PMID- 20007734 OWN - NLM STAT- MEDLINE DCOM- 20100208 LR - 20141120 IS - 1526-7598 (Electronic) IS - 0003-2999 (Linking) VI - 110 IP - 2 DP - 2010 Feb 1 TI - The effects of nabilone on sleep in fibromyalgia: results of a randomized controlled trial. PG - 604-10 LID - 10.1213/ANE.0b013e3181c76f70 [doi] AB - BACKGROUND: Sleep disorders affect many patients with chronic pain conditions. Cannabis has been reported by several patient populations to help sleep. We evaluated the safety and efficacy of nabilone, a synthetic cannabinoid, on sleep disturbance in fibromyalgia (FM), a disease characterized by widespread chronic pain and insomnia. METHODS: We conducted a randomized, double-blind, active-control, equivalency crossover trial to compare nabilone (0.5-1.0 mg before bedtime) to amitriptyline (10-20 mg before bedtime) in patients with FM with chronic insomnia. Subjects received each drug for 2 wk with a 2-wk washout period. The primary outcome was sleep quality, measured by the Insomnia Severity Index and the Leeds Sleep Evaluation Questionnaire. Secondary outcomes included pain, mood, quality of life, and adverse events (AEs). RESULTS: Thirty-one subjects were enrolled and 29 completed the trial (26 women, mean age 49.5 yr). Although sleep was improved by both amitriptyline and nabilone, nabilone was superior to amitriptyline (Insomnia Severity Index difference = 3.2; 95% confidence interval = 1.2-5.3). Nabilone was marginally better on the restfulness (Leeds Sleep Evaluation Questionnaire difference = 0.5 [0.0-1.0]) but not on wakefulness (difference = 0.3 [-0.2 to 0.8]). No effects on pain, mood, or quality of life were observed. AEs were mostly mild to moderate and were more frequent with nabilone. The most common AEs for nabilone were dizziness, nausea, and dry mouth. CONCLUSIONS: Nabilone is effective in improving sleep in patients with FM and is well tolerated. Low-dose nabilone given once daily at bedtime may be considered as an alternative to amitriptyline. Longer trials are needed to determine the duration of effect and to characterize long-term safety. FAU - Ware, Mark A AU - Ware MA AD - Pain Clinic, McGill University Health Centre, Montreal, Quebec, Canada. mark.ware@muhc.mcgill.c FAU - Fitzcharles, Mary-Ann AU - Fitzcharles MA FAU - Joseph, Lawrence AU - Joseph L FAU - Shir, Yoram AU - Shir Y LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20091210 PL - United States TA - Anesth Analg JT - Anesthesia and analgesia JID - 1310650 RN - 0 (Anti-Anxiety Agents) RN - 0 (Antidepressive Agents) RN - 1806D8D52K (Amitriptyline) RN - 2N4O9L084N (nabilone) RN - 7J8897W37S (Dronabinol) SB - IM MH - Adult MH - Aged MH - Amitriptyline/therapeutic use MH - Anti-Anxiety Agents/adverse effects/*therapeutic use MH - Antidepressive Agents MH - Cross-Over Studies MH - Double-Blind Method MH - Dronabinol/adverse effects/*analogs & derivatives/therapeutic use MH - Female MH - Fibromyalgia/*complications MH - Humans MH - Male MH - Middle Aged MH - Pain Measurement MH - Patient Satisfaction MH - Sleep MH - Sleep Initiation and Maintenance Disorders/*drug therapy/etiology EDAT- 2009/12/17 06:00 MHDA- 2010/02/09 06:00 CRDT- 2009/12/17 06:00 PHST- 2009/12/17 06:00 [entrez] PHST- 2009/12/17 06:00 [pubmed] PHST- 2010/02/09 06:00 [medline] AID - ANE.0b013e3181c76f70 [pii] AID - 10.1213/ANE.0b013e3181c76f70 [doi] PST - ppublish SO - Anesth Analg. 2010 Feb 1;110(2):604-10. doi: 10.1213/ANE.0b013e3181c76f70. Epub 2009 Dec 10.