Fuggle, N, Curtis, E, Shaw, S, Spooner, L, Bruyère, O, Ntani, G, Parsons, C, Conaghan, PG, Corp, N, Honvo, G, Uebelhart, D, Baird, J, Dennison, E, Reginster, J-Y and Cooper, C (2019) Safety of Opioids in Osteoarthritis: Outcomes of a Systematic Review and Meta-Analysis. Drugs and Aging, 36 (Suppl). 129 - 143. ISSN 1179-1969

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OBJECTIVE: We aimed to assess the safety of opioids in the management of osteoarthritis (OA) in a systematic review and meta-analysis of randomized, placebo-controlled trials. METHODS: A comprehensive literature search was undertaken in the MEDLINE, Cochrane Central Register of Controlled Trials (Ovid CENTRAL), and Scopus electronic databases. Randomized, double-blind, placebo-controlled, parallel-group trials that assessed adverse events (AEs) with opioids in patients with OA were eligible for inclusion. Two authors appraised titles, abstracts and full-text papers for suitability and then assessed the studies for random sequence generation, allocation concealment, blinding of participants and personnel, blinding of outcome assessment, incomplete outcome data and selective outcomes reporting. The primary outcomes of interest were gastrointestinal (GI) disorders, cardiac disorders, vascular disorders, nervous system disorders, skin and subcutaneous tissue disorders, renal and urinary disorders, respiratory, thoracic and mediastinal disorders, as well as overall severe and serious AEs and drug-related AEs. Secondary outcomes were withdrawals due to AEs (i.e. the number of participants who stopped the treatment due to an AE) and total number of AEs (i.e. the number of patients who experienced any AE at least once). RESULTS: Database searches identified 2189 records, from which, after exclusions, 17 papers were included in the meta-analysis. More disorders of the lower GI tract (constipation, fecaloma) were reported with both immediate-release (IR) and extended-release (ER) formulations of opioids versus placebo: IR opioids (relative risk [RR] 5.20, 95% confidence interval [CI] 3.42-7.89); ER opioids (RR 4.22, 95% CI 3.44-5.17). The risk of upper GI AEs increased fourfold with ER opioids compared with placebo (RR 4.03, 95% CI 0.87-18.62), and the risk of nausea, vomiting or loss of appetite increased four- to fivefold with both formulations: IR opioids (RR 3.39, 95% CI 2.22-5.18); ER opioids (RR 4.03, 95% CI 3.37-4.83). An increased risk of dermatologic AEs (rash and pruritis; IR opioids: RR 3.60, 95% CI 1.74-7.43; ER opioids: RR 7.87, 95% CI 5.20-11.89) and central nervous system disorders (dizziness, headache, fatigue, somnolence, insomnia; IR opioids: RR 2.76, 95% CI 1.90-4.02; ER opioids: RR 2.76, 95% CI 2.19-3.47) was found with all opioid formulations versus placebo. CONCLUSIONS: Our results confirm that there are considerable safety and tolerability issues surrounding the use of opioids in OA, and support the recommendation of international and national guidelines to use opioids in OA after other analgesic options, and for short time periods.

Item Type: Article
Additional Information: © The Author(s) 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Uncontrolled Keywords: osteoarthritis
Subjects: R Medicine > R Medicine (General)
R Medicine > RA Public aspects of medicine
Divisions: Faculty of Medicine and Health Sciences > Primary Care Health Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 18 Jun 2019 11:30
Last Modified: 18 Jun 2019 11:30
URI: https://eprints.keele.ac.uk/id/eprint/6501

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