Experimental combo therapy aims to outsmart leukemia without dangerous side effects

NCT ID NCT05507827

First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This early-stage trial tests whether giving specially engineered donor immune cells (CAR T cells) along with a special stem cell transplant (Orca-T) is safe for adults with a high-risk type of leukemia called B-cell ALL. The approach is designed to help the donor cells attack the leukemia while reducing the chance of the donor cells attacking the patient's body. The study involves 22 participants and focuses on safety and engraftment success.

What this could mean

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

Active substance

Donor-derived CD19/CD22-CAR T cells and Orca-T (regulatory T cells plus stem cells)

What this could lead to

If it works, this could offer a new way to treat B-cell ALL by boosting the immune system's ability to fight leukemia while reducing the risk of graft-versus-host disease.

What could go wrong

This is a very early (Phase 1) and small trial (22 people), so safety and effectiveness are not yet proven. There are risks of severe side effects from the chemotherapy, graft failure, or serious immune reactions.

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.

B-cell acute lymphoblastic leukemia lymphoid leukemia

As listed by the trial registrant

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

Contacts and locations

Locations

  • Stanford Cancer Center

    Palo Alto, California, 94305, United States