Cancer drug shows promise in taming rare blood disorder

NCT ID NCT00044304

First seen Jun 27, 2026 ยท Last updated Jun 27, 2026

Summary

This study tests whether the drug imatinib (Gleevec) can safely lower high levels of eosinophils (a type of white blood cell) in people with hypereosinophilic syndrome (HES), a rare condition that can damage organs. About 70 adults and children (age 2 and up) with a specific form of HES or those who didn't respond to steroids will take imatinib daily. The goal is to bring eosinophil counts back to normal and then slowly reduce the drug dose, with close monitoring for side effects and relapse.

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Conditions

The condition(s) this trial relates to.

hypereosinophilic syndrome myeloid neoplasm myeloid neoplasm associated with PDGFRA rearrangement myeloid neoplasm associated with PDGFRB rearrangement myeloid/lymphoid neoplasm associated with JAK2 rearrangement

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