期刊
JOURNAL OF PAIN
卷 11, 期 12, 页码 1282-1290出版社
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.jpain.2010.03.002
关键词
Duloxetine; chronic low back pain; efficacy; safety
资金
- Eli Lilly and Company Indianapolis Indiana
This randomized, double-blind, placebo-controlled study assessed efficacy and safety of duloxetine in patients with chronic low back pain (CLBP) Adults (n = 401) with a nonneuropathic CLBP and average pain intensity of >= 4 on an 11-point numerical scale (Brief Pain Inventory [BPI]) were treated with either duloxetine 60 mg once daily or placebo for 12 weeks The primary measure was BPI average pain Secondary endpoints included Patient's Global Impressions of Improvement (PGI-I), Roland Morris Disability Questionnaire (RMDQ-24), BPI-Severity (BPI-S), BPI-Interference (BPI-I), and response rates (either >= 30% or >= 50% BPI average pain reduction at endpoint) Health outcomes included Short Form-36, European Quality of Life-5 Dimensions, and the Work Productivity and Activity Impairment questionnaire Safety and tolerability were assessed Compared with placebo-treated patients, duloxetine-treated patients reported a significantly greater reduction in BPI average pain (P 001) Similarly, duloxetine-treated patients reported significantly greater improvements in PGI-I, BPI-S, BPI-I, 50% response rates, and some health outcomes The RMDQ and 30% response rate showed numerical improvements with duloxetine treatment Significantly more patients in the duloxetine group (15 2%) than patients in the placebo group (5 4%) discontinued because of adverse events (P = 002) Nausea and dry mouth were the most common treatment-emergent adverse events with rates significantly higher in duloxetine-treated patients Perspective This study provides clinical evidence of the efficacy and safety of duloxetine at a fixed dose of 60 mg once daily in the treatment of chronic low back pain (CLBP) As of December 2009, duloxetine has not received regulatory approval for the treatment of CLBP (c) 2010 by the American Pain Society
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