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A new obesity treatment being developed by Altimmune met goals for weight loss in a mid-stage clinical trial, but the data showed it doesn’t have a leg up on other popular drugs on the market.

The drug, called pemvidutide, is part of a growing class of medications that target the GLP-1 receptor, mimicking the effects of a hormone that can help people feel full. It’s proved successful for treatments like Novo Nordisk’s Wegovy and Eli Lilly’s Mounjaro, which have quickly become blockbuster drugs.

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Interim data released Tuesday from 160 of the participants in Altimmune’s Phase 2 study showed that pemvidutide could also have blockbuster potential: Trial participants who took the drug for 24 weeks saw an average 9.7% reduction in weight, when adjusted for the placebo group. That’s in line with Wegovy and Mounjaro, which are associated with between 8% and 12% weight loss, according to Jefferies analysts.

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