Publication date: Feb 01, 2025

Bariatric surgery, such as Roux-en-Y gastric bypass (RYGB) remains the gold standard for treating obesity. Most people regain weight from postsurgery nadir. Liraglutide 3. 0 mg is approved for weight management. This study will examine the effects on liraglutide 3. 0 mg on weight regain post-RYGB. University Hospital, United States. A 56-week, double-blind, placebo-controlled study was conducted in 132 subjects, who achieved ≥25% total body weight loss (TBWL) status-post-RYGB and regained ≥10% TBWL after reaching nadir weight (NW). Subjects 18-120 months post-RYGB were randomized to receive liraglutide 3. 0 mg/d (n = 89) or placebo (n = 43) with lifestyle counseling regularly for 56 weeks. The co-primary endpoints were the proportion of subjects losing at least 5%, 10%, and 15% TBWL and achieving weight lower than their NW. 53. 4% of the placebo group and 65% of the liraglutide group completed the trial due to Severe acute respiratory syndrome coronavirus 2 pandemic. The change in %TBWL from baseline to 56-weeks was -8. 8 (8. 5, -29. 2 to 9. 7) and 1. 1 (3. 5, -7. 9 to 5. 99) in the liraglutide and placebo groups, respectively. 76% and 17% of subjects achieved ≥5% TBWL at 56 weeks in the liraglutide and placebo groups, respectively; 51% and 26. 0% of the liraglutide group achieved ≥10% and ≥15% TBWL, respectively. None of the placebo group lost ≥10% TBWL. Twenty-one percent of subjects receiving liraglutide surpassed postoperative NW. No subjects on placebo met this goal. Nonserious adverse events occurred in 41. 6% of subjects on liraglutide. Serious adverse events (SAE) occurred less often on liraglutide. Liraglutide was significantly more effective than placebo in treating weight regain that occurs post-RYGB without increased SAE.

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