adhesion pain.

Page last updated: 2011-12-09

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