Study shows that most weight loss achieved using injectable obesity drugs can be maintained by switching to daily oral orforglipron (ATTAIN-MAINTAIN)
Reports and Proceedings
Updates every hour. Last Updated: 1-Nov-2026 01:16 ET (1-Nov-2026 05:16 GMT/UTC)
New research presented at this year’s European Congress on Obesity (ECO2026) in Istanbul, Turkey (12-15 May) and published in Nature Medicine shows that most weight loss achieved using the injectable obesity drugs tirzepatide or semaglutide can be maintained by switching to daily oral orforglipron treatment. The study is by Dr Louis J. Aronne, Director of the Comprehensive Weight Control Center at Weill Cornell Medicine, New York, New York, USA, and colleagues, and is sponsored by Eli Lilly and Company, the manufacturer of tirzepatide and orforglipron.
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