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Vorinostat, Azacitidine, and Gemtuzumab Ozogamicin for Older Patients With Relapsed or Refractory AML

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)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00895934
Enrollment
52
Registered
2009-05-08
Start date
2009-05-31
Completion date
2013-09-30
Last updated
2019-05-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

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), Recurrent Adult Acute Myeloid Leukemia

Brief summary

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.

Detailed description

PRIMARY OBJECTIVES: I. Determine the vorinostat dose with the most favorable efficacy and toxicity when combined with azacitidine and GO. SECONDARY OBJECTIVES: 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 4 and 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.

Interventions

DRUGvorinostat

Given orally

DRUGgemtuzumab ozogamicin

Given intravenously (IV)

DRUGazacitidine

Given IV or subcutaneously (SC)

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Prior morphological diagnosis of acute myeloid leukemia (AML) other then acute promyelocytic leukemia (APL) according to the 2001 WHO criteria; patients with biphenotypic AML are eligible * Need for first salvage chemotherapy for persistent or relapsing disease, defined by standard criteria, after at least one course of conventional chemotherapy * A bone marrow biopsy is not required but should be obtained if the aspirate is dilute, hypocellular, or not aspirable; outside marrow exams performed within the stipulated time period are acceptable if the slides are reviewed at the study institution * Flow cytometric analysis of the marrow aspirate per institutional practice guidelines * Duration of first complete remission (CR1) \< 12 months (or primary resistant disease) * Patients with prior autologous or allogeneic hematopoietic cell transplantation (HCT) if relapse occurs 6-12 months post-transplant * ECOG/WHO/Zubrod performance status of 0-3 within 14 days prior to registration * Off any active therapy for AML except hydroxyurea for at least 14 days prior to study registration, with resolution of all grade 3 and 4 non-hematological toxicities * Willingness to discontinue taking any medications known to cause a risk of Torsades de Pointes * Bilirubin =\< 1.5 x Institutional Upper Limit of Normal (IULN) unless elevation is due to hepatic infiltration by AML, Gilbert's syndrome, or hemolysis (within 7 days prior to registration) * SGOT (AST) and SGPT (ALT) =\< 1.5 x IULN unless elevation is due to hepatic infiltration by AML (within 7 days prior to registration) * Serum creatinine =\< 1.5 x IULN (within 7 days prior to registration) * No clinical or radiographical evidence of heart failure * white blood cell (WBC) \< 25,000/uL within 3 days prior to registration * Patients with symptoms/signs of hyperleukocytosis or WBC \> 100,000/uL can be treated with leukapheresis prior to enrollment * Collection of bone marrow and peripheral blood specimens for correlative studies prior to study treatment is highly recommended; peripheral blood only is acceptable if the peripheral blast count is \> 5,000/uL and \> 50% of total WBC * Must agree to use adequate contraception prior to and during the study * Can understand and sign a written informed consent document; a legally authorized representative can provide consent if the patient is unable

Exclusion criteria

* Remission or second or later relapse * Diagnosis of another malignancy, unless diagnosed at least 2 years earlier and disease-free for at least 6 months after completion of curative intent therapy except: * Treated non-melanoma skin cancer, in situ carcinoma, or cervical intraepithelial neoplasia, if definitive treatment has been completed * Organ-confined prostate cancer with no evidence of recurrent or progressive disease based on prostate-specific antigen (PSA) values if hormonal therapy has been initiated or a radical prostatectomy was performed * Refractory/relapsing blast crisis of chronic myeloid leukemia (CML) * Prior anti-AML treatment with GO, histone deacetylase (HDAC) inhibitor (including the use of valproic acid for control of seizure activity or other purposes), or demethylating agent * Known hypersensitivity to GO, vorinostat, azacitidine, or mannitol * Possible central nervous system (CNS) involvement with leukemia unless a lumbar puncture confirms no leukemic blasts in the cerebralspinal fluid (CSF) * HIV-positive patients with cluster of differentiation (CD)4 count is \< 200 cells/uL or if AIDS-related complications * Pregnancy; breastfeeding should be discontinued if the mother is treated with vorinostat, azacitidine, and GO * Uncontrolled systemic infection, despite appropriate antibiotics or other treatment) * Receipt of any other investigational agents

Design outcomes

Primary

MeasureTime frame
Number of Participants With Dose-limiting Toxicity (Phase I)42 days
Number of Participants With Dose-limiting Toxicity After the Vorinostat DoseUp to 3 years

Secondary

MeasureTime frameDescription
Number of Participants With Complete Remissionup to 3 yearsEfficacy Defined as Best Response Achieved During Study Treatment Measured by Complete Remission (CR) Rate
Disease Relapseup to 2 years

Countries

United States

Participant flow

Participants by arm

ArmCount
Phase 1 Dose-Finding Cohorts 1-3
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. vorinostat: Given orally gemtuzumab ozogamicin: Given IV azacitidine: Given IV or SC laboratory biomarker analysis: Correlative studies
9
Phase 2/Selected Dose
Azacitidine 75 mg/m2 SC or IV on days 1-7, vorinostat 400 mg qd po on days 1-9, gemtuzumab ozogamicin 3 mg/m2 IV on days 4 and 8. Includes cohort 4 from the Phase 1 portion of the study. Treatment repeats every 21 days for up to 12 courses in the absence of disease progression or unacceptable toxicity.
43
Total52

Baseline characteristics

CharacteristicPhase 1 Dose-Finding Cohorts 1-3Phase 2/Selected DoseTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants22 Participants27 Participants
Age, Categorical
Between 18 and 65 years
4 Participants21 Participants25 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants1 Participants4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants40 Participants46 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants2 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants6 Participants6 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants2 Participants2 Participants
Race (NIH/OMB)
White
8 Participants34 Participants42 Participants
Region of Enrollment
United States
9 Participants43 Participants52 Participants
Sex: Female, Male
Female
5 Participants18 Participants23 Participants
Sex: Female, Male
Male
4 Participants25 Participants29 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
9 / 1543 / 43
serious
Total, serious adverse events
6 / 1513 / 43

Outcome results

Primary

Number of Participants With Dose-limiting Toxicity After the Vorinostat Dose

Time frame: Up to 3 years

ArmMeasureValue (NUMBER)
Dose 1Number of Participants With Dose-limiting Toxicity After the Vorinostat Dose4 participants
Dose 2Number of Participants With Dose-limiting Toxicity After the Vorinostat Dose18 participants
Primary

Number of Participants With Dose-limiting Toxicity (Phase I)

Time frame: 42 days

ArmMeasureValue (NUMBER)
Dose 1Number of Participants With Dose-limiting Toxicity (Phase I)0 participants
Dose 2Number of Participants With Dose-limiting Toxicity (Phase I)0 participants
Dose 3Number of Participants With Dose-limiting Toxicity (Phase I)0 participants
Dose 4Number of Participants With Dose-limiting Toxicity (Phase I)1 participants
Secondary

Disease Relapse

Time frame: up to 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1Disease Relapse5 Participants
Secondary

Number of Participants With Complete Remission

Efficacy Defined as Best Response Achieved During Study Treatment Measured by Complete Remission (CR) Rate

Time frame: up to 3 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1Number of Participants With Complete Remission18 Participants

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026