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Fludarabine Phosphate, Cyclophosphamide, Total-Body Irradiation, and Donor Bone Marrow Transplant Followed by Donor Natural Killer Cell Therapy, Mycophenolate Mofetil, and Tacrolimus in Treating Patients With Hematologic Cancer

A Phase I/II Study Evaluating the Safety and Efficacy of Adding a Single Prophylactic Donor Lymphocyte Infusion (DLI) of Natural Killer Cells Early After Nonmyeloablative, HLA-Haploidentical Hematopoietic Cell Transplantation - A Multi Center Trial

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00789776
Enrollment
41
Registered
2008-11-13
Start date
2008-10-13
Completion date
2017-05-31
Last updated
2020-01-31

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

Conditions

Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, Aggressive Non-Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma, Previously Treated Myelodysplastic Syndrome, Recurrent Chronic Lymphocytic Leukemia, Recurrent Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Recurrent Indolent Adult Non-Hodgkin Lymphoma, Recurrent Mantle Cell Lymphoma, Recurrent Plasma Cell Myeloma, Recurrent Small Lymphocytic Lymphoma, Refractory Chronic Lymphocytic Leukemia, Refractory Hodgkin Lymphoma, Refractory Plasma Cell Myeloma, Refractory Small Lymphocytic Lymphoma, Waldenstrom Macroglobulinemia

Brief summary

This phase I/II trial studies the side effects and best dose of donor natural killer (NK) cell therapy and to see how well it works when given together with fludarabine phosphate, cyclophosphamide, total-body irradiation, donor bone marrow transplant, mycophenolate mofetil, and tacrolimus in treating patients with hematologic cancer. Giving chemotherapy, such as fludarabine phosphate and cyclophosphamide, and total-body irradiation before a donor bone marrow transplant helps stop the growth of cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Giving an infusion of the donor's T cells (donor lymphocyte infusion) may help the patient's immune system see any remaining cancer cells as not belonging in the patient's body and destroy them (called graft-versus-tumor effect). Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving mycophenolate mofetil and tacrolimus after the transplant may stop this from happening.

Detailed description

PRIMARY OBJECTIVES: I. Identification of the maximal feasible dose of NK cells that can be infused one week after nonmyeloablative, human leukocyte antigen (HLA)-haploidentical hematopoietic cell transplant (HCT). (Phase I) SECONDARY OBJECTIVES: Once the maximal feasible dose has been identified, accrual will be limited to the cohort containing this cell dose to determine: I. Incidence of relapse. (Phase II) II. Incidence of grades III-IV acute graft-versus-host disease (GVHD). (Phase II) III. Incidence of non-relapse mortality. (Phase II) OUTLINE: This is a phase I, dose-escalation study of donor NK cell therapy followed by a phase II study. CONDITIONING: Patients receive fludarabine intravenously (IV) over 30 minutes on days -6 to -2 and cyclophosphamide IV over 1 hour on days -6 and -5. Patients undergo total-body irradiation on day -1. DONOR BONE MARROW TRANSPLANTATION: Patients undergo donor bone marrow transplantation on day 0. POST-TRANSPLANTATION IMMUNOSUPPRESSION: Patients receive cyclophosphamide IV over 1 hour on day 3 and mycophenolate mofetil orally (PO) thrice daily (TID) on days 4 to 40, followed by a taper until day 84 in the absence of GVHD. Patients also receive tacrolimus IV continuously or IV once daily (QD) over 1-2 hours or PO twice daily (BID) on days 4 to 84, followed by a taper until day 180 in the absence of GVHD. DONOR NK CELL INFUSION: Patients undergo donor lymphocyte infusion of NK cells on day 7. After completion of study treatment, patients are followed up at 6 months, 1 year, 1.5 years, and then every year thereafter.

Interventions

PROCEDUREAllogeneic Bone Marrow Transplantation

Undergo donor bone marrow transplantation

DRUGCyclophosphamide

Given IV

DRUGFludarabine Phosphate

Given IV

OTHERLaboratory Biomarker Analysis

Correlative studies

DRUGMycophenolate Mofetil

Given PO

Given IV

DRUGTacrolimus

Given IV or PO

RADIATIONTotal-Body Irradiation

Undergo total-body irradiation

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
The Wayne D. Kuni and Joan E. Kuni Foundation
CollaboratorOTHER
Fred Hutchinson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Patients with the following hematologic malignancies will be permitted although other diagnoses can be considered if approved by Patient Care Conference (PCC) and the principal investigators: * Aggressive non-Hodgkin lymphomas (NHL) and other histologies such as diffuse large B cell (DLBC) NHL - a) not eligible for autologous HCT, b) not eligible for high-dose HCT, c) after failed autologous HCT, or d) be part of a tandem auto-allo approach for high risk patients * Mantle cell NHL must be beyond first complete response (CR) * Low-grade NHL with \< 6 month duration of CR between courses of conventional therapy * Chronic lymphocytic leukemia (CLL) must have either * 1\) Failed to meet National Cancer Institute (NCI) Working Group criteria for complete or partial response after therapy with a regimen containing FLU (fludarabine phosphate) (or another nucleoside analog, e.g. 2-chlorodeoxyadenosine \[2-CDA\], pentostatin) or experience disease relapse within 12 months after completing therapy with a regimen containing FLU (or another nucleoside analog) * 2\) Failed FLU- CY (cyclophosphamide)-rituximab (FCR) combination chemotherapy at any time point; or * 3\) Have 17p deletion cytogenetic abnormality and relapsed at any time point after any initial chemotherapy * Hodgkin lymphoma - must have received and a) failed frontline therapy, b) not be eligible for autologous HCT, or c) or be part of a tandem auto-allo approach for high risk patients * Multiple myeloma or plasma cell leukemia must have received more than one line of prior chemotherapy; consolidation of chemotherapy by autografting prior to nonmyeloablative HCT is permitted * Acute myeloid leukemia (AML) must have \< 5% marrow blasts at the time of HCT * Acute lymphocytic leukemia (ALL) must have \< 5% marrow blasts at the time of HCT * Chronic myeloid leukemia (CML) accepted if they are beyond chronic phase (CP)1 and if they have received previous myelosuppressive chemotherapy or HCT and have \< 5% marrow blasts at time of transplant * Myelodysplasia (MDS)/myeloproliferative syndrome (MPS) - (\> intermediate 1 \[int-1\] per International Prognostic Scoring System \[IPSS\]) after \> or = 1 prior cycle of induction chemotherapy; must have \< 5% marrow blasts at time of transplant * Waldenstrom's macroglobulinemia must have failed 2 courses of therapy * Patients must be expected to have disease controlled for at least 60 days after HCT * Patients for whom HLA-matched unrelated donor search could not be initiated or completed due to insurance reasons, concerns of rapidly progressive disease, and/or discretion of attending physician are eligible for this protocol * DONOR: Related, HLA-haploidentical donors who are identical for one HLA haplotype and mismatched for any number of HLA-A, -B, -C, DRB1 or DQB1 loci of the unshared haplotype * DONOR: Marrow will be the only allowed hematopoietic stem cell source * DONOR: Haploidentical donor selection will be based on standard institutional criteria, otherwise no specific prioritization will be made amongst the suitable available donors; donors will not be selected based on killer cell immunoglobulin-like receptor (KIR) status

Exclusion criteria

* Patients with available HLA-matched related donors * Patients eligible for a curative autologous HCT * Significant organ dysfunction that would prevent compliance with conditioning, GVHD prophylaxis, or would severely limit the probability of survival: * 1\) Symptomatic coronary artery disease or ejection fraction \< 35% or other cardiac failure requiring therapy (or, if unable to obtain ejection fraction, shortening fraction of \< 26%); if shortening fraction is \< 26% a cardiology consult is required with the principal investigator (PI) having final approval of eligibility * 2\) Diffusion capacity of the lung for carbon monoxide (DLCO) \< 40% total lung capacity (TLC) \< 40%, forced expiratory volume in one second (FEV1) \< 40% and/or receiving supplementary continuous oxygen; the Fred Hutchinson Cancer Research Center (FHCRC) study PI must approve enrollment of all patients with pulmonary nodules * 3\) Liver function abnormalities: patient with clinical or laboratory evidence of liver disease will be evaluated for the cause of liver disease, its clinical severity in terms of liver function, bridging fibrosis, and the degree of portal hypertension; the patient will be excluded if he/she is found to have fulminant liver failure, cirrhosis of the liver with evidence of portal hypertension, alcoholic hepatitis, esophageal varices, a history of bleeding esophageal varices, hepatic encephalopathy, uncorrectable hepatic synthetic dysfunction evinced by prolongation of the prothrombin time, ascites related to portal hypertension, bacterial or fungal liver abscess, biliary obstruction, chronic viral hepatitis with total serum bilirubin \> 3 mg/dL, or symptomatic biliary disease * Human immunodeficiency virus (HIV) seropositive patients * Patients with poorly controlled hypertension despite multiple antihypertensive medications * Fertile females who are unwilling to use contraceptive techniques during and for the twelve months following treatment, as well as females who are pregnant or actively breast feeding * Fertile males who are unwilling to use contraceptive techniques during and for the twelve months following treatment * Patients with active non-hematologic malignancies (except non-melanoma skin cancers) or those with non-hematologic malignancies (except non-melanoma skin cancers) who have been rendered with no evidence of disease, but have a greater than 20% chance of having disease recurrence within five years; this exclusion does not apply to patients with non-hematologic malignancies that do not require therapy * Active infectious disease concerns * Karnofsky performance score \< 60 Lansky performance score \< 60 * Life expectancy severely limited by diseases other than malignancy * Patients with a diagnosis of chronic myelomonocytic leukemia (CMML) * Central nervous system (CNS) involvement with disease refractory to intrathecal chemotherapy * Patients with AML, MDS, ALL, or CML must not have presence of circulating leukemic blasts detected by standard pathology * Patients with aggressive lymphomas (such as DLBC) must not have bulky, rapidly progressive disease immediately prior to HCT * Patients who have received a prior allogeneic HCT must have no active GVHD requiring immunosuppressive therapy for at least 21 days prior to start of conditioning * DONOR: Children less than 12 years of age. * DONOR: Children greater than or equal to 12 years of age who have not provided informed assent in the presence of a parent and an attending physician who is not a member of the recipient's care team * DONOR: Children greater than or equal to 12 years of age who have inadequate peripheral vein access to safely undergo apheresis * DONOR: Donors unable or unwilling to undergo marrow harvest for the initial HCT, storage of autologous blood prior to marrow harvest or apheresis one week after marrow harvest * DONOR: Donors who are not expected to meet the minimum target dose of marrow cells (1 x 10\^8 nucleated cells/kg recipient ideal body weight \[IBW\]) for the initial HCT; the average nucleated cell content of harvested marrow is 22 x 10\^6 nucleated cells/mL or 220 x 10\^8 nucleated cells/Liter * DONOR: HIV-positive donors * DONOR: Donors who are cross-match positive with recipient

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Relapsed DiseaseAt 1 yearCML New cytogenetic abnormality and/or development of accelerated phase or blast crisis. The criteria for accelerated phase will be defined as unexplained fever greater than 38.3°C, new clonal cytogenetic abnormalities in addition to a single Ph-positive chromosome, marrow blasts and promyelocytes \>20%. AML, ALL \>5% marrow blasts by morphologic or flow cytometric, or appearance of extramedullary disease. CLL ≥1 of: Physical exam/Imaging studies (nodes, liver, and/or spleen) ≥50% increase or new, circulating lymphocytes by morphology and/or flow cytometry ≥50% increase, and lymph node biopsy w/ Richter's transformation. NHL \>25% increase in the sum of the products of the perpendicular diameters of marker lesions, or the appearance of new lesions. MM ≥100% increase of the serum myeloma protein from its lowest level, or reappearance of myeloma peaks that had disappeared w/ treatment; or definite increase in the size or number of plasmacytomas or lytic bone lesions.
Number of Non-relapse Participant MortalitiesDay 200Defined as death in any patient for whom there has not been a diagnosis of relapse or disease progression.
Number of Participants Who Experienced Graft FailureDay 100Graft failure is defined as grade IV thrombocytopenia and neutropenia after Day +21 that lasts \>2 weeks and is refractory to growth factor support.
Number of Participants With Dose Limiting ToxicitiesDay 35 (28 days after NK cell infusion)Defined as having at least one of the following adverse events, independent of the attribution to the Natural Killer cell infusion: grade IV infusional toxicity (based on the Adapted Common Toxicity Criteria); grade IV regimen-related toxicity (based on Adapted Common Toxicity Criteria); grade IV acute Graft-Versus-Host Disease; non-relapse mortality.
Number of Participants With Grades III-IV Acute GVHDDay 100Number of patients who developed acute GVHD post-transplant. aGVHD Stages Skin: a maculopapular eruption involving \< 25% BSA a maculopapular eruption involving 25 - 50% BSA generalized erythroderma generalized erythroderma with bullous formation and often with desquamation Liver: bilirubin 2.0 - 3.0 mg/100 mL bilirubin 3 - 5.9 mg/100 mL bilirubin 6 - 14.9 mg/100 mL bilirubin \> 15 mg/100 mL Gut: Diarrhea is graded 1 - 4 in severity. Nausea and vomiting and/or anorexia caused by GVHD is assigned as 1 in severity. The severity of gut involvement is assigned to the most severe involvement noted. Patients with visible bloody diarrhea are at least stage 2 gut and grade 3 overall. aGVHD Grades Grade III: Stage 2 - 4 gut involvement and/or stage 2 - 4 liver involvement Grade IV: Pattern and severity of GVHD similar to grade 3 with extreme constitutional symptoms or death

Secondary

MeasureTime frameDescription
Number of Participants Who Experienced Chronic Extensive GVHDUp to 1 yearNumber of patients who developed chronic extensive GVHD post-transplant. The diagnosis of chronic GVHD requires at least one manifestation that is distinctive for chronic GVHD as opposed to acute GVHD. In all cases, infection and others causes must be ruled out in the differential diagnosis of chronic GVHD.
Number of Subjects Surviving Post-transplant.Up to 1 yearNumber of subjects surviving post-transplant.

Countries

United States

Participant flow

Participants by arm

ArmCount
Dose 1 (2.5 x 10^6/kg NK Cells)
CONDITIONING: Patients receive fludarabine IV over 30 minutes on days -6 to -2 and cyclophosphamide IV over 1 hour on days -6 and -5. Patients undergo total-body irradiation on day -1. DONOR BONE MARROW TRANSPLANTATION: Patients undergo donor bone marrow transplantation on day 0. POST-TRANSPLANTATION IMMUNOSUPPRESSION: Patients receive cyclophosphamide IV over 1 hour on day 3 and mycophenolate mofetil PO TID on days 4 - 40, followed by a taper until day 84 in the absence of GVHD. Patients also receive tacrolimus IV continuously or IV QD over 1-2 hours or PO BID on days 4 - 84, followed by a taper until day 180 in the absence of GVHD. NK CELL INFUSION: Patients undergo donor lymphocyte infusion of 2.5 x 10\^6/kg NK cells on day 7. Allogeneic Bone Marrow Transplantation: Undergo donor bone marrow transplantation Laboratory Biomarker Analysis: Correlative studies
5
Dose 2 (5.0 x 10^6/kg NK Cells)
CONDITIONING: Patients receive fludarabine IV over 30 minutes on days -6 to -2 and cyclophosphamide IV over 1 hour on days -6 and -5. Patients undergo total-body irradiation on day -1. DONOR BONE MARROW TRANSPLANTATION: Patients undergo donor bone marrow transplantation on day 0. POST-TRANSPLANTATION IMMUNOSUPPRESSION: Patients receive cyclophosphamide IV over 1 hour on day 3 and mycophenolate mofetil PO TID on days 4 - 40, followed by a taper until day 84 in the absence of GVHD. Patients also receive tacrolimus IV continuously or IV QD over 1-2 hours or PO BID on days 4 - 84, followed by a taper until day 180 in the absence of GVHD. NK CELL INFUSION: Patients undergo donor lymphocyte infusion of 5.0 x 10\^6/kg NK cells on day 7. Allogeneic Bone Marrow Transplantation: Undergo donor bone marrow transplantation Laboratory Biomarker Analysis: Correlative studies
36
Total41

Baseline characteristics

CharacteristicDose 1 (2.5 x 10^6/kg NK Cells)Dose 2 (5.0 x 10^6/kg NK Cells)Total
Age, Categorical
<=18 years
1 Participants10 Participants11 Participants
Age, Categorical
>=65 years
0 Participants3 Participants3 Participants
Age, Categorical
Between 18 and 65 years
4 Participants23 Participants27 Participants
Age, Continuous22.2 years55.65 years47.6 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants5 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants31 Participants35 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants2 Participants
Race (NIH/OMB)
Black or African American
0 Participants6 Participants6 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants28 Participants32 Participants
Region of Enrollment
United States
5 Participants36 Participants41 Participants
Sex: Female, Male
Female
2 Participants11 Participants13 Participants
Sex: Female, Male
Male
3 Participants25 Participants28 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 510 / 35
other
Total, other adverse events
4 / 519 / 35
serious
Total, serious adverse events
1 / 50 / 35

Outcome results

Primary

Number of Non-relapse Participant Mortalities

Defined as death in any patient for whom there has not been a diagnosis of relapse or disease progression.

Time frame: Day 200

Population: One subject aborted transplant after conditioning due to donor ineligibility. This subject was counted towards accrual but not evaluated with respect to outcome measures.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1 (2.5 x 10^6/kg NK Cells)Number of Non-relapse Participant Mortalities0 Participants
Dose 2 (5.0 x 10^6/kg NK Cells)Number of Non-relapse Participant Mortalities0 Participants
Primary

Number of Participants Who Experienced Graft Failure

Graft failure is defined as grade IV thrombocytopenia and neutropenia after Day +21 that lasts \>2 weeks and is refractory to growth factor support.

Time frame: Day 100

Population: One subject aborted transplant after conditioning due to donor ineligibility. This subject was counted towards accrual but not evaluated with respect to outcome measures.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1 (2.5 x 10^6/kg NK Cells)Number of Participants Who Experienced Graft Failure0 Participants
Dose 2 (5.0 x 10^6/kg NK Cells)Number of Participants Who Experienced Graft Failure4 Participants
Primary

Number of Participants With Dose Limiting Toxicities

Defined as having at least one of the following adverse events, independent of the attribution to the Natural Killer cell infusion: grade IV infusional toxicity (based on the Adapted Common Toxicity Criteria); grade IV regimen-related toxicity (based on Adapted Common Toxicity Criteria); grade IV acute Graft-Versus-Host Disease; non-relapse mortality.

Time frame: Day 35 (28 days after NK cell infusion)

Population: One subject aborted transplant after conditioning due to donor ineligibility. This subject was counted towards accrual but not evaluated with respect to outcome measures.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1 (2.5 x 10^6/kg NK Cells)Number of Participants With Dose Limiting Toxicities0 Participants
Dose 2 (5.0 x 10^6/kg NK Cells)Number of Participants With Dose Limiting Toxicities0 Participants
Primary

Number of Participants With Grades III-IV Acute GVHD

Number of patients who developed acute GVHD post-transplant. aGVHD Stages Skin: a maculopapular eruption involving \< 25% BSA a maculopapular eruption involving 25 - 50% BSA generalized erythroderma generalized erythroderma with bullous formation and often with desquamation Liver: bilirubin 2.0 - 3.0 mg/100 mL bilirubin 3 - 5.9 mg/100 mL bilirubin 6 - 14.9 mg/100 mL bilirubin \> 15 mg/100 mL Gut: Diarrhea is graded 1 - 4 in severity. Nausea and vomiting and/or anorexia caused by GVHD is assigned as 1 in severity. The severity of gut involvement is assigned to the most severe involvement noted. Patients with visible bloody diarrhea are at least stage 2 gut and grade 3 overall. aGVHD Grades Grade III: Stage 2 - 4 gut involvement and/or stage 2 - 4 liver involvement Grade IV: Pattern and severity of GVHD similar to grade 3 with extreme constitutional symptoms or death

Time frame: Day 100

Population: One subject aborted transplant after conditioning due to donor ineligibility. This subject was counted towards accrual but not evaluated with respect to outcome measures.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1 (2.5 x 10^6/kg NK Cells)Number of Participants With Grades III-IV Acute GVHD1 Participants
Dose 2 (5.0 x 10^6/kg NK Cells)Number of Participants With Grades III-IV Acute GVHD0 Participants
Primary

Number of Participants With Relapsed Disease

CML New cytogenetic abnormality and/or development of accelerated phase or blast crisis. The criteria for accelerated phase will be defined as unexplained fever greater than 38.3°C, new clonal cytogenetic abnormalities in addition to a single Ph-positive chromosome, marrow blasts and promyelocytes \>20%. AML, ALL \>5% marrow blasts by morphologic or flow cytometric, or appearance of extramedullary disease. CLL ≥1 of: Physical exam/Imaging studies (nodes, liver, and/or spleen) ≥50% increase or new, circulating lymphocytes by morphology and/or flow cytometry ≥50% increase, and lymph node biopsy w/ Richter's transformation. NHL \>25% increase in the sum of the products of the perpendicular diameters of marker lesions, or the appearance of new lesions. MM ≥100% increase of the serum myeloma protein from its lowest level, or reappearance of myeloma peaks that had disappeared w/ treatment; or definite increase in the size or number of plasmacytomas or lytic bone lesions.

Time frame: At 1 year

Population: One subject aborted transplant after conditioning due to donor ineligibility. This subject was counted towards accrual but not evaluated with respect to outcome measures.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1 (2.5 x 10^6/kg NK Cells)Number of Participants With Relapsed Disease1 Participants
Dose 2 (5.0 x 10^6/kg NK Cells)Number of Participants With Relapsed Disease10 Participants
Secondary

Number of Participants Who Experienced Chronic Extensive GVHD

Number of patients who developed chronic extensive GVHD post-transplant. The diagnosis of chronic GVHD requires at least one manifestation that is distinctive for chronic GVHD as opposed to acute GVHD. In all cases, infection and others causes must be ruled out in the differential diagnosis of chronic GVHD.

Time frame: Up to 1 year

Population: One subject aborted transplant after conditioning due to donor ineligibility. This subject was counted towards accrual but not evaluated with respect to outcome measures.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1 (2.5 x 10^6/kg NK Cells)Number of Participants Who Experienced Chronic Extensive GVHD2 Participants
Dose 2 (5.0 x 10^6/kg NK Cells)Number of Participants Who Experienced Chronic Extensive GVHD3 Participants
Secondary

Number of Subjects Surviving Post-transplant.

Number of subjects surviving post-transplant.

Time frame: Up to 1 year

Population: One subject aborted transplant after conditioning due to donor ineligibility. This subject was counted towards accrual but not evaluated with respect to outcome measures.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose 1 (2.5 x 10^6/kg NK Cells)Number of Subjects Surviving Post-transplant.5 Participants
Dose 2 (5.0 x 10^6/kg NK Cells)Number of Subjects Surviving Post-transplant.25 Participants

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