Conditions: Acute Biphenotypic Leukemia de Novo Myelodysplastic Syndrome Previously Treated Myelodysplastic Syndrome Recurrent Adult Acute Myeloid Leukemia Untreated Adult Acute Myeloid Leukemia Secondary Acute Myeloid Leukemia
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 199
Healthy volunteers: no

Brief summary:
This phase I/II trial studies the side effects and best dose of mitoxantrone hydrochloride when given together with filgrastim, cladribine, and cytarabine and to see how well they work in treating patients with acute myeloid leukemia or high-risk myelodysplastic syndromes that is newly diagnosed, has returned, or does not respond to treatment. Drugs used in chemotherapy, such as filgrastim, cladribine, cytarabine, and mitoxantrone hydrochloride, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading.

Detailed description:
PRIMARY OBJECTIVES:

I. Estimate the maximum tolerated dose (MTD) of dose-intensified mitoxantrone hydrochloride (mitoxantrone) as part of the filgrastim (G-CSF), cladribine, cytarabine, mitoxantrone hydrochloride (G-CLAM) regimen separately for adults with newly diagnosed acute myeloid leukemia (AML) and those with relapsed/refractory AML receiving first or greater salvage therapy.

SECONDARY OBJECTIVES:

I. To determine, within the limits of a phase 1/2 study, disease response and duration of remission separately for patients with newly diagnosed and relapsed/refractory AML.

II. To describe, within the limits of a phase 1/2 study, the toxicity profile of the study regimen separately for patients with newly diagnosed and relapsed/refractory AML.

OUTLINE: This is a phase I, dose-escalation study of mitoxantrone hydrochloride followed by phase II study.

INDUCTION CHEMOTHERAPY (G-CLAM): Patients receive G-CLAM chemotherapy comprising filgrastim subcutaneously (SC) daily on days 0-5, mitoxantrone hydrochloride intravenously (IV) over 60 minutes on days 1-3, cladribine IV over 2 hours daily on days 1-5, and cytarabine IV over 2 hours daily on days 1-5. Patients achieving complete remission with incomplete peripheral blood count recovery (CRi), partial remission, or persistent disease may receive a second course of induction chemotherapy. Patients achieving complete remission (CR) or CR with incomplete platelet count recovery (CRp) may continue on to Consolidation Chemotherapy.

CONSOLIDATION CHEMOTHERAPY (G-CLA): Beginning within 6 weeks of achieving CR/CRp/CRi, patients receive G-CLA comprising filgrastim SC on days 0-5, cladribine IV over 2 hours daily on days 1-5, and cytarabine IV over 2 hours daily on days 1-5. Treatment continues for up to 4 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up periodically for up to 5 years.

Arms:
arm 1: INDUCTION CHEMOTHERAPY (G-CLAM): Patients receive G-CLAM chemotherapy comprising filgrastim SC daily on days 0-5, mitoxantrone hydrochloride IV over 60 minutes on days 1-3, cladribine IV over 2 hours daily on days 1-5, and cytarabine IV over 2 hours daily on days 1-5. Patients achieving CRi, partial remission, or persistent disease may receive a second course of induction chemotherapy. Patients achieving CR or CRp may continue on to Consolidation Chemotherapy.

CONSOLIDATION CHEMOTHERAPY (G-CLA): Beginning within 6 weeks of achieving CR/CRp/CRi, patients receive G-CLA comprising filgrastim SC on days 0-5, cladribine IV over 2 hours daily on days 1-5, and cytarabine IV over 2 hours daily on days 1-5. Treatment continues for up to 4 courses in the absence of disease progression or unacceptable toxicity.

Interventions: intervention 1: Cladribine intervention 2: Cytarabine intervention 3: Filgrastim intervention 4: Laboratory Biomarker Analysis intervention 5: Mitoxantrone Hydrochloride
Intervention descriptions: intervention 1: Given IV intervention 2: Given IV intervention 3: Given SC intervention 4: Correlative studies intervention 5: Given IV

Protocol document:
Prot_SAP_ICF_000.pdf: