Two drugs given into brain fluid helped some breast cancer patients
Original title: Efficacy and Safety of Intraventricular Thiotepa in Combination With Methotrexate for Leptomeningeal Metastasis From Breast Cancer (NJMU-BC04): A Single-Arm Phase II Study.
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 was an early study in only 24 people, so it is not proven care yet.
The short version
In a small study, brain lining tumors shrank in 11 out of 24 patients.
What was studied. Doctors treated 24 adults whose breast cancer had spread to the lining around the brain and spinal cord. Each patient got two drugs, thiotepa and methotrexate, put straight into the fluid around the brain.
What they found. The cancer in the brain shrank in 11 out of 24 patients. It stayed under control in 14 out of 24 patients. Serious side effects happened in 15 out of 24 patients. The most common ones were low platelets and low white blood cells. No one died from the treatment.
What this means, and what it doesn't
What it could mean: This drug pair may hold this kind of cancer in check for a time. Side effects were common and often serious. If this fits your case, ask your doctor about studies like it.
What it doesn't mean: This does not mean a new treatment is ready for you. It was one small early study with no comparison group. The drugs go in through a device placed in the brain, not as a pill. It is not a cure, and it is not standard care. Larger studies are needed before doctors know if it truly helps.
Source: PubMed, September 9, 2026 · Read the original
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