Radiation after failed CAR t: tiny study halted early

NCT ID NCT04473937

First seen Jun 26, 2026 ยท Last updated Jun 26, 2026

Summary

This pilot study looked at whether radiation therapy could help people with lymphoma that did not respond to CAR T cell therapy. Only 3 participants were enrolled before the study was terminated. The main goal was to check safety and side effects of adding radiation shortly after CAR T treatment.

What this could mean

Our plain-language read of the trial. This is informational only โ€” not medical advice or a prediction.

Active substance
Radiotherapy
What this could lead to
If it works, this could offer a way to improve outcomes for lymphoma patients who don't respond to CAR T cell therapy.
What could go wrong
This was a very small pilot study (only 3 participants) that was terminated early, so we have very little data. The approach may not be effective or safe for most patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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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

Locations

  • Massachusetts General Hospital Cancer Center

    Boston, Massachusetts, 02114, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.