Weight loss from Eli Lilly’s Zepbound reversed slowly after treatment stopped

People who stopped taking Eli Lilly & Co.’s Zepbound after about eight months regained half the weight they’d lost a year later, as per a study.

People who stopped taking Eli Lilly & Co.’s Zepbound after about eight months regained half the weight they’d lost a year later, yet were significantly thinner than when they had started the obesity drug, according to a study. Taking Zepbound for 36 weeks resulted in a 20.9% loss of body weight, according to the study published Monday in the Journal of the American Medical Association. But after 88 weeks, a group no longer taking the drug after the first 8 months had still lost 9.9% of their weight. Those who stayed on the drug the entire time lost an average 25.3%. (Also read: Weight loss to cholesterol control; amazing benefits of cumin seeds)

Earlier studies have shown that people who stop taking popular obesity drugs from Lilly and Novo Nordisk A/S called GLP-1s are prone to regaining weight. Still, the results indicate that some benefits are retained a full year later, said Louis Aronne, an obesity expert at Weill Cornell Medicine and lead study author.

“I was surprised how good the result was,” Aronne said in an interview. He’s a consultant for both Lilly and Novo, which makes the competing weight-loss drug Wegovy. The study clearly shows the need for continual use of these drugs for optimal benefit, Aronne said.

“Patients, providers and the public do not always understand obesity is a chronic disease that often requires ongoing treatment,” Jeff Emmick, Lilly’s senior vice president of product development, said in a statement.

Lilly had revealed some of the results of the study in July, but this is the first time the full details have been published.

This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.