Weight gain after craniopharyngioma treatment in children and in adults
Original title: Hypothalamic obesity in pediatric vs. adult craniopharyngioma: mechanisms, management, and cardiometabolic outcomes.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This looks across many earlier studies rather than running a new one.
This is a review of past studies, not a new result or a new treatment.
The short version
Many people gain a lot of weight after treatment for this brain tumor, and the pattern differs by age.
What was studied. Researchers reviewed studies published from 2000 to 2025. They compared people whose tumor started in childhood with people whose tumor started in adulthood.
What they found. In children, obesity rose from 5.7% before treatment to 57% after treatment. In adults, it rose from 19.2% to 29.2%. Weight loss drugs helped in small groups of patients, up to 17% weight loss over 6 months with semaglutide. But larger trials did not meet their main weight goals.
What this means, and what it doesn't
What it could mean: This weight gain is common, and it is not about willpower. It comes from damage near the part of the brain that controls hunger. Fatty liver and high blood sugar were also common in these patients. It is fair to ask your care team to watch your weight, blood sugar, and liver over time.
What it doesn't mean: This is not a new treatment or a test of one. It is a summary of studies that already exist. It does not show that any drug or surgery reliably fixes this weight gain. The authors say the age differences still need to be checked in studies that compare the two groups head to head. This is not a cure, and it does not change what your doctor can offer you today.
Source: PubMed, September 27, 2026 · Read the original
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