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Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet]. York (UK): Centre for Reviews and Dissemination (UK); 1995-.

Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet].

Effects of telmisartan therapy on interleukin-6 and tumor necrosis factor-alpha levels: a meta-analysis of randomized controlled trials

Review published: 2013.

Bibliographic details: Takagi H, Mizuno Y, Yamamoto H, Goto SN, Umemoto T.  Effects of telmisartan therapy on interleukin-6 and tumor necrosis factor-alpha levels: a meta-analysis of randomized controlled trials. Hypertension Research 2013; 36(4): 368-373. [PubMed: 23235712]

Abstract

A recent meta-analysis of randomized head-to-head trials suggests that therapy with telmisartan, an angiotensin II receptor blocker (ARB) and partial agonist of peroxisome proliferator-activated receptor-gamma, may increase adiponectin levels more strongly than other ARB therapies. Therefore, telmisartan would be expected to reduce interleukin-6 (IL-6) or tumor necrosis factor-alpha (TNF-α). To determine whether telmisartan reduces IL-6 or TNF-α, we performed the first meta-analysis of randomized controlled trials of telmisartan therapy. MEDLINE, EMBASE and the Cochrane Central Register of Controlled Trials were searched through November 2011. Eligible studies were prospective randomized controlled trials of telmisartan vs. unrestricted control therapy reporting IL-6 or TNF-α levels as an outcome. For each study, data regarding percent changes from baseline to final IL-6 or TNF-α levels in both the telmisartan and control groups were used to generate standardized mean differences (SMDs) and 95% confidence intervals (CIs). Nine reports of randomized trials enrolling a total of 645 patients were identified. Pooled analysis of seven and five trials demonstrated a statistically significant reduction in percent changes of IL-6 (fixed-effects SMD, -0.385; 95% CI, -0.581 to -0.189; P<0.001; P for heterogeneity=0.073) and TNF-α levels (random-effects SMD, -0.627; 95% CI, -0.945 to -0.308; P<0.001; P for heterogeneity=0.029) with telmisartan relative to control therapy, respectively. In conclusion, based on a meta-analysis of nine randomized controlled trials, telmisartan therapy is likely effective in reducing IL-6 and TNF-α levels.

CRD has determined that this article meets the DARE scientific quality criteria for a systematic review.

Copyright © 2014 University of York.

PMID: 23235712

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