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Safety Study of Bone Marrow Transplant Using Mismatched Tissue Followed by Chemotherapy

A Phase II Trial of Myeloablative Conditioning and Transplantation of Partially HLA-mismatched Bone Marrow for Patients With Hematologic Malignancies

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00796562
Enrollment
107
Registered
2008-11-24
Start date
2008-12-31
Completion date
2016-11-30
Last updated
2019-03-14

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

Conditions

Leukemias, Lymphomas, MDS

Keywords

Leukemia, Lymphoma, Hematologic malignancies, ALL, AML, MDS, Transplantation, Mismatched, Haploidentical, Busulfan, Cyclophosphamide, Cellcept, Tacrolimus, TBI, CMMOL, CML, JMML

Brief summary

The purpose of this study is to see if giving high dose chemotherapy and total body irradiation before and repeating high dose chemotherapy after a bone marrow transplant could reduce the incidence of graft rejection and disease for patients with blood cancers

Detailed description

Allogeneic blood or marrow transplantation (alloBMT), following either marrow-ablative or nonmyeloablative conditioning, is a potentially curative treatment for a variety of hematologic malignancies and non-malignant hematologic disorders. Of all the potential sources of allografts, transplantation of stem cells from a human leukocyte antigen (HLA)-matched sibling has generally produced the best overall outcomes, i.e. overall and progression-free survival. Unfortunately, only about a third of candidates for alloBMT have HLA-matched siblings. For patients who lack HLA-matched siblings, there are three alternative sources of stem cells for alloBMT: 1) volunteer unrelated donors; 2) umbilical cord blood; and 3) partially HLA-mismatched, or haploidentical, related donors. Since any patient shares exactly one HLA haplotype with each biological parent or child and half of siblings, an eligible haploidentical donor can be identified rapidly in nearly all cases. However, haploidentical BMT has been associated with significant risks of graft rejection and severe GVHD, which are manifestations of excessive alloreactivity by host and donor T cells, respectively. The risk of severe GVHD may be reduced in intensively conditioned recipients of grafts that have been rigorously depleted of mature T cells or selectively depleted of alloreactive T cells, but the risks of serious infection and death from prolonged immune compromise in these patients remains high. Cyclophosphamide(Cy) is a highly immunosuppressive antineoplastic agent that has an established role in conditioning for alloBMT. Typically, the drug is administered prior to transplantation to prevent graft rejection by suppressing the host immune system. However, pre-transplantation conditioning with Cy increases the risk of GVHD following allogeneic T cell infusion in mouse models. In contrast, administration of a properly timed, high dose of Cy after BMT inhibits both graft rejection and GVHD.

Interventions

DRUGBusulfan

Participant will receive Busulfan injections, 4 times a day for 4 days with dilantin prophylaxis (in patients 10 years of age or older). Busulfan levels in the blood will be measured and dose adjusted, if needed.

DRUGCyclophosphamide

Patient will receive Cy by IV once a day for 2 days.

RADIATIONTotal body irradiation

Patients will receive TBI once a day for 4 days.

Sponsors

Otsuka Pharmaceutical Co., Ltd.
CollaboratorINDUSTRY
National Center for Research Resources (NCRR)
CollaboratorNIH
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Months to 65 Years
Healthy volunteers
No

Inclusion criteria

* Acute lymphocytic leukemia in high risk CR1 * Acute myeloid leukemia in CR1 * Therapy-related AML * RAEB with \>5% and \<20% bone marrow blasts * Chronic myelogenous leukemia beyond 1st chronic phase; Patients cannot be in blast crisis * CMMoL * JMML * Chemotherapy-resistant Hodgkins Lymphoma or intermediate or high grade Non-Hodgkins lymphoma (Less than a PR after standard or salvage chemotherapy) * Mantle cell lymphoma: chemotherapy refractory (Less than a PR after standard or salvage chemotherapy) or patients beyond CR1 with chemosensitive disease * Follicular Lymphoma, Grade 3 * Transformed indolent lymphomas

Exclusion criteria

* Poor cardiac function: left ventricular ejection fraction \<45% as determined by MUGA or ECHO. For pediatric patients LVEF \<45% or a shortening fraction below normal limits for age. * Poor pulmonary function: FEV1 and FVC \<50% predicted for patients who have not received thoracic or mantle irradiation. For patients who have received thoracic or mantle irradiation, FEV1 and FVC \<70% predicted or DLCO \< 50 of predicted. For children unable to perform PFTs because of developmental stage pulse oximetry \< 85% on RA * 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 * HIV-positive * Positive leukocytotoxic crossmatch * Women of childbearing potential who currently are pregnant or who are not practicing adequate contraception * Uncontrolled viral, bacterial, or fungal infections Patients with symptoms consistent with RSV, influenza A, B, or parainfluenza at the time of enrollment will be assayed for the above viruses and if positive are not eligible for the trial until they are no longer symptomatic (patients may have continued assay positivity for a period of time post resolution of symptoms secondary to the nature of the assay. * Indolent lymphomas (Follicular Grade 1 and 2, marginal zone, chronic lymphocytic leukemia, small lymphocytic lymphoma, MALT)

Design outcomes

Primary

MeasureTime frameDescription
Engraftment as Measured by Donor ChimerismDay 60Percentage of participants who achieved donor chimerism \>=95%.

Secondary

MeasureTime frameDescription
Non-relapse MortalityDay 100, 1 yearNumber of participants deceased for reasons other than disease relapse or progression.
Acute GVHDDay 100Percentage of participants who experience grade II-IV or III-IV acute graft-versus-host-disease (GVHD) by Przepiorka criteria. The stages are defined as follows: * Stage II: Rash on \>50% of skin, bilirubin 2-3 mg/dL, or diarrhea 500-1000 mL/day * Stage III: Bilirubin 3-15 mg/dL or diarrhea \>1000 mL/day * Stage IV: Generalized erythroderma with bullae or bilirubin \>15 mg/dL This outcome was estimated using proportional subdistribution hazard regression model for competing risks (Fine and Gray 1999)
Chronic GVHD6 months, 12 monthsPercentage of participants who experience chronic GVHD. Chronic GVHD is graded using NIH consensus criteria and Seattle criteria. This outcome was estimated using proportional subdistribution hazard regression model for competing risks (Fine and Gray 1999)
Survival1 year, 2 years, 3 yearsPercentage of participants alive (overall survival) and alive without disease relapse, progression, or diagnosis of myeloid malignancy (event-free survival). Estimated using Kaplan-Meier method.
Relapse1 year, 3 yearsPercentage of participants who experienced disease progression or relapse. This outcome was estimated using proportional subdistribution hazard regression model for competing risks (Fine and Gray 1999)

Countries

United States

Participant flow

Pre-assignment details

11 participants were screen failures.

Participants by arm

ArmCount
Myeloablative Haploidentical BMT
* All participants except those with acute lymphoblastic leukemia and lymphoblastic lymphoma: Busulfan will be administered 1 mg/kg oral (or 0.8 mg/kg IV) four times per day for four days, followed by cyclophosphamide 50 mg/kg once per day for two days. * Participants with acute lymphocytic leukemia or lymphoblastic lymphoma: Cyclophosphamide will be administered 50 mg/kg once per day for two days, followed by total body irradiation at 300 cGy per day for four days.
96
Total96

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath49

Baseline characteristics

CharacteristicMyeloablative Haploidentical BMT
Age, Categorical
<=18 years
15 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
80 Participants
Age, Continuous42 years
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
96 Participants
Sex: Female, Male
Female
40 Participants
Sex: Female, Male
Male
56 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
49 / 96
other
Total, other adverse events
37 / 96
serious
Total, serious adverse events
22 / 96

Outcome results

Primary

Engraftment as Measured by Donor Chimerism

Percentage of participants who achieved donor chimerism \>=95%.

Time frame: Day 60

Population: 8 participants were not evaluable for this outcome because they died prior to Day 60.

ArmMeasureValue (NUMBER)
Myeloablative Haploidentical BMTEngraftment as Measured by Donor Chimerism91 percentage of participants
Secondary

Acute GVHD

Percentage of participants who experience grade II-IV or III-IV acute graft-versus-host-disease (GVHD) by Przepiorka criteria. The stages are defined as follows: * Stage II: Rash on \>50% of skin, bilirubin 2-3 mg/dL, or diarrhea 500-1000 mL/day * Stage III: Bilirubin 3-15 mg/dL or diarrhea \>1000 mL/day * Stage IV: Generalized erythroderma with bullae or bilirubin \>15 mg/dL This outcome was estimated using proportional subdistribution hazard regression model for competing risks (Fine and Gray 1999)

Time frame: Day 100

ArmMeasureGroupValue (NUMBER)
Myeloablative Haploidentical BMTAcute GVHDGrade II-IV11 percentage of participants
Myeloablative Haploidentical BMTAcute GVHDGrade III-IV4 percentage of participants
Secondary

Chronic GVHD

Percentage of participants who experience chronic GVHD. Chronic GVHD is graded using NIH consensus criteria and Seattle criteria. This outcome was estimated using proportional subdistribution hazard regression model for competing risks (Fine and Gray 1999)

Time frame: 6 months, 12 months

ArmMeasureGroupValue (NUMBER)
Myeloablative Haploidentical BMTChronic GVHD6 months4 percentage of participants
Myeloablative Haploidentical BMTChronic GVHD12 months15 percentage of participants
Secondary

Non-relapse Mortality

Number of participants deceased for reasons other than disease relapse or progression.

Time frame: Day 100, 1 year

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Myeloablative Haploidentical BMTNon-relapse Mortality100 days10 Participants
Myeloablative Haploidentical BMTNon-relapse Mortality1 year10 Participants
Secondary

Relapse

Percentage of participants who experienced disease progression or relapse. This outcome was estimated using proportional subdistribution hazard regression model for competing risks (Fine and Gray 1999)

Time frame: 1 year, 3 years

Population: The entire set of participants was analyzed as one group, and the analysis was planned this way from the beginning of the study.

ArmMeasureGroupValue (NUMBER)
Myeloablative Haploidentical BMTRelapse1 year35 percentage of participants
Myeloablative Haploidentical BMTRelapse3 years43 percentage of participants
Secondary

Survival

Percentage of participants alive (overall survival) and alive without disease relapse, progression, or diagnosis of myeloid malignancy (event-free survival). Estimated using Kaplan-Meier method.

Time frame: 1 year, 2 years, 3 years

ArmMeasureGroupValue (NUMBER)
Myeloablative Haploidentical BMTSurvivalOverall survival, 1 year73 percentage of participants
Myeloablative Haploidentical BMTSurvivalOverall survival, 2 years57 percentage of participants
Myeloablative Haploidentical BMTSurvivalOverall survival, 3 years54 percentage of participants
Myeloablative Haploidentical BMTSurvivalEvent-free survival, 1 year58 percentage of participants
Myeloablative Haploidentical BMTSurvivalEvent-free survival, 2 years52 percentage of participants
Myeloablative Haploidentical BMTSurvivalEvent-free survival, 3 years50 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026