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Pancreatic CancerDecember 2024Summary reviewed June 2026

What Researchers Found Testing Ponsegromab for Cancer-Related Weight Loss

Researchers tested ponsegromab, an antibody that blocks a protein called GDF-15, in people losing weight from cancer. At the highest dose, patients gained about 6 pounds more than those on placebo after 12 weeks, with better appetite and activity levels.

What the trial was testing

The trial enrolled 187 patients with pancreatic cancer. The study was sponsored by Pfizer and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was initial testing (phase 2). Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.

What the results showed

Patients on the highest dose gained nearly 3 kilograms more than those on placebo.

The New England journal of medicine · 2024 · NCT05546476

These findings — that people on the highest dose gained about 6 pounds more than placebo — were published in the The New England journal of medicine and represent the headline result of the study.

Researchers tracked outcomes across 187 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.

What this means for patients

For patients with pancreatic cancer, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.

What you can do now

This was an early-stage study and ponsegromab is not yet FDA-approved for cancer-related weight loss. The results are promising and may lead to future approval. If you're losing weight because of cancer, talk to your doctor about nutrition support options and whether there are open trials testing this treatment.

Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.