Stem Cell Transplantation With Identical Donors for Patients With Sickle Cell Disease

Study Overview
=================
Brief Summary
-----------------
This protocol studied the effect of administration of a myeloablative pretransplant preparative regimen followed by an infusion of donor stem cells in children with severe sickle cell disease. The donor graft consisted of bone marrow or cord blood derived from a genetically matched sibling. The primary aim of the study was to evaluate how well the donated cells migrated to the bone marrow and begin producing healthy red blood cells, white blood cells and platelets (engrafted), how well the recipients immune system recovered, and assess any regimen related toxicities including a potentially life-threatening transplant related complication called graft-versus-host-disease or GVHD.

Detailed Description
-----------------
The secondary objectives of this protocol evaluated the effect of this transplant procedure on the subsequent clinical course of patients with severe SCD. Specifically, to determine whether pre-transplant organ dysfunction (brain, heart, lung, kidney, liver, spleen, etc) resultant from sickle hemoglobinopathy can be reversed following this particular transplant procedure.

Official Title
-----------------
Allogeneic Stem Cell Transplantation From HLA/MLC Genotype Identical Donors for Patients With High Risk Sickle Cell Disease

Conditions
-----------------
Sickle Cell Disease

Intervention / Treatment
-----------------
* Drug: Busulfan, Cyclophosphamide, Horse ATG
* Procedure: Allogeneic stem cell transplant


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion criteria: Diagnosis of severe' disease is denoted by one of the following: Previous central nervous system vaso-occlusive episode with or without residual neurologic findings or Frequent painful vaso-occlusive episodes with significant interference with normal life activities and which necessitates chronic transfusion therapy or Recurrent SCD chest syndrome events which necessitate chronic transfusion therapy. Exclusion criteria: Patient with SCD chronic lung disease greater than or equal to stage 3 Patient with severe renal dysfunction defined as creatinine clearance < 40 ml/min/1.73m2. Patient with severe cardiac dysfunction defined as echocardiogram shortening fraction < 25%. Patient with HIV infection. Pregnant or lactating. Patient with unspecified chronic toxicity that in the opinion of the Principal Investigator is serious enough to detrimentally affect the patient's capacity to tolerate SCT. Patient or patient's guardian(s) unable to understand the nature and risks inherent in the BMT process

Ages Eligible for Study
-----------------
Maximum Age: 21 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: 1<br> | Drug: Busulfan, Cyclophosphamide, Horse ATG<br>* Transplant recipients received a myeloablative conditioning regimen of cyclophosphamide, Anti-Thymocyte Globulin (horse), and Busulfan. Cyclosporine and methotrexate were administered for GVHD prophylaxis.<br>Procedure: Allogeneic stem cell transplant<br>* Allogeneic stem cell transplant Matched sibling donor transplant Cord blood transplant<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To evaluate engraftment, GVHD, hematopoietic and immune reconstitution, and regimen-related mortality and morbidity in patients with severe sickle cell disease undergoing transplant using either HLA matched sibling bone marrow or cord blood grafts. |  | March 2007 | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Anemia, Sickle Cell