Battle of the Bulge: Pitting Obesity Drugs Head-to-Head
- Dec 15, 2024
Once again, the weight loss industry resembles a WWE smackdown, with Eli Lilly’s Zepbound trouncing Novo Nordisk’s Wegovy in the first head-to-head comparison of weight loss results for those battling obesity and extra kilos. As team Lilly performs their victory dance, it's important to remember that one size rarely fits all - especially when it comes to waistlines.
Since obtaining its golden ticket for weight management in late 2023, Zepbound users have often stood a little taller on the scales in comparison to team Wegovy. Despite these promising results, a direct face-off was needed to separate the wheat from the chaff.
"Considering the buzz surrounding obesity medications, we felt duty-bound to stir the pot and offer some clarity," remarked Dr. Leonard Glass of Lilly Cardiometabolic Health. The trial saw 751 US-based guinea pigs taking the highest tolerable dose of either drug under strict supervision.
However, this isn't the first time these weight-loss warriors have gone toe-to-toe. A previous cohort study compared the weight loss prowess of tirzepatide (Zepbound's star striker) and semaglutide (Wegovy's secret weapon) in participants hosting both Type 2 diabetes and extra weight.
In true cliffhanger fashion, Lilly didn't spill any details regarding the drug side effects or safety between the two groups. However, intermittent disturbances in the gastrointestinal department seemed to be the most common party-crasher.
"It would be nice to see a side effect showdown. In practice and from trials, tirzepatide seems less troublesome," Dr. Maria Daniela Hurtado Andrade of Mayo Clinic Alix School of Medicine and spokesperson for The Obesity Society, shared via email.
Lilly swears on their mother's graves that all the nitty-gritty will be revealed in a peer-reviewed journal and discussed at an extremely riveting medical meeting next year.
Why might tirzepatide have the edge in this weight loss war? Well, it could be due to its double-hormonal attack. You see, while semaglutide activates the GLP-1 receptors, tirzepatide mimics not only GLP-1 but also a second hormone named GIP. Double whammy!
But, weight loss isn’t the only player on the field. Your BMI, health goals, underlying conditions, and personal preference could tip the scales when choosing an obesity drug. Basically, your provider will call on their inner Yoda to feel the force and recommend the best option.
"In case of a hefty 20% weight loss desire, tirzepatide could be a more suitable pill to swallow compared to semaglutide," admitted Hurtado Andrade. "However, for someone with pre-existing heart disease, semaglutide might clinch the match. The important thing here is for patients and doctors to come together to make an informed decision."
So, whether you're Team Zepbound or Team Wegovy, remember that every body is different. Greater weight loss in a study doesn't necessarily mean greater effectiveness for you. The key is to develop a personalized plan with your doc that satisfies your health needs and won't leave you cursing at your salad.