Effectiveness and persistence of anti-obesity medications (liraglutide 3 mg, lorcaserin, and orlistat) in a real-world primary care setting.

Obesity is a prevalent chronic disease connected to many other chronic medical conditions linked to increased morbidity and mortality. Therefore, treating obesity is of utmost importance. Guidelines suggest medications for obesity management if lifestyle interventions do not lead to substantial weight loss. This study evaluated the efficacy of anti-obesity medications liraglutide 3 mg, lorcaserin, and orlistat in a real-world clinical setting, which is different from a clinical trial setting. The study included 5,306 patients, most of whom were middle-aged females. Liraglutide 3 mg was the medication with the highest efficacy in weight loss. The average weight loss with liraglutide 3 mg was 5.6 kg at 6 months. In addition, 54.8% of the patients had lost ≥5% of their body weight, and 30.4% had lost ≥10% of their body weight after 9 months of treatment. Lorcaserin had only a modest effect on weight loss, with an average weight loss of 1.7 kg at 6 months. Orlistat had almost no impact on weight reduction. Persistence with the medications was also the highest in the liraglutide group.