Research

Hormonal

Among GLP-1 receptor agonists, Tirzepatide demonstrates superior weight loss efficacy compared to Semaglutide and Liraglutide in post-bariatric surgery patients, with the lowest rate of non-responders.

If you are using a GLP-1 agonist after bariatric surgery and not seeing enough results, ask your doctor about switching to or starting Tirzepatide. It is a newer dual-agonist that has shown greater weight loss and fewer non-responders compared to older options like Liraglutide or Semaglutide in recent studies. Note that data is currently limited to shorter-term studies.

LimitedSupportsLOW confidence
Tirzepatide, the newest GLP-1 /GIP agonist, has shown superior results compared to liraglutide and semaglutide... Non-responders to GLP-1 receptor agonist adjunct therapy... were most prevalent among patients treated with liraglutide (27.12%), followed by semaglutide (19.1%), and tirzepatide (2.9%).
Yee Wen Tan et al. · Langenbeck s Archives of Surgery · 2025

Why this rating

Based on only one study (Jamal et al.) with adequate data for meta-analysis, though the finding is consistent with broader phase 3 trials mentioned.

Source

GLP-1 receptor agonists as an adjunct to bariatric surgery for weight loss and metabolic outcome improvement: a systematic review and meta-analysis

Yee Wen Tan et al. · Langenbeck s Archives of Surgery · 2025

DOI 10.1007/s00423-025-03831-4

Meta-analysis · 19 studiesCited 9×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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