Semaglutide reduces weight, while broader health benefits remain less certain
The review found clear weight-loss effects, while longer use increased withdrawals because of adverse events.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
For adults with obesity, semaglutide produced clinically relevant weight loss compared with placebo, with weight effects likely to persist during continued treatment. Effects on quality of life, major adverse cardiovascular events and mortality were limited or uncertain. Stopping treatment because of adverse events became a more clinically relevant concern at longer follow-up.
This abstract-based account cannot assess individual trial details. The manufacturer played a major role in most trials, and uncertainty reflected bias, imprecision and inconsistent findings.
What researchers found
Reaching 5% weight loss
Semaglutide versus placebo at 6 to 17 months; high-certainty evidence. The 95% confidence interval gives an uncertainty range of 2.30 to 3.12 times as likely.
Weight outcomes
The review assessed both average weight change and reaching a weight-loss threshold. Evidence was highly certain at medium-term follow-up. Longer-term weight results were moderately certain, and the authors described persistence while participants continued treatment.
Adverse events
Non-serious adverse events may increase at medium-term follow-up, while serious-event effects were very uncertain. The authors distinguished relative withdrawal risks from their absolute clinical importance, which they judged limited at medium term and more important with longer treatment.
The original publication
Semaglutide for adults living with obesity.
Bracchiglione J, Meza N, Franco JV et al.
Cochrane Database Syst Rev · 2025
- PubMed ID
- 41161683
- Record checked
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