Indian Journal of Endocrinology and Metabolism (Jan 2021)
Efficacy and safety of novel twincretin tirzepatide a dual GIP and GLP-1 receptor agonist in the management of type-2 diabetes: A Cochrane meta-analysis
Abstract
Background: Till date, there is no Cochrane meta-analysis available which has analyzed efficacy and safety of tirzepatide in type-2 diabetes. This meta-analysis was undertaken to address this knowledge gap. Methods: Electronic databases were searched for randomized controlled trials (RCTs) involving people with diabetes receiving tirzepatide compared to a placebo/active comparator. Primary outcome was to evaluate changes in HbA1c. Secondary outcomes were to evaluate alterations in blood–glucose, glycemic targets, weight, lipids, and adverse events. Results: From 34 articles initially screened, data from six RCTs involving 3484 patients were analyzed. Over 12–52 weeks, individuals receiving tirzepatide had significantly greater lowering of HbA1c [mean difference (MD) = -0.75% (95% confidence interval (CI): -1.05 to -0.45); P 5% [OR = 19.18 (95% CI: 2.34–157.17); P 10% [OR = 21.40 (95% CI: 2.36–193.94); P 15% [OR = 32.84 (95% CI: 2.27–474.33); P = 0.01; I2 = 96%] compared to active-control group. Treatment-emergent adverse events [risk ratio (RR) = 1.43 (95% CI: 1.14–1.80); P < 0.01; I2 = 40%] and severe adverse events [RR = 1.00 (95% CI: 0.64–1.57); P = 1.00; I2 = 49%] were not different. High data heterogeneity and the presence of publication bias limits the grading of current data from “moderate to low.” Conclusion: Tirzepatide has impressive glycemic efficacy and weight-loss data over 1-year clinical use. The need for higher grade, long-term efficacy, and safety data remains.
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