Obatoclax, Fludarabine, and Rituximab in Treating Patients With Previously Treated Chronic Lymphocytic Leukemia

Part of paid clinical trials in Boston, Massachusetts.

Sponsor
National Cancer Institute (NCI)
Study ID
NCT00612612
Phase
PHASE1
Status
Terminated

Conditions

  • B-cell Chronic Lymphocytic Leukemia
  • Leukemia
  • Prolymphocytic Leukemia
  • Refractory Chronic Lymphocytic Leukemia
  • Stage I Chronic Lymphocytic Leukemia
  • Stage II Chronic Lymphocytic Leukemia
  • Stage III Chronic Lymphocytic Leukemia
  • Stage IV Chronic Lymphocytic Leukemia

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • obatoclax mesylate — DRUG
    Given IV
  • fludarabine phosphate — DRUG
    Given IV
  • rituximab — BIOLOGICAL
    Given IV
  • laboratory biomarker analysis — OTHER
    Correlative study

Study Details

Obatoclax may stop the growth of chronic lymphocytic leukemia by blocking blood flow to the cancer and by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as fludarabine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as rituximab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help kill them or carry cancer-killing substances to them. Giving obatoclax together with fludarabine and rituximab may kill more cancer cells. This phase I trial is studying the side effects and best dose of obatoclax when given together with fludarabine and rituximab in treating patients with B-cell chronic lymphocytic leukemia.

Key Dates

Start date
Jan 31, 2008
Status verified
Sep 2013
Primary completion
Jul 31, 2013

Study Design

Enrollment
28 participants (actual)
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT

Arms

  • Experimental: Treatment (obatoclax mesylate, fludarabine, rituximab)
    Patients receive obatoclax mesylate IV over 3 hours on days 1 and 3, fludarabine IV over 20-30 minutes on days 1-5, and rituximab IV over 4 hours on day 1 (days 1 and 3 of course 1 only). Treatment repeats every 28 days for up to 6 courses in the absence of disease progression or unacceptable toxicity. Patients undergo peripheral blood collection for correlative studies. Samples are analyzed for expression of pro- and anti-apoptotic Bcl-2 family members by western blot; apoptosis induction by measurement of lymphocyte count, Annexin V staining, and Caspase and PARP cleavage; activated Bax by immunoprecipitation; and Bax promoter polymorphism by PCR amplification and direct sequencing.

Primary Outcome Measure

Maximum tolerated dose of obatoclax mesylate [ Time Frame: 28 days ]

Locations (1)

FacilityCityStateZIPSite coordinators
Dana-Farber Cancer InstituteBostonMassachusetts02115-

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