The University Of Minnesota’s Stem Cell Therapy Clinical Trial

The University Of Minnesota’s Stem Cell Therapy Clinical Trial

The University Of Minnesota’s Stem Cell Therapy Clinical Trial

The University Of Minnesota’s Stem Cell Therapy Clinical Trial, May Eliminate The Need For Heart Transplants


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The University of Minnesota has a long-standing tradition in both transplantation and cell therapy initiatives,” explains Daniel Garry, M.D., Ph.D.,chief of the Medical School’s Division of Cardiology and executive director of the Lillehei Heart Institute. “Our goal with these studies is to look critically at the benefits of using a patient’s own cell therapy following a heart attack.”

Led by interventional cardiologist Ganesh Raveendran, M.D., the cardiac cell therapy research team includes Garry, cardiologist Cindy Martin, M.D.,cardiothoracic surgeon Ranjit John, M.D., and research nurses Emily Caldwell, B.S.N., R.N., and Barbara Bruhn-Ding, B.S.N., R.N.

“There is no doubt that in recent decades, we have continued to significantly improve treatments for patients who have had heart attacks. Despite this, their heart function doesn’t recover as well as it should,” says Raveendran. “Ultimately, we hope that cell therapy will improve cardiac outcomes and quality of life for these patients.”


Stem cells and devices

In addition to helping to boost heart function after heart attacks, stem cell therapy may also be boosting the effectiveness of mechanical treatments for heart failure.

The U.S. Food and Drug Administration has recently authorized the team to conduct another study. Starting this fall and exclusively at the University, 24 patients with severe heart failure will receive either injections of their own stem cells or a placebo injection during the implantation of a left ventricular assist device (LVAD).

LVADs are implanted pumps that help maintain adequate circulation in patients with severe heart failure. In some cases, LVADs allow hearts to rest and recover. In other cases, they can be used as a “bridge” therapy until the patient can get a heart transplant, or when transplantation is not an option, LVADs can provide permanent circulatory support.

The University’s study will be one of the first in the nation to examine the effects of stem cell therapy during LVAD placement. It’s a natural extension of the successes the University has had since its physicians began using LVADs in 1995. Still national leaders in this field, University doctors implant nearly 80 LVADs each year.

One-third of the patients in this LVAD cell therapy study will receive a placebo injection during the pump implantation surgery, while the other two-thirds will receive millions of their own stem cells. If patients in the study eventually get heart transplants, researchers will examine their native hearts to determine whether bone marrow stem cells have grown into cardiac cells.

“The holy grail of end-stage heart failure remains myocardial recovery, so our hope is that this therapy will help the heart recover better,” says John, who directs the University’s Ventricular Assist Device Program. “After a period of three to six months, we will gradually wean down the support given by the LVAD — then determine whether the function of the native heart is improving.”

A prelude to new achievements

Throughout the past several years, investigators from seven of the University’s basic science laboratories have been focusing on human stem cells and their ability to give rise to heart cells — the results of which have helped clinical researchers fine-tune their work in preparation for these studies.

Preclinical animal studies conducted here have also contributed to this research, as has the Minnesota Molecular and Cellular Therapeutics facility on the St. Paul campus, one of only three centers in the world that processes cells for cell-therapy research and treatment.

“All of the basic science work, coupled with our experience in implanting LVADs and in processing stem cells, has served as a prelude to the innovative clinical investigations we are doing now,” Garry says.


A positive effect

Raveendran finds it rewarding to see patients become more optimistic about their prognoses — even if they don’t know whether they’ve received the stem cell therapy or a placebo.

“In this study, patients are eager and enthused,” he says. “They know that there is a two-in-three chance that they will receive stem cells, and this brings a tremendous amount of hope to them.”

For Bilkey, participating in the study has come with no regrets. After her heart attack, her heart’s ability to pump blood was reduced by half. Today tests show that her heart’s pumping function is nearly normal.

Bilkey looks forward to her main sources of daily physical activity — walking, riding her stationary bike, and keeping up with her 6-year-old and 1-year-old grandkids.

“I definitely feel better than before I had the heart attack,” says Bilkey. “I really see no negatives through my participation in this study at all. If I had to do it all over again, I certainly would.”

In a heartbeat, perhaps.

Original post University Of Minnesota blog 


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