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Clinical Trial Summary

Phase I trial to study the effectiveness of PS-341 in treating patients who have refractory or relapsed acute myeloid leukemia, acute lymphoblastic leukemia, chronic myeloid leukemia in blast phase, or myelodysplastic syndrome. PS-341 may stop the growth of cancer cells by blocking the enzymes necessary for cancer cell growth


Clinical Trial Description

OBJECTIVES:

I. Determine the maximum tolerated dose of PS-341 in patients with refractory or relapsed acute myeloid leukemia, acute lymphoblastic leukemia, myelodysplastic syndrome, or chronic myeloid leukemia in blast phase.

II. Assess the plasma pharmacology of this drug, its ability to inhibit proteasome function and to accelerate apoptosis in circulating blasts in this patient population.

III. Assess the antileukemic effects of this drug in these patients.

OUTLINE: This is a dose-escalation study.

Patients receive PS-341 IV bolus twice weekly for 4 weeks followed by 2 weeks of rest. Treatment continues for a maximum of 12 courses in the absence of unacceptable toxicity or disease progression.

Cohorts of 2 patients receive escalating doses of PS-341 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose level associated with toxicity probability closest to 0.2 after 30 patients are treated. ;


Study Design

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


Related Conditions & MeSH terms

  • Adult Acute Promyelocytic Leukemia (M3)
  • Anemia
  • Anemia, Refractory, with Excess of Blasts
  • Blast Crisis
  • Blastic Phase Chronic Myelogenous Leukemia
  • Leukemia
  • Leukemia, Lymphocytic, Chronic, B-Cell
  • Leukemia, Lymphoid
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive
  • Leukemia, Myeloid
  • Leukemia, Myeloid, Acute
  • Leukemia, Promyelocytic, Acute
  • Myelodysplastic Syndromes
  • Precursor Cell Lymphoblastic Leukemia-Lymphoma
  • Preleukemia
  • Previously Treated Myelodysplastic Syndromes
  • Recurrent Adult Acute Lymphoblastic Leukemia
  • Recurrent Adult Acute Myeloid Leukemia
  • Refractory Anemia With Excess Blasts
  • Refractory Anemia With Excess Blasts in Transformation
  • Relapsing Chronic Myelogenous Leukemia
  • Syndrome

NCT number NCT00005064
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Completed
Phase Phase 1
Start date February 2000

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