New hope for rare genetic disorder: Lower-Dose chemo before transplant may cut risks

NCT ID NCT07316595

First seen Jan 07, 2026 · Last updated May 15, 2026 · Updated 17 times

Summary

This study tests a lower dose of the drug treosulfan before a stem cell transplant in 24 people with Nijmegen breakage syndrome, a rare genetic condition that weakens the immune system and raises cancer risk. The goal is to see if this approach can safely fix the immune problem and lower the chance of tumors, while avoiding severe side effects. Participants without cancer get a lower dose, and those with cancer get a slightly higher dose.

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