Conditions: Chronic Myeloid Leukemia
Keywords: CML HHT Homoharringtonine Omacetaxine
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 100
Healthy volunteers: no

Brief summary:
A Phase II open-label trial of subcutaneous HHT (omacetaxine mepesuccinate) in the treatment of patients who are resistant to or intolerant to Tyrosine Kinase Inhibitors.

Detailed description:
This will be an open label, multicenter study of subcutaneous HHT (omacetaxine mepesuccinate) therapy of patients with chronic myeloid leukemia (CML) in chronic, accelerated, or blast phase who have failed or are intolerant to tyrosine kinase inhibitor therapy. Patients will be treated with induction course cycles consisting of subcutaneous (SC) HHT 1.25 mg/m² twice daily for 14 consecutive days every 28 days. Patients will be evaluated every 7 days with complete blood and platelet counts while undergoing induction therapy; the number of consecutive doses of HHT or intervals between subsequent cycles may be adjusted, as clinically indicated, according to guidelines provided in the treatment plan.

Arms:
arm 1: Omacetaxine mepesuccinate (OMA) Induction: 1.25mg/m\^2 subcutaneously twice daily for 14 consecutive days, every 28 days for up to six cycles.

Omacetaxine mepesuccinate (OMA) Maintenance: 1.25mg/m\^2 subcutaneously twice daily for 7 consecutive days, every 28 days for up to 24 months.

Interventions: intervention 1: Omacetaxine mepesuccinate
Intervention descriptions: intervention 1: Induction: 1.25mg/m\^2 subcutaneously twice daily for 14 consecutive days, every 28 days.

Maintenance: 1.25mg/m\^2 subcutaneously twice daily for 7 consecutive days, every 28 days.

Response targets during induction vary by chronic myeloid leukemia (CML) subclass (chronic, accelerated, or blast phase). Participants will complete at least one cycle (14 days treatment of a 28 day cycle) of induction therapy before changing to maintenance therapy. Participants not demonstrating evidence of clinical response after 6 induction cycles will be considered for removal from the study.

Protocol document: