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Stem Cell Transplantation for Patients With Hematologic Malignancies

NCT00152139 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 33

Last updated 2009-01-29

No results posted yet for this study

Summary

Childhood leukemias which cannot be cured by chemotherapy alone may be effectively treated by allogeneic bone marrow transplantation. Moreover, for patients with chronic myelogenous leukemia (CML), allogeneic hematopoietic stem cell transplantation (HSCT) is the only proven curative modality of treatment. Patients who have received hematopoietic stem cells from an HLA matched sibling donor have proven to be less at risk for disease relapse and regimen related toxicity. However, about 70% of patients in need of HSCT do not have an HLA matched sibling donor. This necessitates the search for alternative donors, which may increase the risk of a poor outcome.

The nature of the hematopoietic stem cell graft has been implicated as a primary factor determining these outcomes. The standard stem cell graft has been unmanipulated bone marrow, but recently several advantages of T-lymphocyte depleted bone marrow and mobilized peripheral blood progenitor cells (PBPC) have been demonstrated. However, T-cell depletion may increase the risk of infectious complications and leukemic recurrence while an unmanipulated stem cell graft may increase the risk of graft vs. host disease (GVHD). A key element in long range strategies in improving outcomes for patients undergoing matched unrelated donor (MUD) HSCT is to provide the optimal graft.

The primary objective of this clinical trial is to estimate the incidence of acute GVHD in pediatric patients with hematologic malignancies who receive HSCT with an unmanipulated marrow graft. The results of this study can be used as the foundation for future trials related to engineering unrelated donor graft.

Conditions

Interventions

PROCEDURE

Allogeneic Stem Cell Transplantation

An infusion of HLA matched unrelated bone marrow or peripheral blood stem cells.

DRUG

Chemotherapy and antibodies

Participants received a standard conditioning regimen consisting of total body irradiation, cyclophosphamide, thiotepa and ATG. GVHD prophylaxis consisted of cyclosporine and Methotrexate.

Sponsors & Collaborators

Principal Investigators

  • Gregory Hale, M.D. · St. Jude Children's Research Hospital

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
2 Years
Max Age
21 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2002-05-31
Primary Completion
2005-06-30
Completion
2009-01-31

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00152139 on ClinicalTrials.gov