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Phase I/II Trial of Fludarabine Plus Busulfan and Allogeneic Progenitor Cell Support

Phase I/II Trial of Fludarabine in Combination With Intravenous Busulfan and Allogeneic Progenitor Cell Support for Patients With Hematologic Malignancies

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00506857
Enrollment
82
Registered
2007-07-25
Start date
2003-11-30
Completion date
2011-08-31
Last updated
2012-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hematologic Malignancies

Keywords

Hematologic Malignancies, Blood And Marrow Transplantation, Leukemia, MDS, Lymphoma, Myeloma, Fludarabine, Fludara, Fludarabine Phosphate, Busulfan, Busulfex, Myleran, Progenitor Cell Transplantation, Granulocyte colony stimulating factor, G-CSF, Apheresis, Blood cell infusion

Brief summary

Objectives: 1. To determine the relative toxicities, engraftment potential, kinetics of engraftment, degree of chimerism and disease control achieved with the combination of fludarabine and busulfan at different dose levels and different dose schedules in patients undergoing allogeneic stem cell transplant (SCT). 2. Determine pharmacokinetics, and toxicity of intravenous busulfan given at equal total dose levels given four times daily, or once daily. 3. In vivo determination of fludarabine inhibitory effects on DNA repair.

Detailed description

Treatment: Participants will have blood tests and bone marrow tests as well as tests to check lung, heart, kidney, and liver functions. Participants will receive busulfan by vein for 2 to 4 days depending on their age and medical condition. All participants will receive fludarabine which will be given over 4 days. Participants undergoing unmatched or matched unrelated donors will receive ATG over 4 days to help with the engraftment of the donor progenitor cells. All drugs are given through the vein daily. The donor blood cells will be taken from the donor through a process known as apheresis. This will occur after the donor has received 2 days of granulocyte colony stimulating factor (G-CSF) to increase her/his white cell count. The G-CSF will also increase the number of very immature (stem cells) that are to be collected. Apheresis is similar to a platelet donation, but white cells and stem cells are collected instead. About 3 to 5 apheresis procedures will be needed to get enough cells for infusion. If apheresis is not used, donor bone marrow will be taken under general anesthesia. After the participants receives the donor stem cells, the stem cells divide and reconstitute bone marrow function, blood function, and immunity. The donor stem cells are given after the chemotherapy to shorten the period of low blood counts. They are also given at this time to achieve an antileukemic effect whereby the donor immune cells will recognize the participant's leukemia as foreign and prevent its recurrence. A small amount of donor cells will be kept for infusion on a future date (usually 3 and 6 months post transplant) to try to prevent the disease from coming back. During the 4 to 8 weeks following blood cell infusion, participants will need frequent blood tests to monitor their counts and blood chemistries. Participants will need frequent blood transfusion and may have to be admitted to the hospital to receive antibiotics if they develop fever. Bone marrow will be examined frequently beginning four weeks after treatment to check response. Participants that achieve normal bone marrow and blood counts will be evaluated to determine the most appropriate form of future therapy. Participants who fail to respond to treatment will be offered other therapies. This is an investigational study. All through all drugs are commercially available. Up to 140 participants will take part in this study. All will be enrolled at UT MD Anderson Cancer Center.

Interventions

DRUGBusulfan

Starting Dose 0.8 mg/kg by vein every 6 hours x 12 doses.

DRUGFludarabine

30 mg/m\^2 by vein daily x 4 days.

Sponsors

M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
No minimum to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Less than physiologic 75 years of age. 2. Interferon resistant late chronic phase CML not eligible for a protocol of higher priority. 3. Accelerated/Blastic Phase CML. 4. Acute leukemia or Intermediate to High Risk MDS according to the IPPS. 5. Any Lymphoma or Myeloma beyond CR1 ineligible for a protocol of higher priority. 6. Patients must have an HLA compatible donor willing to donate either peripheral blood or bone marrow progenitor cells. 7. Both patients and donor must sign written informed consents.

Exclusion criteria

1. Uncontrolled infection 2. Bilirubin \>3.0 3. Creatinine \>2.5 4. Performance Status \>Zubrod 2

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose (MTD)1 monthContinual reassessment method (four times a day) used to determine an MTD, with a target toxicity probability of 20%, where toxicity is defined as grade 3 or 4 conventional toxicity \[National Cancer Institute Common Toxicity Criteria (NCI-CTC)\]. Participant evaluation in a cohort with each modality is 30 days.

Secondary

MeasureTime frameDescription
Number of Participants With Graft Versus Host Disease (GVHD)5 yearsTacrolimus and Methotrexate used for acute graft versus host disease (aGVHD) prophylaxis, clinical grading AGVHD criteria (Days 1-100): Grade 1: + to ++ skin rash; no gut involvement; no decrease in clinical performance status; Grade 2: + to +++ skin rash; + gut involvement and/or + liver involvement; mild decrease in performance status; Grade 3: ++ to +++ skin rash; ++ to +++ gut involvement and/or ++ to ++++ liver involvement; marked decrease in performance status; Grade 4: Similar to Grade 3 with ++ to ++++ organ involvement and extreme decrease in performance status.

Countries

United States

Participant flow

Recruitment details

Recruitment period: November 2003 to August 2011. All recruitment was done at UT MD Anderson Cancer Center.

Pre-assignment details

Of the 82 participants enrolled, two (2) participants were excluded from the trial before starting treatment.

Participants by arm

ArmCount
Busulfan + Fludarabine
Busulfan starting 0.8 mg/kg by vein (IV) every 6 hours for 12 doses; Fludarabine 30 mg/m\^2 IV daily for 4 days.
80
Total80

Baseline characteristics

CharacteristicBusulfan + Fludarabine
Age Continuous56 years
Region of Enrollment
United States
80 participants
Sex: Female, Male
Female
26 Participants
Sex: Female, Male
Male
54 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
80 / 80
serious
Total, serious adverse events
72 / 80

Outcome results

Primary

Maximum Tolerated Dose (MTD)

Continual reassessment method (four times a day) used to determine an MTD, with a target toxicity probability of 20%, where toxicity is defined as grade 3 or 4 conventional toxicity \[National Cancer Institute Common Toxicity Criteria (NCI-CTC)\]. Participant evaluation in a cohort with each modality is 30 days.

Time frame: 1 month

Population: Analysis was per protocol.

ArmMeasureValue (NUMBER)
Busulfan + FludarabineMaximum Tolerated Dose (MTD)11.2 mg/kg
Secondary

Number of Participants With Graft Versus Host Disease (GVHD)

Tacrolimus and Methotrexate used for acute graft versus host disease (aGVHD) prophylaxis, clinical grading AGVHD criteria (Days 1-100): Grade 1: + to ++ skin rash; no gut involvement; no decrease in clinical performance status; Grade 2: + to +++ skin rash; + gut involvement and/or + liver involvement; mild decrease in performance status; Grade 3: ++ to +++ skin rash; ++ to +++ gut involvement and/or ++ to ++++ liver involvement; marked decrease in performance status; Grade 4: Similar to Grade 3 with ++ to ++++ organ involvement and extreme decrease in performance status.

Time frame: 5 years

Population: Analysis was per protocol for 73 patients out of 80 patients due to 3 early deaths and 4 non engraftments.

ArmMeasureGroupValue (NUMBER)
Busulfan + FludarabineNumber of Participants With Graft Versus Host Disease (GVHD)Grade 218 Participants
Busulfan + FludarabineNumber of Participants With Graft Versus Host Disease (GVHD)Grade 3-48 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026