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Metformin-induced weight loss in patients with or without type 2 diabetes/prediabetes: A retrospective cohort study

Tariq Chukir, Lindsay Mandel, Beverly G. Tchang, N. Al-Mulla, L. I. Igel, Rekha B. Kumar, J. Waitman, L. Aronne et al.

Obesity Research and Clinical Practice, 2020

222 participants · 23 citations

Abstract

It is unknown whether weight loss outcomes differ with metformin monotherapy in patients with obesity with or without type 2 diabetes (T2DM)/prediabetes (PreDM). In this retrospective study, 6- or 12-month weight loss outcomes were compared in 222 patients with or without T2DM/preDM who completed metformin monotherapy. Average weight loss was similar between groups, euglycemic vs. T2DM/preDM (6 months: 6.5 [6.0%] vs. 6.5 [6.1%] p = 0.97; 12 months: 7.4 [6.2%] vs. 7.3 [7.7%], p = 0.92). Categorical weight losses (≥5% and ≥10% of baseline weight) were also similar. Comparable clinically significant weight loss was achieved with metformin monotherapy in patients with obesity with or without T2DM/PreDM.

How strong is the evidence?

Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 222 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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