• Mahmood AminiLari, Priya Manjoo, Samantha Craigie, Rachel Couban, Li Wang, and Jason W Busse.
• Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.
• Pain Med. 2019 Feb 1; 20 (2): 301-313.

ObjectiveTo systematically review evidence addressing the efficacy of testosterone replacement therapy (TRT) and opioid tapering for opioid-induced hypogonadism among patients with chronic noncancer pain.Study DesignSystematic review of randomized controlled trials (RCTs) and observational studies.MethodsWe searched MEDLINE, CINAHL, AMED, CENTRAL, CINAHL, DARE, EMBASE, and PsycINFO through August 2017. Eligible studies enrolled ≥10 patients with chronic noncancer pain and opioid-induced hypogonadism and reported the effect of TRT or opioid tapering on a patient-important outcome collected ≥14 days after treatment. Pairs of reviewers independently screened for eligible studies, assessed risk of bias, and extracted data. We used the GRADE approach to rate quality of evidence.ResultsOf 666 abstracts reviewed, five studies including one RCT (N = 84) and four observational studies (N = 157) were eligible. No studies explored the effect of opioid tapering for opioid-induced hypogonadism. Very low-quality evidence found that TRT was associated with improvements in pain (median reduction of 2 points on the 11-point numerical rating scale for pain; 95% confidence interval [CI] = -1.4 to -2.6; minimally important difference [MID] = 2 points), and emotional functioning (mean increase of 9 points on the 100-point SF-36 Mental Component Summary score; 95% CI = 4.40 to 13.60; MID = 5 points). Low-quality evidence suggested that TRT had no effect on sleep quality, sexual function, physical functioning, role functioning, or social functioning; very low-quality evidence suggested no association with depressive symptoms.ConclusionsLow-quality to very low-quality evidence suggests that TRT may improve pain and emotional functioning, but not other outcomes, in chronic noncancer pain patients with opioid-induced hypogonadism.© 2018 American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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