Clinical Trial: Vorinostat and Idarubicin in Treating Patients With Relapsed or Refractory Leukemia or Myelodysplastic Syndromes

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Phase 1 Study of Suberoylanilide Hydroxamic Acid (Vorinostat, SAHA) in Combination With Idarubicin in Relapsed or Refractory Leukemia

Brief Summary: This randomized phase I trial is studying the side effects and best dose of vorinostat when given together with idarubicin in treating patients with relapsed or refractory leukemia or myelodysplastic syndromes. Drugs used in chemotherapy, such as vorinostat and idarubicin, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Vorinostat may also stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving vorinostat together with idarubicin may kill more cancer cells.

Detailed Summary:

OBJECTIVES:

I. Determine the maximum tolerated dose and dose-limiting toxicities of vorinostat (SAHA) in combination with standard-dose idarubicin in patients with relapsed or refractory acute myeloid leukemia, acute lymphocytic leukemia, myelodysplastic syndromes, acute promyelocytic leukemia, or chronic myelogenous leukemia in blastic phase.

II. Describe the clinical activity of this regimen in these patients. III. Determine the in vivo molecular effects of this regimen, including the effects on DNA topoisomerase IIα mRNA expression and on the induction of γH2AX, histone H3 and H4 acetylation, as well as changes in the gene expression profile.

IV. Determine the pharmacokinetic characteristics of this regimen in these patients.

OUTLINE:

This is a randomized, dose-escalation study of vorinostat (SAHA). Patients are randomized to 1 of 2 treatment arms.

ARM I: Patients receive oral SAHA three times daily on days 1-14 and idarubicin IV over 15 minutes once daily on days 1-3. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity.*

ARM II: Patients receive oral SAHA three times daily and idarubicin IV over 15 minutes once daily on days 1-3. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity.*

Note: *Patients completing 6 courses of therapy or who reach the maximum cumulative dose of idarubicin or an equivalent anthracycline and achieve clinical benefit may continue treatment with SAHA alone 3 times daily on days
Sponsor: National Cancer Institute (NCI)

Current Primary Outcome: Maximum-tolerated dose (MTD) of vorinostat determined by dose-limiting toxicities (DLT) as measured by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v.3.0 [ Time Frame: 21 days ]

Original Primary Outcome:

Current Secondary Outcome:

Original Secondary Outcome:

Information By: National Cancer Institute (NCI)

Dates:
Date Received: May 30, 2006
Date Started: March 2006
Date Completion:
Last Updated: September 27, 2013
Last Verified: September 2013