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GlioblastomaFebruary 2019Summary reviewed September 2026

1 in 3 Patients With Advanced Triple-Negative Breast Cancer Responded to This Targeted Treatment

Triple-negative breast cancer is one of the hardest types to treat. In this study, 33% of patients who had already tried at least two other treatments saw their tumors shrink with this antibody-drug combo. The response lasted about 8 months on average.

What the trial was testing

The IMMU-132-01 enrolled 515 patients with glioblastoma. The study was sponsored by Gilead Sciences 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

One in three patients with heavily pretreated triple-negative breast cancer saw their tumors shrink.

The New England journal of medicine · 2019 · NCT01631552

These findings — that tumors shrank in patients who had already tried multiple other treatments — were published in the The New England journal of medicine and represent the headline result of the study.

Researchers tracked outcomes across 515 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 glioblastoma, 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

If you have triple-negative breast cancer that hasn't responded to other treatments, this targeted therapy may be an option. It's now FDA-approved and available. The main side effects are low blood counts, so you'll need close monitoring. Talk to your oncologist about whether this treatment is right for you.

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.