Clinical Trial: Modified Stem Cell Transplantation Procedure for Treating Chronic Granulomatous Disease
Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: HLA-Matched, Peripheral Blood Stem Cell Transplantation Using Low Intensity Conditioning to Treat Patients With Chronic Granulomatous Disease Who Are Actively Infected
Brief Summary:
This study will investigate the safety and effectiveness of a new stem cell transplant procedure for treating chronic granulomatous disease (CGD) in patients with active infection. CGD is an inherited disorder of neutrophils-a type of infection-fighting white blood cell-that leaves patients vulnerable to life-threatening infections. Standard treatment with antibiotics, and sometimes surgery, is not always successful, and patients with persisting infections have a poor long-term prognosis.
Transplantation of donated stem cells (cells produced by the bone marrow that mature into the different blood components-white cells, red cells and platelets) can cure CGD. However, this procedure carries a significant risk of death, particularly in patients with active infection, because it requires completely suppressing the immune system with high-dose chemotherapy and radiation. In addition, lymphocytes-another type of infection-fighting white blood cell-from the donor may cause what is called graft vs. host disease (GvHD), in which the donor cells "see" patient's cells as "foreign" and mount an immune response to reject them. To try to reduce these risks, patients in this study will be given low-dose chemotherapy and no radiation, a regimen that is easier for the body to tolerate and involves a shorter period of complete immune suppression. Also, the donor's lymphocytes will be removed from the rest of the stem cells to be transplanted, reducing the risk of GvHD.
Patients with CGD between the ages of age 1 and 55 years old who have an active non-viral infection may be eligible for this study. They will have a medical history, physical examination and blood tests (including testing for adequacy of the genetic match with the donor). A bone marrow sample will be taken to evaluate disease status. This test, done under
Detailed Summary:
Chronic Granulomatous Disease (CGD) is an inherited disorder of neutrophil function. Patients are profoundly immunocompromised and are plagued early in life with recurrent and life threatening infections. The prognosis for CGD patients whose infection persists despite appropriate medical and surgical intervention is extremely poor. Allogeneic stem cell transplantation can cure CGD however the mortality of this procedure is high for patients who are actively infected. Ongoing clinical trials at the NIH and elsewhere suggest that the use of non-myeloablative conditioning for allogeneic stem cell transplantation is safer and less toxic for patients who are free of infection at the time of transplant. The goal of this phase II study is to investigate the safety and efficacy of this novel approach to allogeneic stem cell transplantation for CGD patients who are actively infected. Following a preparative regimen designed to provide intense immunosuppression without myeloablation, patients will receive a peripheral blood stem cell graft from an HLA identical parent or sibling. Donor T-cells will be infused post-transplant if donor stem engraftment is unsatisfactory.
The end points of this study are engraftment, degree of donor-host chimerism, incidence of acute and chronic GvHD, infection status, immune reconstitution, and transplant related morbidity and mortality.
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)
Current Primary Outcome:
Original Primary Outcome:
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Original Secondary Outcome:
Information By: National Institutes of Health Clinical Center (CC)
Dates:
Date Received: October 24, 2000
Date Started: October 2000
Date Completion: November 2004
Last Updated: March 3, 2008
Last Verified: November 2004
