Vorinostat, Azacitidine, and Gemtuzumab Ozogamicin in Treating Older Patients With Relapsed or Refractory Acute Myeloid Leukemia
The purpose of this study is to test the safety of vorinostat (Zolinza) and azacitidine (Vidaza) when combined with gemtuzumab ozogamicin (GO) at different dose levels. These drugs increase the effect of GO against leukemia cells in the test tube, but we don't know yet whether they also increase the anti-leukemia effect of GO in people.
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 Del(5q)
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)
Recurrent Adult Acute Myeloid Leukemia
Drug: gemtuzumab ozogamicin
Other: laboratory biomarker analysis
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||A Phase 1/2 Study of Vorinostat (Zolinza®) in Combination With Gemtuzumab Ozogamicin (Mylotarg®) and Azacitidine (Vidaza®) in Patients 50 Years of Age and Older With Relapsed/Refractory Non-APL Acute Myeloid Leukemia (AML)|
- Dose-limiting toxicity and maximum tolerated dose of vorinostat (Phase I) [ Time Frame: 42 days ] [ Designated as safety issue: Yes ]
- Efficacy defined as best response achieved during study treatment measured by CR rate (Phase II) [ Time Frame: Up to 3 years ] [ Designated as safety issue: No ]
- Relapse-free survival (RFS) [ Time Frame: Up to 3 years ] [ Designated as safety issue: No ]Estimated using Kaplan-Meier method. Logistic regression will be used as a tool to assess the association of various factors with the probability of response, recognizing that the power to detect statistically significant associations will be limited due to the sample size (and expected number of responses). The impact of remission and post-remission therapy on RFS will be assessed using Cox regression with remission and therapy treated as time-dependent covariates.
|Study Start Date:||May 2009|
|Primary Completion Date:||March 2013 (Final data collection date for primary outcome measure)|
Experimental: Treatment (vorinostat, azacitidine, gemtuzumab ozogamicin)
Patients receive vorinostat PO on days 1-9, azacitidine SC or IV over 10-40 minutes on days 1-7, and gemtuzumab ozogamicin IV over 2 hours on day 8. Treatment repeats every 21 days for up to 12 courses in the absence of disease progression or unacceptable toxicity.
Other Names:Drug: gemtuzumab ozogamicin
Other Names:Drug: azacitidine
Given IV or SC
Other Names:Other: laboratory biomarker analysis
I. Determine the vorinostat dose with the most favorable efficacy and toxicity when combined with azacitidine and GO.
I. Describe the complete response (CR)/ CR with inadequate recovery (Cri) rate after a total of 6 cycles of therapy.
II. Describe the disease-free survival of patients that achieve CR/CRi. III. Determine whether acute myeloid leukemia (AML) characteristics associated with preclinical GO efficacy predict for clinical benefit, and assess whether differentiation-inducing agents modulate these characteristics and lower the apoptotic threshold for calicheamicin-gamma1-induced cytotoxicity (in vitro correlative and mechanistic studies).
OUTLINE: This is phase I, dose-escalation study of vorinostat followed by a phase II study.
Patients receive vorinostat orally (PO) on days 1-9, azacitidine subcutaneously (SC) or intravenously (IV) over 10-40 minutes on days 1-7, and gemtuzumab ozogamicin IV over 2 hours on day 8. Treatment repeats every 21 days for up to 12 courses in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up every 3 months for 3 years.
|United States, California|
|Stanford University Hospitals and Clinics|
|Stanford, California, United States, 94305|
|United States, Washington|
|Harrison Bremerton Hematology and Oncology|
|Bremerton, Washington, United States, 98310|
|Fred Hutchinson Cancer Research Center/University of Washington Cancer Consortium|
|Seattle, Washington, United States, 98109|
|University of Washington Medical Center|
|Seattle, Washington, United States, 98195|
|Principal Investigator:||Roland Walter||Fred Hutchinson Cancer Research Center/University of Washington Cancer Consortium|