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More ubiquitous effects from non‐pharmacologic than from pharmacologic treatments for fibromyalgia syndrome: A meta‐analysis examining six core symptoms
Author(s) -
Perrot S.,
Russell I.J.
Publication year - 2014
Publication title -
european journal of pain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.305
H-Index - 109
eISSN - 1532-2149
pISSN - 1090-3801
DOI - 10.1002/ejp.564
Subject(s) - tolerability , medicine , fibromyalgia , placebo , anxiety , adverse effect , clinical trial , randomized controlled trial , tachyphylaxis , physical therapy , psychiatry , alternative medicine , pathology
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 P ub M ed, E mbase and the C ochrane L ibrary for FM articles from 1990 to S eptember 2012 to analyse randomized controlled trials comparing pharmacologic or non‐pharmacologic 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.