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Fludarabine and Busulfan vs. Fludarabine, Busulfan and Total Body Irradiation

PRO#1278: A Phase III Study of Fludarabine and Busulfan Versus Fludarabine, Busulfan and Low Dose Total Body Irradiation in Patients Receiving an Allogeneic Hematopoietic Stem Cell Transplant

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01366612
Acronym
FLUBUTBI
Enrollment
53
Registered
2011-06-06
Start date
2010-06-16
Completion date
2020-08-18
Last updated
2026-04-03

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

Conditions

Acute Myelogenous Leukemia, Chronic Myelogenous Leukemia, Myelodysplastic Syndrome, Myeloid Malignancies, Myeloproliferative Disorders

Keywords

Allogeneic Stem Cell Transplant, AML, CML, MDS

Brief summary

This is a single institution study of fludarabine and busulfan versus fludarabine, busulfan and low dose total body irradiation in patients undergoing allogeneic stem cell transplantation. A study population of 80 subjects will be enrolled from The John Theurer Cancer Center at Hackensack University Medical Center. Subjects who are eligible to receive allogeneic hematopoietic stem cell transplantation according to the eligibility criteria will be consented and enrolled. Subjects will be randomly assigned to receive one of 2 conditioning regimen: fludarabine and busulfan, or fludarabine busulfan and low dose total body irradiation (TBI). Subjects will be followed until 1 year post transplantation to assess the relapse rate in each arm and transplant-related toxicity. The combination of fludarabine and busulfan is the current standard of care for patients with myeloid malignancies (AML, CML and other myeloproliferative disorders, or MDS) undergoing allogeneic transplantation at HUMC. In this study we will be comparing in a randomized fashion the standard regimen to a regimen of fludarabine, busulfan and TBI.

Detailed description

This is a single institution study of fludarabine and busulfan versus fludarabine, busulfan and low dose total body irradiation in patients undergoing allogeneic stem cell transplantation. A study population of 80 subjects will be enrolled from The John Theurer Cancer Center at Hackensack University Medical Center. Subjects who are eligible to receive allogeneic hematopoietic stem cell transplantation according to the eligibility criteria will be consented and enrolled. Subjects will be randomly assigned to receive one of 2 conditioning regimen: fludarabine and busulfan, or fludarabine busulfan and low dose total body irradiation (TBI). Subjects will be followed until 1 year post transplantation to assess the relapse rate in each arm and transplant-related toxicity. The combination of fludarabine and busulfan is the current standard of care for patients with myeloid malignancies (myelogenous leukemia, chronic myelogenous leukemia, other myeloproliferative disorder, or myelodysplastic syndrome) undergoing allogeneic transplantation at HUMC. In this study we will be comparing in a randomized fashion the standard regimen to a regimen of fludarabine, busulfan and TBI. Primary Objective The primary objective is to compare the relapse rate at 1 year of patients with myeloid malignancies receiving each regimen. Secondary Objectives The secondary objective is to compare the toxicity of each regimen

Interventions

DRUGFludarabine and Busulfan plus/minus Total Body Irradiation (low dose)

Fludarabine 40mg/m2 and Busulfan 130mg/m2 on days -6, -5, -4 and -3 of transplant. rATG on days -3, -2 and -1

DRUGFludarabine and Busulfan + Low Dose Total Body Irradiation (LD TBI)

Fludarabine 40mg/m2 and Busulfan 130mg/m2 on days -6, -5, -4 and -3 of transplant. rATG on days -3, -2 and -1 TBI 200cGY (as randomized) on day -1

Sponsors

Hackensack Meridian Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of acute myelogenous leukemia, chronic myelogenous leukemia, other myeloproliferative disorder, or myelodysplastic syndrome * Any stage of disease will be considered for transplantation * Have a suitable related or unrelated donor (Section 3.3) * Age ≥18 but \<70 yrs * KPS of ≥70% * Recovery from all hematologic and non-hematology toxicities from previous therapies.

Exclusion criteria

* Diagnosis other than acute myelogenous leukemia, myeloproliferative disorder, or myelodysplastic syndrome * Chemotherapy or radiotherapy within 14 days of initiating treatment in this study with the exception of lenalidomide, decitabine, azacitidine, imatinib mesylate, dasatinib, nilotinib hydrochloride and hydroxyurea * Prior dose-intense therapy requiring HSC support within 56 days of initiating treatment in this study * Uncontrolled bacterial, viral, fungal or parasitic infections * Uncontrolled CNS metastases * Known amyloid deposition in heart * Organ dysfunction * LVEF \<40% or cardiac failure not responsive to therapy * FVC, FEV1, or DLCO \<50% of predicted and/or receiving supplementary continuous oxygen * Evidence of hepatic synthetic dysfunction, or total bilirubin \>2x or AST \>3x ULN * Measured creatinine clearance \<20 ml/min * Karnofsky score \<70% * Life expectancy limited by another co-morbid illness * Diagnosed or treated for another malignancy within 3 years of enrollment, with the exception of complete resection of basal cell carcinoma or squamous cell carcinoma of the skin, an in situ malignancy, or low-risk prostate cancer after curative therapy * Female subject is pregnant or breast-feeding (women) or unwilling to use acceptable birth control methods (men or women) for twelve months after treatment. Confirmation that the subject is not pregnant must be established by a negative serum β-human chorionic gonadotropin (β-hCG) pregnancy test result obtained during screening. Pregnancy testing is not required for post-menopausal or surgically sterilized women. * Documented hypersensitivity to fludarabine or melphalan or to bortezomib, boron or mannitol or any components of the formulation * Patients unable or unwilling to provide consent * Myocardial infarction within 6 months prior to enrollment or has New York Heart Association (NYHA) Class III or IV heart failure (see section 8.4), uncontrolled angina, severe uncontrolled ventricular arrhythmias, or electrocardiographic evidence of acute ischemia or active conduction system abnormalities. Prior to study entry, any ECG abnormality at screening has to be documented by the investigator as not medically relevant * Patient has received other investigational drugs with 14 days before enrollment * Serious medical or psychiatric illness likely to interfere with participation in this clinical study Donor Inclusion and

Design outcomes

Primary

MeasureTime frame
To Compare the Relapse Rate at 1 Year of Patients With Myeloid Malignancies Receiving Each Treatment1 year

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORMichele Donato, MD

Hackensack Meridian Health

Participant flow

Pre-assignment details

Of the 53 consented, Forty-Seven patients with myeloid diseases were randomized into Flu/Bu4 (25 patients) or Flu/Bu4/TBI (22 patients)

Participants by arm

ArmCount
Group 1
FLUDARABINE AND BUSULFAN Fludarabine and Busulfan plus/minus Total Body Irradiation (low dose): Fludarabine 40mg/m2 and Busulfan 130mg/m2 on days -6, -5, -4 and -3 of transplant. rATG on days -3, -2 and -1
25
Group 2
FLUDARABINE, BUSULFAN AND LOW DOSE TOTAL BODY IRRADIATION Fludarabine and Busulfan + Low Dose Total Body Irradiation (LD TBI): Fludarabine 40mg/m2 and Busulfan 130mg/m2 on days -6, -5, -4 and -3 of transplant. rATG on days -3, -2 and -1 TBI 200cGY (as randomized) on day -1
22
Total47

Baseline characteristics

CharacteristicGroup 1Group 2Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
25 Participants22 Participants47 Participants
Age, Continuous48.4 Years48.8 Years48.6 Years
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants3 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
21 Participants19 Participants40 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
3 Participants0 Participants3 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants1 Participants4 Participants
Race (NIH/OMB)
White
18 Participants19 Participants37 Participants
Region of Enrollment
United States
25 participants22 participants47 participants
Sex: Female, Male
Female
11 Participants8 Participants19 Participants
Sex: Female, Male
Male
14 Participants14 Participants28 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
6 / 258 / 22
other
Total, other adverse events
0 / 250 / 22
serious
Total, serious adverse events
18 / 2516 / 22

Outcome results

Primary

To Compare the Relapse Rate at 1 Year of Patients With Myeloid Malignancies Receiving Each Treatment

Time frame: 1 year

Population: Relapse Rate was analyzed in 34 patients with AML

ArmMeasureValue (NUMBER)
Group 1To Compare the Relapse Rate at 1 Year of Patients With Myeloid Malignancies Receiving Each Treatment38.9 Percent
Group 2To Compare the Relapse Rate at 1 Year of Patients With Myeloid Malignancies Receiving Each Treatment18.8 Percent

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