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New Drug Mimics Exercise to Burn Fat, Build Muscle
10 Dec
Summary
- New drug ATR-258 activates muscle pathways to burn fat and boost glucose uptake.
- Unlike GLP-1s, it helps users lose weight while preserving muscle mass.
- The oral medication is in early clinical trials, showing promise and good tolerance.

Scientists have developed a novel oral medication, ATR-258, which demonstrates the potential to mimic the effects of exercise by promoting fat burning and enhancing muscle function. This new compound targets muscle pathways, supporting muscle mass preservation during weight loss, a significant concern with current popular weight-loss drugs like GLP-1 agonists.
Unlike injectable GLP-1s that primarily work on appetite regulation and can lead to muscle mass reduction, ATR-258 offers a distinct mechanism. Early preclinical and Phase 1 human trials suggest it improves blood sugar levels and supports muscle maintenance without excessive cardiac stimulation. The drug was found to be well-tolerated in study participants.
While ATR-258 is still in its early stages of clinical development, its ability to preserve muscle mass is particularly noteworthy. Maintaining muscle is vital for overall metabolic health, strength, and preventing issues like frailty. Further clinical trials are necessary before the medication can be considered for FDA approval and public use.




