Haploidentical Stem Cell Transplantation for Patients With Hematologic Malignancies

This study has been completed.
Sponsor:
Information provided by:
St. Jude Children's Research Hospital
ClinicalTrials.gov Identifier:
NCT00186823
First received: September 9, 2005
Last updated: January 28, 2009
Last verified: January 2009
  Purpose

Blood and marrow stem cell transplant has improved the outcome for patients with high-risk hematologic malignancies. However, most patients do not have an appropriate HLA (immune type) matched sibling donor available and/or are unable to identify an acceptable unrelated HLA matched donor through the registries in a timely manner. Another option is haploidentical transplant using a partially matched family member donor.

Although haploidentical transplant has proven curative in many patients, this procedure has been hindered by significant complications, primarily regimen-related toxicity including graft versus host disease (GVHD) and infection due to delayed immune reconstitution. These can, in part, be due to certain white blood cells in the graft called T cells. GVHD happens when the donor T cells recognize the body tissues of the patient (the host) are different and attack these cells. Although too many T cells increase the possibility of GVHD, too few may cause the recipient's immune system to reconstitute slowly or the graft to fail to grow, leaving the patient at high-risk for significant infection.

This research project will investigate the use of particular pre-transplant conditioning regimen (chemotherapy, antibodies and total body irradiation) followed by a stem cell infusion from a "mismatched" family member donor. Once these stem cells are obtained they will be highly purified in an effort to remove T cells using the investigational CliniMACS stem cell selection device. The primary goal of this study will be to determine the rate of neutrophil and platelet engraftment, as well as the degree and rate of immune reconstitution in the first 100 days posttransplant for patients who receive this study treatment. Researchers will also study ways to decrease complications that may occur with a transplant from a genetically mismatched family donor.


Condition Intervention Phase
Leukemia, Acute Lymphocytic (ALL)
Leukemia, Myeloid, Acute(AML)
Leukemia, Myeloid, Chronic(CML)
Juvenile Myelomonocytic Leukemia(JMML)
Hemoglobinuria, Paroxysmal Nocturnal (PNH)
Lymphoma, Non-Hodgkin (NHL)
Myelodysplastic Syndrome (MDS)
Device: Miltenyi Biotec CliniMACS
Procedure: Stem Cell Transplantation
Drug: TBI, systemic chemotherapy and antibodies as follows:
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Haploidentical Stem Cell Transplantation Utilizing Purified CD34+ Hematopoietic Cells for Patients With Hematologic Malignancies

Resource links provided by NLM:


Further study details as provided by St. Jude Children's Research Hospital:

Primary Outcome Measures:
  • To describe rate of hematopoietic and immune reconstitution in first 100 days posttransplant for pediatric patients with high-risk hematologic malignancies receiving haploidentical transplant processed with investigational CliniMACS cell sorting device. [ Time Frame: September 2005 ] [ Designated as safety issue: Yes ]

Enrollment: 57
Study Start Date: March 2002
Study Completion Date: January 2009
Primary Completion Date: September 2005 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
1 Device: Miltenyi Biotec CliniMACS
A stem cell selection device.
Procedure: Stem Cell Transplantation
An infusion of HLA mismatched family member donor stem cells processed through the use of the investigational Miltenyi Biotec CliniMACS device.
Drug: TBI, systemic chemotherapy and antibodies as follows:
Transplant recipients received a myeloablative conditioning regimen consisting of total body irradiation, thiotepa, cyclophosphamide, ATG, and OKT3. Rituximab was provided prior to transplant for PTLPD prophylaxis. In addition to T cell depletion of the donor product, cyclosporine was administered for GVHD prophylaxis.

Detailed Description:

Secondary outcome evaluations for this clinical study include the following:

  • To estimate overall survival, disease free survival and event free survival for these patients
  • To estimate the incidence of grade 2 to 4 acute GvHD in these patients
  • To estimate the incidence of chronic GvHD and graft failure in these patients
  • To estimate the incidence of non-hematologic peri-transplant regimen-related toxicity and regimen-related mortality in the first 100 days after transplantation in these patients
  • To estimate the number of patients who require donor lymphocyte infusions and/or stem cell boosts after transplantation in this group of patients and evaluate its impact on immune reconstitution and engraftment
  • To estimate the number of patients who develop evidence of EBV reactivation or post transplant lymphoproliferative disease (PTLPD) post transplant in this group of patients
  • Describe the pharmacokinetics of rabbit anti-thymocyte globulin (rATG) in patients receiving allogeneic transplantation and determine the frequency of rATG antibody development
  • Explore dose and patient characteristics as determinants of active rATG pharmacokinetic parameters

Originally this study began as a randomized comparison of two methods of stem cell selection utilizing the CliniMACS device. Both arms provided a purified product of CD34+ hematopoietic cells that was depleted of T-lymphocytes. One arm utilized a positive selection methodology using an anti-CD34 antibody and the other arm utilized negative selection with the anti-CD3 antibody OKT-3. There were no toxicities noted that would have required the study to be interrupted early, however, due to low accrual, it was decided to redesign the study. The new design focused on the standard arm utilizing negative selection, and all subsequent participants were treated in that manner. The patients who were treated on the positive selection arm are continuing to be monitored as specified in the original protocol, but will be reported in a descriptive manner only. The primary and secondary objectives of the current version of this study will be answered only by those patients receiving a haploidentical stem cell transplant utilizing a negative selection methodology.

  Eligibility

Ages Eligible for Study:   2 Years to 21 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Lacking a HLA-identical sibling or unrelated donor matched at 6 HLA loci formally requested within an approximate 90 day period from search initiation and who has a mismatched family member donor available
  • At least 2 and less than or equal to 21 years of age

    • Must have one of the following diagnosis:
    • Acute lymphoid leukemia (ALL) in second, third, or subsequent remission.
    • ALL in first remission but high risk for relapse.
    • Acute myeloid leukemia (AML) in relapse or remission.
    • Secondary AML / MDS
    • Chronic myeloid leukemia (CML)
    • Juvenile myelomonocytic leukemia (JMML).
    • Myelodysplastic syndrome (MDS).
    • Paroxysmal nocturnal hemoglobinuria (PNH)
    • Non-Hodgkin lymphoma in second or subsequent CR
  • Patients with a shortening fraction ≥ 25%
  • Patients with a creatinine clearance ≥ 40cc/min/1.73m^2
  • Patients with FVC ≥ 40% of predicted or pulse oximetry ≥ 92% on room air
  • Patients with direct bilirubin ≤ 3 mg/dL or SGPT ≤ 500 U/L
  • Patients with a Karnofsky or Lansky (age dependent) performance score of ≥ 70
  • Mismatched family member donor is available, HIV negative and ≥ 18 years of age

Exclusion Criteria:

  • Patients who have received a previous hematopoietic stem cell allograft
  • Patients with a known allergy to rabbit or murine products
  • Patients with isolated CNS, testicular or other isolated extramedullary site of relapse
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00186823

Locations
United States, Tennessee
St. Jude Children's Research Hospital
Memphis, Tennessee, United States, 38105
Sponsors and Collaborators
St. Jude Children's Research Hospital
Investigators
Principal Investigator: Gregory A. Hale, M.D. St. Jude Children's Research Hospital
  More Information

Additional Information:
No publications provided

Responsible Party: G. Hale, MD, Principal Investigator, St. Jude Children's Research Hospital
ClinicalTrials.gov Identifier: NCT00186823     History of Changes
Other Study ID Numbers: HAPSCT
Study First Received: September 9, 2005
Last Updated: January 28, 2009
Health Authority: United States: Food and Drug Administration

Keywords provided by St. Jude Children's Research Hospital:
Haploidentical stem cell transplant
Allogeneic stem cell transplant
Mismatched family member stem cell donor transplant
Bone marrow transplantHigh risk hematologic malignancies

Additional relevant MeSH terms:
Neoplasms
Hemoglobinuria
Hemoglobinuria, Paroxysmal
Leukemia
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Leukemia, Myeloid, Acute
Leukemia, Myeloid
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
Lymphoma
Lymphoma, Non-Hodgkin
Myelodysplastic Syndromes
Preleukemia
Leukemia, Myelomonocytic, Acute
Leukemia, Myelomonocytic, Chronic
Leukemia, Myelomonocytic, Juvenile
Hematologic Neoplasms
Proteinuria
Urination Disorders
Urologic Diseases
Urological Manifestations
Signs and Symptoms
Anemia, Hemolytic
Anemia
Hematologic Diseases
Bone Marrow Diseases
Neoplasms by Histologic Type
Leukemia, Lymphoid
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders

ClinicalTrials.gov processed this record on September 14, 2014