New targeted radiation therapy aims to improve stem cell transplants for tough myeloma

NCT ID NCT04579523

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial tests a new approach for high-risk multiple myeloma: a radioactive antibody that targets cancer cells, followed by a donor stem cell transplant. The antibody delivers radiation directly to myeloma cells, while chemotherapy and low-dose radiation help prepare the body for the transplant. The study will enroll 30 patients with newly diagnosed or relapsed/refractory high-risk myeloma to find the safest dose and see how well the disease responds.

What this could mean

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

Active substance
Astatine-211-labeled anti-CD38 monoclonal antibody (OKT10-B10)
What this could lead to
If it works, this could offer a more targeted way to kill myeloma cells before a donor stem cell transplant, potentially improving outcomes for patients with high-risk disease.
What could go wrong
This is a very early phase I trial with only 30 participants, so safety and dosing are still being determined. The treatment involves strong chemotherapy and radiation, which can cause serious side effects.

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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

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Fred Hutch/University of Washington Cancer Consortium

    Seattle, Washington, 98109, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

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