A Study Comparing Duloxetine and Placebo in the Treatment of Fibromyalgia

Summary

The purpose of this study is to confirm the efficacy and safety of duloxetine 60-120 mg once daily in comparison to placebo on symptom improvement in patients meeting criteria for fibromyalgia aged 18 and older. Patients will be randomized to duloxetine or placebo, however, all patients will receive duloxetine at some point in the study.

Timeline

Start

2008-06

Primary completion

2009-04

Completion

2009-07

Outcome

Met primary endpoint

paper At Week 12, duloxetine-treated patients reported significantly greater global improvement with mean PGI-I scores of 2.8 compared to 3.4 in the placebo group (p < 0.001). PMID 20843911 ↗

Publications

• Mohs R, Mease P, Arnold LM, Wang F, Ahl J, Gaynor PJ, Wohlreich MM. The effect of duloxetine treatment on cognition in patients with fibromyalgia. Psychosom Med. 2012 Jul-Aug;74(6):628-34. doi: 10.1097/PSY.0b013e31825b9855. Epub 2012 Jun 28.
• Arnold LM, Wang F, Ahl J, Gaynor PJ, Wohlreich MM. Improvement in multiple dimensions of fatigue in patients with fibromyalgia treated with duloxetine: secondary analysis of a randomized, placebo-controlled trial. Arthritis Res Ther. 2011 Jun 13;13(3):R86. doi: 10.1186/ar3359.
• Arnold LM, Clauw D, Wang F, Ahl J, Gaynor PJ, Wohlreich MM. Flexible dosed duloxetine in the treatment of fibromyalgia: a randomized, double-blind, placebo-controlled trial. J Rheumatol. 2010 Dec;37(12):2578-86. doi: 10.3899/jrheum.100365. Epub 2010 Sep 15.

Drugs

Indications