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New weight-loss shot appears to outperform other obesity drugs on market

New weight-loss shot appears to outperform other obesity drugs on market

Summary

A new drug called retatrutide, developed by Eli Lilly, helped people lose up to 28% of their body weight in a clinical trial. The drug combines three hormones and is taken once a week by injection. It showed better results than other weight-loss drugs currently available.

Key Facts

  • Retatrutide led to an average weight loss of 70.3 pounds (28.3%) over 80 weeks in the highest dose group.
  • The trial included 2,339 adults with obesity or overweight and at least one related health condition, but no diabetes.
  • 45.3% of participants on the highest dose lost at least 30% of their body weight.
  • Retatrutide combines GLP-1, GIP, and glucagon hormones to help metabolism, appetite control, and energy balance.
  • Other drugs like Eli Lilly’s Zepbound and Novo Nordisk’s Wegovy typically result in 14%-20% weight loss, less than retatrutide.
  • Common side effects include nausea (up to 42%), diarrhea, constipation, and vomiting, with higher doses causing more side effects.
  • About 65.3% of participants on the highest dose reduced their BMI below 30, which is the level used to define obesity.
  • The drug is injected weekly, with the dose gradually increasing over time.
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