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A Study of Haploidentical Bone Marrow Transplant for Patients With Hematologic Malignancies

A Phase 2 Study of Nonmyeloablative Conditioning With Transplantation of Partially Human Leukocyte Antigen (HLA)-Mismatched Bone Marrow and Post-transplant Cyclophosphamide for Patients With Hematologic Malignancies

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02623439
Enrollment
10
Registered
2015-12-07
Start date
2012-09-21
Completion date
2023-01-01
Last updated
2025-11-10

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

Conditions

Hematologic Malignancies

Keywords

hematologic malignancies

Brief summary

The primary objective is to determine overall survival 180 days after transplantation involving HLA-haploidentical stem cell/bone marrow graft, and post-transplant Cy.

Detailed description

Study Design: This is a single center Phase 2 study of myeloablative (MA) and nonmyeloablative (NMA) conditioning, transplantation of partially HLA-mismatched bone marrow or peripheral blood stem cells and post-transplantation cyclophosphamide (Cy) in patients with hematologic malignancies including: 1. Acute lymphoblastic leukemia/lymphoma, acute myelogenous leukemia, and Burkitt's lymphoma in remission. 2. Relapsed lymphoma, including marginal zone B cell lymphoma, follicular lymphoma, and chemotherapy-sensitive large-cell or Hodgkin lymphoma. 3. Myelodysplastic Syndrome (MDS) 4. Blastic plasmacytoid dendritic cell neoplasm Primary Objective: The primary objective is to determine overall survival 180 days after transplantation involving Myeloablative and Non myeloablative conditioning, HLA-haploidentical marrow or peripheral blood stem cell grafts, and post-transplant Cyclophosphamide as GVHD prophylaxis. Secondary Objectives: Secondary objectives include estimating overall and progression-free survival at 100 days, 180 days, and one year after transplantation, treatment-related mortality, incidence of neutrophil and platelet recovery or engraftment, incidence of graft failure, cumulative incidence of acute and chronic Graft versus Host Disease (GVHD), incidence of infections, and cumulative incidence of relapse/progression. The investigators will also examine the amount of time to transplant (day of unrelated search initiation to day 0).

Interventions

DRUGCyclophosphamide 50 mg/kg IV Days 3 and 4 post transplant

Cyclophosphamide 50 mg/kg IV Days 3 and 4 post transplant

Sponsors

University of California, San Diego
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Age: Subjects 18-70 years old. 2. Donor must be 18 years of age. 3. HLA typing will be performed at high resolution. A minimum match of 5 out of 10 is required. 4. Patients must have received multi-agent chemotherapy within 3 months of consent date (measured from the start date of chemotherapy). 5. Acute Leukemias. * Acute Lymphoblastic Leukemia in high risk 1st complete response (CR1) * Acute Myelogenous Leukemia in high risk 1st complete response (CR1) * Acute Leukemias in 2nd or subsequent Complete Response (CR) * Biphenotypic/Undifferentiated Leukemias in 1st or subsequent Complete Response (CR). 6. Burkitt's lymphoma: second or subsequent Complete Response (CR). 7. Lymphoma 8. Patients with adequate physical function 9. Performance status: Karnofsky score 70-100%.

Design outcomes

Primary

MeasureTime frameDescription
Overall SurvivalDay 180180 days after transplantation

Countries

United States

Participant flow

Participants by arm

ArmCount
Cyclophosphamide Post BMT
Cyclophosphamide 50 mg/kg IV Days 3 and 4 post transplant Cyclophosphamide 50 mg/kg IV Days 3 and 4 post transplant: Cyclophosphamide 50 mg/kg IV Days 3 and 4 post transplant
8
Total8

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyScreen Failure1
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicCyclophosphamide Post BMT
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
2 Participants
Region of Enrollment
United States
8 participants
Sex: Female, Male
Female
3 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
5 / 8
other
Total, other adverse events
8 / 8
serious
Total, serious adverse events
5 / 8

Outcome results

Primary

Overall Survival

180 days after transplantation

Time frame: Day 180

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
cyclophosphamide post BMTOverall Survival3 Participants

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