Bone Marrow for Hemoglobinopathy Research

Status Completed

Clinical Trial Summary

Human participants affected with sickle cell disease or thalassemia will donate bone marrow for use in experimental laboratory models to study potential new treatments. This is an observational study using bone marrow from human participants. The investigators will use sickle cell and thalassemia mouse models to observe and evaluate the possibility of correcting these disorders through genetic alterations or drug treatment.

Clinical Trial Description

These studies are designed to evaluate the potential of retroviral vector mediated gene transfer, gene editing, or drug treatment to correct the pathophysiology of sickle cell anemia and β-thalassemia. CD34+ cells purified from bone marrow of research participants with a sickle cell syndrome or a thalassemia syndrome will be subjected to genetic editing, drug treatment, or transduced with retroviral vectors containing γ-globin coding sequences under the control of the β-globin gene promoter and including various regulatory elements chosen to enhance gene expression and to insulate regulatory elements from cellular genes at or near the integration sites. The efficiency of gene transfer and the function of the globin transgene will be evaluated in erythroid cells derived from transduced progenitors and from the progenitors in the bone marrow of immunodeficient mice engrafted with transduced, primitive hematopoietic cells. The hypothesis to be tested in this research is that a gene therapy vector, gene editing strategy, or drug modality can be designed to achieve a potentially therapeutic level of globin gene expression in maturing erythroid cells. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00669305
Study type	Observational
Source	St. Jude Children's Research Hospital
Contact
Status	Completed
Phase
Start date	May 15, 2008
Completion date	August 29, 2019

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