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Bone marrow stem cells do not improve short-term recovery after heart attack
Date:11/7/2012

HOUSTON (Nov. 7, 2012) Administering stem cells derived from patients' own bone marrow either three or seven days after a heart attack is safe but does not improve heart function six months later, according to a clinical trial supported by the National Institutes of Health (NIH).

The results of the trial, called Transplantation In Myocardial Infarction Evaluation (TIME), mirror a previous related study, LateTIME, which found that such cells (called autologous stem cells) given two to three weeks after a heart attack did not improve heart function. Both TIME and LateTIME were conducted by the Cardiovascular Cell Therapy Research Network (CCTRN), sponsored by the NIH's National Heart, Lung, and Blood Institute.

The findings were presented Nov. 6, 2012, at the American Heart Association 2012 Scientific Sessions in Los Angeles and appeared concurrently in the Journal of the American Medical Association.

"These cells, while safe, were not better than placebo solution in providing benefit," said Lemuel Moy, III, M.D., Ph.D., principal investigator of the CCTRN and professor of biostatistics at The University of Texas School of Public Health, part of The University of Texas Health Science Center at Houston (UTHealth). "While this one cell type showed little promise, there are several new cell types that are available and we will be studying them. Cell therapy can and likely will play a major role in the treatment of cardiovascular disease in the future."

"This study was extremely valuable even though it did not provide a demonstrated health benefit after six months," said Sonia Skarlatos, Ph.D., deputy director of NHLBI's Division of Cardiovascular Sciences and member of the CCTRN. "Heart stem cell therapy research is still in its infancy, and results from early trials have varied greatly due to differences in the numbers of stem cells injected, the delivery methods used, and the compositions of the study populations. Wi
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Contact: Deborah Mann Lake
deborah.m.lake@uth.tmc.edu
713-500-3030
University of Texas Health Science Center at Houston
Source:Eurekalert

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