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Venetoclax and Sequential Busulfan, Cladribine, and Fludarabine Phosphate Before Donor Stem Cell Transplant in Treating Patients With Acute Myelogenous Leukemia or Myelodysplastic Syndrome

Phase 2
Active, not recruiting
Conditions
Acute Myeloid Leukemia
Myelodysplastic Syndrome
Interventions
Procedure: Allogeneic Hematopoietic Stem Cell Transplantation
Other: Laboratory Biomarker Analysis
Procedure: Peripheral Blood Stem Cell Transplantation
Other: Pharmacological Study
Registration Number
NCT02250937
Lead Sponsor
M.D. Anderson Cancer Center
Brief Summary

This randomized phase II trial studies how well venetoclax and sequential busulfan, cladribine, and fludarabine phosphate before donor stem cell transplant work in treating patients with acute myelogenous leukemia or myelodysplastic syndrome. Giving chemotherapy before a donor peripheral blood stem cell transplant helps kill cancer cells in the body and helps make room in the patient's bone marrow for new blood-forming cells (stem cells) to grow. When the healthy stem cells from a donor are infused into a patient, they may help the patient's bone marrow make more healthy cells and platelets and may help destroy any remaining cancer cells.

Detailed Description

PRIMARY OBJECTIVE:

I. To compare progression free survival of two schedules of venetoclax, timed sequential busulfan, cladribine and fludarabine conditioning regimen in patients with acute myelogenous leukemia (AML) and myelodysplastic syndrome (MDS).

SECONDARY OBJECTIVES:

I. Compare overall survival between the two schedules. II. Compare non relapse mortality between the two schedules. III. Compare neutrophil and platelet engraftment between the two schedules. IV. Compare acute and chronic graft-versus-host disease (GVHD) between the two schedules.

V. Compare cumulative incidence of relapse between the two schedules. VI. Compare grade III/IV toxicity between the two schedules.

TERTIARY OBJECTIVES:

I. To study chemotherapy resistance. II. To study deoxyribonucleic acid (DNA) damage. III. To study immune recovery and cytokines (both in plasma and cells). IV. To study BCL-2 family expression, stem cell surface markers and intracellular signaling markers in AML cells at the time of relapse.

OUTLINE:

PREPARATIVE REGIMEN: Patients are randomized to 1 of 2 treatment arms.

ARM I: Patients receive venetoclax orally (PO) once daily (QD) on days -22 to -3 and busulfan intravenously (IV) over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3.

ARM II: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3.

TRANSPLANT: Patients undergo allogeneic peripheral blood stem cell transplant (PBSCT) on day 0.

After completion of study treatment, patients are followed up for 2.5 years.

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
116
Inclusion Criteria
  • Patients with biopsy-proven acute myeloid leukemia or myelodysplastic syndrome with persistent disease or in remission
  • Human leukocyte antigen (HLA)-identical sibling or 8/8 matched unrelated donor transplant
  • Patients age 18 to 70 years old; eligibility for pediatric patients will be determined in conjunction with an MD Anderson Cancer Center (MDACC) pediatrician; patients age 2-17 years may be enrolled after at least 10 adults (ages 18-70 years old) have been assessed for safety at day 30
  • Direct bilirubin < 1 mg/dl
  • Alanine aminotransferase (ALT) < 3 times upper limit of normal
  • Creatinine clearance > 50 ml/min (calculated creatinine clearance is permitted)
  • Forced expiratory volume in 1 second (FEV1) >= 50% of expected corrected for hemoglobin and/or volume
  • Forced vital capacity (FVC) >= 50% of expected corrected for hemoglobin and/or volume
  • Diffusing capacity of the lungs for carbon monoxide (DLCO) >= 50% of expected corrected for hemoglobin and/or volume
  • Children unable to perform pulmonary function tests (e.g., less than 7 years old) pulse oximetry of >= 92% on room air
  • Left ventricular ejection fraction (LVEF) >= 40%
  • Patient, legally authorized representative (LAR), or parent able to sign informed consent; able to give assent for patients age 7-17
  • Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization; women of child bearing potential must be willing to use an effective contraceptive measure while on study
  • Performance score of >= 70 by Karnofsky/Lansky or performance status (PS) 0 or 1 (Eastern Cooperative Oncology Group [ECOG] =< 1)
Exclusion Criteria
  • Prior allogeneic or autologous transplantation
  • Uncontrolled infections
  • Human immunodeficiency virus (HIV) seropositivity
  • Hematopoietic cell transplantation (HCT) co-morbidity index score > 3; the principal investigator is the final arbiter of eligibility for comorbidity score > 3
  • Patients with prior coronary artery disease

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Arm I (busulfan days -13 and -12 before PBSCT)Fludarabine PhosphatePREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm I (busulfan days -13 and -12 before PBSCT)Laboratory Biomarker AnalysisPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm I (busulfan days -13 and -12 before PBSCT)Allogeneic Hematopoietic Stem Cell TransplantationPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm I (busulfan days -13 and -12 before PBSCT)BusulfanPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm I (busulfan days -13 and -12 before PBSCT)Peripheral Blood Stem Cell TransplantationPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm I (busulfan days -13 and -12 before PBSCT)Pharmacological StudyPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)Allogeneic Hematopoietic Stem Cell TransplantationPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)BusulfanPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)CladribinePREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)Fludarabine PhosphatePREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)Laboratory Biomarker AnalysisPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)Peripheral Blood Stem Cell TransplantationPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)Pharmacological StudyPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm I (busulfan days -13 and -12 before PBSCT)CladribinePREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm I (busulfan days -13 and -12 before PBSCT)VenetoclaxPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -13 and -12. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Arm II (busulfan days -20 and -13 before PBSCT)VenetoclaxPREPARATIVE REGIMEN: Patients receive venetoclax PO QD on days -22 to -3 and busulfan IV over 3 hours on days -20 and -13. Patients then receive fludarabine phosphate IV over 1 hour, cladribine IV over 2 hours, and busulfan IV over 3 hours on days -6 to -3. TRANSPLANT: Patients undergo allogeneic PBSCT on day 0.
Primary Outcome Measures
NameTimeMethod
Progression free survivalAt 6 months

The method of Kaplan and Meier will be used to estimate distribution of progression free survival.

Disease free survival (DFS)Up to 2.5 years

Will test whether there is strong evidence that DFS differs between the two arms using a stratified log-rank test. Will use the Lan-DeMets alpha spending approach with an O'Brien-Fleming stopping boundary to compare the two arms.

Secondary Outcome Measures
NameTimeMethod
Incidence of toxicity of these regimensUp to 2.5 years
Time to platelet engraftmentUp to 2.5 years

The method of Kaplan and Meier will be used to estimate time to platelet engraftment.

Non-relapse mortalityUp to 2.5 years

Will use the method of Gooley et al to estimate the cumulative incidence of non-relapse mortality. Will use the method of Fine and Gary to fit regression models to the cumulative incidence outcomes. Logistic regression will be used to model the association between 100-day NRM and clinical and demographic covariates of interest.

Cumulative incidence of acute graft versus host disease (GVHD)Up to 2.5 years

Will use the method of Gooley et al to estimate the cumulative incidence of acute GVHD. Will use the method of Fine and Gary to fit regression models to the cumulative incidence outcomes.

Time to neutrophil engraftmentUp to 2.5 years

The method of Kaplan and Meier will be used to estimate time to neutrophil engraftment.

Cumulative incidence of chronic GVHDUp to 2.5 years

Will use the method of Gooley et al to estimate the cumulative incidence of chronic GVHD. Will use the method of Fine and Gary to fit regression models to the cumulative incidence outcomes.

Overall survivalUp to 2.5 years

The method of Kaplan and Meier will be used to estimate the distribution of overall survival. Cox proportional hazards regression analysis will be used to model the association between overall survival and covariates of interest.

Cumulative incidence of relapseUp to 2.5 years

Will use the method of Gooley et al to estimate the cumulative incidence of relapse. Will use the method of Fine and Gary to fit regression models to the cumulative incidence outcomes.

Trial Locations

Locations (1)

M D Anderson Cancer Center

🇺🇸

Houston, Texas, United States

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