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Diffuse Large B-Cell Lymphoma

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BB 1101

Belinostat

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Belinostat administered by vein on Days 1 - 2 of a 21-day cycle. Rituximab administered by vein on Day 2. Cisplatinum administered by vein on Day 2. Cytarabine administered by vein on Day 3 during the initial cohorts, and on Day 2 in the cohort of modified DHAP scheduling. Ciprofloxacin 500 mg twice daily for 10 days and Fluconazole 100 mg daily for 10 days may be utilized at the discretion of the treating physician.

Dose Escalation Phase Starting Dose: 200 mg/m2/d by vein on Days 1 and 2 of a 21 day cycle.

Dose Expansion Starting Dose: Maximum tolerated dose from Dose Escalation Phase.

Dose Escalation and Dose Expansion Phases: 375 mg/m2 by vein on Day 2 of a 21 day cycle.

Dose Escalation and Dose Expansion Phases: 100 mg/m2 by vein on Day 2 of a 21 day cycle

Dose Escalation Phase: 2 g/m2 by vein on Day 3 of a 21 day cycle. Two doses given every 12 hours.

Dose Expansion Phase: 2g/m2 by vein on Day 2 of a 21 day cycle. Two doses given every 12 hours.

Dose Escalation and Dose Expansion Phases: 40 mg by mouth on Days 2 - 5 of a 21 day cycle.

Jason R. Westin, MD

The goal of this clinical research study is to find the highest tolerable dose of belinostat that can be combined with standard chemotherapy drugs (rituximab, cisplatin, cytarabine, and dexamethasone) in patients with relapsed or refractory DLBCL who are eligible for an autologous stem cell transplant (a transplant of the patient's own stem cells). The safety of the study drug will also be studied.

Study Groups:

If participant is found to be eligible to take part in this study, they will be assigned to a dose level of belinostat based on when they join this study. Up to 4 dose levels of belinostat will be tested. Between 3-6 participants will be enrolled at each dose level. The first group of participants will receive the lowest dose level. Each new group will receive a higher dose than the group before it, if no intolerable side effects were seen. This will continue until the highest tolerable dose of belinostat is found.

All participants will receive the same dose level of the standard chemotherapy drugs.

Study Drug Administration:

Participant will receive belinostat with standard chemotherapy for up to two 21-day cycles.

Participant will receive belinostat by vein on Days 1 and 2 of each cycle. The infusions will last 24 hours.

Participant will receive rituximab and cisplatin by vein on Day 2 of each cycle. Participant will receive cytarabine by vein on Day 2 or 3 of each cycle, depending on when they join this study. Rituximab will be given over 4-5 hours, cisplatin will be given over 3-4 hours, and cytarabine will be given over 1 hour.

Participant will take dexamethasone once a day by mouth on Days 2-5 of both study cycles.

Blood (about 5 tablespoons) and bone marrow will be collected about 10 business days (Monday-Friday) before participant begins receiving belinostat. The blood and bone marrow will be used for peripheral blood mononuclear cell (PBMC) testing. This testing is designed to learn if participant will respond to treatment. To collect a bone marrow biopsy, an area of the hip or other site is numbed with anesthetic, and a small amount of bone marrow is withdrawn through a large needle.

Participant will also receive filgrastim, pegfilgrastim, SMX, valacyclovir, ciprofloxacin and fluconazole to reduce side effects. Participant's study doctor will discuss with them when and how they will take these drugs.

If participant's doctor thinks it is necessary, they will also have a bone marrow biopsy and aspirate performed to check the status of the disease within 4 weeks before they begin receiving belinostat. To collect a bone marrow biopsy/aspirate, an area of the hip or other site is numbed with anesthetic, and a small amount of bone marrow and bone is withdrawn through a large needle.

Study Visits:

Within 5 working/business days before the start of each cycle:

* Participant will have a physical exam.
* Blood (about 4-6 tablespoons) will be drawn for routine tests.

One (1) time a week after the completion of therapy during each cycle, blood (about 4-6 tablespoons) will be drawn for routine tests.

Blood (about 4 tablespoons) will be drawn on Days 1,2, 3, and 21 (+/- 72 hours) of Cycles 1 and 2 for PBMC testing.

Length of Treatment:

Participant may continue taking belinostat combined with chemotherapy for up to 3 cycles. Participant will no longer be able to take the study drugs if the disease gets worse, if intolerable side effects occur, or if they are unable to follow study directions.

Patient's participation on the study will be over after the follow-up visits.

End-of-Dosing Visit:

Within 3 weeks after the start of the last cycle:

* Participant will have a physical exam.
* Blood (about 4-6 tablespoons) will be drawn for routine and PBMC testing.
* Participant will have an FDG-PET/CT scan to check the status of the disease.
* If participant's doctor thinks it is necessary, they may have a bone marrow biopsy and aspirate to check the status of the disease
* If participant's doctor thinks it is necessary, they may have a core needle biopsy to check the status of the disease. To perform a core biopsy, a sample of tissue is removed using a hollow core needle that has a cutting edge.

This is an investigational study. Belinostat is FDA approved to treat T-cell lymphoma. Its use in this study is investigational. The standard chemotherapy drugs are commercially available and FDA approved to treat DLBCL.

Up to 40 participants will be enrolled on this study. All will be enrolled at MD Anderson.

A Phase Ib Study of Belinostat With RDHAP Chemotherapy (Dexamethasone, Cytarabine, Cisplatinum) in Adults With Relapsed or Refractory Diffuse Large B-cell Lymphoma

MTD defined as the highest dose level in which 6 patients have been treated with less than 2 instances of dose limiting toxicity (DLT). DLT defined as an adverse event at least possibly related to study treatment:

1. Any grade 3 or higher non-hematological toxicity possibly related to study medications per National Cancer Institute Common Terminology Criteria for Adverse Events v4.0, with exclusion of grade 3 diarrhea lasting less than 48 hours, grade 3 nausea and/or vomiting lasting less than 48 hours, grade 3 electrolyte abnormalities lasting less than 48 hours, grade 3 creatinine elevation lasting less than 48 hours
2. Any non-hematological toxicity requiring a delay of next cycle of therapy for greater than 14 days;
3. Grade 4 neutropenia which persists for 14 or greater days despite growth factor support.
4. Neutropenic fever incidence closely monitored, but will not be considered a DLT due to known high rate of neutropenic fever with dose adjusted RDHAP (20 - 30%).

ORR rate of Belinostat and RDHAP summarized by frequency and 95% confidence interval. Distribution of time-to-event endpoints including overall survival (OS) and progression free survival (PFS) estimated by method of Kaplan and Meier Analysis. Comparison of time-to-event endpoints by important subgroups made using the log-rank test.

Spectrum Pharmaceuticals, Inc

M.D. Anderson Cancer Center

Spots Global Cancer Trial Database for ciprofloxacin hydrochloride