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Amorcyte Stem Cell Therapy Demonstrates Clinically Significant Reperfusion in Severe Heart Attack Patients

ALLENDALE, N.J., Dec. 21, 2010 /PRNewswire/ -- The American Heart Journal today reported results of a clinical trial evaluating Amorcyte, Inc.'s lead product candidate, AMR-001 for the treatment of damaged heart muscle following acute myocardial infarction (AMI).  Data demonstrated a significant relationship between cell dose and biologic effect. This is the first and only study to prospectively define a dose of a purified and potent autologous (self-donating) stem cell therapy that resulted in a significant improvement in perfusion, a trend towards improved cardiac function and the potential to reduce subsequent adverse cardiac events following AMI.

The report was authored by researchers from Emory University, Northwestern University, Texas Heart Institute, The Christ Hospital Heart and Vascular Center in Cincinnati, Ohio, Mayo Clinic College of Medicine, Amorcyte, Inc. and Progenitor Cell Therapy, LLC.

The 31 patients in the Phase I trial were randomly assigned to an autologous stem cell harvest group (cells were harvested from the patient's own bone marrow) or control group five days after an ST elevation myocardial infarction (STEMI) characterized by a prolonged period of hypoperfusion (blocked blood supply).  CD34+ cells having CXCR-4+ receptors were then isolated from the bone marrow, and enriched to increase potency using Amorcyte's patented technology into five, 10 and 15 million cell doses.  The cells were infused into the patient via the infarct-related artery seven to 11 days following the STEMI – the optimal time frame to attempt to prevent adverse ventricular remodeling.  Caused by the progressive decline in heart muscle function following an AMI, ventricular remodeling can lead to permanent heart damage and increase the risk of recurrent heart attack, other adverse cardiac events and death. 

The study results demonstrated that patients receiving 10 to 15 million cells (n=9) experienced significant improvement in resting perfusion rates at six months as compared to patients receiving 5 million cells (n=6) and control (n=15), as measured by the SPECT total severity score, (-256 versus +13, p=0.01).  Furthermore, patients receiving 10 or more million cells showed a trend towards improvement in ejection fraction, the percentage of blood pumped out of a ventricle with each heartbeat, (+4% versus +1%); end systolic volume (-5.7mL versus -0.1mL); and infarct size, tissue death due to loss of adequate blood supply, (-10% versus -3%) at six month follow-up. 

"AMR-001 showed the potential for a patient's own stem cells to reduce serious long-term complications from a heart attack," said Arshed Quyyumi, M.D., FRCP, FACC, Professor of Medicine, Division of Cardiology, at Emory University School of Medicine and the trial's principal investigator and co-author of the report.  "This novel therapy may help severe heart attack patients, who are at the most risk for further downstream events.  I look forward to further investigation of AMR-001 and its potential benefits in the care of heart attack patients."  

Of the 1 million heart attacks in the U.S. each year, nearly 20 percent are severe enough to cause ventricular remodeling. Amorcyte's patented technologies and cGMP (current good manufacturing practices) manufacturing processes address the therapeutic and commercial challenges to post-MI stem cell treatment. Unlike other approaches, Amorcyte's technology has established stem cell product potency, purity, sterility and dose, along with product shelf-life. 

"This publication further demonstrates the potential importance AMR-001 may have on the treatment of heart attack patients," said Andrew Pecora, M.D., Amorcyte Founder and Chief Science Officer  "AMR-001 is the first stem cell therapy to demonstrate neoangiogenesis (formation of new blood vessels) in a threshold dose, in heart muscle damaged from a severe heart attack.  We look forward to further evaluating AMR-001 in a larger Phase II trial where we look toward duplicating the neoangiogenisis achieved in the Phase I trial and also to achieve a significant reduction in downstream adverse events typically resulting from AMI."

About Cardiovascular Disease

It is estimated that each year there are approximately 1.1 million instances of acute myocardial infarction (AMI).  160,000 AMIs are severe enough to cause ventricular remodeling leading to further tissue damage over time and downstream adverse events including premature death, recurrent myocardial infarction, congestive heart failure, significant arrhythmias and acute coronary syndrome.  Amorcyte's therapy aims to limit ventricular remodeling.

About Amorcyte, Inc.

Amorcyte is a privately held biotechnology company developing cell therapy products to treat cardiovascular disease.  Its lead product AMR-001, for the prevention of major adverse cardiac events following acute myocardial infarction (AMI), has completed Phase I clinical trials demonstrating feasibility, safety and biologic activity at a threshold dose.  This is the first stem cell trial in AMI ever conducted that has prospectively established a significant relationship between dose and effect.  Amorcyte has partnered with Progenitor Cell Therapy, a leading provider of clinical, manufacturing and other services for the cell therapy industry, to provide Amorcyte with a pharmaceutical grade cGMP manufactured product that can be distributed commercially.  Amorcyte was founded by Andrew Pecora, M.D., Chairman of The John Theurer Cancer Center at Hackensack University Cancer Center, with initial investment by Novitas Capital and Colt Ventures.  Additional information about Amorcyte can be found at:

SOURCE Amorcyte, Inc.
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