Leukemia trial pulled before it started: safer transplant prep remains untested

NCT ID NCT02577094

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This trial was designed to test a milder conditioning regimen using a radioactive antibody (90Y-Epratuzumab) followed by chemotherapy and a stem cell transplant for adults with CD22-positive B-cell acute lymphoblastic leukemia. The goal was to find the safest dose that still controls the disease. However, the study was withdrawn before any patients were enrolled, so no data were collected.

What this could mean

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

Active substance

90Y-Epratuzumab (a radioactive antibody targeting CD22) combined with busulfan, fludarabine, and thymoglobulins

What this could lead to

If it had proceeded, this trial could have pointed toward a safer way to prepare patients for stem cell transplants, potentially reducing side effects while controlling leukemia.

What could go wrong

The trial was withdrawn before enrolling any participants, so no results are available. The approach involves significant risks, including toxicity from radiation and chemotherapy, and it was only in early-phase testing.

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 precursor B-cell acute lymphoblastic leukemia

As listed by the trial registrant

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