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About
This phase I trial is studying the side effects and best dose of vorinostat when given together with decitabine in treating patients with advanced solid tumors or relapsed or refractory non-Hodgkin's lymphoma, acute myeloid leukemia, acute lymphocytic leukemia, or chronic myelogenous leukemia.
Vorinostat may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as decitabine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving vorinostat together with decitabine may kill more cancer cells.
Full description
PRIMARY OBJECTIVES:
I. Establish the maximum tolerated dose and recommended phase II dose of vorinostat in conjunction with decitabine in patients with advanced solid tumors or relapsed or refractory non-Hodgkin's lymphoma, acute myeloid leukemia, acute lymphocytic leukemia, or chronic myelogenous leukemia in blast crisis.
SECONDARY OBJECTIVES:
I. Identify the minimal effective dose of vorinostat in conjunction with decitabine that will lead to DNA demethylation, histone acetylation, and gene reactivation with tolerable toxicity in these patients.
II. Determine the pharmacokinetic profiles of vorinostat and decitabine in these patients. Correlate pharmacokinetic profiles of vorinostat and decitabine with toxicity and biological activity in these patients.
III. Assess the antitumor activity of vorinostat and decitabine in these patients.
OUTLINE: This is a parallel group, multicenter, dose-escalation study of vorinostat. Patients are stratified according to disease (solid tumors or non-Hodgkin's lymphoma [NHL] vs hematological malignancies).
Patients receive 1 of 2 dosing regimens.
Regimen 1 (sequential dosing): Patients receive oral vorinostat two or three times daily on days 6-21 or days 6-12 (patients with solid tumors or NHL only) and decitabine IV over 1 hour on days 1-5. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Regimen 2 (concurrent dosing): Patients receive oral vorinostat two or three times daily on days 1-21, days 1-14 (patients with hematological malignancies only), or two times daily on days 1-12 (patients with solid tumors or NHL only) and decitabine IV over 1 hour on days 1-5.
Courses repeat every 28 days or 21 days (patients with hematological malignancies only) in the absence of disease progression or unacceptable toxicity. In both groups, cohorts of 3-6 patients receive escalating doses of vorinostat 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. The dose level just below MTD would be declared the recommended phase II dose (RPTD). Up to 10 patients are treated at the RPTD. After completion of study treatment, patients are followed at 4 weeks.
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Inclusion and exclusion criteria
Inclusion Criteria:
Diagnosis of 1 of the following:
Confirmed relapsed or refractory acute myeloid leukemia (AML) or acute lymphoblastic leukemia (ALL) or chronic myelogenous leukemia in blast crisis (CML-BC)
Histologically or cytologically confirmed relapsed or refractory non-Hodgkin's lymphoma (NHL)
Histologically confirmed solid tumor that is metastatic or unresectable or for which standard curative or palliative measures do not exist or are no longer effective
Patients with AML, ALL, or CML-BC who have cerebral spinal fluid involvement may be included
No known brain metastases in patients with solid tumors or NHL
ECOG performance status 0-2
Karnofsky 60-100%
Life expectancy > 12 weeks for patients with solid tumors (including non-Hodgkin's lymphoma) and 6 weeks for patients with hematological malignancies
Patients with solid tumors (including NHL) must also have normal marrow function as defined below:
Creatinine ≤ 150 μmol/L
Creatinine clearance ≥ 60 mL/min
Bilirubin normal
AST/ALT ≤ 2.5 times upper limit of normal (ULN)
Women of child-bearing potential and men must agree to use adequate contraception (barrier method of birth control or abstinence) prior to study entry and for the duration of study participation
Not pregnant or nursing
Negative pregnancy test
No history of allergic reactions attributed to compounds of similar chemical or biologic composition to vorinostat or other agents used in study
Able to take oral medications
Patients who have a clinical or radiological diagnosis of bowel obstruction are ineligible
No ongoing or active infection
No symptomatic congestive heart failure
No unstable angina pectoris
No cardiac arrhythmia
No psychiatric illness/social situations that would limit compliance with study requirements
No other uncontrolled intercurrent illness
No limitation on the number or types of prior therapy
At least 3 weeks since prior radiotherapy, chemotherapy (6 weeks for nitrosoureas or mitomycin C), or molecularly targeted agents
At least 2 weeks since prior valproic acid or any other histone deacetylase inhibitor
Must have recovered from prior therapy
Patients with hematological malignancies may receive hydroxyurea until 24 hours prior to starting study medications
Previous surgery is permitted provided that wound healing has occurred
No prior decitabine
No other concurrent investigational agents
No other concurrent investigational or commercial agents or therapies administered with the intent to treat the patient's malignancy
No HIV-positive patients receiving combination antiretroviral therapy
No concurrent prophylactic hematopoietic growth factors (e.g. filgrastim [G-CSF], sargramostim [GM-CSF], thrombopoietin, or epoetin alfa)
Primary purpose
Allocation
Interventional model
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80 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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