NewYork-Presbyterian Hospital and Columbia University Medical Center, together with the Cardiovascular Research Foundation (CRF), announced that its landmark study comparing the safety and efficacy of drug-eluting stents and bare-metal stents was published in the May 7 New England Journal of Medicine.
The study, HORIZONS-AMI (Harmonizing Outcomes with RevascularIZatiON and Stents in Acute Myocardial Infarction), showed that in heart attack patients undergoing angioplasty, the use of paclitaxel-eluting stents reduces rates of target lesion revascularization (TLR) and binary angiographic restenosis when compared to the use of bare-metal stents after one year.
Additionally, the primary safety measure of major adverse cardiovascular events (MACE), including death, reinfarction, stent thrombosis and stroke established the non-inferiority of drug-eluting stents with respect to safety through one year.
The study was led by Dr. Gregg W. Stone, director of cardiovascular research and education in the Center for Interventional Vascular Therapy at NewYork-Presbyterian Hospital/Columbia University Medical Center; and professor of medicine at Columbia University College of Physicians and Surgeons. The research was sponsored and managed by the Cardiovascular Research Foundation with research grant support from Boston Scientific Corporation and The Medicines Company.
In the trial, the use of paclitaxel-eluting stents resulted in a significant reduction of ischemia-driven target-lesion revascularization (TLR) at 12 months (4.5% vs. 7.5%). TLR, which was the primary efficacy endpoint of the trial, refers to the rate at which a particular lesion re-narrows following stent implantation severely enough to require either a repeat angioplasty or bypass surgery operation.
The use of paclitaxel-eluting stents also resulted in a significant reduction in binary restenosis after 13 months, which is the rate at which the artery re-narrows at least 50 percent following implantation of the stent, and was the secondary efficacy endpoint of the trial. The paclitaxel-eluting stent had a rate of 10.0 percent and the bare-metal stent had a rate of 22.9 percent.
"Outcomes from prior registry and randomized trials of drug-eluting stents compared with bare-metal stents in heart attack patients have been conflicting. These results now provide definitive evidence that paclitaxel-eluting stents are superior in efficacy to bare-metal stents and have a comparable safety profile at one year," says Dr. Stone. "The findings from the HORIZONS-AMI trial will have a major impact on how decisions are made regarding drug-eluting and bare-metal stents in the highest-risk patients, those in the early hours of a heart attack. This study removes much of the uncertainty and concern about the efficacy and safety of drug-eluting stents in this clinical setting. Moreover, all of the patients in this trial will be followed long-term to ensure that these favorable results are maintained."
The HORIZONS-AMI trial, a prospective, open-label, multicenter, controlled study, enrolled 3,602 heart attack patients at 123 centers in 11 countries, 3,006 of whom were randomized to paclitaxel-eluting stents versus otherwise identical bare-metal stents.
Co-authors include Drs. Alexandra J. Lansky, George Dangas and Roxana Mehran, Ms. Alison Kellock and Ms. Helen Parise of NewYork-Presbyterian/Columbia; Dr. S. Chiu Wong of NewYork-Presbyterian Hospital/Weill Cornell Medical Center; Dr. Stuart J. Pocock of the London School of Hygiene and Tropical Medicine, London; Dr. Bernard J. Gersh of Mayo Clinic, Rochester, Minn.; Dr. Bernhard Witzenbichler of Charité Campus Benjamin Franklin, Berlin; Dr. Martin Möckel of Charité Campus Virchow-Klinikum, Berlin; Dr. Giulio Guagliumi of Ospedali Riuniti di Bergamo, Bergamo, Italy; Dr. Jan Z. Peruga of Medical University, Lodz, Poland; Dr. Dariusz Dudek of Jagiellonian University, Krakow; Dr. Andrzej Ochala of the Silesian Medical Academy, Katowice, Poland; Dr. Bruce R. Brodie of LeBauer Cardiovascular Research Foundation and Moses Cone Hospital, Greensboro, N.C.
For more information, patients may call (866) NYP-NEWS.
NewYork-Presbyterian Hospital, based in New York City, is the nation's largest not-for-profit, non-sectarian hospital, with 2,242 beds. The Hospital has nearly 2 million inpatient and outpatient visits in a year, including more than 230,000 visits to its emergency departments -- more than any other area hospital. NewYork-Presbyterian provides state-of-the-art inpatient, ambulatory and preventive care in all areas of medicine at five major centers: NewYork-Presbyterian Hospital/Weill Cornell Medical Center, NewYork-Presbyterian Hospital/Columbia University Medical Center, NewYork-Presbyterian Morgan Stanley Children's Hospital, NewYork-Presbyterian Hospital/The Allen Pavilion and NewYork-Presbyterian Hospital/Westchester Division. One of the largest and most comprehensive health care institutions in the world, the Hospital is committed to excellence in patient care, research, education and community service. NewYork-Presbyterian is the #1 hospital in the New York metropolitan area and is consistently ranked among the best academic medical institutions in the nation, according to U.S.News & World Report. The Hospital has academic affiliations with two of the nation's leading medical colleges: Weill Cornell Medical College and Columbia University College of Physicians and Surgeons. For more information, visit www.nyp.org.
Weill Cornell Medical College
Weill Cornell Medical College, Cornell University's medical school located in New York City, is committed to excellence in research, teaching, patient care and the advancement of the art and science of medicine, locally, nationally and globally. Weill Cornell, which is a principal academic affiliate of NewYork-Presbyterian Hospital, offers an innovative curriculum that integrates the teaching of basic and clinical sciences, problem-based learning, office-based preceptorships, and primary care and doctoring courses. Physicians and scientists of Weill Cornell Medical College are engaged in cutting-edge research in areas such as stem cells, genetics and gene therapy, geriatrics, neuroscience, structural biology, cardiovascular medicine, transplantation medicine, infectious disease, obesity, cancer, psychiatry and public health -- and continue to delve ever deeper into the molecular basis of disease and social determinants of health in an effort to unlock the mysteries of the human body in health and sickness. In its commitment to global health and education, the Medical College has a strong presence in places such as Qatar, Tanzania, Haiti, Brazil, Austria and Turkey. Through the historic Weill Cornell Medical College in Qatar, the Medical College is the first in the U.S. to offer its M.D. degree overseas. Weill Cornell is the birthplace of many medical advances -- including the development of the Pap test for cervical cancer, the synthesis of penicillin, the first successful embryo-biopsy pregnancy and birth in the U.S., the first clinical trial of gene therapy for Parkinson's disease, the first indication of bone marrow's critical role in tumor growth, and most recently, the world's first successful use of deep brain stimulation to treat a minimally conscious brain-injured patient. For more information, visit www.med.cornell.edu.
Columbia University Medical Center
Columbia University Medical Center provides international leadership in basic, pre-clinical and clinical research, in medical and health sciences education, and in patient care. The Medical Center trains future leaders and includes the dedicated work of many physicians, scientists, public health professionals, dentists, and nurses at the College of Physicians & Surgeons, the Mailman School of Public Health, the College of Dental Medicine, the School of Nursing, the biomedical departments of the Graduate School of Arts and Sciences, and allied research centers and institutions. Established in 1767, Columbia's College of Physicians and Surgeons was the first institution in the country to grant the M.D. degree and is now among the most selective medical schools in the country. Columbia University Medical Center is home to the largest medical research enterprise in New York City and state and one of the largest in the United States. For more information, please visit www.cumc.columbia.edu.Office of Public Affairs
Jennifer Homa | EurekAlert!
Further reports about: > Cardiovascular Research Foundation > Drug-eluting stents > Medical Wellness > Medicine > RevascularIZatiON > TLR > acute myocardial infarction > bare-metal stents > binary restenosis > cardiovascular disease > gene therapy > heart attack patients > paclitaxel-eluting stents > target lesion revascularization
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