Adjunctive Semaglutide in Patients Undergoing Intragastric Balloon for Weight Loss: 12-Month Prospective Comparative Study.

INTRODUCTION: Given the global increase in obesity prevalence, there has been an emergence of a multitude of treatment options, specifically less invasive operations, like intragastric balloons, and pharmaceutical treatments like semaglutide. The aim of this study is to evaluate the synergistic effects of the intragastric balloon and semaglutide on weight reduction and weight regain. METHODS: In this prospective, randomized cohort, adults between the ages of 18 and 65, with a BMI of at least 27 kg/m², were assigned to one of two treatment groups: IGB only or IGB + semaglutide. Subcutaneous injections of semaglutide were administered with increasing dosages on a weekly basis in the second month and were continued after the removal of the intragastric balloon. All participants were monitored, and results were recorded at 3, 6, and 12 months. RESULTS: Forty patients completed the study (n = 20 per group). The IGB + semaglutide group lost more weight than the IGB only group at 3, 6, and 12 months, with statistically significant differences at 6 months (29.09 ± 3.45 kg vs. 18.35 ± 2.80 kg, p < 0.001) and 12 months (33.03 ± 3.55 kg vs. 15.56 ± 2.50 kg, p < 0.001). After intragastric balloon removal at 6 months, the IGB only group regained previously lost weight while the IGB + semaglutide group continued to lose weight (2.79 ± 1.74 vs. -3.94 ± 2.16, p < 0.001). CONCLUSION: Adjunctive semaglutide therapy with intragastric balloon (IGB) optimizes weight loss, while enhancing the sustainability achieved with intragastric ballooning alone. This combined therapeutic approach may provide an additional non-invasive intervention that provides optimal results and long-term weight loss maintenance.