Clinical trial NCT00666588
Conditions: Adult Acute Monoblastic Leukemia (M5a) Adult Acute Monocytic Leukemia (M5b) Adult Acute Myeloblastic Leukemia With Maturation (M2) Adult Acute Myeloblastic Leukemia Without Maturation (M1) Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities Adult Acute Myeloid Leukemia With Del(5q) Adult Acute Myeloid Leukemia With t(15;17)(q22;q12) Adult Acute Myeloid Leukemia With t(16;16)(p13;q22) Adult Acute Myelomonocytic Leukemia (M4) Childhood Acute Basophilic Leukemia Childhood Acute Eosinophilic Leukemia Childhood Acute Erythroleukemia (M6) Childhood Acute Megakaryocytic Leukemia (M7) Childhood Acute Minimally Differentiated Myeloid Leukemia (M0) Childhood Acute Monoblastic Leukemia (M5a) Childhood Acute Monocytic Leukemia (M5b) Childhood Acute Myeloblastic Leukemia With Maturation (M2) Childhood Acute Myeloblastic Leukemia Without Maturation (M1) Childhood Acute Myelomonocytic Leukemia (M4) Recurrent Adult Acute Myeloid Leukemia Recurrent Childhood Acute Myeloid Leukemia Secondary Acute Myeloid Leukemia
Sponsor: National Cancer Institute (NCI)
Start date: 2008-04-01; Completion date: 2012-12-01
Enrollment: 52 participants; Allocation: NON_RANDOMIZED; Intervention model: PARALLEL

Brief summary:
This phase II trial is studying the side effects and best dose of bortezomib and to see how well it works when given together with combination chemotherapy in treating younger patients with recurrent, refractory, or secondary acute myeloid leukemia (AML). Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as idarubicin, cytarabine, and etoposide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) together with bortezomib may kill more cancer cells

Detailed description:
PRIMARY OBJECTIVES:

I. To determine the toxicities and tolerability of bortezomib in combination with standard-relapse AML therapy (idarubicin/cytarabine or etoposide/high-dose cytarabine) in pediatric and young adult patients with relapsed or primary-refractory or secondary AML.

II. To estimate the complete response rate to the Arm A and Arm B regimens.

SECONDARY OBJECTIVES:

I. To determine whether bortezomib inhibits proteasome activity, NF-kB activity and induces apoptosis pathway proteins in leukemia myeloblasts. II. To determine the feasibility of measuring AML stem cells in relapsed and recovering bone marrow.

OUTLINE: This is a multicenter, dose-escalation study of bortezomib. Patients are stratified according to anthracycline\*-equivalent cumulative exposure (≤ 400 mg/m² vs \> 400 mg/m²). Patients are assigned to 1 of 2 groups.

GROUP I (efficacy phase, patients with ≤ 400 mg/m² anthracycline-equivalent cumulative exposure - Closed as of 08/01/10): Patients receive idarubicin IV over 15 minutes on days 1-3, low-dose cytarabine IV continuously over days 1-7, and bortezomib IV on days 1, 4, and 8.

GROUP II (dose-finding phase (closed as of 10/10) and efficacy phase, patients with \> 400 mg/m² anthracycline\*-equivalent cumulative exposure): Patients receive etoposide IV over 1 hour on days 1-5, high-dose cytarabine IV over 1 hour twice daily on days 1-5, and bortezomib IV on days 1, 4, and 8.

NOTE: \* Anthracycline restriction no longer required for group 2 as of 10/02/10.

All patients receive intrathecal cytarabine prior to courses 1 and 2. In both arms, treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

After completion of study therapy, patients are followed periodically for at least 5 years.

Arms: arm 1: Bortezomib 1.3mg/m2 to assess efficacy in low prior anthracycline exposure. Patients receive idarubicin IV (12 mg/m2/day) over 15 minutes on days 1-3, low-dose cytarabine IV (100 mg/m2/day) continuously over days 1-7, and bortezomib IV (1.3 mg/m2) on days 1, 4, and 8. All patients receive intrathecal cytarabine (30 mg - age 1-1.99 years, 50 mg - age 2-2.99 years, 70 mg - age ≥ 3 years) prior to courses 1 and 2. Treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity (closed as of 08/01/10). Dosage modification based on age \< 3 years old. arm 2: Bortezomib 1.0 mg/m2 to assess feasibility in high prior anthracycline exposure. Patients receive etoposide IV (150 mg/m2/dose) over 1 hour on days 1-5, high-dose cytarabine IV (1000 mg/m2/dose) over 1 hour twice daily on days 1-5, and bortezomib IV (1.0 mg/m2) on days 1, 4, and 8. All patients receive intrathecal cytarabine (30 mg - age 1-1.99 years, 50 mg - age 2-2.99 years, 70 mg - age ≥ 3 years) prior to courses 1 and 2. Treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity. arm 3: Bortezomib 1.3 mg/m2 to assess feasibility in high prior anthracycline exposure. Patients receive etoposide IV (150 mg/m2/dose) over 1 hour on days 1-5, high-dose cytarabine IV (1000 mg/m2/dose) over 1 hour twice daily on days 1-5, and bortezomib IV (1.3 mg/m2) on days 1, 4, and 8. All patients receive intrathecal cytarabine (30 mg - age 1-1.99 years, 50 mg - age 2-2.99 years, 70 mg - age ≥ 3 years) prior to courses 1 and 2. Treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity (dose-finding phase closed as of 10/10). arm 4: Bortezomib 1.3 mg/m2 to assess efficacy in high prior anthracycline exposure. Patients receive etoposide IV (150 mg/m2/dose) over 1 hour on days 1-5, high-dose cytarabine IV (1000 mg/m2/dose) over 1 hour twice daily on days 1-5, and bortezomib IV (1.3 mg/m2) on days 1, 4, and 8. All patients receive intrathecal cytarabine (30 mg - age 1-1.99 years, 50 mg - age 2-2.99 years, 70 mg - age ≥ 3 years) prior to courses 1 and 2. Treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity
Interventions: intervention 1: idarubicin intervention 2: cytarabine intervention 3: bortezomib intervention 4: etoposide intervention 5: laboratory biomarker analysis
Intervention descriptions: intervention 1: Given IV intervention 2: Given IV or IT intervention 3: Given IV intervention 4: Given IV intervention 5: Correlative studies

Protocol documents: