More ubiquitous effects from non‐pharmacologic than from pharmacologic treatments for fibromyalgia syndrome: A meta‐analysis examining six core symptoms

Abstract

This study aimed to characterize and compare the efficacy profile on six fibromyalgia syndrome (FM) core symptoms associated with pharmacologic and non-pharmacologic treatments. We screened PubMed, Embase and the Cochrane Library for FM articles from 1990 to September 2012 to analyse randomized controlled trials comparing pharmacologic or nonpharmacologic treatments to placebo or sham. Papers including assessments of at least 2 of the 6 main FM symptom domains -pain, sleep disturbance, fatigue, affective symptoms (depression/anxiety), functional deficit and cognitive impairment -were selected for analysis. Studies exploring pharmacologic approaches (n = 21) were mainly dedicated to treating a small number of dimensions, mostly pain. They were of good quality but were not prospectively designed to simultaneously document efficacy for the management of multiple core FM symptom domains. Only amitriptyline demonstrated a significant effect on as many as three core FM symptoms, but it exhibited many adverse effects and was subject to early tachyphylaxis. Studies involving non-pharmacologic approaches (n = 64) were typically of poorer quality but were more often dedicated to multidimensional targets. Pool therapy demonstrated significant effects on five symptom domains, repetitive transcranial magnetic stimulation on four domains, balneotherapy on three domains and exercise, cognitive behaviour therapy and massage on two domains each. Differences between pharmacologic and non-pharmacologic approaches may be related to different modes of action, tolerability profiles and study designs. Very few drugs in well-designed clinical trials have demonstrated significant relief for multiple FM symptom domains, whereas non-pharmacologic treatments with weaker study designs have demonstrated multidimensional effects. Future therapeutic trials for FM should prospectively examine each of the core domains and should attempt to combine pharmacologic and non-pharmacologic therapies in well-designed clinical trials.

EULAR revised recommendations for the management of fibromyalgia

“…A single systematic review of two studies involving 74 patients reported an effect size on pain of 1.36 (0.01 to 1.34) 16. The improvement in functional deficit was not statistically significant (1.24; −0.36 to 2.84).…”

Fibromyalgia: A Critical and Comprehensive Review

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“…• • effect of current treatment for fibromyalgia on sleep A recent systematic review and meta-analysis examined the effect of current nonpharmacological and pharmacological treatment on different core symptoms of fibromyalgia [54]. Studies on nonpharmacological treatments often combined several treatments.…”