A review of a possible new drug target for one type of glioblastoma
Original title: The ERK MAPK pathway in mesenchymal glioblastoma: tumorigenesis, microenvironmental reprogramming, and the therapeutic promise of RAS(ON) multi-selective inhibition.
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 where the science is heading, not a test in people with this tumor.
The short version
Doctors are looking at a new drug idea for a hard type of brain tumor, but it has not been tested in this tumor yet.
What was studied. This is a review paper, not a new study. The authors looked at past research on the mesenchymal type of 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. They focused on a drug called daraxonrasib and a cell signal path called ERK MAPK.
What they found. The mesenchymal type makes up as many as 49% of 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 cases. It has the worst outlook of the types. In these tumors, gene changes keep the ERK MAPK signal switched on, which helps the tumor grow and resist drugs. Daraxonrasib blocks a protein called RAS that drives that signal. It is being tested in late stage trials for pancreatic cancer, and in animal models of other cancers it was able to reach the brain.
What this means, and what it doesn't
What it could mean: This points to a possible new way to treat this tumor type someday. It gives researchers a clear next step to test. For now it is a idea drawn from past work, not a treatment a doctor can offer.
What it doesn't mean: This does not mean the drug works for 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. No one has tested it in people with this tumor, and the authors say more research and lab models are needed first. The paper is a review of where the science is heading, not a new result. The drug is not approved for brain tumors. It is not a promise of a cure.
Source: PubMed, August 18, 2026 · Read the original
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