How Glioblastoma Care and Survival Changed in the US
Original title: Trends in Treatment and Survival Among Patients with Glioblastoma in the United States from 2000 to 2020.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
This looked back at past patient records and did not test a new treatment.
The short version
People with glioblastoma: A glioma that is given grade 4, the highest grade. It grows fast. Treatment usually starts soon after it is found. It often means surgery, then radiation and chemotherapy. See the glossary are living a bit longer, and those who got surgery, radiation, and chemo lived the longest.
What was studied. Researchers looked at the records of 46,186 people with glioblastoma: A glioma that is given grade 4, the highest grade. It grows fast. Treatment usually starts soon after it is found. It often means surgery, then radiation and chemotherapy. See the glossary in the US. They checked what care people got from 2000 to 2020 and how long they lived.
What they found. About 43.5% had all the tumor that could be seen taken out, 32.0% had part of it taken out, and 24.5% had no surgery. The typical time people lived went up from 6.0 to 10.0 months. People who got surgery, radiation, and chemo together lived the longest, but the share who got all three stopped growing at 30%.
What this means, and what it doesn't
What it could mean: Getting surgery, radiation, and chemo together was linked to living longer. Taking out as much tumor as is safe was also linked to living longer. Older people, unmarried people, and people with less money were less likely to get all three. You can ask your care team if all three are right for you.
What it doesn't mean: This study only looked back at past records. It does not prove that the treatments caused people to live longer. Some people may not have gotten all three because it was not safe or right for them. These are not new treatments, and none of them is a cure.
Source: PubMed, August 27, 2026 · Read the original
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