Donor Stem Cell Transplant in Treating Young Patients With Myelodysplastic Syndrome, Leukemia, Bone Marrow Failure Syndrome, or Severe Immunodeficiency Disease

Phase 1

Completed

• Conditions: Congenital Amegakaryocytic Thrombocytopenia; Leukemia; Myelodysplastic Syndromes; Severe Congenital Neutropenia
• Interventions: Biological: anti-thymocyte globulin; Biological: therapeutic allogeneic lymphocytes; Drug: fludarabine phosphate; Drug: thiotepa; Procedure: allogeneic bone marrow transplantation; Procedure: allogeneic hematopoietic stem cell transplantation; Procedure: in vitro-treated peripheral blood stem cell transplantation; Radiation: total-body irradiation

• Registration Number: NCT00295971
• Lead Sponsor: University of California, San Francisco

Brief Summary

RATIONALE: Giving chemotherapy and total body irradiation before a donor bone marrow transplant or peripheral blood stem cell transplant helps stop the growth of cancer cells. It also helps 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. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving antithymocyte globulin and removing the T cells from the donor cells before transplant may stop this from happening.

PURPOSE: This phase I trial is studying the side effects and best dose of donor T cells and antithymocyte globulin when given together with chemotherapy and total-body irradiation in treating young patients who are undergoing T-cell depleted donor stem cell transplant for myelodysplastic syndrome, leukemia, bone marrow failure syndrome, or severe immunodeficiency disease.

Detailed Description

OBJECTIVES:

* Determine the efficacy and toxicity of stem cell-enriched, T-cell-depleted, haplocompatible allogeneic hematopoietic stem cell transplantation in children with high-risk myelodysplastic syndromes, high-risk leukemia, severe acquired or congenital cytopenias, or primary immunodeficiency diseases.

* Determine the toxicity of a fludarabine and thiotepa-containing regimen in combination with lower doses of antithymocyte globulin in these patients.

* Determine the engraftment rate in patients treated with this regimen.

* Define T-cell reconstitution in these patients.

* Determine the toxicity and effects of administering stem cell and T-cell boosts after transplantation on hematopoiesis and immune reconstitution in these patients.

OUTLINE: This is a dose-escalation study of donor CD3+ cells and antithymocyte globulin (ATG).

* Cytoreductive regimen: Patients undergo total body irradiation twice daily on days -9 to -7. Patients also receive fludarabine IV on days -6 to -2, thiotepa IV every 12 hours on day -6, and ATG IV on days -5 to -2.

* Transplantation: Patients undergo CD34-enriched, T-cell-depleted, haplocompatible allogeneic peripheral blood stem cell or bone marrow transplantation on day 0.

* Donor T-cell infusion:Patients with no active graft-vs-host disease and evidence of engraftment but low absolute CD34+ lymphocyte count at 12 weeks post transplant may receive donor CD3+ cells at 4-week intervals.

* Donor stem cell boost: Patients with engraftment but either cytokine or transfusion dependent at 12 weeks post transplant may receive a boost of donor CD34+ cells.

Cohorts of 3-6 patients receive escalating doses of donor CD3+ cells and ATG until the optimum is determined. The optimum dose is defined as the dose at which both engraftment and T-cell recovery occur, without dose-limiting toxicity, in ≥ 5 of 6 patients.

After the completion of study treatment, patients are followed periodically for 5 years and then every 5 years thereafter.

PROJECTED ACCRUAL: A total of 21 patients will be accrued for this study.

Study Timeline

• Study Start: 2005-04
• Study First Submitted: 2006-02-23
• Study First Submitted QC: 2006-02-23
• Study First Posted: 2006-02-24
• Primary Completion: 2011-12
• Study Completion: 2011-12
• Status Verified: 2012-11
• Last Update Submitted: 2012-11-08
• Last Update Posted: 2012-11-12

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 21

Inclusion Criteria

Not provided

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Exclusion Criteria

Not provided

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Single arm of transplant	anti-thymocyte globulin	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant
Single arm of transplant	therapeutic allogeneic lymphocytes	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant
Single arm of transplant	thiotepa	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant
Single arm of transplant	allogeneic bone marrow transplantation	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant
Single arm of transplant	allogeneic hematopoietic stem cell transplantation	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant
Single arm of transplant	in vitro-treated peripheral blood stem cell transplantation	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant
Single arm of transplant	total-body irradiation	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant
Single arm of transplant	fludarabine phosphate	Receiving haplocompatible T cell depleted peripheral blood stem cell transplant

Primary Outcome Measures

Name	Time	Method
Engraftment at 4 weeks post bone marrow transplantation through 100 days	100 days

Secondary Outcome Measures

Name	Time	Method
Survival assessed monthly for 6 months, every 3 months for 2 years, every 6 months for 1 year, and then yearly for 5 years post transplantation	1 year
Disease-free survival and infection assessed monthly for 6 months, every 3 months for 2 years, every 6 months for 1 year, and then yearly for 5 years post transplantation	1 year
Graft-versus-host disease assessed monthly for 6 months, every 3 months for 2 years, every 6 months for 1 year, and then yearly for 5 years post transplantation	2 years
CD4 count in blood < 100/mm³ at 12 weeks	12 weeks

Trial Locations

Locations (2)

Lineberger Comprehensive Cancer Center at University of North Carolina - Chapel Hill; 🇺🇸 Chapel Hill, North Carolina, United States

UCSF Helen Diller Family Comprehensive Cancer Center; 🇺🇸 San Francisco, California, United States