A new obesity drug could change how weight loss is treated. Unlike Wegovy and similar appetite-suppressing drugs, this experimental therapy works by reprogramming the body’s metabolism – raising hopes for lasting results without rebound weight gain.
Beyond Wegovy’s approach
Current GLP-1 drugs such as Wegovy reduce appetite and slow digestion. The new therapy takes a completely different route by targeting the body’s energy balance directly.
Targeting a genetic switch
The drug blocks a small RNA molecule known as miR-22, which influences fat metabolism, energy production, and the way fat tissue is structured in the body.
Tackling the root cause
Instead of making people eat less, the treatment shifts how the body burns fat and uses energy, aiming for a deeper, long-term reset of metabolism.
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Protecting muscles, not just losing weight
One drawback of fast weight loss is the loss of lean muscle. Early tests suggest the new drug primarily reduces fat mass while preserving muscle tissue.
Strong results in animal trials
In studies with mice and monkeys, the drug led to significant fat loss and, crucially, the animals did not regain the weight after treatment stopped.
Combination therapy shows promise
When combined with Wegovy-like drugs, results were even more impressive – and the weight stayed off after stopping the GLP-1 treatment.
No major side effects so far
Tests in animals have shown no serious safety issues, raising hopes for a well-tolerated option in humans.
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Powering up the mitochondria
The treatment boosts the activity of mitochondria – the cells’ “batteries” – and converts white fat that stores energy into brown fat that burns it.
Human trials underway
A first-in-human trial has begun in the Netherlands with up to 80 participants testing different doses. Initial results are expected in early 2026.
Towards lasting weight loss
If successful, this could be the first of a new class of medicines designed to provide more durable weight loss and improved metabolic health.
This article is based on information from News Medical
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