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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT01238146
Other study ID # NCI-2011-02536
Secondary ID OSU-10040U01CA07
Status Withdrawn
Phase Phase 1/Phase 2
First received November 9, 2010
Last updated June 5, 2013
Start date October 2010

Study information

Verified date June 2013
Source National Cancer Institute (NCI)
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

This phase I/II trial is studying the side effects and the best dose of obatoclax mesylate when given together with rituximab and bendamustine hydrochloride to see how well it works compared with rituximab and bendamustine hydrochloride alone in treating patients with relapsed or refractory non-Hodgkin lymphoma. Obatoclax mesylate may stop the growth of cancer cells by blocking some of the proteins needed for cell growth. Monoclonal antibodies, such as rituximab, can block cancer growth in different ways. Some find cancer cells and help kill them or carry cancer-killing substances to them. Others interfere with the ability of cancer cells to grow and spread. Drugs used in chemotherapy, such as bendamustine hydrochloride, also work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving obatoclax mesylate together with rituximab and bendamustine hydrochloride may kill more cancer cells


Description:

PRIMARY OBJECTIVES:

I. To determine the dose-limiting toxicity (DLT) and maximum-tolerated dose (MTD) of the combination of obatoclax mesylate, rituximab, and bendamustine hydrochloride in patients with relapsed or refractory, indolent, B-cell non-Hodgkin lymphoma (phase I).

II. To define the qualitative and quantitative toxicities of the combination of obatoclax mesylate, rituximab, and bendamustine (phase I).

III. To detect an improvement in median progression-free survival (PFS) from 6 to 12 months with the addition of obatoclax mesylate to rituximab and bendamustine hydrochloride in patients with indolent B-cell non-Hodgkin lymphoma (phase II).

SECONDARY OBJECTIVES:

I. To determine the overall objective response rate to the combination of obatoclax mesylate, rituximab, and bendamustine versus rituximab and bendamustine hydrochloride in patients with relapsed or refractory, indolent, B-cell non-Hodgkin lymphoma.

II. To characterize two-year PFS of patients with indolent B-cell non-Hodgkin lymphoma receiving obatoclax mesylate, rituximab, and bendamustine hydrochloride versus rituximab and bendamustine hydrochloride.

III. To assess the pharmacokinetics of obatoclax mesylate in patients with relapsed or refractory, indolent, B-cell non-Hodgkin lymphoma.

IV. To assess the pharmacokinetics of the combination of bendamustine hydrochloride and obatoclax mesylate in patients with relapsed or refractory, indolent, B-cell non-Hodgkin lymphoma.

V. To determine the effects of the combination of rituximab, bendamustine hydrochloride, and obatoclax mesylate on histone-oligodeoxynucleotide (ODNA) and levels of activated Bax and Bak pro-apoptotic proteins in peripheral blood mononuclear cells and bone marrow aspirate specimens.

VI. To identify associations of genetic polymorphisms in drug-metabolizing enzymes, transporters, or target genes with pharmacokinetics, pharmacodynamics, or clinical outcomes.

OUTLINE: This is a phase I, dose-escalation study of obatoclax mesylate followed by a randomized phase II study.

PHASE I: Patients receive obatoclax mesylate IV over 3 hours on days 1-3, rituximab IV over 4-8 hours on day 1 (day 3 of course 1), and bendamustine hydrochloride IV over 30 minutes on day 1-2 (day 2-3 of course 1). Treatment repeats every 28 days for a maximum of 6 courses in the absence of disease progression or unacceptable toxicity.

PHASE II: Patients are stratified according to prior bendamustine hydrochloride (yes vs no). Patients are randomized to 1 of 2 treatment arms.

ARM I: Patients receive obatoclax mesylate IV over 3 hours on days 1-3, rituximab IV over 4-8 hours on day 1, and bendamustine hydrochloride IV over 30 minutes on days 1-2.

ARM II: Patients receive rituximab and bendamustine hydrochloride as in arm I.

In both arms, treatment repeats every 28 days for up to 6 courses in the absence of disease progression or unacceptable toxicity.

Patients undergo blood and bone marrow sample collection at baseline and periodically during study for pharmacokinetics, pharmacodynamic, and pharmacogenetic studies.

After completion of study therapy, patients are followed up every 3 months for 2 years and then every 6 months for 3 years.


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date
Est. primary completion date April 2012
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Histologically confirmed indolent B-cell non-Hodgkin lymphoma (NHL), including any of the following subtypes recognized by WHO classification:

- Marginal zone lymphoma

- Lymphoplasmacytic lymphoma

- Follicular lymphoma

- Mantle cell lymphoma

- Transformed lymphoma from a low-grade, indolent NHL allowed provided patient has received = 1 prior therapy for indolent disease

- Must have received = 1 prior therapy

- Relapsed disease after autologous or allogeneic stem cell transplantation (SCT) allowed (phase I)

- No relapse after allogeneic SCT (phase II)

- No known CNS lymphoma

- ECOG performance status 0-2

- ANC = 1,000/µL

- Platelet count = 50,000/µL

- Total bilirubin = 1.5 times upper limit of normal (ULN)

- AST and ALT = 2.5 times ULN

- Creatinine = 2.0 mg/dL OR creatinine clearance = 50 mL/min

- Not pregnant or nursing

- Fertile patients must use effective contraception prior to and for the duration of study participation

- No active hepatitis B infection

- Patients with a history of hepatitis B (surface antigen or core antibody positive) must take lamivudine or equivalent during study therapy

- No history of documented human anti-globulin antibodies, or a history of allergic reactions attributed to compounds of similar chemical or biologic composition to rituximab, bendamustine hydrochloride, or obatoclax mesylate

- No uncontrolled intercurrent illness including, but not limited to, any of the following:

- Ongoing or active infection

- Symptomatic congestive heart failure

- Unstable angina pectoris

- Cardiac arrhythmia

- Psychiatric illness and/or social situations that would limit compliance with study requirements

- HIV infection allowed provided patient meets the following criteria:

- No evidence of co-infection with hepatitis B or C

- CD4 cell count = 400/mm³

- No evidence of resistant strains of HIV

- HIV viral load = 10,000 copies HIV RNA/mL for patients not on anti-HIV combination antiretroviral therapy OR HIV viral load = 50,000 copies HIV RNA/mL for patients on anti-HIV therapy

- No history of AIDS-defining conditions

- No active secondary malignancy except for non-melanomatous skin cancer

- No other concurrent investigational agents

- Prior bendamustine hydrochloride allowed provided patient has completed a bendamustine-containing regimen within the past 6 months and achieved a partial response or better

- More than 4 weeks since prior chemotherapy or radiotherapy (6 weeks for nitrosoureas or mitomycin C) and recovered

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
bendamustine hydrochloride
Given IV
obatoclax mesylate
Given IV
Biological:
rituximab
Given IV

Locations

Country Name City State
United States Arthur G. James Cancer Hospital and Solove Research Institute at Ohio State University Medical Center Columbus Ohio

Sponsors (1)

Lead Sponsor Collaborator
National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Maximum tolerable dose, defined as the dose level beneath which 2 or more of 6 patients experience DLT (phase I) Graded using CTCAE version 4 criteria. DLTs are defined as grade 3-4 neutropenia or thrombocytopenia that persists beyond day 42; grade 4 febrile neutropenia or infection; grade 3 febrile neutropenia or infection that fails to resolve within 7days, grade 3-4 somnolence, ataxia, or confusion that requires inpatient admission on day 1 for observation and prevents patient discharge from outpatient clinic, or other grade 3-4 non-hematologic toxicity excluding infection. 28 days Yes
Primary Change in median progression-free survival (PFS) (phase II) Estimated using the method of Kaplan-Meier. From 6 to 12 months No
Secondary Overall objective response rate (phase II) 95% confidence intervals will be provided. Up to 3 years No
Secondary PFS (phase II) Estimated using the method of Kaplan-Meier. From the date of start of therapy to disease progression or death, whichever occurs first, assessed at 2 years No
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