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Following a Heart attack the acute loss of heart muscle cells results in a cascade of events causing an immediate decrease in cardiac function that has the potential to persist long term. Despite revascularization of the infarct related artery circulation and appropriate medical management to minimize the stresses on the heart walls, a significant percentage of patients experience permanent cardiac dysfunction and consequently remain at an increased life-time risk of experiencing adverse cardiac events, including death.
There is a great potential for stem cell therapy, using a variety of cell precursors (particularly hematopoietic,)to contribute to new blood vessel formation (and possibly limited heart muscle formation) and muscle preservation in the myocardial infarct zone. The administration of cells via an infusion through the infarct related artery appears to be feasible and result in a clinical effect in some studies.
Therefore, we propose to evaluate the safety and efficacy of a CD34+ selected stem cell product (AMR-001), administered through the infarct related coronary artery 6 to 9 days after successful infarct related artery stent placement.
The primary objective of the study is to determine the feasibility and safety of prospectively identifying patients at risk for clinically significant cardiac dysfunction following a myocardial infarction and the ability to isolate and infuse via the affected coronary circulation an autologous bone marrow derived CD34+ cell product at four dose levels.
The secondary objective of the study is to assess the effect on cardiac function and infarct region perfusion. A concurrent patient group meeting eligibility but not receiving CD34+ cells will be evaluated similar to the treated group to assess the rate of significant spontaneous improvement in cardiac function without CD34+cell infusion.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Factorial Assignment, Masking: Open Label, Primary Purpose: Treatment
Intra-coronary infusion of an autologous bone marrow derived CD34+ stem cell product
Active, not recruiting
Published on BioPortfolio: 2014-08-27T03:45:16-0400
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Techniques for the removal of subpopulations of cells (usually residual tumor cells) from the bone marrow ex vivo before it is infused. The purging is achieved by a variety of agents including pharmacologic agents, biophysical agents (laser photoirradiation or radioisotopes) and immunologic agents. Bone marrow purging is used in both autologous and allogeneic BONE MARROW TRANSPLANTATION.
A cell-separation technique where magnetizable microspheres or beads are first coated with monoclonal antibody, allowed to search and bind to target cells, and are then selectively removed when passed through a magnetic field. Among other applications, the technique is commonly used to remove tumor cells from the marrow (BONE MARROW PURGING) of patients who are to undergo autologous bone marrow transplantation.
Neoplasms located in the bone marrow. They are differentiated from neoplasms composed of bone marrow cells, such as MULTIPLE MYELOMA. Most bone marrow neoplasms are metastatic.
Glycoproteins found on immature hematopoietic cells and endothelial cells. They are the only molecules to date whose expression within the blood system is restricted to a small number of progenitor cells in the bone marrow.
Transfer of HEMATOPOIETIC STEM CELLS from BONE MARROW or BLOOD between individuals within the same species (TRANSPLANTATION, HOMOLOGOUS) or transfer within the same individual (TRANSPLANTATION, AUTOLOGOUS). Hematopoietic stem cell transplantation has been used as an alternative to BONE MARROW TRANSPLANTATION in the treatment of a variety of neoplasms.
Cardiovascular disease (CVD)
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