New drug combo aims to make stem cell transplants safer for sickle cell patients

NCT ID NCT06145282

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

Summary

This early-phase trial tests a new combination of drugs (briquilimab, abatacept, and alemtuzumab) plus low-dose radiation to prepare people with sickle cell disease for a stem cell transplant from a half-matched family donor. The goal is to reduce serious side effects like graft-versus-host disease and organ damage. Six participants aged 16 and older will be followed for 5 years to see if the transplant is safe and effective.

What this could mean

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

Active substance
briquilimab, abatacept, alemtuzumab, and radiation
What this could lead to
If it works, this could make stem cell transplants safer and more available for people with sickle cell disease, even those with organ damage.
What could go wrong
This is a very early, small trial with only 6 participants. The new drug combo may not work as hoped, and there are serious risks like graft failure or severe graft-versus-host disease.

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

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

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