Experimental drug boosts Cancer-Killing cells in lymphoma trial

NCT ID NCT05359211

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-phase trial tests whether adding an experimental drug called NKTR-255 to standard CAR-T cell therapy can improve outcomes for people with large B-cell lymphoma that has returned or not responded to treatment. The study involves 27 adults and focuses on safety and how well the combination works. NKTR-255 is designed to strengthen the immune system's cancer-fighting cells, while the CAR-T cells are engineered to recognize and destroy lymphoma cells.

What this could mean

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

Active substance

NKTR-255 (an immune-boosting drug) and lisocabtagene maraleucel (CAR-T cells that target cancer)

What this could lead to

If it works, this combination could improve the ability of CAR-T therapy to fight hard-to-treat lymphoma, potentially leading to better remission rates.

What could go wrong

This is a very early (Phase 1) trial with only 27 people, so results may not apply broadly. There is also a risk of serious side effects from the immune system overreacting.

Disclaimer Read more

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.

diffuse large B-cell lymphoma follicular lymphoma high grade B-cell lymphoma primary mediastinal large B-cell lymphoma relapsed/refractory diffuse large B-cell lymphoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Fred Hutch/University of Washington Cancer Consortium

    Seattle, Washington, 98109, United States