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Reduced Intensity Double Umbilical Cord Blood Transplantation

A Phase II Study of Reduced Intensity Double Umbilical Cord Blood Transplantation Using Fludarabine, Melphalan, and Low Dose Total Body Radiation

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01408563
Enrollment
33
Registered
2011-08-03
Start date
2011-12-31
Completion date
2017-06-30
Last updated
2019-01-23

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

Conditions

Non-Hodgkin's Lymphoma, Hodgkin's Lymphoma, Multiple Myeloma, Chronic Lymphocytic Leukemia, Acute Myelogenous Leukemia

Keywords

NHL, lymphoma, leukemia, myelodysplastic disorder, aplastic anemia

Brief summary

This trial will use two cord blood units for transplantation using a reduced intensity regimen rather than using intense doses of chemotherapy and radiation therapy. Two cord blood units (double cord blood) are being used, as the numbers of blood cells in one unit are too few to allow successful growth of these cells. Because the risk of infection, particularly virus infection, is high after double cord blood transplant, this study seeks to reduce the rise of virus infection by using a reduced intensity regimen without a medicine called antithymocyte globulin (ATG), as used in prior cord blood transplants. Subjects will receive two chemotherapy drugs, melphalan and fludarabine, and low dose of total body radiation (one treatment) instead of the ATG. The number of patients with virus infections in this study will be compared to our prior experience using the ATG.

Detailed description

Subjects will receive their transplants as in-patients. * IV-Catheter * one or two IV catheters will be placed on the day of hospital admission * Conditioning * Fludarabine IV six days before transplant (days -7, -6, -5. -4, -3, -2) * Melphalan IV (day -1) * Total body radiation on day 0 (same day as transplant) * Immunosuppressive Therapy * Tacrolimus and sirolimus beginning day -3, daily for 6-9 months post-transplant. Given IV as in-patient, orally as out-patient * Infusion of Cord Blood units * 2 cord blood units IV on Day 0 Routine post-transplant supportive care will be provided

Interventions

DRUGFludarabine

30 mg/m2/day IV x 6 days

DRUGMelphalan

100 mg/m2/day IV x 1 day

200 cGy on Day 0

BIOLOGICALCord Blood

2 cord blood units IV

Sponsors

Massachusetts General Hospital
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

* Hematologic malignancy for whom allogeneic stem cell transplantation is deemed clinically appropriate * Appropriate candidate for reduced intensity regimen, according to the treating physician * Lack of 6/6/ or 5/6 HLA-matched related, 8/8/ HLA-matched unrelated donor, or unrelated donor not available with a time frame necessary to perform a potentially curative stem cell transplant * Able to comply with the requirements for care after allogeneic stem cell transplantation

Exclusion criteria

* Cardiac disease: symptomatic congestive heart failure or evidence of left ventricular dysfunction * Pulmonary disease: symptomatic chronic obstructive lung disease, symptomatic restrictive lung disease * Renal disease * Hepatic disease * Neurologic disease: symptomatic leukoencephalopathy, active CNS malignancy or other neuropsychiatric abnormalities believed to preclude transplantation * HIV-positive * Uncontrolled infection * Pregnant or breast-feeding

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With a Clinically Significant Infection1 YearThe one year significant infection rate (infections requiring medical intervention) after double umbilical cord blood transplant using a novel conditioning regimen of fludarabine/melphalan/low dose total body radiation. The data is shown as the number of significant infections participants experienced during the first year, measured from the start of treatment.

Secondary

MeasureTime frameDescription
Median Time to Platelet EngraftmentFrom the time of transplantation, until the time of platelet engraftment, median duration of 52 daysThe time to platelet engraftment is measured from the time of transplantation until the time of first documented platelet engraftment. Platelet engraftment is defined as a platelet count ≥ 20,000/µL for three consecutive measurements over three or more days. The first of the three days will be designated the day of platelet engraftment. Subjects must not have had platelet transfusions during the preceding 3 days or in the following 7 days after the day of engraftment, unless the platelet transfusion is being given specifically to achieve a platelet threshold to allow an elective invasive procedure, such as a central catheter removal.
Number of Participants With Primary Graft FailureFrom the time of transplantation until 42 days post transplantationPrimary graft failure is defined as the failure to achieve an absolute neutrophil count (ANC) \>500/ µL by day 42, in the absence of relapse.
Rates of Grade II-IV and Grade III-IV Acute Graft Versus Host Disease (GVHD) at 100 Days100 DaysAcute GVHD is assessed using Consensus Criteria: Organ Classifications: * 0: No rash due to GVHD; Bilirubin \< 2 mg/dL; \< 500 mL diarrhea/ day * 1: Maculopapular rash \< 25% of body surface; Bilirubin 2-3 mg/dL; 500 to 999 mL diarrhea/ day or persistent nausea with histologic evidence of GVHD in stomach/ duodenum * 2: Maculopapular rash 25-50% of body surface; Bilirubin 3.1-6 mg/dL; 1,000 to 1,499 mL diarrhea/ day * 3: Maculopapular rash \> 50% of body surface; Bilirubin 6.1-15 mg/dL; 1,500 or more mL diarrhea/ day * 4: Generalized erythroderma with bullous formation; Bilirubin \> 15 mg/dL; Severe abdominal pain with or without ileus Overall Clinical Grade: * 0: No Stage 1-4 of any organ * I: Stage 1-2 rash and no liver or gut involvement * II: Stage 3 rash, or Stage 1 liver involvement, or Stage 1 gut involvement * III: None to Stage 3 skin rash with Stage 2-3 liver involvement, or Stage 2-4 gut involvement * IV: Stage 4 skin rash, or Stage 4 liver involvement
The Rate of Chronic GVHDFrom the time of transplantation until the time of chronic GVHD onset, up to 1 yearChronic Graft Versus Host Disease (GVHD) is assessed using the National Institutes of Health (NIH) consensus criteria.
100-day Treatment Related Mortality100 DaysThe percentage of treatment related participant deaths within 100 days of receiving umbilical cord blood transplantation. All deaths in the absence of relapse of the primary malignancy will be considered treatment related mortality.
Median Time to Neutrophil EngraftmentFrom the time of transplantation, until the time of neutrophil engraftment, median duration of 24 daysThe median number of days measured from the time of transplantation, until the first documented neutrophil engraftment. neutrophil engraftment is defined as the first of 3 consecutive days of absolute neutrophil count \> 500 neutrophils per microliter of blood.
Relapse-free Survival2 yearsThe percentage of participants that have not died or had disease progression by two years. Relapse is defined by either morphological or cytogenetic evidence of the original malignancy consistent with pre-transplant features.
Overall Survival2 yearsThe percentage of participants alive at two years
1 Year Relapse Rate1 yearThe percentage of participants that relapsed within 12 months. Relapse is defined by either morphological or cytogenetic evidence of the original malignancy consistent with pre-transplant features.
Rate of Post-transplant Lymphoma2.5 yearsThe number of participants that were found to have lymphoma post-transplant.
Median Thrombopoietin Levels After Transplant30 Days
Immune Reconstitution - Median CD4 Count at 12 Months1 Year

Countries

United States

Participant flow

Participants by arm

ArmCount
Fludarabine/Melphalan/TBI
All patients receive same therapy Fludarabine: 30 mg/m2/day IV x 6 days Melphalan: 100 mg/m2/day IV x 1 day Total Body Radiation: 200 cGy on Day 0 Cord Blood: 2 cord blood units IV
31
Total31

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyIneligible after consent/ registration2

Baseline characteristics

CharacteristicFludarabine/Melphalan/TBI
Age, Continuous57 years
Disease
Acute Lymphoblastic Leukemia (ALL)
2 Participants
Disease
Acute Myeloid Leukemia (AML)
11 Participants
Disease
Hodgkin's Disease (HD)
1 Participants
Disease
Myelodysplastic Syndromes (MDS)
8 Participants
Disease
Myeloproliferative Disorder (MPD)
2 Participants
Disease
Non-Hodgkin Lymphoma (NHL)
7 Participants
Performance Status
0
10 Participants
Performance Status
1
19 Participants
Performance Status
2
2 Participants
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
31 Participants
Sex: Female, Male
Female
9 Participants
Sex: Female, Male
Male
22 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 31
other
Total, other adverse events
26 / 31
serious
Total, serious adverse events
10 / 31

Outcome results

Primary

Number of Participants With a Clinically Significant Infection

The one year significant infection rate (infections requiring medical intervention) after double umbilical cord blood transplant using a novel conditioning regimen of fludarabine/melphalan/low dose total body radiation. The data is shown as the number of significant infections participants experienced during the first year, measured from the start of treatment.

Time frame: 1 Year

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Fludarabine/Melphalan/TBINumber of Participants With a Clinically Significant Infection0 Infections12 Participants
Fludarabine/Melphalan/TBINumber of Participants With a Clinically Significant Infection1 Infection14 Participants
Fludarabine/Melphalan/TBINumber of Participants With a Clinically Significant Infection2 Infections5 Participants
Secondary

100-day Treatment Related Mortality

The percentage of treatment related participant deaths within 100 days of receiving umbilical cord blood transplantation. All deaths in the absence of relapse of the primary malignancy will be considered treatment related mortality.

Time frame: 100 Days

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis.

ArmMeasureValue (NUMBER)
Fludarabine/Melphalan/TBI100-day Treatment Related Mortality9.7 percentage of participants
Secondary

1 Year Relapse Rate

The percentage of participants that relapsed within 12 months. Relapse is defined by either morphological or cytogenetic evidence of the original malignancy consistent with pre-transplant features.

Time frame: 1 year

ArmMeasureValue (NUMBER)
Fludarabine/Melphalan/TBI1 Year Relapse Rate20 percentage
Secondary

Immune Reconstitution - Median CD4 Count at 12 Months

Time frame: 1 Year

Population: CD4 counts were only available for 11 participants at the 12 months time point

ArmMeasureValue (MEDIAN)
Fludarabine/Melphalan/TBIImmune Reconstitution - Median CD4 Count at 12 Months362.4 cells/mm3
Secondary

Median Thrombopoietin Levels After Transplant

Time frame: 30 Days

ArmMeasureValue (MEDIAN)
Fludarabine/Melphalan/TBIMedian Thrombopoietin Levels After Transplant2500 pg/mL
Secondary

Median Time to Neutrophil Engraftment

The median number of days measured from the time of transplantation, until the first documented neutrophil engraftment. neutrophil engraftment is defined as the first of 3 consecutive days of absolute neutrophil count \> 500 neutrophils per microliter of blood.

Time frame: From the time of transplantation, until the time of neutrophil engraftment, median duration of 24 days

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis. In addition to those two participants, the 8 participants that did not achieve engraftment were not included in the analysis.

ArmMeasureValue (MEDIAN)
Fludarabine/Melphalan/TBIMedian Time to Neutrophil Engraftment24 Days
Secondary

Median Time to Platelet Engraftment

The time to platelet engraftment is measured from the time of transplantation until the time of first documented platelet engraftment. Platelet engraftment is defined as a platelet count ≥ 20,000/µL for three consecutive measurements over three or more days. The first of the three days will be designated the day of platelet engraftment. Subjects must not have had platelet transfusions during the preceding 3 days or in the following 7 days after the day of engraftment, unless the platelet transfusion is being given specifically to achieve a platelet threshold to allow an elective invasive procedure, such as a central catheter removal.

Time frame: From the time of transplantation, until the time of platelet engraftment, median duration of 52 days

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis. In addition to those two participants, the 10 participants that did not achieve engraftment were not included in the analysis.

ArmMeasureValue (MEDIAN)
Fludarabine/Melphalan/TBIMedian Time to Platelet Engraftment52 Days
Secondary

Number of Participants With Primary Graft Failure

Primary graft failure is defined as the failure to achieve an absolute neutrophil count (ANC) \>500/ µL by day 42, in the absence of relapse.

Time frame: From the time of transplantation until 42 days post transplantation

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Fludarabine/Melphalan/TBINumber of Participants With Primary Graft Failure8 Participants
Secondary

Overall Survival

The percentage of participants alive at two years

Time frame: 2 years

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis.

ArmMeasureValue (NUMBER)
Fludarabine/Melphalan/TBIOverall Survival55 percentage of participants
Secondary

Rate of Post-transplant Lymphoma

The number of participants that were found to have lymphoma post-transplant.

Time frame: 2.5 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Fludarabine/Melphalan/TBIRate of Post-transplant Lymphoma0 Participants
Secondary

Rates of Grade II-IV and Grade III-IV Acute Graft Versus Host Disease (GVHD) at 100 Days

Acute GVHD is assessed using Consensus Criteria: Organ Classifications: * 0: No rash due to GVHD; Bilirubin \< 2 mg/dL; \< 500 mL diarrhea/ day * 1: Maculopapular rash \< 25% of body surface; Bilirubin 2-3 mg/dL; 500 to 999 mL diarrhea/ day or persistent nausea with histologic evidence of GVHD in stomach/ duodenum * 2: Maculopapular rash 25-50% of body surface; Bilirubin 3.1-6 mg/dL; 1,000 to 1,499 mL diarrhea/ day * 3: Maculopapular rash \> 50% of body surface; Bilirubin 6.1-15 mg/dL; 1,500 or more mL diarrhea/ day * 4: Generalized erythroderma with bullous formation; Bilirubin \> 15 mg/dL; Severe abdominal pain with or without ileus Overall Clinical Grade: * 0: No Stage 1-4 of any organ * I: Stage 1-2 rash and no liver or gut involvement * II: Stage 3 rash, or Stage 1 liver involvement, or Stage 1 gut involvement * III: None to Stage 3 skin rash with Stage 2-3 liver involvement, or Stage 2-4 gut involvement * IV: Stage 4 skin rash, or Stage 4 liver involvement

Time frame: 100 Days

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis.

ArmMeasureValue (NUMBER)
Fludarabine/Melphalan/TBIRates of Grade II-IV and Grade III-IV Acute Graft Versus Host Disease (GVHD) at 100 Days16 percentage of participants
Secondary

Relapse-free Survival

The percentage of participants that have not died or had disease progression by two years. Relapse is defined by either morphological or cytogenetic evidence of the original malignancy consistent with pre-transplant features.

Time frame: 2 years

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis.

ArmMeasureValue (NUMBER)
Fludarabine/Melphalan/TBIRelapse-free Survival49 percentage of participants
Secondary

The Rate of Chronic GVHD

Chronic Graft Versus Host Disease (GVHD) is assessed using the National Institutes of Health (NIH) consensus criteria.

Time frame: From the time of transplantation until the time of chronic GVHD onset, up to 1 year

Population: The two participants found to be ineligible after being consented and registered were excluded from the analysis.

ArmMeasureValue (NUMBER)
Fludarabine/Melphalan/TBIThe Rate of Chronic GVHD21 percentage of participants

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