Efficacy of the treatment with dapagliflozin and metformin compared to metformin monotherapy for weight loss in patients with class III obesity: a randomized controlled trial
Abstract
Background: Mexico has one of the highest prevalence rates of obesity worldwide. New pharmacological strategies that focus on people with class III obesity are required. Metformin and dapagliflozin are two drugs approved for the treatment of diabetes. Beyond its effects on glucose, metformin has been suggested by some studies to result in weight loss. Therapy with dapagliflozin is associated with a mild but sustained weight loss in patients with diabetes. The primary outcome of the study is to determine if the combined treatment with dapagliflozin and metformin is more effective than monotherapy with metformin for weight loss in patients with class III obesity and prediabetes or diabetes who are awaiting bariatric surgery (including those patients who do have surgery). We also aimed to assess the effect of this combined treatment on waist circumference, triglycerides, blood pressure, and inflammatory cytokines.
Methods: This randomized phase IV clinical trial will include patients with diabetes or prediabetes who are between the ages of 18 and 60 years and exhibit grade III obesity (defined as body mass index ≥ 40 kg/m2). Patients using insulin will be excluded. Subjects will be randomized to one of two groups as follows: 1) metformin tablets 850 mg PO bid or 2) metformin tablets 850 mg PO bid plus dapagliflozin tablets 10 mg PO qd. The sample size required is 108 patients, which allows for a 20% dropout rate: 54 patients in the metformin group and 54 in the…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 108 participants or records.
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