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Reduced Intensity Chemotherapy and Radiation Therapy Before Donor Stem Cell Transplant in Treating Patients With Hematologic Malignancies

A Two Step Approach to Non-Myeloablative Allogeneic Hematopoietic Stem Cell Transplantation for Patients With Hematologic Malignancies

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02566304
Enrollment
35
Registered
2015-10-02
Start date
2015-11-13
Completion date
2024-02-13
Last updated
2025-04-24

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

Conditions

Acute Myeloid Leukemia, Acute Myeloid Leukemia in Remission, Aplastic Anemia, Chronic Myelomonocytic Leukemia, Hodgkin Lymphoma, Indolent Non-Hodgkin Lymphoma, Malignant Neoplasm, Myelodysplastic Syndrome, Myeloproliferative Neoplasm, Plasma Cell Myeloma, Refractory Anemia, Refractory Anemia With Excess Blasts, Refractory Anemia With Ring Sideroblasts, Refractory Cytopenia With Multilineage Dysplasia, Refractory Cytopenia With Multilineage Dysplasia and Ring Sideroblasts

Brief summary

This clinical trial studies the use of reduced intensity chemotherapy and radiation therapy before donor stem cell transplant in treating patients with hematologic malignancies. Giving low doses of chemotherapy, such as cyclophosphamide and fludarabine phosphate, before a donor stem cell transplant may help 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). Reducing the intensity of the chemotherapy and radiation may also reduce the side effects of the donor stem cell transplant.

Detailed description

PRIMARY OBJECTIVES: I. To demonstrate efficacy of this approach over the historical 2 step reduced intensity conditioning (RIC) approaches in the vulnerable population defined as: patients with hematopoietic cell transplant (HCT)-co-morbidity index (CI)/age scores \>= 2, but no more than a score of 5 as based on the Sorror et al. data. SECONDARY OBJECTIVES: I. To compare the non-relapse mortality (NRM) and relapse related mortality (RRM) rates at 1 year for patients treated on this study to the that of patients undergoing haploidentical RIC hematopoietic stem cell transplantation (HSCT) as reported in the literature and as observed in the 2 step RIC trials. II. To determine the incidence and severity of graft-versus-host disease (GVHD) in patients undergoing treated on the Thomas Jefferson University (TJU) RIC 2 step approach. III. To evaluate engraftment rates and lymphoid reconstitution in patients treated on the TJU RIC 2 step approach. OUTLINE: RIC: Patients receive fludarabine phosphate intravenously (IV) over 60 minutes on days -10 to -8 and cyclophosphamide IV over 2 hours on days -3 and -2. Patients also undergo total body irradiation (TBI) followed by a donor lymphocyte infusion (DLI) on day -6. TRANSPLANT: Patients undergo cluster of differentiation (CD)34+ peripheral blood stem cell transplant on day 0. GVHD PROPHYLAXIS: Patients receive tacrolimus orally (PO) beginning day -1 with a taper initiated on day 42 and mycophenolate mofetil IV twice daily (BID) on days -1 to 28 in the absence of GVHD. After completion of study treatment, patients are followed up for 1 year.

Interventions

DRUGFludarabine

Given IV

RADIATIONTotal-Body Irradiation

Undergo TBI

DRUGCyclophosphamide

Given IV

PROCEDUREPeripheral Blood Stem Cell Transplantation

Undergo PBSC transplant

PROCEDUREAllogeneic Hematopoietic Stem Cell Transplantation

Undergo PBSC transplant

DRUGTacrolimus

Given PO

DRUGMycophenolate mofetil

Given IV

OTHERLaboratory Biomarker Analysis

Correlative studies

Sponsors

Sidney Kimmel Cancer Center at Thomas Jefferson University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients treated on this study will have: * Acute myeloid leukemia in morphologic complete remission (CR) not requiring treatment for their disease for 4 weeks * A history of acute myeloid leukemia (AML) with \< 10% residual blasts (use highest count on staging studies) after induction therapy and persisting with \< 10% blasts for at least 8 weeks without reinduction and at the time of HSCT * Refractory anemia (RA) or refractory anemia with ring sideroblasts (RARS) or isolated 5q- * Refractory anemia with excess blasts (RAEB)-1, refractory cytopenia with multilineage dysplasia (RCMD)+/-ringed sideroblasts (RS), or myelodysplastic syndrome (MDS) not otherwise specified (NOS) with stable disease for at least 3 months * RAEB-2 must demonstrate chemo-responsiveness; chemo-responsiveness is defined as a persistent blast percentage decrease by at least 5 percentage points to therapy and there must be =\< 10% blasts (use highest count on staging studies) after treatment and at the time of transplant * Hodgkin or Indolent non-Hodgkin's lymphoma * Myeloma with \< 5% plasma cells in the marrow * Myeloproliferative disorders (excludes chronic myelomonocytic leukemia \[CMML\]) * Aplastic anemia * A hematological or oncological disease (not listed) in which allogeneic HSCT is thought to be beneficial, and the disease is chemoresponsive * Patients without clear manifestation of their disease status in terms of stage and/or responsiveness should be discussed with the principal investigator (PI) and enrollment analysis should be documented in the study records * Patients must have a related donor who is human leukocyte antigen (HLA) mismatched at 2, 3, or 4 antigens at the HLA-A; B; C; DR loci in the graft-versus-host disease (GVHD) direction; (patients with related donors who are HLA identical or are a 1-antigen mismatch may be treated on this therapeutic approach, but will have their outcomes will not be part of the statistical aims of the study); the HLA matched related category includes patients with a syngeneic donor * Patients must have had front line therapy for their disease * LVEF (left ventricular end diastolic function) of \>= 45% * DLCO (diffusing capacity of the lung for carbon monoxide) \>= 45% of predicted corrected for hemoglobin, FEV-1 (forced expiratory volume at 1 second) \>= 50% of predicted * Serum bilirubin =\< 1.8 * Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) =\< 2.5 X upper limit of normal * Creatinine clearance of \>= 60 mL/min * HCT-CI/age score =\< 5 points (patients with greater than 5 points will be allowed for trial with approval of the PI and the co-PI or his designee; this is an adjustment to account for healthy patients who meet the spirit of this protocol but have histories that result in higher than HCT-CI 5 points; an example is a patient with a solid tumor malignancy in their remote history \[adds 3 points to HCT-CI total\] where the treatment for the malignancy occurred years to decades before and there has been complete recovery of toxicities) * Karnofsky performance status (KPS) \>= 90% patients older than 70 years, KPS \>= 80% patients younger than 70 years * Patients must be willing to use contraception if they have childbearing potential

Exclusion criteria

* Performance status \< 90% in patients 70 years old or greater, \< 80% in patients less than age 70 years * HCT-CI/age score \> 5 points (patients with greater than 5 points will be allowed for trial with approval of the principal investigator and the co-principal investigator or his designee; this is an adjustment to account for healthy patients who meet the spirit of this protocol but have histories that result in higher than HCT-CI 5 points; an example is a patient with a solid tumor malignancy in their remote history \[adds 3 points to HCT-CI total\] where the treatment for the malignancy occurred years to decades before and there has been complete recovery of toxicities) * A diagnosis of chronic myelomonocytic leukemia (CMML), unless in morphologic CR * Human immunodeficiency virus (HIV) positive * Active involvement of the central nervous system with malignancy * Inability to obtain informed consent from patient or surrogate * Pregnancy * Patients with life expectancy of =\< 6 months for reasons other than their underlying hematologic/oncologic disorder * Patients who have received alemtuzumab or antithymocyte globulin within 8 weeks of the transplant admission; the absence of these therapies in the medical record will serve as documentation that they were not given * Patients with evidence of another malignancy, exclusive of a skin cancer that requires only local treatment, should not be enrolled on this protocol

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS)At 1 year post HSCTOS will be estimated using Kaplan-Meier curves. The 1-year OS rate and corresponding 95% confidence interval will be estimated from the Kaplan-Meier curve for the OS.

Secondary

MeasureTime frameDescription
Relapse Related Mortality (RRM)At 1 year post HSCTWill be reported descriptively. RRM may also be estimated using Kaplan Meier curves and/or cumulative incidence analyses.
Non-Relapse Mortality (NRM)At 1 year post HSCTWill be reported descriptively. NRM may also be estimated using Kaplan Meier curves and/or cumulative incidence analyses.
Incidence and Severity of GVHDUp to 1 year post HSCTWill be reported descriptively
Engraftment RatesUp to 1 year post HSCTWill be reported descriptively
Lymphoid ReconstitutionUp to 1 year post HSCTLymphoid reconstitution will be evaluated monthly to every other month during the first year post HSCT and will be reported descriptively.

Countries

United States

Participant flow

Participants by arm

ArmCount
RIC HSCT, GVHD Prophylaxis
RIC: Patients receive fludarabine phosphate IV on days -10 to -8 and cyclophosphamide IV on days -3 and -2. Patients also undergo TBI followed by a DLI on day -6. TRANSPLANT: Patients undergo CD34+ peripheral blood stem cell transplant on day 0. GVHD PROPHYLAXIS: Patients receive tacrolimus PO beginning day -1 with a taper initiated on day 42 and mycophenolate mofetil IV BID on days -1 to 28 in the absence of GVHD. Fludarabine: Given IV Total-Body Irradiation: Undergo TBI T Cell-Depleted Donor Lymphocyte Infusion: Undergo DLI Cyclophosphamide: Given IV Peripheral Blood Stem Cell Transplantation: Undergo PBSC transplant Allogeneic Hematopoietic Stem Cell Transplantation: Undergo PBSC transplant Tacrolimus: Given PO Mycophenolate mofetil: Given IV Laboratory Biomarker Analysis: Correlative studies
35
Total35

Baseline characteristics

CharacteristicRIC HSCT, GVHD Prophylaxis
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
22 Participants
Age, Categorical
Between 18 and 65 years
13 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
32 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
8 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
24 Participants
Sex: Female, Male
Female
14 Participants
Sex: Female, Male
Male
21 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 35
other
Total, other adverse events
33 / 35
serious
Total, serious adverse events
10 / 35

Outcome results

Primary

Overall Survival (OS)

OS will be estimated using Kaplan-Meier curves. The 1-year OS rate and corresponding 95% confidence interval will be estimated from the Kaplan-Meier curve for the OS.

Time frame: At 1 year post HSCT

ArmMeasureValue (NUMBER)
RIC HSCT, GVHD ProphylaxisOverall Survival (OS)74 percentage of participants
Secondary

Engraftment Rates

Will be reported descriptively

Time frame: Up to 1 year post HSCT

ArmMeasureValue (NUMBER)
RIC HSCT, GVHD ProphylaxisEngraftment Rates97 percentage of participants
Secondary

Incidence and Severity of GVHD

Will be reported descriptively

Time frame: Up to 1 year post HSCT

ArmMeasureValue (NUMBER)
RIC HSCT, GVHD ProphylaxisIncidence and Severity of GVHD27 percentage of participants
Secondary

Lymphoid Reconstitution

Lymphoid reconstitution will be evaluated monthly to every other month during the first year post HSCT and will be reported descriptively.

Time frame: Up to 1 year post HSCT

ArmMeasureValue (NUMBER)
RIC HSCT, GVHD ProphylaxisLymphoid Reconstitution10 percentage of participants
Secondary

Non-Relapse Mortality (NRM)

Will be reported descriptively. NRM may also be estimated using Kaplan Meier curves and/or cumulative incidence analyses.

Time frame: At 1 year post HSCT

ArmMeasureValue (NUMBER)
RIC HSCT, GVHD ProphylaxisNon-Relapse Mortality (NRM)16 percentage of participants
Secondary

Relapse Related Mortality (RRM)

Will be reported descriptively. RRM may also be estimated using Kaplan Meier curves and/or cumulative incidence analyses.

Time frame: At 1 year post HSCT

ArmMeasureValue (NUMBER)
RIC HSCT, GVHD ProphylaxisRelapse Related Mortality (RRM)13 percentage of participants

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