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CompletedNCT00472849Updated Nov 26, 2013Results posted

Oxaliplatin, Fludarabine, Cytarabine, and Rituximab in Patients With Richter's Transformation and Leukemias

A Phase 1/2 interventional study of Oxaliplatin and Fludarabine in Richter's Transformation and Leukemia, sponsored by M.D. Anderson Cancer Center. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2013-11-26.

Sponsored by M.D. Anderson Cancer Center · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
92
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical research study is to find the highest tolerable dose of fludarabine and cytarabine that can be given in combination with oxaliplatin and rituximab in the treatment of chronic lymphocytic leukemia (CLL), prolymphocytic leukemia, or Richter's transformation. Once the highest tolerable dose for this drug combination is found, the next goal of the study will be to find out if this combination therapy is effective in shrinking or slowing the growth of these diseases.

Read the detailed description

Cytarabine is designed to insert itself into DNA (the genetic material of cells) and stop the DNA from repairing itself.

Oxaliplatin is designed to kill cancer cells by damaging their DNA.

Fludarabine is designed to make cancer cells less able to repair damaged DNA. This may increase the likelihood of the cells dying.

Rituximab is designed to attach to lymphoma cells, which may cause them to die.

During the Phase I portion of the study, researchers will be testing different doses of the study drug combination. Oxaliplatin and rituximab will be given at the same dose level. However, fludarabine and cytarabine will be given daily for 2 days to the first 3 participants, daily for 3 days to the next 3 participants, and daily for 4 days to the next 3 participants. Although the plan is to treat 3, up to 6 participants may be treated in each of these groups.

If participants who receive the fludarabine and cytarabine for 2 or 3 days do not experience intolerable side effects, after the second cycle they may receive the next higher dose (an additional day of fludarabine and cytarabine) for the following cycles.

Once the highest tolerated dose of fludarabine and cytarabine given in combination with oxaliplatin and rituximab is found, the next group of participants entering the study will take part in the Phase II portion of the study. Participants in the Phase II portion will receive the study drugs at the highest tolerated dose found in the Phase I portion of the study. The goal of this part of the study is to look at how effective the drug combination is in treating patients with Richter's syndrome, prolymphocytic leukemia, and aggressive, relapsed, or refractory CLL. The same dose levels for all 4 drugs will be used throughout the Phase II portion of the study, unless intolerable side effects occur. In that case, the dose may be lowered or the treatment may be stopped.

  • Each cycle will be repeated every 4-6 weeks, depending on your blood counts and your medical condition.
  • You will receive oxaliplatin through a needle in your vein over about 2 hours on Days 1-4 of every 28-day study "cycle."
  • You will receive rituximab by vein over about 4-6 hours on Day 3 of the first cycle and on Day 1 on every cycle after that.
  • Starting on Day 2, you will receive fludarabine by vein over about 30 minutes and cytarabine by vein over about 2 hours for 2, 3, or 4 days.
  • On Day 6, you will receive peg-filgrastim subcutaneously (through a needle just under your skin) to help increase your white blood cell count.
  • On the days that you receive the study drugs, you will also be given fluids (such as saline) by vein to keep you from becoming dehydrated. If you receive the treatment as an outpatient, this means that the visit may take up to 8 hours.
  • Additional drugs will be given before each dose of rituximab to lower the risk of side effects. If side effects do occur, rituximab may have to be stopped until the side effects go away, at which point the drug may be restarted. This may make your time in the outpatient area longer.
  • The first study cycle will be given at MD Anderson. Depending on your response, up to 5 more cycles will be given either at MD Anderson or at home with your regular doctor.
  • Every 1-2 weeks, blood samples (about 1 teaspoon each) will be drawn for routine tests.
  • At the end of every cycle, you will have a physical exam and blood (about 1 teaspoon) will be drawn to determine whether you should receive another cycle.
  • You will have a bone marrow biopsy/aspirate at the end of the 3rd and 6th cycles. The biopsy at the end of cycle 3 will be used to determine if you are responding to treatment and will determine whether you should continue to receive the study drug combination.

You may remain on study for up to 6 cycles. You will be taken off-study early if the disease gets worse or intolerable side effects occur.

Once you are no longer receiving treatment, you will have an end-of-treatment visit. At this visit, you will have a physical exam and blood (about 1 teaspoon) will be drawn for routine tests.

If you achieve remission, after your last cycle is complete, you will have blood drawn (about 2 teaspoons each) every 3 months for routine tests. These tests will continue for as long as you are in remission.

This is an investigational study. Fludarabine, cytarabine, oxaliplatin, and rituximab are all FDA approved and commercially available. The use of these drugs together is investigational. Up to 102 patients will take part in this multicenter study. Up to 90 will be enrolled at The University of Texas (UT) MD Anderson Cancer Center.

02

Conditions studied

  • Richter's Transformation
  • Leukemia

Keywords

  • OFAR 2
  • Oxaliplatin
  • Fludarabine
  • Cytarabine
  • Ara-C
  • Rituximab
  • Richter's Transformation
  • Prolymphocytic Leukemia
  • B-Cell Chronic Lymphocytic Leukemia
  • Leukemia
  • CLL
03

In context

Leukemia

5,441 studies on the registry are indexed under Leukemia; 636 are open to participants now.

This study's enrollment of 92 is above the median of 38 across 4,247 interventional studies indexed under Leukemia.

Browse Leukemia studies →

Lead sponsor

M.D. Anderson Cancer Center is the lead sponsor of 2,999 studies on the registry; 581 are open to participants now.

Of its 599 completed or terminated interventional studies of FDA-regulated products, 402 (67%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • All patients with histologically or cytologically confirmed Richter's transformation, prolymphocytic leukemia, aggressive, or relapsed/refractory B-cell chronic lymphocytic leukemia are eligible for this protocol.
  • Patients must be 18 years of age or older.
  • Patients must have a performance status of 0-2 (Zubrod scale).
  • Patients must have adequate renal function (serum creatinine \<= 2 mg/dL or creatinine clearance > 50 mL/min). Patients with renal dysfunction due to organ infiltration by disease may be eligible after discussion with the principal investigator (PI) and consideration of appropriate dose adjustments.
  • Patients must have adequate hepatic function (bilirubin \<= 2 mg/dl; aspartate aminotransferase (AST or SGOT) and alanine aminotransferase (ALT or SGPT) \< 2.5 * the upper limit of normal (ULN) for the reference lab unless due to leukemia or congenital hemolytic disorder [for bilirubin]). Patients with hepatic dysfunction due to organ infiltration by disease may be eligible after discussion with the PI and consideration of appropriate dose adjustments.
  • Female patients of childbearing potential (including those \< 1 year post-menopausal) and male patients must agree to use contraception.
  • Patients must sign an informed consent indicating that they are aware of the investigational nature of this study.
  • Patients must have platelet counts > 20,000, unless lower counts are due to disease involvement or autoimmune disorders.

Exclusion criteria

Exclusion Criteria:

  • Untreated or uncontrolled life-threatening infection.
  • Oxaliplatin, fludarabine, cytarabine or rituximab intolerance.
  • Pregnancy or lactation.
  • Chemotherapy and/or radiation therapy within 4 weeks.
  • Medical condition, including mental illness or substance abuse, deemed by the investigator to be likely to interfere with a patient's ability to sign informed consent, cooperate and participate in the study, or interfere with the interpretation of the results.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
92 participants (actual)

Study arms

  • Experimental
    OFAR (Phase I)

    Oxaliplatin starting dose 30 mg/m\^2/day over 2 hours on days 1-4 before Fludarabine. Fludarabine 30 mg/m\^2 daily intravenous (IV) over 30 minutes on days 2-3, 2-4, or 2-5 until maximum tolerated dose reached. Cytarabine 500 mg/m\^2 daily IV, 2-hour infusion starting 4 hours after first fludarabine dose started, on days 2-3, 2-4, or 2-5, until maximum tolerated dose (MTD) reached. Rituximab 375 mg/m\^2 IV on day 3, course 1 (on day 1, subsequent courses). Pegfilgrastim 6 mg subcutaneously once per chemotherapy cycle, approximately 24 hours after last dose of chemotherapy.

    Drug: Oxaliplatin · Drug: Fludarabine · Drug: Cytarabine · Drug: Rituximab · Drug: Pegfilgrastim

  • Experimental
    OFAR MTD (Phase II)

    Oxaliplatin 25 mg/m\^2 IV per day MTD on days 1-4 before Fludarabine. Fludarabine 30 mg/m\^2 daily IV over 30 minutes on days 2-4. Cytarabine 500 mg/m\^2 daily IV, 2-hour infusion starting 4 hours after fludarabine dose started, on days 2-4. Rituximab 375 mg/m\^2 IV on day 3, course 1 (on day 1, subsequent courses). Pegfilgrastim 6 mg subcutaneously once per chemotherapy cycle, approximately 24 hours after last dose of chemotherapy.

    Drug: Oxaliplatin · Drug: Fludarabine · Drug: Cytarabine · Drug: Rituximab · Drug: Pegfilgrastim

Interventions

  • DrugOxaliplatin

    Oxaliplatin 30 mg/m\^2/day, over approximately 2 hours, before fludarabine is started, on days 1-4.

  • DrugFludarabine

    Fludarabine 30 mg/m\^2 daily IV, over approximately 30 minutes, on days 2-3, 2-4, or 2-5 until maximum tolerated dose is reached.

    Also known as: Fludara

  • DrugCytarabine

    Cytarabine 500 mg/m\^2 daily IV, 2-hour infusion starting 4 hours after first fludarabine dose is started, on days 2-3, 2-4, or 2-5, until maximum tolerated dose is reached.

    Also known as: Cytosar, Ara-C

  • DrugRituximab

    Rituximab 375 mg/m\^2 IV on day 3, course 1 (on day 1, subsequent courses).

    Also known as: Rituxan

  • DrugPegfilgrastim

    6 mg subcutaneously once per chemotherapy cycle, approximately 24 hours after last dose of chemotherapy

    Also known as: Neulasta

06

What researchers measure

Primary outcomes

  1. Maximum Total Tolerated Dose (MTD) of Daily Combination Fludarabine 30 mg/m^2 and Cytarabine 500 mg/m^2 Among 3 Dose Levels (Dose Level 1: 2 Days, Dose Level 2: 3 Days or Dose Level 3: 4 Days)

    Maximum dose levels for Phase I determined among three possible dose levels of Fludarabine and Cytarabine in combination with fixed doses of Oxaliplatin and Rituximab. Fludarabine and Cytarabine Dose Level 1: Days 2-3 (2 Days); Dose Level 2: Days 2-4 (3 Days); and Dose 3: Days 2-5 (4 Days). MTD is dose level at which less than 2/3 or 2/6 participants experience dose limiting toxicities (DLTs). The number of days of fludarabine and cytarabine administration increased simultaneously. Participants received a subsequent cycle of treatment with 1 additional day of fludarabine and cytarabine treatment no less than 4 weeks from the initiation of the previous cycle if no drug-related grade 3 or 4 non-hematologic life-threatening adverse events, and drug-related non-hematologic toxicity resolved to baseline or \< grade 2. A maximum of 6 cycles were administered.

    Time frame: Up to 36 weeks (6 cycles each 4-6 weeks)

Secondary outcomes

  1. Overall Response: Number of Participants With Complete Remission, Nodular Partial Remission, and Partial Remission

    Overall Response includes Complete remission (CR), nodular partial remission (nPR), and partial remission (PR) in high-risk, previously untreated participants with Chronic Lymphocytic Leukemia treated with CFAR using National Cancer Institute - Working Group response criteria. CR defined as zero nodes, Liver/spleen not palpable, zero symptoms, polymorphonuclear leukocyte (PMN)\>1,500/uL, Platelets \>100,000uL, Hemoglobin (untransfused) \>11.0g/dL, Lymphocytes \<4,000/uL and Bone Marrow Aspirate biopsy \<30% lymphocytes with no lymphocyte infiltrate; PR defined as nodes \>/= 50% decrease,Liver/spleen \>/= 50% decrease, symptoms not applicable, PMN \>1,500/uL or \>50% improvement from baseline, Platelets 100,000uL or \>/=50% decrease improvement from baseline, Hemoglobin (untransfused) \>11.0g/dL or \>50% improvement from baseline, Lymphocytes \>50% decrease and Bone Marrow Aspirate biopsy Not Applicable for PR; with nPR defined same as PR but with \<30% lymphocytes with residual disease on biopsy.

    Time frame: Up to 36 weeks (6 cycles each 4-6 weeks)

07

Results

Posted Nov 26, 2013

Participant flow

Recruitment Period 5/31/2007- 2/1/2012; All participants were registered at The University of Texas MD Anderson Cancer Center.

Participant flow — Overall Study
MilestoneOFAR (Phase I)OFAR (Phase II)
Started1278
Completed1278
Not completed00

Outcome measures

SecondaryOverall Response: Number of Participants With Complete Remission, Nodular Partial Remission, and Partial Remission

Overall Response includes Complete remission (CR), nodular partial remission (nPR), and partial remission (PR) in high-risk, previously untreated participants with Chronic Lymphocytic Leukemia treated with CFAR using National Cancer Institute - Working Group response criteria. CR defined as zero nodes, Liver/spleen not palpable, zero symptoms, polymorphonuclear leukocyte (PMN)\>1,500/uL, Platelets \>100,000uL, Hemoglobin (untransfused) \>11.0g/dL, Lymphocytes \<4,000/uL and Bone Marrow Aspirate biopsy \<30% lymphocytes with no lymphocyte infiltrate; PR defined as nodes \>/= 50% decrease,Liver/spleen \>/= 50% decrease, symptoms not applicable, PMN \>1,500/uL or \>50% improvement from baseline, Platelets 100,000uL or \>/=50% decrease improvement from baseline, Hemoglobin (untransfused) \>11.0g/dL or \>50% improvement from baseline, Lymphocytes \>50% decrease and Bone Marrow Aspirate biopsy Not Applicable for PR; with nPR defined same as PR but with \<30% lymphocytes with residual disease on biopsy.

Time frame:
Up to 36 weeks (6 cycles each 4-6 weeks)
Reported as:
Number · participants
Overall Response: Number of Participants With Complete Remission, Nodular Partial Remission, and Partial Remission
participantsOFAR MTD (Phase II)
Complete Remission3
Partial Remission27
Nodular Partial Remission9
PrimaryMaximum Total Tolerated Dose (MTD) of Daily Combination Fludarabine 30 mg/m^2 and Cytarabine 500 mg/m^2 Among 3 Dose Levels (Dose Level 1: 2 Days, Dose Level 2: 3 Days or Dose Level 3: 4 Days)

Maximum dose levels for Phase I determined among three possible dose levels of Fludarabine and Cytarabine in combination with fixed doses of Oxaliplatin and Rituximab. Fludarabine and Cytarabine Dose Level 1: Days 2-3 (2 Days); Dose Level 2: Days 2-4 (3 Days); and Dose 3: Days 2-5 (4 Days). MTD is dose level at which less than 2/3 or 2/6 participants experience dose limiting toxicities (DLTs). The number of days of fludarabine and cytarabine administration increased simultaneously. Participants received a subsequent cycle of treatment with 1 additional day of fludarabine and cytarabine treatment no less than 4 weeks from the initiation of the previous cycle if no drug-related grade 3 or 4 non-hematologic life-threatening adverse events, and drug-related non-hematologic toxicity resolved to baseline or \< grade 2. A maximum of 6 cycles were administered.

Time frame:
Up to 36 weeks (6 cycles each 4-6 weeks)
Reported as:
Number · mg/m^2
Maximum Total Tolerated Dose (MTD) of Daily Combination Fludarabine 30 mg/m^2 and Cytarabine 500 mg/m^2 Among 3 Dose Levels (Dose Level 1: 2 Days, Dose Level 2: 3 Days or Dose Level 3: 4 Days)
mg/m^2OFAR (Phase I)
Fludarabine MTD (Total 3 Day Dose)90
Cytarabine MTD (Total 3 Day Dose)1500

Adverse events

Collected over Adverse event collection from Day 1 of first cycle of therapy through sixth cycle then follow-up (every three to six months following first year) until off study. Enrollment started May 2007 and completion including follow up was January 2011.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
OFAR (Phase I)—8/12 (66.7%)8/12 (66.7%)
OFAR MTD (Phase II)—15/78 (19.2%)71/78 (91%)
Most frequent serious events
Showing 10 of 16
Most frequent serious events
EventOFAR (Phase I)OFAR MTD (Phase II)
Neutropenic FeverInfections and infestations3/120/78
InfectionInfections and infestations2/123/78
DiarrheaGastrointestinal disorders2/121/78
DehydrationGastrointestinal disorders1/123/78
DeathGeneral disorders1/125/78
DyspneaGeneral disorders1/121/78
HyponatremiaMetabolism and nutrition disorders1/120/78
Pleural EffusionRespiratory, thoracic and mediastinal disorders1/120/78
Immune Hemolytic AnemiaBlood and lymphatic system disorders1/120/78
Secondary MalignancyNeoplasms benign, malignant and unspecified (incl cysts and polyps)0/122/78
Most frequent other events
Showing 10 of 27
Most frequent other events
EventOFAR (Phase I)OFAR MTD (Phase II)
ThrombocytopeniaBlood and lymphatic system disorders6/1258/78
NeutropeniaBlood and lymphatic system disorders8/1257/78
AnemiaBlood and lymphatic system disorders4/1235/78
InfectionInfections and infestations0/1223/78
NeuropathyNervous system disorders3/125/78
Nausea/VomitingGastrointestinal disorders3/1214/78
FatigueGeneral disorders2/1219/78
ConstipationGastrointestinal disorders2/124/78
AnorexiaGastrointestinal disorders2/124/78
MucositisGastrointestinal disorders2/125/78

Baseline characteristics

Age Continuous
Age Continuous(Years)OFAR (Phase I)OFAR MTD (Phase II)Total
Median65 (46 to 76)63 (40 to 81)63 (40 to 81)
Sex: Female, Male
Sex: Female, Male(Participants)OFAR (Phase I)OFAR MTD (Phase II)Total
Female32023
Male95867
Region of Enrollment
Region of Enrollment(participants)OFAR (Phase I)OFAR MTD (Phase II)Total
United States127890
08

Study locations

1 site
  • UT MD Anderson Cancer Center
    Houston, Texas 77030, United States
09

References and documents

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 26, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00472849
Lead sponsor
M.D. Anderson Cancer Center
Collaborators
Sanofi
Responsible party
Sponsor
First posted
May 14, 2007
Start date
May 2007
Primary completion
Feb 2012
Completion
Feb 2012
Results posted
Nov 26, 2013
Last update
Nov 26, 2013

Study contacts

William G. Wierda, M.D., PhD
principal investigator · M.D. Anderson Cancer Center

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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