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Reshape Duo is a saline-filled dual, integrated intragastric balloon (IGB) approved by the Food and Drug Administration for weight loss in patients with obesity. In a prospective, randomized trial, obese patients who received the balloon had significantly greater percent excess weight loss (%EWL) compared with patients treated with diet and exercise alone. However, there are limited data on the real-world efficacy of the Reshape balloon.We performed a retrospective study of data collected from 2 academic centers and 5 private practices in which all patients paid for the IGB and follow-up visits out of pocket. The IGB was removed after 6 months. We collected data (demographic, medical, and laboratory) from 202 adults (mean age 47.8 ± 10.8 years; 83% female) with a baseline mean body mass index of 36.8 + 8.4 kg/m2 who had IGB insertion for weight loss therapy, along with counselling on lifestyle modifications focused on diet and exercise. Primary outcomes were percent total body weight loss (%TBWL) and %EWL at 1, 3, 6, 9, and 12 months after the procedure.Mean %TBWL at 1, 3, 6, 9 and 12 months was 4.8 ± 2.4%, 8.8 ± 4.3%, 11.4 ± 6.7%, 13.3 ± 7.8%, and 14.7 ± 11.8%, respectively. Data were available from 101 patients at 6 months and 12 patients at 12 months; 60.4% of patients achieved more than 10% TBWL and 55.4% had more than 25% EWL. Seventeen patients (8.4%) had esophageal tears during balloon insertion, with no intervention required. Thirteen patients (6.4%) had their IGB removed before the end of the 6-month treatment period. Nausea, vomiting, and abdominal pain were the most common adverse effects, occurring in 149 (73.8%), 99 (49%), and 51 (25.2%) patients. In one patient, the IGB migrated distally leading to small intestinal obstruction requiring surgical removal.In a retrospective analysis of real-world patients who received the Reshape Duo IGB, we found it to be a safe and efficacious endoscopic method for producing weight loss, with most patients achieving greater than 10% TBWL at 6 months.