Publication analysis · Module 3

BELIEVE: body composition is not the same as function

BELIEVE was a randomized phase 2 trial in 507 adults with obesity, excluding diabetes. It compared bimagrumab, semaglutide, combinations and placebo over 48 weeks, followed by an open-label extension. Bimagrumab is an investigational monoclonal antibody, not a peptide agonist.

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Original publication

Bimagrumab plus semaglutide alone or in combination for the treatment of obesity: a randomized phase 2 trial

DOI 10.1038/s41591-026-04204-0 · PMID 41772149 · Citation pending verification

Educational information for healthcare professionals and the general public. Not individual medical advice, diagnosis, treatment, or a recommendation to use a compound.

BELIEVE was a randomized phase 2 trial in 507 adults with obesity, excluding diabetes. It compared bimagrumab, semaglutide, combinations and placebo over 48 weeks, followed by an open-label extension. Bimagrumab is an investigational monoclonal antibody, not a peptide agonist.

The findings support further study of weight and body composition. Preserving lean mass on DXA does not by itself establish better strength or daily function. Combination research should retain its trial phase and comparator; it should not be presented as a treatment standard or a validated commercial stack.

References

Bibliographic sources shown for transparency. Citation verification pending; no citation is marked verified.

  1. Heymsfield SB et al. Nature Medicine. 2026;32(3):869-882. DOI: 10.1038/s41591-026-04204-0. PMID: 41772149.DOI 10.1038/s41591-026-04204-0 · PMID 41772149

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