- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00763490
Trial Of Double Umbilical Cord Blood Transplantation
This pilot research study is to investigate the safety and effectiveness of stem cell transplantation to treat blood-related (hematopoietic) cancers, using stem cells collected from two different, umbilical cord blood donors. Subjects in this study are receiving a stem cell transplant because other treatments have failed or their disease is unlikely to respond to other treatment options.
Blood-related cancers can be treated and sometimes cured with very high doses of chemotherapy and radiation therapy, given to kill the cancer cells; however, these treatments can prove unsuccessful and can harm normal cells in the bone marrow or a patient's disease may be unlikely to respond to these treatment options.
Hematopoietic stem cells transplantation (HSCT) is a potential cure, but opportunities to perform HSCT are limited by donor availability. Only 20-30% of patients may have matched family donors. In some cases, a mismatched family donor may be suitable. For patients needing a transplant who do not have a suitably matched family donor, blood stem cells from matched unrelated donors can be used. The length of time required to identify a matched unrelated donor presents another obstacle for patients waiting to receive an HSCT.
Blood stem cells are found in umbilical cord blood (UCB), which is blood left over in the placenta (afterbirth) after a baby is born. Usually this blood is discarded with the placenta, but over the past 15 years, we have learned how to collect and freeze cord blood cells to be used for transplants at a later time. A cord blood unit is the cord blood cells collected and stored from a single placenta. More than 6,500 umbilical cord blood stem cell transplants have been done worldwide, mostly in children with leukemia. One important factor affecting the success of a cord blood transplant is the cell dose (number of stem cells in the cord blood unit / recipient's weight). Patients who receive a high cell dose (> 2.5 x 107 cells/kilogram) have better marrow recovery and a higher rate of survival than those who receive a lower cell dose.
In an attempt to make UCB transplantation possible for bigger children, adolescents and adults, researchers have tried giving two cord blood units on the same day for their transplant, one after the other. The data from more than 150 "double cord blood" transplants in adults suggest that the "double cord blood" transplants may allow bone marrow recovery and survival in patients who do not have a single cord blood unit with enough cells for successful transplantation.
This is a pilot study to research the safety and effectiveness of using two UCB units in adult and pediatric UCB transplantation when combined with a conditioning regimen called Flu/Bu4/TLI (consisting of fludarabine, busulfan and total lymphoid irradiation).
Study Overview
Status
Conditions
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
Michigan
-
Ann Arbor, Michigan, United States, 48109
- University of Michigan Cancer Center
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- The candidate must have an incurable hematological malignancy or non-malignant hematological disorder and be eligible for transplant by the University of Michigan program.
- The candidate must have a life expectancy of less than one year without transplantation.
- The candidate must have two partially HLA-matched UCB (cord blood) units.Units must be HLA-matched minimally at 4 of 6 HLA-A and B (at intermediate resolution by molecular typing) and DRB1 (at high resolution by molecular typing) loci. Units must be HLA-matched at 3 of 6 HLA- A, B, DRB1 loci with each other (using same resolution of molecular typing as indicated above).
- The candidate must have access to two appropriately HLA-matched units that are available such that one unit delivers a pre-cryopreserved nucleated cell dose of at least 2.5 x 107 per kilogram and the second unit at least 2.0 x 107 per kilogram.
Exclusion Criteria:
- The candidate is an adult or pediatric patient who has a suitable related or unrelated donor available for transplant. Suitable donors include 8/8 (HLA-A,B,C and DR, with all loci high-resolution typing) or 7/8 related or unrelated donor available within 42 days of search initiation.
- The candidate has a Karnofsky (Adult) or Lansky (Pediatrics) performance status of < 70% at the time of admission for HSCT.
- The candidate is a patient with evidence of HIV infection.
- The candidate is a patient with active bacterial, fungal or viral infection not responding to treatment. Non-response to treatment is determined by body temperature, blood culture results, and radiographic findings as applicable.
- The candidate is pregnant.
- The candidate has any medical comorbidities/conditions that, in the opinion of the transplant team, would keep the patient from complying with the needs of the protocol and/or would markedly increase the morbidity and mortality from the procedure.
- The candidate has any conditions, in the opinion of the transplant team, such as substance abuse, or severe personality disorder that would keep the patient from complying with the needs of the protocol and would markedly increase the morbidity and mortality from the procedure.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Double cord blood transplant
'full intensity, double umbilical cord, stem cell transplant' with 'Flu/Bu4 conditioning regimen'
|
stem cell transplant using two umbilical cord blood units, combined with a Flu/Bu4 conditioning regimen prior to transplantation
Fludarabine: 40 mg/m² daily on days -5, -4, -3, -2 Busulfan: 3.2 mg/kg IV daily on days -5, -4, -3, -2
one dose, 400 cGy,on day -1 or day 0, prior to cord blood infusion
Tacrolimus for GVHD (Graft Versus Host Disease Prevention) Tacrolimus - will begin on day -3 (IV or oral) for at least 180 days.
Target trough level for tacrolimus is 8-12 ng/ml.
In the absence of GVHD, tacrolimus tapering will begin on day +56 post transplant.
Mycophenolate Mofetil (MMF) for GVHD prophylaxis. MMF - will be given at a dose of 10mg/kg IV q 8 hours if the patient weight is more than 50 kg, or 15 mg/kg IV q 8 hours if less than 50 kg, beginning the morning of day -3. (If renal failure and Glomerular Filtration Rate (GFR) < 25 mL/min, the dose should not exceed 1 gm every 8 hours. (No dose adjustment for liver disease is required.) MMF should be given via IV until oral medications are tolerated. MMF will be stopped at Day +28 if no acute GVHD is seen by that time. If there is not any donor cell engraftment, MMF will be continued as directed by the attending physician. If the patient has active acute GVHD requiring systemic therapy, MMF may be continued. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Participants Alive at 1 Year After Transplant
Time Frame: 1 year
|
One-year survival rate after transplant
|
1 year
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of Patients Alive at the End of the Trial
Time Frame: 5 Years
|
Event Free Survival (EFS) was determined.
Patients were followed up to 5 years (median time of 2.35 years).
|
5 Years
|
Cumulative Incidence of Neutrophil and Platelet Engraftment
Time Frame: Day 35
|
The failure to achieve a neutrophil count > 500/uL or a platelet count >30.0 x 10e9 /L within 35 days of the stem cell infusion will be defined as primary engraftment failure.
|
Day 35
|
Incidence of Acute (Grade II-IV) and Chronic Graft-vs-host Disease(GVHD)
Time Frame: Up to 5 years
|
The percentage of patients with acute GVHD (Grade II-IV) was determined at 100 days. Patients were followed up to 5 years and the percentage of patients that developed chronic GVHD at the end of the study was tabulated. Acute GVHD is staged and graded (grade 0-IV, where grade 0 is no involvement and involvement increases by grade) by the number and extent of organ involvement. Patients can have involvement of three organs: skin (rash/dermatitis), liver (hepatitis/jaundice), and gastrointestinal tract (abdominal pain/diarrhea). |
Up to 5 years
|
Collaborators and Investigators
Investigators
- Principal Investigator: Daniel M Couriel, MD, University of Michigan Rogel Cancer Center
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- umcc 2007.137
- HUM00017515 (Other Identifier: University of Michigan Medical IRB)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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