New drug shows promise for brain tumors from breast and lung cancer
NCT ID NCT05305365
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a drug called QBS72S in 21 adults with breast or lung cancer that has spread to the brain. The drug is given once a month through an IV. The main goal is to see if it shrinks brain tumors. The trial is active but not recruiting new participants.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
QBS72S (also called QBS10072S), a drug given by IV once a month
What this could lead to
If it works, this could point toward a new treatment option for people with cancer that has spread to the brain.
What could go wrong
This is a small, early-phase trial with only 21 participants, so results may not apply widely. The drug may not shrink tumors or improve survival, and side effects are still being studied.
Disclaimer
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Stanford Cancer Institute
Palo Alto, California, 94305, United States