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Treosulfan, Fludarabine Phosphate, and Total-Body Irradiation Before Donor Stem Cell Transplant in Treating Patients With High-Risk Acute Myeloid Leukemia, Myelodysplastic Syndrome, Acute Lymphoblastic Leukemia

A Multi-Center Study of Conditioning With Treosulfan, Fludarabine and Escalating Doses of TBI for Allogeneic Hematopoietic Cell Transplantation in Patients With Acute Myeloid Leukemia (AML) Myelodysplastic Syndrome (MDS), and Acute Lymphoblastic Leukemia (ALL)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00860574
Enrollment
96
Registered
2009-03-12
Start date
2009-02-28
Completion date
Unknown
Last updated
2021-06-22

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

Conditions

Accelerated Phase Chronic Myelogenous Leukemia, Adult Acute Lymphoblastic Leukemia in Remission, Adult Acute Myeloid Leukemia in Remission, Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities, Adult Acute Myeloid Leukemia With Del(5q), Adult Acute Myeloid Leukemia With Inv(16)(p13;q22), Adult Acute Myeloid Leukemia With t(15;17)(q22;q12), Adult Acute Myeloid Leukemia With t(16;16)(p13;q22), Adult Acute Myeloid Leukemia With t(8;21)(q22;q22), Blastic Phase Chronic Myelogenous Leukemia, Childhood Acute Lymphoblastic Leukemia in Remission, Childhood Acute Myeloid Leukemia in Remission, Childhood Chronic Myelogenous Leukemia, Childhood Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia, de Novo Myelodysplastic Syndromes, Previously Treated Myelodysplastic Syndromes, Recurrent Adult Acute Lymphoblastic Leukemia, Recurrent Adult Acute Myeloid Leukemia, Recurrent Childhood Acute Lymphoblastic Leukemia, Recurrent Childhood Acute Myeloid Leukemia, Secondary Myelodysplastic Syndromes, Untreated Adult Acute Lymphoblastic Leukemia, Untreated Childhood Acute Lymphoblastic Leukemia

Brief summary

This phase II trial is studying how well giving treosulfan together with fludarabine phosphate and total-body irradiation followed by donor stem cell transplant works in treating patients with high-risk acute myeloid leukemia, myelodysplastic syndrome, acute lymphoblastic leukemia. Giving chemotherapy, such as treosulfan and fludarabine phosphate, and total-body irradiation before a donor bone marrow or peripheral blood stem cell transplant helps stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. The donated stem cells may replace the patient's immune cells and help destroy any remaining cancer cells (graft-versus-tumor effect). Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving tacrolimus and methotrexate before and after transplant may stop this from happening

Detailed description

PRIMARY OBJECTIVES: I. Decrease the incidence of relapse to \< 15% at 6 month post transplant in patients with high risk acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) transplanted from related or unrelated donors, without unacceptably increasing toxicity (10% non-relapse mortality \[NRM\] at 6 months). SECONDARY OBJECTIVES: I. Evaluate the incidence of NRM at 180 days and 1 year after hematopoietic cell transplantation (HCT). II. Evaluate overall survival (OS) and relapse-free survival (RFS). III. Incidence of grades II-IV acute graft-versus-host disease (GVHD). IV. Incidence of chronic GVHD. V. Donor chimerism on days +28 and +100. OUTLINE: CONDITIONING REGIMEN: Patients receive fludarabine phosphate intravenously (IV) over 30 minutes on days -6 to day -2 and treosulfan IV over 2 hours on days -6 to day -4. Patients also undergo total-body irradiation on day 0. TRANSPLANTATION: Patients undergo allogeneic peripheral blood stem cell transplantation or bone marrow transplantation on day 0. GVHD PROPHYLAXIS: Patients receive tacrolimus IV continuously or orally (PO) twice daily (BID) on days -1 to 56, followed by a taper until day 180 in the absence of GVHD. Patients also receive methotrexate IV on days 1, 3, 6, and 11. After completion of study treatment, patients are followed up periodically.

Interventions

DRUGtreosulfan

Given IV

DRUGfludarabine phosphate

Given IV

RADIATIONtotal-body irradiation

Low dose starting at 2Gy

PROCEDUREperipheral blood stem cell transplantation

Given IV per institutional standard practice

DRUGtacrolimus

Given IV or PO

PROCEDUREallogeneic bone marrow transplantation

Given IV per institutional standard practice

PROCEDUREallogeneic hematopoietic stem cell transplantation

Given IV per institutional standard practice

DRUGmethotrexate

Given IV

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH
Fred Hutchinson 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 60 Years
Healthy volunteers
No

Inclusion criteria

* Acute myeloid leukemia (AML): * All AML patients beyond 1st remission; * Intermediate or high risk AML patients (based on South West Oncology Group \[SWOG\] cytogenetic criteria) in 1st complete remission * Myelodysplastic syndrome (MDS) * Other myeloid malignancies as chronic myelogenous leukemia (CML), CML accelerated phase, CML blast crisis, chronic myelomonocytic leukemia (CMML) (to be approved by patient care conference \[PCC\]) * With Karnofsky Index or Lansky Play-Performance Scale \> 70% on pre-transplant evaluation * Able to give informed consent (if \> 18 years), or with a legal guardian capable of giving informed consent (if \< 18 years) * Previous autologous or allogeneic HCT is allowed * Donors must be: * Human leukocyte antigen (HLA)-identical related donors or * Unrelated donors matched for HLA-A, B, C, DRB1, and DQB1 defined by high resolution deoxyribonucleic acid (DNA) typing or mismatched for one HLA allele, except for HLA-C where no mismatch is allowed * Able to undergo peripheral blood stem cell collection or bone marrow harvest * In good general health, with a Karnofsky or Lansky Play Performance score \> 90% * Able to give informed consent (if \> 18 years), or with a legal guardian capable of giving informed consent (if \< 18 years) * Acute lymphoblastic leukemia (ALL): all ALL patients not eligible for other protocols

Exclusion criteria

* Receiving umbilical cord blood * With impaired cardiac function as evidenced by ejection fraction \< 35% or cardiac insufficiency requiring treatment or symptomatic coronary artery disease * With impaired pulmonary function as evidenced by partial pressure of oxygen (pO2) \< 70 mm Hg and diffusing capacity of the lung for carbon monoxide (DLCO) \< 70% of predicted or pO2 \< 80 mm Hg and DLCO \< 60% of predicted; or receiving supplementary continuous oxygen * With impaired renal function as evidenced by creatinine-clearance \< 50% for age, weight, height or serum creatinine \> 2x upper normal limit or dialysis-dependent * With hepatic dysfunction as evidenced by total bilirubin or aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \> 2.0 x upper normal limit or evidence of synthetic dysfunction or severe cirrhosis * With active infectious disease requiring deferral of conditioning, as recommended by an Infectious Disease specialist * With human immunodeficiency virus (HIV)-positivity or active infectious hepatitis because of possible risk of lethal infection when treated with immunosuppressive therapy * With central nervous system (CNS) leukemic involvement not clearing with intrathecal chemotherapy and/or cranial radiation prior to initiating conditioning (day -6) * With life expectancy severely limited by diseases other than malignancy * Women who are pregnant or lactating because of possible risk to the fetus or infant * With known hypersensitivity to treosulfan and/or fludarabine * Receiving another experimental drug within 4 weeks before initiation of conditioning (day -6) * Unable to give informed consent (if \> 18 years) or with a legal guardian (if \< 18 years) unable to give informed consent * Ineligible donors will be those: * Deemed unable to undergo marrow harvesting or PBSC mobilization and leukapheresis * Who are HIV-positive * With active infectious hepatitis * Females with a positive pregnancy test * Unable to give informed consent (if \> 18 years) or with a legal guardian (if \< 18 years) unable to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
Relapse IncidenceAt 6 months
Non Relapse Mortality (NRM) IncidenceAt 6 monthsCumulative incidence of NRM at 6 months. NRM includes all deaths without relapse or disease progression.

Secondary

MeasureTime frameDescription
Relapse-free Survivalat 2 years
Incidence of Grades II-IV Acute GVHDat 6 months
Non Relapse Mortality Incidence1 year after HCT
Median Donor CD3 + T Lymphocyte Chimerism in Peripheral BloodDay 28 after HCTDonor chimerism was evaluated in peripheral blood T cells
Incidence of Chronic GVHDat 6 months
Overall Survival (OS)at 2 years

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (Allogeneic Transplantation)
CONDITIONING REGIMEN: Patients receive fludarabine phosphate IV over 30 minutes on days -6 to day -2 and treosulfan IV over 2 hours on days -6 to day -4. Patients also undergo total-body irradiation on day 0. TRANSPLANTATION: Patients undergo allogeneic peripheral blood stem cell transplantation or bone marrow transplantation on day 0. GVHD PROPHYLAXIS: Patients receive tacrolimus IV continuously or PO BID on days -1 to 56, followed by a taper until day 180 in the absence of GVHD. Patients also receive methotrexate IV on days 1, 3, 6 and 11. treosulfan: Given IV fludarabine phosphate: Given IV total-body irradiation: Low dose starting at 2Gy peripheral blood stem cell transplantation: Given IV per institutional standard practice tacrolimus: Given IV or PO allogeneic bone marrow transplantation: Given IV per institutional standard practice allogeneic hematopoietic stem cell transplantation: Given IV per institutional standard practice methotrexate: Given IV
96
Total96

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath2
Overall StudyRelapse1

Baseline characteristics

CharacteristicTreatment (Allogeneic Transplantation)
Age, Continuous51 years
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
93 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
87 Participants
Region of Enrollment
United States
96 Participants
Sex: Female, Male
Female
39 Participants
Sex: Female, Male
Male
57 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
21 / 96
other
Total, other adverse events
68 / 96
serious
Total, serious adverse events
17 / 96

Outcome results

Primary

Non Relapse Mortality (NRM) Incidence

Cumulative incidence of NRM at 6 months. NRM includes all deaths without relapse or disease progression.

Time frame: At 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Allogeneic Transplantation)Non Relapse Mortality (NRM) Incidence6 Participants
Primary

Relapse Incidence

Time frame: At 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Allogeneic Transplantation)Relapse Incidence18 Participants
Secondary

Incidence of Chronic GVHD

Time frame: at 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Allogeneic Transplantation)Incidence of Chronic GVHD20 Participants
Secondary

Incidence of Grades II-IV Acute GVHD

Time frame: at 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Allogeneic Transplantation)Incidence of Grades II-IV Acute GVHD57 Participants
Secondary

Median Donor CD3 + T Lymphocyte Chimerism in Peripheral Blood

Donor chimerism was evaluated in peripheral blood T cells

Time frame: Day 28 after HCT

ArmMeasureValue (MEDIAN)
Treatment (Allogeneic Transplantation)Median Donor CD3 + T Lymphocyte Chimerism in Peripheral Blood100 percentage of T cells
Secondary

Non Relapse Mortality Incidence

Time frame: 1 year after HCT

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Allogeneic Transplantation)Non Relapse Mortality Incidence6 Participants
Secondary

Overall Survival (OS)

Time frame: at 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Allogeneic Transplantation)Overall Survival (OS)71 Participants
Secondary

Relapse-free Survival

Time frame: at 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Allogeneic Transplantation)Relapse-free Survival62 Participants

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