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Reduced Intensity Conditioning Transplant Using Haploidentical Donors

Reduced Intensity Conditioning and Transplantation of Partially HLA-Mismatched Peripheral Blood Stem Cells for Patients With Hematologic Malignancies

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02581007
Enrollment
25
Registered
2015-10-20
Start date
2015-10-26
Completion date
2020-12-28
Last updated
2023-04-27

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

Conditions

Chronic Myelogenous Leukemia, Acute Myelogenous Leukemia, Myelodysplastic Syndrome, Acute Lymphocytic Leukemia, Chronic Lymphocytic Leukemia, Hodgkin's Lymphoma, Non-Hodgkin's Lymphoma, Myelofibrosis, CMML, Multiple Myeloma

Keywords

CML, AML, MDS, ALL, CLL/CPL, HD, NHL, MPS, CMML, MM

Brief summary

This trial will evaluate the safety and efficacy of a reduced intensity allogeneic HSCT from partially HLA-mismatched first-degree relatives utilizing PBSC as the stem cell source. The primary objective of the study is to estimate the incidence of graft rejection and acute GVHD. A secondary objective will be to estimate the incidence of the relapse, NRM, OS, chronic GVHD and EFS.

Detailed description

Patients will receive a haploidentical transpalnt using a fludarabine melphalan prepartive regimen. Patients will get cyclophosphamide on days 3 & 4 post-transplant.

Interventions

DRUGFludarabine

fludarabine (30mg/m2) given every day starting on Day -6 through Day -2;

DRUGMelphalan
DRUGCyclophosphamide

cyclophosphamide (50mg/kg) given every day starting on Day 3 through Day 4.

Sponsors

Blood and Marrow Transplant Group of Georgia
CollaboratorOTHER
Northside Hospital, Inc.
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* No available matched related or unrelated donor, OR a matched related or unrelated donor will not be available in time frame necessary to perform potentially curative transplant * Availability of 3/6 - 5/6 matched (HLA-A, B, DR) related donor (donor must have negative HLA cross-match in host vs. graft direction) * Karnofsky status ≥70% * One of the following high-risk malignancies: 1. Chronic Myelogenous Leukemia: Chronic myelogenous leukemia in chronic phase, resistant or intolerant to available tyrosine kinase inhibitors; Chronic myelogenous leukemia in accelerated phase; Chronic myelogenous leukemia with blast crisis that has entered into a second chronic phase following induction chemotherapy 2. Acute Myelogenous Leukemia in first or greater remission 3. Myelodysplastic Syndrome at least one of the following: treatment-related; monosmy 7, complex cytogenetics or other high risk karyotype; IPSS score of 1.0 or greater; neutropenia or cytopenia requiring transfusion not responding to therapy; peripheral or BM blast count of \<10%; CMML 4. Acute lymphocytic leukemia/lymphoblastic lymphoma: 2nd or subsequent complete remission; first complete remission; marrow blasts \<5%, but persistence of minimal residual disease by flow cytometry, cytogenetics, or FISH 5. Chronic Lymphocytic Leukemia/Prolymphocytic Leukemia: previously treated disease that has either relapsed or failed to respond adequately to conventional-dose therapy including purine analogs 6. Hodgkin's or Non-Hodgkin's Lymphoma (including low-grade, mantle cell, and intermediate-grade/diffuse): previously treated disease that has either relapsed or failed to respond adequately to conventional-dose therapy or autologous transplantation 7. Myeloproliferative diseases (myelofibrosis, CMML) 8. Multiple Myeloma with relapse after a prior autologous transplant or eligible for allogeneic HSCT based on other risk factors

Exclusion criteria

* not be excluded on basis of sex, racial, or ethnic backgrounds * poor cardiac function: left ventricular ejection fraction \<40% * poor pulmonary function: FEV1 and FVC \<50% predicted * poor liver function: bilirubin \>2 mg/dl (not due to hemolysis, Gilbert's or primary malignancy) * poor renal function: Creatinine \>2.0mg/dl or creatinine clearance (calculated creatinine clearance is permitted) \< 40 mL/min based on Traditional Cockcroft-Gault formula: 140 - age (yrs) x Smaller of Actual Weight vs. Ideal Body Weight (kg) / 72 x Serum creatinine (mg/dl) * HIV-positive * prior allogeneic transplant * women of childbearing potential who currently are pregnant or who are not practicing adequate contraception * any debilitating medical or psychiatric illness which would preclude their giving informed consent or their receiving optimal treatment and follow-up

Design outcomes

Primary

MeasureTime frameDescription
Graft Rejection100 daysMeasurement of donor cells vs. recipient cells

Secondary

MeasureTime frameDescription
Overall Survival2 yearsNumber of participants still alive 2 years after transplant
Relapse Incidence2 yearsNumber of patients with disease reoccurrence at 1 and 2 years post-transplant
GVHD Incidence100 daysThe number of participants that developed graft-versus-host-disease before or at 100 days after transplant

Countries

United States

Participant flow

Participants by arm

ArmCount
Reduced-Intensity Mismatched Transplant
Fludarabine, Melphalan & Post-transplant cyclophosphamide Fludarabine: fludarabine (30mg/m2) given every day starting on Day -6 through Day -2; Melphalan Cyclophosphamide: cyclophosphamide (50mg/kg) given every day starting on Day 3 through Day 4. peripheral blood stem cell transplant
25
Total25

Baseline characteristics

CharacteristicReduced-Intensity Mismatched Transplant
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
3 Participants
Age, Categorical
Between 18 and 65 years
22 Participants
Age, Continuous57 years
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
25 participants
Sex: Female, Male
Female
13 Participants
Sex: Female, Male
Male
12 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
3 / 25
other
Total, other adverse events
25 / 25
serious
Total, serious adverse events
23 / 25

Outcome results

Primary

Graft Rejection

Measurement of donor cells vs. recipient cells

Time frame: 100 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Reduced-Intensity Mismatched TransplantGraft Rejection3 Participants
Secondary

GVHD Incidence

The number of participants that developed graft-versus-host-disease before or at 100 days after transplant

Time frame: 100 days

ArmMeasureGroupValue (NUMBER)
Reduced-Intensity Mismatched TransplantGVHD IncidenceGrades II to IV acute GVHD20 percentage of patients
Reduced-Intensity Mismatched TransplantGVHD IncidenceGrades III to IV acute GVHD8 percentage of patients
Reduced-Intensity Mismatched TransplantGVHD IncidenceModerate chronic GVHD16 percentage of patients
Reduced-Intensity Mismatched TransplantGVHD IncidenceSevere chronic GVHD12 percentage of patients
Secondary

Overall Survival

Number of participants still alive 2 years after transplant

Time frame: 2 years

ArmMeasureGroupValue (NUMBER)
Reduced-Intensity Mismatched TransplantOverall Survival1 yr post-transplant68 percentage of patients
Reduced-Intensity Mismatched TransplantOverall Survival2 yr post-transplant56 percentage of patients
Secondary

Relapse Incidence

Number of patients with disease reoccurrence at 1 and 2 years post-transplant

Time frame: 2 years

ArmMeasureGroupValue (NUMBER)
Reduced-Intensity Mismatched TransplantRelapse Incidence1 yr post-transplant24 percentage of patients
Reduced-Intensity Mismatched TransplantRelapse Incidence2 yr post-transplant36 percentage of patients

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