NIH-funded research R01 grant

Effects of tirzepatide and bimagrumab on body fat, insulin sensitivity, and bone health in adults with obesity

Official title: Effects of tirzepatide and bimagrumab on body composition, insulin sensitivity, and bone in adults with obesity

Funded at Massachusetts General Hospital · NIH-11179342 · Data updated 2026-11-12

A study in adults with obesity will look at how two drugs, tirzepatide and bimagrumab, affect fat loss, insulin sensitivity, and bone health.

More Obesity research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionMassachusetts General Hospital
NIH-funded
Lab location1 site (Boston, United States)
Project startAugust 3, 2023
Project endApril 30, 2029
Funding year2026
Award (this year)$719,472
NIH project number5R01DK136775-03
Project IDNIH-11179342 on NIH RePORTER

Who could benefit from this research

Could help

Adults with obesity who are eligible and willing to participate in a treatment that may include tirzepatide and/or bimagrumab.

Less likely to help

Some participants may not experience the expected fat loss or bone benefits and could encounter side effects from the drugs.

What this research studies

If you have obesity, losing fat—especially visceral fat—can improve your heart and metabolic health, but losing too much lean muscle or bone can be risky. This research tests how tirzepatide combined with bimagrumab may help you lose fat while preserving muscle and bone, potentially improving insulin sensitivity. Participants would undergo treatments and assessments to measure body composition, bone density, and metabolic responses over time. The goal is to identify a weight-loss approach that benefits fat, muscle, and bone together in adults with obesity.

Why it matters

Potential benefit: If successful, this approach could help people lose fat more effectively while protecting muscle and bone, potentially lowering diabetes risk.

How similar studies have gone: Prior GLP-1 receptor agonists have shown fat loss benefits, and there is preclinical optimism about bone effects with related drugs.

Where this research is happening

  • Massachusetts General Hospital
    Boston, United States
    Active

Researchers

  • Principal investigator: Haines, Melanie Schorr — Massachusetts General Hospital
  • Study coordinator: Haines, Melanie Schorr

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.