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Optimizing Haploidentical Aplastic Anemia Transplantation (BMT CTN 1502)

Optimizing Haploidentical Aplastic Anemia Transplantation (CHAMP) (BMT CTN 1502)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02918292
Acronym
CHAMP
Enrollment
32
Registered
2016-09-28
Start date
2017-07-03
Completion date
2021-08-17
Last updated
2026-03-31

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

Conditions

Severe Aplastic Anemia

Keywords

Haploidentical Bone Marrow, Hematopoietic Stem Cell Transplant (HSCT), Severe Aplastic Anemia (SAA), Antithymocyte Globulin (ATG)

Brief summary

This study is a prospective, multicenter phase II study with patients receiving haploidentical transplantation for Severe Aplastic Anemia (SAA). The primary objective is to assess overall survival (OS) at 1 year post-hematopoietic stem cell transplantation (HSCT).

Detailed description

Acquired SAA is a rare bone marrow failure disorder with an estimated annual incidence of 2 cases per million and with over 600 new cases in the United States each year. A major challenge in treating acquired SAA is the management of patients who are refractory to immunosuppressant therapy (IST) or have relapsed after IST. HSCT is the only curative option for these patients but many are ineligible because they lack a suitable donor. The Blood and Marrow Transplant Clinical Trials Network (BMT CTN) seeks to increase options for these patients by using novel therapeutic strategies of GVHD prophylaxis with PTCy to expand the donor pool to include haploidentical donors. The goal of this protocol is to test whether optimized approaches using haploidentical donors will achieve acceptable outcomes in SAA patients.

Interventions

Administration of ATG will be 0.5 mg/kg IV on Day -9 over 6 hours and 2 mg/kg IV on Days -8 and -7 over 4 hours.

DRUGFludarabine

Fludarabine dose will be 30 mg/m\^2 IV daily for 5 days from Day -6 to Day -2.

DRUGCyclophosphamide

Cyclophosphamide dose will be 14.5 mg/kg IV daily for 2 days (Day -6 to Day -5) prior to transplantation and 50 mg/kg IV daily for 2 days (Day +3 to Day +4) after transplantation.

RADIATIONTotal Body Irradiation (TBI)

TBI is to be delivered in a single dose of 200 cGy on Day -1.

PROCEDUREHaplo HSCT

Eligible patients without a fully matched related or unrelated donor available will undergo haploidentical bone marrow transplant.

DRUGTacrolimus

Tacrolimus should be started on Day +5 and administered to maintain a level of 10-15 ng/mL.

DRUGMycophenolate mofetil (MMF)

MMF dose will be 15 mg/kg PO three times a day (TID) up to 1 gm TID (or IV equivalent) starting on Day +5.

DRUGG-CSF

G-CSF will be given IV or SQ starting on Day +5 at 5 mcg/kg/day until ANC is \> 1500 for 3 days.

Sponsors

Medical College of Wisconsin
Lead SponsorOTHER
National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH
Blood and Marrow Transplant Clinical Trials Network
CollaboratorNETWORK
National Marrow Donor Program
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Patient is \< 75 years of age at time of enrollment. 2. Confirmed diagnosis of SAA, either from initial diagnosis or follow-up assessments, defined as: 1. Bone marrow cellularity \< 25% or marrow cellularity \< 50% but with \< 30% residual hematopoietic cells. 2. Two out of three of the following (in peripheral blood): Neutrophils \< 0.5 x10\^9/L, Platelets \< 20 x10\^9/L, or Reticulocyte count \< 20 x10\^9/L (\<60 x 10\^9/L using an automated analysis) 3. No suitable fully matched related sibling donor (6/6 match for human leukocyte antigen (HLA)-A and B at intermediate or high resolution and DRB1 at high resolution using DNA-based typing) available. 4. Failed at least one trial of immunosuppressive therapy (IST) by being refractory or having relapsed. IST could have included ATG based regimens, calcineurin inhibitors and/or other higher dose therapy directed at the treatment of primary SAA. 5. Available relative of the patient who is a haploidentical match, including biological parents, siblings or half siblings, children, uncles/aunts, first cousins, etc. Eligible haploidentical donors will have 2-4 mismatches if HLA-A, -B, -C, and -DRB1 typing is used; 2-5 mismatches if HLA-A, -B, -C, -DRB1, and -DQB1 typing is used; and 2-6 mismatches if HLA-A, -B, -C, -DRB1, -DQB1, and -DPB1 typing is used. A unidirectional mismatch in either the graft versus host or host versus graft direction is considered a mismatch. The donor and recipient must demonstrate that they are a full haplotype match by being identical at a minimum of one allele (at high resolution DNA-based typing) at the following genetic loci: HLA-A, -B, -C, and DRB1 if 8 allele typing is used; HLA-A, -B, -C, -DRB1, and -DQB1 if 10 allele typing is used; and HLA-A, -B, -C, -DRB1-, DQB1, and -DPB1 is 12 allele typing is used by the local center. See Section 2.4 for additional information. 6. Patient and/or legal guardian must sign informed consent for HSCT. 7. The haplo donor and/or legal guardian must be able to sign informed consent documents. 8. The potential haplo donor must be willing and able to donate bone marrow. 9. The weight of the haplo donor must be ≥ 20 kg. 10. Adequate organ function defined as: 1. Cardiac: Left ventricular ejection fraction (LVEF) at rest ≥ 40%. For patients aged \< 13 years, shortening fraction (SF) ≥ 26% by echocardiogram or Multi Gated Acquisition Scan (MUGA) may be substituted for LVEF. 2. Hepatic: Total bilirubin \< 3.0 x the upper limit of normal (ULN) for age (patients who have been diagnosed with Gilbert's Disease are allowed to exceed this limit) and alanine aminotransferase (ALT) and aspartate aminotransferase (AST) \< 5.0 x ULN for age. 3. Renal: For patients \> 13.0 years of age at the time of enrollment: estimated creatinine clearance \> 50 mL/minute (using the Cockcroft-Gault formula and actual body weight). For patients \< 13.0 years of age at enrollment: Glomerular Filtration Rate (GFR) estimated by the updated Schwartz formula ≥ 90 mL/min/1.73 m2. If the estimated GFR is \< 90 mL/min/1.73 m\^2, then renal function must be measured by 24-hour creatinine clearance or nuclear GFR, and must be \> 50 mL/min/1.73 m\^2. 4. Pulmonary: For patients \> 13.0 years of age: Diffusing capacity of the lung for carbon monoxide (DLCO) (corrected/adjusted for hemoglobin) \> 40% and forced expiratory volume in one second (FEV1) \> 50% predicted (without administration of bronchodilator) and forced vital capacity (FVC) \> 50% predicted. For patients \< 13.0 years of age unable to perform pulmonary function tests (PFT) due to age or developmental ability: (1) no evidence of dyspnea at rest and (2) no need for supplemental oxygen and (3) O2 saturation \> 92% on room air at sea level (with lower levels allowed at higher elevations per established center standard of care (e.g., Utah, 4,200 feet above sea level, does not give supplemental oxygen unless below 90%)). 11. Karnofsky or Lansky performance status ≥ 60%. 12. Females and males of childbearing potential must agree to practice 2 effective methods of contraception at the same time or agree to abstinence.

Exclusion criteria

1. Inherited bone marrow failure syndromes such as Fanconi anemia must be ruled out according to center standard. 2. Clonal cytogenetic abnormalities consistent with pre-myelodysplastic syndrome (pre-MDS) or MDS on marrow examination (e.g. Monosomy 7). 3. Presence of anti-donor HLA antibodies (positive anti-donor HLA antibody is defined as a positive cross-match test of any titer by complement-dependent cytotoxicity or flow cytometric testing or the presence of anti-donor HLA antibody to the high expression loci HLA-A, B, C, DRB1, or DPB1 with mean fluorescence intensity (MFI) \> 1000 by solid phase immunoassay). 4. Prior allogeneic stem cell transplant. 5. Prior solid organ transplant. 6. Known life-threatening reaction (i.e., anaphylaxis) to Thymoglobulin® that would prohibit use for the patient as this study requires use of the Thymoglobulin® preparation of ATG. 7. Uncontrolled bacterial, viral, or fungal infection at the time of enrollment. Uncontrolled is defined as currently taking medication and with progression or no clinical improvement on adequate medical treatment. 8. Seropositive for the human immunodeficiency virus (HIV). 9. Active Hepatitis B or C determined by a detectable viral load of HBV or HCV. 10. Female patients who are pregnant (per institutional practice) or breast-feeding. 11. Prior malignancies except resected basal cell carcinoma or treated cervical carcinoma in situ. Cancer treated with curative intent \> 5 years previously will be allowed. Cancer treated with curative intent ≤ 5 years previously will not be allowed unless approved by the Protocol Chairs and/or Protocol Officer. 12. Alemtuzumab or ATG within 2 weeks of enrollment.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Overall Survival (OS)1 yearOverall survival (OS) is the primary endpoint of this study. The time to this event is the time from transplant to death from any cause or last follow-up or 1 year from transplant, whichever occurs first. The one-year OS probability and its 95% confidence interval were estimated using the Kaplan-Meier estimator and Greenwood's formula.

Secondary

MeasureTime frameDescription
Percentage of Participants With Neutrophil RecoveryDay 28 and 56Neutrophil recovery is achieving an absolute neutrophil count (ANC) \> 0.5 x10\^9/L for three consecutive measurements on different days, with the first of the three days being defined as the day of neutrophil engraftment. The cumulative percentage of neutrophil engraftment was estimated with a 95% confidence interval using the Aalen-Johansen estimator with death prior to neutrophil engraftment treated as a competing risk.
Percentage of Participants With Platelet RecoveryDay 100Platelet recovery is defined by achieving a platelet count \> 20 x 10\^9/L with no platelet transfusions in the preceding seven days. The first day of the sustained platelet count will be defined as the day of platelet engraftment. The cumulative percentage of platelet engraftment was estimated with a 95% confidence interval using the Aalen-Johansen estimator with death prior to platelet engraftment treated as a competing risk.
Participants Alive With Sustained Engraftment1 yearBeing alive and engrafted is defined as not having experienced death, primary graft failure, or secondary graft failure. Donor cell engraftment is defined as donor chimerism greater than or equal to 5% on or after Day 56 after transplantation. Chimerism may be evaluated in whole blood or blood cell fractions, including CD3 and CD33 or CD15 fractions. For this protocol, lineage-specific, myeloid, and T cell chimerisms are required. This endpoint was adjudicated by the Endpoint Review Committee (ERC) and ERC data was used for the analysis.
Percentage of Participants With Graft-Failure-Free Survival1 yearEvents for Graft-Failure-Free Survival (GFFS) including death, primary graft failure, secondary graft failure. The time to this event is the time from transplant to death from any cause, or graft failure, or last follow-up, or 1 year from transplant, whichever occurs first. For patients experiencing primary graft failure, Day 0.1 was used for primary graft failure event date to count the event in. The one-year GFFS probability and its 95% confidence interval were estimated using the Kaplan-Meier estimator and Greenwood's formula.
Percentage of Participants With Primary Graft FailureDay 56Primary graft failure is defined by the lack of neutrophil engraftment by Day 56 post-HSCT or failure to achieve at least 5% donor chimerism (whole blood or marrow) on any measurements up to and including Day +56. For this protocol, lineage-specific, myeloid, and T cell chimerisms are required. Myeloid engraftment might not proceed at the same rate as T cell engraftment. If myeloid has greater than or equal to 5% donor, even if T cell compartment does not, this is not considered primary graft failure. Secondary graft failure is defined by initial neutrophil engraftment (ANC greater than or equal to 0.5 x 10\^8/L measured for 3 consecutive measurements on different days) followed by sustained subsequent decline in ANC to less than 0.5 x 10\^9/L for three consecutive measurements on different days or initial whole blood or marrow donor chimerism greater than or equal to 5%, but then declining to less than 5% on subsequent measurements or second infusion/transplant given for graft failure.
Percentage of Participants With Secondary Graft Failure1 yearSecondary graft failure is defined as any one of the following: 1. Initial neutrophil engraftment (ANC greater than or equal to 0.5 x10\^9/L measured for three consecutive measurements on different days) followed by sustained subsequent decline in ANC to less than 0.5 x 10\^9/L for three consecutive measurements on different days; 2. Initial whole blood or marrow donor chimerism greater than or equal to 5%, but then declining to less than 5% on subsequent measurements; 3. Second infusion/transplant given after Day 56 for graft failure.
Participants Alive With Autologous Recovery1 yearAutologous recovery is defined as ANC \> 0.5 x 10\^9/L and transfusion independence but with \< 5% donor chimerism (whole blood or m. arrow). This endpoint was reviewed and adjudicated by ERC. The analysis is based on ERC data.
Percentage of Participants With Acute Graft-vs-host-disease (GVHD)Day 100Acute GVHD is graded by consensus grading (Przepiorka 1995) per BMTCTN manual of procedures (MOP). Acute GVHD is graded by consensus grading (Przepiorka 1995) per BMTCTN manual of procedures (MOP). The time of onset of grades II-IV and grades III-IV acute GVHD were recorded. This endpoint is evaluated through 100 days post-transplant. Cumulative percentage of acute GVHD post-transplant are estimated using the cumulative incidence function, treating death prior to acute GVHD as the competing risk.
Participants With Maximum Acute GVHDDay 100Acute GVHD is graded by consensus grading (Przepiorka 1995) per BMTCTN manual of procedures (MOP). Acute GVHD grading is performed by the consensus conference criteria (Przepiorka et al. 1995) with higher grade indicating worse outcomes. Grade I acute GVHD is defined as Skin stage of 1-2 and stage 0 for both GI and liver organs. Grade II is stage 3 of skin, or stage 1 of GI, or stage 1 of liver. Grade III is stage 2-4 for GI, or stage 2-3 of liver. Grade IV is stage 4 of skin, or stage 4 of liver. Maximum grade of acute GVHD through 100 days post transplant is reported.
Percentage of Participants With Chronic GVHD1 yearThe event for this secondary endpoint is any chronic GVHD based on 2014 NIH Consensus Criteria. This includes mild, moderate and severe chronic GVHD. The analyses of Chronic GVHD use the site-reported data. The cumulative percentage of chronic GVHD is computed using the cumulative incidence function, treating death prior to chronic GVHD as a competing risk. Eight organs will be scored on a 0-3 scale to reflect degree of chronic GVHD involvement. Liver and pulmonary function test results and use of systemic therapy for treatment of chronic GVHD will also be recorded. This secondary endpoint of chronic GVHD will include mild, moderate and severe chronic GVHD based on NIH Consensus Criteria.
Number of Participants Experiencing Chronic GVHD With Maximum Severity1 yearThe event for this secondary endpoint is any chronic GVHD based on 2014 NIH Consensus Criteria. Eight organs will be scored on a 0-3 scale to reflect degree of chronic GVHD involvement. Liver and pulmonary function test results and use of systemic therapy for treatment of chronic GVHD will also be recorded. The overall chronic GVHD severity is based on the eight organs score. The maximin severity level of chronic GVHD include mild, moderate and severe.
Immune Reconstitution of Flow CytometryBaseline, Days 100, 180, and 365Quantitative assessments of peripheral blood CD3, CD4, CD8, CD19, and CD56 positive lymphocytes will be done through flow cytometric analysis.
Immune Reconstitution of Quantitative Immunoglobulinsbaseline and 1-yearQuantitative immunoglobulins of IgA, IgG, IgM were done at baseline and 1-year post-transplant.
Participants With Infections of Maximum Grade 2 and Grade 31 YearNumber of participants who reported the Maximum Infection Severity of Grade 2 and Grade 3. Only grade 2 and grade 3 infections occurring post transplantation were reported on the study. Grade 2 and grade 3 infections are defined by the BMT CTN Technical MOP. Higher infection grade indicates worse infection severity. The infection grading criteria are published online (https://bmtctn.net/administrative-manual-procedures-moppolicy-guidelines). Severity of grade 1, 2 and 3 are described for bacterial, fungal, viral, parasitic, and nonmicrobiological infections. For example, grade 2 fungal infections are defined as candida esophagitis, or proven or probably fungal sinusistis confirmed radiologically without orbital, brain or bone involvement. Grade 3 fungal infections are defined as Fungemia including candidemia, Proven or probably invasive fungal infections, Disseminated infections with histoplasmosis, blastomycosis, coccidiomycosis, or Cryptococcus, or Pneumocystis jiroveci pneumonia.
Frequencies of Infections Categorized by Infection Type1 YearThe number of systemic infections is reported. Infections are categorized by infection type. A participant can report multiple types of infections, so the categories are not mutually exclusive for participants. All grade 2 and grade 3 infections, as defined by the BMT CTN Technical MOP, occurring post transplantation were reported on the study.
Percentage of Participants With Cytomegalovirus (CMV), Epstein Barr Virus (EBV) or Post-Transplant Lymphoproliferative Disease (PTLD)1 YearCMV viremia and disease, EBV viremia, and PTLD are monitored and reported per protocol. The cumulative percentage of each outcome was estimated with a 95% confidence interval using the Aalen-Johansen estimator with death prior to event treated as a competing risk.
Participants With Grade 3-5 Toxicities by SOC1 YearToxicities are evaluated for the study participants at Day 28, Day 56, Day 100, Day 180 and Day 365 post-transplant and graded using NCI Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Grade 3-5 toxicities are reported with higher grade indicating worse outcomes. Toxicities are summarized here by system organ class (SOC). A participant can report multiple toxicities, so the categories are not mutually exclusive for participants.
Health Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)Baseline, Day 100, 6 Months, and 1 YearHR-QoL will be measured using patient reported surveys at baseline and then at Day 100, Day 180, and Day 365 post-transplant. The MOS SF-36 is used for adult participants (\> 18 years). MOS SF-36 is a 36-item general assessment of HR-QoL with eight components: Physical Functioning, Role Physical, Pain Index, General Health Perceptions, Vitality, Social Functioning, Role Emotional, and Mental Health Index. Each domain is positively scored with higher scores associated with positive outcome. The scale is 0 to 100 where 0 is maximum disability and 100 is no disability. The Physical Component Summary (PCS) and Mental Component Summary (MCS) were used as the outcome measures in summarizing the SF-36 data for this study. These two summaries have the same score scale and Interpretation.
Health Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModuleBaseline, Day 100, 6 Months, and 1 YearHR-QoL will be measured using patient reported surveys at baseline and then at Day 100, Day 180, and Day 365 post-transplant. The PedsQL Stem Cell Transplant Module for pediatric participants (8 years through 18 years). The PedsQL Stem Cell Transplant Module is a 46-item instrument that measures HR-QoL in children and adolescents undergoing hematopoietic stem cell transplant, and is developmentally appropriate for self-report in ages 8 through 18 years. The score ranges from 0 to 100 with higher scores associated with positive outcome.

Countries

United States

Contacts

STUDY_DIRECTORMary Horowitz, MD, MS

Center for International Blood and Marrow Transplant Research

Participant flow

Recruitment details

Participants were recruited from 14 centers between May 2017 and August 2020. The study opened to accrual on May 19, 2017 with 26 centers activated for enrollment. The study closed to accrual on August 31, 2020 and study completed on August 17, 2021. The study was initially designed to enroll participants into Unrelated Cord Blood and Haploidentical cohorts. Due to lack of accrual, the Unrelated Cord Blood cohort was closed for accrual per DSMB recommendation with no patients enrolled.

Participants by arm

ArmCount
Haplo Bone Marrow HSCT
Patients will be treated with a preparative regimen of Antithymocyte Globulin (ATG) (4.5 mg/kg), fludarabine (150 mg/m\^2), cyclophosphamide (29 mg/kg), and low dose total body irradiation (TBI) (200 cGy) before undergoing the haplo HSCT. GVHD prophylaxis will be with post-HSCT cyclophosphamide (100 mg/kg), tacrolimus, and mycophenolate mofetil (MMF). G-CSF will be administered post-transplant. Antithymocyte Globulin (ATG): Administration of ATG will be 0.5 mg/kg IV on Day -9 over 6 hours and 2 mg/kg IV on Days -8 and -7 over 4 hours. Fludarabine: Fludarabine dose will be 30 mg/m\^2 IV daily for 5 days from Day -6 to Day -2. Cyclophosphamide: Cyclophosphamide dose will be 14.5 mg/kg IV daily for 2 days (Day -6 to Day -5) prior to transplantation and 50 mg/kg IV daily for 2 days (Day +3 to Day +4) after transplantation. Total Body Irradiation (TBI): TBI is to be delivered in a single dose of 200 cGy on Day -1. Haplo HSCT: Eligible patients without a fully matched related or unrelated donor available will undergo haploidentical bone marrow transplant. Tacrolimus: Tacrolimus should be started on Day +5 and administered to maintain a level of 10-15 ng/mL. Mycophenolate mofetil (MMF): MMF dose will be 15 mg/kg PO three times a day (TID) up to 1 gm TID (or IV equivalent) starting on Day +5. G-CSF: G-CSF will be given IV or SQ starting on Day +5 at 5 mcg/kg/day until ANC is \> 1500 for 3 days.
31
Total31

Baseline characteristics

CharacteristicHaplo Bone Marrow HSCT
Age, Continuous31.3 years
STANDARD_DEVIATION 23.2
CD34 Count213.8 x10^6 cells
STANDARD_DEVIATION 139.2
CD34 Count per kg Recipient Body Weight4.7 × 10^6 cells/kg
STANDARD_DEVIATION 2.7
CD3 Count862.0 cells/uL
STANDARD_DEVIATION 631.5
CD3 Count per kg Recipient Body Weight21.9 cells/uL per kg
STANDARD_DEVIATION 20.3
Creatinine clearance level100.9 mL/min
STANDARD_DEVIATION 36.2
Donor age37.9 years
STANDARD_DEVIATION 10.8
Donor Blood Type
A-
1 Participants
Donor Blood Type
A+
10 Participants
Donor Blood Type
AB+
1 Participants
Donor Blood Type
B+
6 Participants
Donor Blood Type
Missing
2 Participants
Donor Blood Type
O-
2 Participants
Donor Blood Type
O+
9 Participants
Donor Ethnicity
Hispanic or Latino
6 Participants
Donor Ethnicity
Not Hispanic or Latino
25 Participants
Donor gender
Female
18 Participants
Donor gender
Male
13 Participants
Donor Race
Asian
4 Participants
Donor Race
Black or African American
7 Participants
Donor Race
Hawaiian/Pacific Islander
1 Participants
Donor Race
Unknown
3 Participants
Donor Race
White
16 Participants
Donor relationship31 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Interval from Diagnosis to Transplant23.8 months
STANDARD_DEVIATION 26.5
Lansky/Karnofsky Performance Score
100
5 Participants
Lansky/Karnofsky Performance Score
70
5 Participants
Lansky/Karnofsky Performance Score
80
8 Participants
Lansky/Karnofsky Performance Score
90
13 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
4 Participants
Race (NIH/OMB)
Black or African American
7 Participants
Race (NIH/OMB)
More than one race
1 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
16 Participants
RBC Count2.7 million/uL
STANDARD_DEVIATION 0.4
Recipient Blood Type
A-
3 Participants
Recipient Blood Type
A+
8 Participants
Recipient Blood Type
AB-
1 Participants
Recipient Blood Type
AB+
3 Participants
Recipient Blood Type
B+
5 Participants
Recipient Blood Type
Missing
1 Participants
Recipient Blood Type
O+
10 Participants
Recipient-to-Donor HLA Match Scores
4/8
18 Participants
Recipient-to-Donor HLA Match Scores
5/8
8 Participants
Recipient-to-Donor HLA Match Scores
6/8
3 Participants
Recipient-to-Donor HLA Match Scores
7/8
2 Participants
Serum Bilirubin level0.8 mg/dL
STANDARD_DEVIATION 0.4
Sex: Female, Male
Female
12 Participants
Sex: Female, Male
Male
19 Participants
TNC count204.9 x10^8 cells
STANDARD_DEVIATION 93.3
TNC per kg Recipient Body Weight4.4 × 10^8 cells/kg
STANDARD_DEVIATION 1.7

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
7 / 32
other
Total, other adverse events
0 / 32
serious
Total, serious adverse events
1 / 32

Outcome results

Primary

Percentage of Participants With Overall Survival (OS)

Overall survival (OS) is the primary endpoint of this study. The time to this event is the time from transplant to death from any cause or last follow-up or 1 year from transplant, whichever occurs first. The one-year OS probability and its 95% confidence interval were estimated using the Kaplan-Meier estimator and Greenwood's formula.

Time frame: 1 year

Population: Analysis Population includes transplanted participants.

ArmMeasureValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Overall Survival (OS)80.6 percentage of participants
Secondary

Frequencies of Infections Categorized by Infection Type

The number of systemic infections is reported. Infections are categorized by infection type. A participant can report multiple types of infections, so the categories are not mutually exclusive for participants. All grade 2 and grade 3 infections, as defined by the BMT CTN Technical MOP, occurring post transplantation were reported on the study.

Time frame: 1 Year

Population: Analysis Population includes transplanted participants.

ArmMeasureGroupValue (NUMBER)
Haplo Bone Marrow HSCTFrequencies of Infections Categorized by Infection TypeBacterial infection26 infections
Haplo Bone Marrow HSCTFrequencies of Infections Categorized by Infection TypeViral infection32 infections
Haplo Bone Marrow HSCTFrequencies of Infections Categorized by Infection TypeFungal infection3 infections
Haplo Bone Marrow HSCTFrequencies of Infections Categorized by Infection TypeProtozoal infection0 infections
Haplo Bone Marrow HSCTFrequencies of Infections Categorized by Infection TypeOther infection3 infections
Secondary

Health Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)

HR-QoL will be measured using patient reported surveys at baseline and then at Day 100, Day 180, and Day 365 post-transplant. The MOS SF-36 is used for adult participants (\> 18 years). MOS SF-36 is a 36-item general assessment of HR-QoL with eight components: Physical Functioning, Role Physical, Pain Index, General Health Perceptions, Vitality, Social Functioning, Role Emotional, and Mental Health Index. Each domain is positively scored with higher scores associated with positive outcome. The scale is 0 to 100 where 0 is maximum disability and 100 is no disability. The Physical Component Summary (PCS) and Mental Component Summary (MCS) were used as the outcome measures in summarizing the SF-36 data for this study. These two summaries have the same score scale and Interpretation.

Time frame: Baseline, Day 100, 6 Months, and 1 Year

Population: Analysis Population includes transplanted adult participants.

ArmMeasureGroupValue (MEAN)Dispersion
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)PCS at Baseline37.9 score on a scaleStandard Deviation 7.9
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)PCS at Day 10041.8 score on a scaleStandard Deviation 11.6
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)PCS at 6 Months44.3 score on a scaleStandard Deviation 9.9
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)PCS at 1 Year47.5 score on a scaleStandard Deviation 8.1
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)PCS Change at Day 100 from baseline4 score on a scaleStandard Deviation 13.8
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)PCS Change at 6 Months from baseline6.6 score on a scaleStandard Deviation 11.6
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)PCS Change at 1 Year from baseline10.4 score on a scaleStandard Deviation 6.6
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)MCS at Baseline45.7 score on a scaleStandard Deviation 13.2
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)MCS at Day 10049.4 score on a scaleStandard Deviation 14.2
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)MCS at 6 Months50.4 score on a scaleStandard Deviation 11.2
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)MCS at 1 Year48.6 score on a scaleStandard Deviation 14.9
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)MCS Change at Day 100 from baseline4.8 score on a scaleStandard Deviation 14
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)MCS Change at 6 Months from baseline6 score on a scaleStandard Deviation 10.2
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - Medical Outcomes Study Short Form (MOS SF-36)MCS Change at 1 Year from baseline2.2 score on a scaleStandard Deviation 10.7
Secondary

Health Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant Module

HR-QoL will be measured using patient reported surveys at baseline and then at Day 100, Day 180, and Day 365 post-transplant. The PedsQL Stem Cell Transplant Module for pediatric participants (8 years through 18 years). The PedsQL Stem Cell Transplant Module is a 46-item instrument that measures HR-QoL in children and adolescents undergoing hematopoietic stem cell transplant, and is developmentally appropriate for self-report in ages 8 through 18 years. The score ranges from 0 to 100 with higher scores associated with positive outcome.

Time frame: Baseline, Day 100, 6 Months, and 1 Year

Population: Analysis Population includes transplanted pediatric participants. Four participants are under age 8 and not eligible for PedsQL assessments.

ArmMeasureGroupValue (MEAN)Dispersion
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModulePedsQL at Baseline72.8 score on a scaleStandard Deviation 13.6
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModulePedsQL at Day 10086.5 score on a scaleStandard Deviation 15.4
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModulePedsQL at 6 Months84.4 score on a scaleStandard Deviation 12.5
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModulePedsQL at 1 Year93.3 score on a scaleStandard Deviation 6.9
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModulePedsQL Change at Day 100 from baseline11.4 score on a scaleStandard Deviation 16.2
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModulePedsQL Change at 6 Months from baseline9.5 score on a scaleStandard Deviation 15.4
Haplo Bone Marrow HSCTHealth Related Quality of Life (HR-QoL) - PedsQL Stem Cell Transplant ModulePedsQL Change at 1 Year from baseline18.7 score on a scaleStandard Deviation 11.1
Secondary

Immune Reconstitution of Flow Cytometry

Quantitative assessments of peripheral blood CD3, CD4, CD8, CD19, and CD56 positive lymphocytes will be done through flow cytometric analysis.

Time frame: Baseline, Days 100, 180, and 365

Population: Analysis Population includes transplanted participants with available data at each time point. All transplanted participants contribute data for this endpoint assessment, but not all participants provided all subsets of immune reconstitution data at each assessment time point. Only participants who had immune reconstitution results are assessed at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD8 at Day 100272.9 cells/uLStandard Deviation 318.5
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD3 at Baseline862 cells/uLStandard Deviation 631.5
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD3 at Day 100550.8 cells/uLStandard Deviation 844.1
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD3 at 6 Months640.5 cells/uLStandard Deviation 662.4
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD3 at 1 Year1121 cells/uLStandard Deviation 808.3
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD4 at Baseline434.1 cells/uLStandard Deviation 323.3
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD4 at Day 100122.3 cells/uLStandard Deviation 123.1
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD4 at 6 Months172.6 cells/uLStandard Deviation 119.8
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD4 at 1 Year472.7 cells/uLStandard Deviation 365.6
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD8 at Baseline326.9 cells/uLStandard Deviation 274.8
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD8 at 6 Months333.3 cells/uLStandard Deviation 409.1
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD8 at 1 Year569.7 cells/uLStandard Deviation 616.7
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD19 at Baseline106.2 cells/uLStandard Deviation 159.9
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD19 at Day 100221.1 cells/uLStandard Deviation 477.2
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD19 at 6 Months204.8 cells/uLStandard Deviation 173.4
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD19 at 1 Year264.6 cells/uLStandard Deviation 222.3
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD56 at Baseline124.6 cells/uLStandard Deviation 186.5
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD56 at Day 100237.6 cells/uLStandard Deviation 232.5
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD56 at 6 Months260.3 cells/uLStandard Deviation 228.6
Haplo Bone Marrow HSCTImmune Reconstitution of Flow CytometryCD56 at 1 Year293.2 cells/uLStandard Deviation 300.2
Secondary

Immune Reconstitution of Quantitative Immunoglobulins

Quantitative immunoglobulins of IgA, IgG, IgM were done at baseline and 1-year post-transplant.

Time frame: baseline and 1-year

Population: Analysis Population includes transplanted participants with available data at each time point.

ArmMeasureGroupValue (MEAN)Dispersion
Haplo Bone Marrow HSCTImmune Reconstitution of Quantitative ImmunoglobulinsIgA at Baseline172.3 mg/dLStandard Deviation 92.7
Haplo Bone Marrow HSCTImmune Reconstitution of Quantitative ImmunoglobulinsIgA at 1 Year111.6 mg/dLStandard Deviation 52.1
Haplo Bone Marrow HSCTImmune Reconstitution of Quantitative ImmunoglobulinsIgG at Baseline987.5 mg/dLStandard Deviation 343.2
Haplo Bone Marrow HSCTImmune Reconstitution of Quantitative ImmunoglobulinsIgG at 1 Year1004 mg/dLStandard Deviation 521.9
Haplo Bone Marrow HSCTImmune Reconstitution of Quantitative ImmunoglobulinsIgM at Baseline102.8 mg/dLStandard Deviation 48.4
Haplo Bone Marrow HSCTImmune Reconstitution of Quantitative ImmunoglobulinsIgM at 1 Year96 mg/dLStandard Deviation 85.2
Secondary

Number of Participants Experiencing Chronic GVHD With Maximum Severity

The event for this secondary endpoint is any chronic GVHD based on 2014 NIH Consensus Criteria. Eight organs will be scored on a 0-3 scale to reflect degree of chronic GVHD involvement. Liver and pulmonary function test results and use of systemic therapy for treatment of chronic GVHD will also be recorded. The overall chronic GVHD severity is based on the eight organs score. The maximin severity level of chronic GVHD include mild, moderate and severe.

Time frame: 1 year

Population: Analysis Population includes transplanted participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Haplo Bone Marrow HSCTNumber of Participants Experiencing Chronic GVHD With Maximum SeverityNone23 Participants
Haplo Bone Marrow HSCTNumber of Participants Experiencing Chronic GVHD With Maximum SeverityMild7 Participants
Haplo Bone Marrow HSCTNumber of Participants Experiencing Chronic GVHD With Maximum SeverityModerate1 Participants
Haplo Bone Marrow HSCTNumber of Participants Experiencing Chronic GVHD With Maximum SeveritySevere0 Participants
Secondary

Participants Alive With Autologous Recovery

Autologous recovery is defined as ANC \> 0.5 x 10\^9/L and transfusion independence but with \< 5% donor chimerism (whole blood or m. arrow). This endpoint was reviewed and adjudicated by ERC. The analysis is based on ERC data.

Time frame: 1 year

Population: Analysis Population includes transplanted participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Haplo Bone Marrow HSCTParticipants Alive With Autologous RecoveryYes, alive with autologous recovery0 Participants
Haplo Bone Marrow HSCTParticipants Alive With Autologous RecoveryNo, Death6 Participants
Haplo Bone Marrow HSCTParticipants Alive With Autologous RecoveryNo, Alive but not auto recovery25 Participants
Secondary

Participants Alive With Sustained Engraftment

Being alive and engrafted is defined as not having experienced death, primary graft failure, or secondary graft failure. Donor cell engraftment is defined as donor chimerism greater than or equal to 5% on or after Day 56 after transplantation. Chimerism may be evaluated in whole blood or blood cell fractions, including CD3 and CD33 or CD15 fractions. For this protocol, lineage-specific, myeloid, and T cell chimerisms are required. This endpoint was adjudicated by the Endpoint Review Committee (ERC) and ERC data was used for the analysis.

Time frame: 1 year

Population: Analysis Population includes transplanted participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Haplo Bone Marrow HSCTParticipants Alive With Sustained EngraftmentYes, alive and engrafted24 Participants
Haplo Bone Marrow HSCTParticipants Alive With Sustained EngraftmentPrimary graft failure4 Participants
Haplo Bone Marrow HSCTParticipants Alive With Sustained EngraftmentSecondary graft failure1 Participants
Haplo Bone Marrow HSCTParticipants Alive With Sustained EngraftmentDeath without graft failure2 Participants
Secondary

Participants With Grade 3-5 Toxicities by SOC

Toxicities are evaluated for the study participants at Day 28, Day 56, Day 100, Day 180 and Day 365 post-transplant and graded using NCI Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Grade 3-5 toxicities are reported with higher grade indicating worse outcomes. Toxicities are summarized here by system organ class (SOC). A participant can report multiple toxicities, so the categories are not mutually exclusive for participants.

Time frame: 1 Year

Population: Analysis Population includes transplanted participants.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCAbnormal Liver Symptoms7 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCBlood and Lymphatic Disorders1 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCCardiovascular Disorders15 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCChemistry/Investigations2 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCGI Disorders10 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCGeneral Disorders5 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCHemorrhagic Disorders3 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCHepatic Disorders6 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCImmune System Disorders1 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCMetabolism and Nutrition Disorders7 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCMusculoskeletal and Connective Tissue Disorders1 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCNervous System Disorders4 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCRenal Disorders5 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCRespiratory, Thoracic and Mediastinal Disorders8 Participants
Haplo Bone Marrow HSCTParticipants With Grade 3-5 Toxicities by SOCTotal (any of above SOC)23 Participants
Secondary

Participants With Infections of Maximum Grade 2 and Grade 3

Number of participants who reported the Maximum Infection Severity of Grade 2 and Grade 3. Only grade 2 and grade 3 infections occurring post transplantation were reported on the study. Grade 2 and grade 3 infections are defined by the BMT CTN Technical MOP. Higher infection grade indicates worse infection severity. The infection grading criteria are published online (https://bmtctn.net/administrative-manual-procedures-moppolicy-guidelines). Severity of grade 1, 2 and 3 are described for bacterial, fungal, viral, parasitic, and nonmicrobiological infections. For example, grade 2 fungal infections are defined as candida esophagitis, or proven or probably fungal sinusistis confirmed radiologically without orbital, brain or bone involvement. Grade 3 fungal infections are defined as Fungemia including candidemia, Proven or probably invasive fungal infections, Disseminated infections with histoplasmosis, blastomycosis, coccidiomycosis, or Cryptococcus, or Pneumocystis jiroveci pneumonia.

Time frame: 1 Year

Population: Analysis Population includes transplanted participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Haplo Bone Marrow HSCTParticipants With Infections of Maximum Grade 2 and Grade 3None12 Participants
Haplo Bone Marrow HSCTParticipants With Infections of Maximum Grade 2 and Grade 3Grade 212 Participants
Haplo Bone Marrow HSCTParticipants With Infections of Maximum Grade 2 and Grade 3Grade 37 Participants
Secondary

Participants With Maximum Acute GVHD

Acute GVHD is graded by consensus grading (Przepiorka 1995) per BMTCTN manual of procedures (MOP). Acute GVHD grading is performed by the consensus conference criteria (Przepiorka et al. 1995) with higher grade indicating worse outcomes. Grade I acute GVHD is defined as Skin stage of 1-2 and stage 0 for both GI and liver organs. Grade II is stage 3 of skin, or stage 1 of GI, or stage 1 of liver. Grade III is stage 2-4 for GI, or stage 2-3 of liver. Grade IV is stage 4 of skin, or stage 4 of liver. Maximum grade of acute GVHD through 100 days post transplant is reported.

Time frame: Day 100

Population: Analysis Population includes transplanted participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Haplo Bone Marrow HSCTParticipants With Maximum Acute GVHDNone23 Participants
Haplo Bone Marrow HSCTParticipants With Maximum Acute GVHDGrade I3 Participants
Haplo Bone Marrow HSCTParticipants With Maximum Acute GVHDGrade II5 Participants
Haplo Bone Marrow HSCTParticipants With Maximum Acute GVHDGrade III0 Participants
Haplo Bone Marrow HSCTParticipants With Maximum Acute GVHDGrade IV0 Participants
Secondary

Percentage of Participants With Acute Graft-vs-host-disease (GVHD)

Acute GVHD is graded by consensus grading (Przepiorka 1995) per BMTCTN manual of procedures (MOP). Acute GVHD is graded by consensus grading (Przepiorka 1995) per BMTCTN manual of procedures (MOP). The time of onset of grades II-IV and grades III-IV acute GVHD were recorded. This endpoint is evaluated through 100 days post-transplant. Cumulative percentage of acute GVHD post-transplant are estimated using the cumulative incidence function, treating death prior to acute GVHD as the competing risk.

Time frame: Day 100

Population: Analysis Population includes transplanted participants.

ArmMeasureValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Acute Graft-vs-host-disease (GVHD)16.1 percentage of participants
Secondary

Percentage of Participants With Chronic GVHD

The event for this secondary endpoint is any chronic GVHD based on 2014 NIH Consensus Criteria. This includes mild, moderate and severe chronic GVHD. The analyses of Chronic GVHD use the site-reported data. The cumulative percentage of chronic GVHD is computed using the cumulative incidence function, treating death prior to chronic GVHD as a competing risk. Eight organs will be scored on a 0-3 scale to reflect degree of chronic GVHD involvement. Liver and pulmonary function test results and use of systemic therapy for treatment of chronic GVHD will also be recorded. This secondary endpoint of chronic GVHD will include mild, moderate and severe chronic GVHD based on NIH Consensus Criteria.

Time frame: 1 year

Population: Analysis Population includes transplanted participants.

ArmMeasureValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Chronic GVHD25.8 percentage of participants
Secondary

Percentage of Participants With Cytomegalovirus (CMV), Epstein Barr Virus (EBV) or Post-Transplant Lymphoproliferative Disease (PTLD)

CMV viremia and disease, EBV viremia, and PTLD are monitored and reported per protocol. The cumulative percentage of each outcome was estimated with a 95% confidence interval using the Aalen-Johansen estimator with death prior to event treated as a competing risk.

Time frame: 1 Year

Population: Analysis Population includes transplanted participants.

ArmMeasureGroupValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Cytomegalovirus (CMV), Epstein Barr Virus (EBV) or Post-Transplant Lymphoproliferative Disease (PTLD)Cumulative Percentage of Participants with EBV9.7 percentage of participants
Haplo Bone Marrow HSCTPercentage of Participants With Cytomegalovirus (CMV), Epstein Barr Virus (EBV) or Post-Transplant Lymphoproliferative Disease (PTLD)Cumulative Percentage of Participants with CMV22.6 percentage of participants
Haplo Bone Marrow HSCTPercentage of Participants With Cytomegalovirus (CMV), Epstein Barr Virus (EBV) or Post-Transplant Lymphoproliferative Disease (PTLD)Cumulative Percentage of Participants with PTLD6.5 percentage of participants
Secondary

Percentage of Participants With Graft-Failure-Free Survival

Events for Graft-Failure-Free Survival (GFFS) including death, primary graft failure, secondary graft failure. The time to this event is the time from transplant to death from any cause, or graft failure, or last follow-up, or 1 year from transplant, whichever occurs first. For patients experiencing primary graft failure, Day 0.1 was used for primary graft failure event date to count the event in. The one-year GFFS probability and its 95% confidence interval were estimated using the Kaplan-Meier estimator and Greenwood's formula.

Time frame: 1 year

Population: Analysis Population includes transplanted participants.

ArmMeasureValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Graft-Failure-Free Survival77.4 percentage of participants
Secondary

Percentage of Participants With Neutrophil Recovery

Neutrophil recovery is achieving an absolute neutrophil count (ANC) \> 0.5 x10\^9/L for three consecutive measurements on different days, with the first of the three days being defined as the day of neutrophil engraftment. The cumulative percentage of neutrophil engraftment was estimated with a 95% confidence interval using the Aalen-Johansen estimator with death prior to neutrophil engraftment treated as a competing risk.

Time frame: Day 28 and 56

Population: Analysis Population includes transplanted participants.

ArmMeasureGroupValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Neutrophil RecoveryDay 2893.5 percentage of participants
Haplo Bone Marrow HSCTPercentage of Participants With Neutrophil RecoveryDay 5693.5 percentage of participants
Secondary

Percentage of Participants With Platelet Recovery

Platelet recovery is defined by achieving a platelet count \> 20 x 10\^9/L with no platelet transfusions in the preceding seven days. The first day of the sustained platelet count will be defined as the day of platelet engraftment. The cumulative percentage of platelet engraftment was estimated with a 95% confidence interval using the Aalen-Johansen estimator with death prior to platelet engraftment treated as a competing risk.

Time frame: Day 100

Population: Analysis Population includes transplanted participants.

ArmMeasureValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Platelet Recovery77.4 percentage of participants
Secondary

Percentage of Participants With Primary Graft Failure

Primary graft failure is defined by the lack of neutrophil engraftment by Day 56 post-HSCT or failure to achieve at least 5% donor chimerism (whole blood or marrow) on any measurements up to and including Day +56. For this protocol, lineage-specific, myeloid, and T cell chimerisms are required. Myeloid engraftment might not proceed at the same rate as T cell engraftment. If myeloid has greater than or equal to 5% donor, even if T cell compartment does not, this is not considered primary graft failure. Secondary graft failure is defined by initial neutrophil engraftment (ANC greater than or equal to 0.5 x 10\^8/L measured for 3 consecutive measurements on different days) followed by sustained subsequent decline in ANC to less than 0.5 x 10\^9/L for three consecutive measurements on different days or initial whole blood or marrow donor chimerism greater than or equal to 5%, but then declining to less than 5% on subsequent measurements or second infusion/transplant given for graft failure.

Time frame: Day 56

Population: Analysis Population includes transplanted participants.

ArmMeasureValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Primary Graft Failure12.9 percentage of participants
Secondary

Percentage of Participants With Secondary Graft Failure

Secondary graft failure is defined as any one of the following: 1. Initial neutrophil engraftment (ANC greater than or equal to 0.5 x10\^9/L measured for three consecutive measurements on different days) followed by sustained subsequent decline in ANC to less than 0.5 x 10\^9/L for three consecutive measurements on different days; 2. Initial whole blood or marrow donor chimerism greater than or equal to 5%, but then declining to less than 5% on subsequent measurements; 3. Second infusion/transplant given after Day 56 for graft failure.

Time frame: 1 year

Population: Analysis Population includes transplanted participants.

ArmMeasureValue (NUMBER)
Haplo Bone Marrow HSCTPercentage of Participants With Secondary Graft Failure3.2 percentage of participants

Source: ClinicalTrials.gov · Data processed: Apr 1, 2026