期刊
PAIN
卷 157, 期 7, 页码 1532-1540出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/j.pain.0000000000000558
关键词
Pregabalin; Anticonvulsant; Duloxetine; Antidepressant; Fibromyalgia; Analgesic combinations
资金
- Adynxx
- Taris Biomedical
- Astra Zeneca
- Pfizer
- Johnson Johnson
- Canadian Institutes of Health Research
- Physicians' Services Incorporated Foundation
- Queen's University
- John J. Bonica Training Fellowship from the International Association for the Study of Pain
- Queen's University Department of Anesthesiology and Perioperative Medicine
- Social Sciences and Humanities Research Council of Canada
- American Foundation for Suicide Prevention
- CIHR
- Ontario Brain Institute
- Ontario Mental Health Foundation
- Lundbeck
- Lilly
- Sunovion
- BMS
- Otsuka
- Paladin
- Merck
- Abbvie
- Bristol-Meyers-Squibb
- CIHR (Canadian Institutes of Health) [CIHR-MOP-106489]
- CIHR-Pfizer Rx&D Collaborative Research Investigator Program (CIHR Grant) [MSH-55041]
Fibromyalgia is a syndrome characterized by chronic widespread pain and associated with sleep disturbance, depression, fatigue, and cognitive dysfunction. Polypharmacy is commonly used, but supportive evidence is limited. Most fibromyalgia trials focus primarily on pain reduction with monotherapy. This trial compares a pregabalin-duloxetine combination to each monotherapy. Using a randomized, double-blind, 4-period crossover design, participants received maximally tolerated doses of placebo, pregabalin, duloxetine, and pregabalin-duloxetine combination-for 6 weeks. Primary outcome was daily pain (0-10); secondary outcomes included global pain relief, Fibromyalgia Impact Questionnaire, SF-36 survey, Medical Outcomes Study Sleep Scale, Beck Depression Inventory (BDI-II), adverse events, and other measures. Of 41 participants randomized, 39 completed >= 2 treatments. Daily pain during placebo, pregabalin, duloxetine, and combination was 5.1, 5.0, 4.1, and 3.7, respectively (P < 0.05 only for combination vs placebo, and pregabalin). Participants (%) reporting >= moderate global pain relief were 18%, 39%, 42%, and 68%, respectively (P < 0.05 for combination vs placebo, pregabalin, and duloxetine). Fibromyalgia Impact Questionnaire scores were 42.9, 37.4, 36.0, and 29.8, respectively (P < 0.05 for combination vs placebo, pregabalin, and duloxetine). SF-36 scores were 50.2, 55.7, 56.0, and 61.2, respectively (P < 0.05 for combination vs placebo, pregabalin, and duloxetine). Medical Outcomes Study Sleep Scale scores were 48.9, 35.2, 46.1, and 32.1, respectively (P < 0.05 only for combination vs placebo, and duloxetine). BDI-II scores were 11.9, 9.9, 10.7, and 8.9, respectively (P < 0.05 only for combination vs placebo). Moderate-severe drowsiness was more frequent during combination vs placebo. Combining pregabalin and duloxetine for fibromyalgia improves multiple clinical outcomes vs monotherapy. Continued research should compare this and other combinations to monotherapy for fibromyalgia.
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