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Meta-Analysis
. 2024 Nov;133(5):998-1020.
doi: 10.1016/j.bja.2024.07.025. Epub 2024 Oct 2.

Effectiveness of pain medication tapering in chronic pain patients: a systematic review and meta-analysis

Elke Wuyts  1 , Lisa Goudman  2 , Cleo L Crunelle  3 , Maria Merlano Gomez  4 , Koen Putman  5 , Frenn Bultinck  5 , Julie G Pilitsis  6 , Maarten Moens  7
Affiliations
Meta-Analysis

Effectiveness of pain medication tapering in chronic pain patients: a systematic review and meta-analysis

Elke Wuyts et al. Br J Anaesth. 2024 Nov.

Abstract

Background: This systematic review and meta-analysis aimed to inventory all outcome measures that are affected by tapering in chronic noncancer pain and to investigate the effectiveness of tapering.

Methods: A literature search was conducted from inception to April 2024 in MEDLINE via PubMed, Web of Science, SCOPUS, EMBASE, and PsycINFO.

Results: The initial database search identified 3969 articles, which were screened by two independent reviewers. Studies evaluating pain medication tapering in adults with chronic noncancer pain were eligible for inclusion. In total, 57 and 34 articles were included in the systematic review and meta-analysis, respectively. Risk of bias assessment demonstrated poor, fair, and good quality in 30, 24, and three studies, respectively. Pain intensity was the most reported outcome measure, as reported in 28 studies. Furthermore, a random-effect three-level meta-analysis was performed. An overall effect size of 0.917 (95% confidence interval 0.61-1.22; P<0.001) was found, indicating a beneficial effect of tapering. In addition, a statistically significant improvement was demonstrated after tapering for pain intensity, headache disability, the number of headache days per month, anxiety, depression, the number of pills consumed per month, the number of days with medication intake per month, pain catastrophising, and pain interference. No statistically significant effect was observed for physical functioning, mental health-related quality of life, opioid use, pain self-efficacy, and physical health-related quality of life.

Conclusions: This systematic review revealed a broad range of outcome measures affected by tapering. Owing to the high risk of bias of the included articles, the results of this meta-analysis must be interpreted with caution.

Systematic review protocol: CRD42023416343 (PROSPERO).

Keywords: anti-migraine medication; chronic noncancer pain; gabapentinoids; opioids; pain medication tapering.

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