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Clinical Trial Summary

This phase I trial is studying the side effects and best dose of flavopiridol in treating patients with relapsed or refractory acute myeloid leukemia, acute lymphoblastic leukemia, or chronic myelogenous leukemia. Drugs used in chemotherapy, such as flavopiridol, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing.


Clinical Trial Description

PRIMARY OBJECTIVES:

I. To determine the maximal tolerable dose of flavopiridol in relapsed or refractory acute leukemia in adults (Stratum 1) and children (Stratum 2).

II. To define the qualitative and quantitative toxicities of flavopiridol in regard to organ specificity, time course, predictability, and reversibility.

III. To determine the preliminary clinical activity of flavopiridol in adults (Stratum 1) and children (Stratum 2) using this novel schedule in acute leukemia.

IV. To evaluate the plasma and cellular pharmacokinetics of flavopiridol in patients enrolled on this study.

SECONDARY OBJECTIVES:

I. To measure pharmacodynamic measurements including effects on cell cycle; down modulation of bcl-2, mcl-1, XIAP, bax, RNA polymerase II phosphorylation; and signaling via the VEGF (VEGF, VEGF-R1, VEGF-R2, HIF-1), NF-Kappa B pathway, and PI3kinase pathway; and correlate with Css and other pharmacokinetic features.

II. To assess drug induced apoptosis of acute leukemia cells in vitro and subsequent relationship to clinical response based upon Css of flavopiridol attained in vivo.

II. To determine if increase in inflammatory cytokines (TNF-alpha, gamma-IFN, IL-6 and IL-8) correlate with pharmacokinetics, pharmacodynamics, laboratory (decrease in serum albumin) and clinical (hypotension observed with the first administration of flavopiridol) parameters of treatment.

OUTLINE: This is a dose-escalation study. Patients are stratified according to age group (adult [≥ 18 years] vs pediatric [1-17 years]).

Patients receive flavopiridol intravenously (IV) over 30 minutes followed by a 4-hour infusion on days 1-3. Treatment repeats every 21 days for up to 6 courses in the absence of unacceptable toxicity or disease progression. Cohorts of 3-6 patients receive escalating doses of flavopiridol until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity.

Patients are followed up every 2 months for 1 year and then every 6 months for 4 years. ;


Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms

  • Adult Acute Basophilic Leukemia
  • Adult Acute Eosinophilic Leukemia
  • Adult Acute Megakaryoblastic Leukemia (M7)
  • Adult Acute Minimally Differentiated Myeloid Leukemia (M0)
  • 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 Inv(16)(p13;q22)
  • Adult Acute Myeloid Leukemia With t(16;16)(p13;q22)
  • Adult Acute Myeloid Leukemia With t(8;21)(q22;q22)
  • Adult Acute Myelomonocytic Leukemia (M4)
  • Adult Erythroleukemia (M6a)
  • Adult Pure Erythroid Leukemia (M6b)
  • Blast Crisis
  • Blastic Phase Chronic Myelogenous Leukemia
  • Hypereosinophilic Syndrome
  • Leukemia
  • Leukemia, Erythroblastic, Acute
  • Leukemia, Lymphoid
  • Leukemia, Megakaryoblastic, Acute
  • Leukemia, Monocytic, Acute
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive
  • Leukemia, Myeloid
  • Leukemia, Myeloid, Acute
  • Leukemia, Myelomonocytic, Acute
  • Leukemia, Myelomonocytic, Chronic
  • Precursor Cell Lymphoblastic Leukemia-Lymphoma
  • Recurrent Adult Acute Lymphoblastic Leukemia
  • Recurrent Adult Acute Myeloid Leukemia
  • Relapsing Chronic Myelogenous Leukemia

NCT number NCT00101231
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Terminated
Phase Phase 1
Start date October 2004

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