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In March 2014, Archivist reported on a systematic review of the use of metformin in treating morbid obesity: the conclusion was that it was of limited value (doi: 10.1136/archdischild-2014-305957). This has now been added to by a trial from Spain (Pastor-Villaescusa B et al. Pediatrics 2017. doi:10.1542/peds.2016-4285). In a double-blind trial, 140 young people with a BMI > 95th centile, half of whom were pre-pubertal, were randomised: they received either 500 mg twice daily of metformin or placebo, for 6 months. The outcomes differed depending on pubertal status: in the pre-pubertal group, the BMI z-score was reduced by 0.2 more …
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Competing interests None declared.
Provenance and peer review Commissioned; internally peer reviewed.