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Silk Road Medical Completes Enrollment In The ROADSTER Clinical Trial For Carotid Artery Disease - abc27 WHTM

Silk Road Medical Completes Enrollment In The ROADSTER Clinical Trial For Carotid Artery Disease

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SOURCE Silk Road Medical

- Novel Transcarotid Flow Reversal and Stent Procedure Uses Best Elements of the Surgical and Endovascular Approaches

SUNNYVALE, Calif., July 16, 2014 /PRNewswire/ -- Silk Road Medical, Inc. announced today the completion of enrollment in its pivotal ROADSTER study. The trial was the first of its kind to study the treatment of carotid artery stenosis by placing a stent via direct access to the common carotid artery in the neck in an entirely new minimally invasive procedure.  The device under study is the Company's ENROUTE™ Transcarotid Neuroprotection System (NPS) which incorporates proven surgical principles to protect the brain from a stroke during carotid angioplasty and stenting, and features a mechanism to divert dangerous debris away from the brain by temporarily reversing blood flow.   Data from the trial will be used to support 510(k) clearance of the ENROUTE Transcarotid NPS as well as PMA approval of the ENROUTE Transcarotid Stent System.

The carotid arteries, located on either side of the neck, are the main conduits for blood flow to the brain. Plaque formation in these arteries can put patients at risk for stroke. Stroke is the nation's third leading cause of death, killing nearly 160,000 Americans every year.  Approximately 130,000 Americans are treated for narrowing of the carotid arteries each year. 

"The ENROUTE Transcarotid NPS was designed to reduce the excess stroke risk of a carotid stent procedure, while at the same time minimizing the surgical risks of an open carotid artery surgery known as carotid endarterectomy," said Dr. Sumaira Macdonald a leading expert in the field of carotid artery disease and the Company's Chief Medical Officer.  "Until now, carotid stents were typically placed via the femoral artery approach, which is about three feet from the culprit carotid stenosis, and requires navigation of catheters and other instruments through often hostile territory, increasing the risk of stroke during or immediately after the procedure," she said. "We know that carotid stents are effective in preventing strokes in the long term, but we need a safer way to deliver them.  The Silk Road procedure moves the access point to within inches of the stenosis to avoid at-risk steps and provides a surgically-inspired method of protecting the brain throughout the simplified procedure."

By contrast, the gold standard carotid endarterectomy procedure requires a large incision in the neck and a surgery that carries some risk of nerve damage, bleeding, scarring and infection.  The Silk Road procedure is designed to reduce these surgical risks as well.  "Historically, there has not been a safe and effective minimally invasive procedure that could hold up to the clinical outcomes established by carotid endarterectomy.  This new procedure may be it," said Richard Cambria, MD, Chief, Division of Vascular and Endovascular Surgery at Massachusetts General Hospital and The Robert R. Linton MD Professor of Vascular and Endovascular Surgery at the Harvard Medical School.  "The results from our center will be announced at the VEITH Symposium."  Dr. Cambria serves as the National Co-Principle Investigator for the ROADSTER trial.

"The ROADSTER Trial included an elite, multi-disciplinary group of physicians across the US and Europe with vast experience in treating carotid disease," said Christopher Kwolek, MD, Director of the Vascular and Endovascular training program at Massachusetts General Hospital, Chief of Vascular Surgery at Newton Wellesley Hospital, and National Co-Principal Investigator for the ROADSTER Trial. "Similar to important endovascular innovations in aortic aneurysms and peripheral arterial disease, this new minimally invasive procedure will be an important step forward in the treatment of carotid artery disease for the vascular specialist."

Erica Rogers, CEO for Silk Road Medical, commented, "We believe the ROADSTER data will support clearance and approval of our planned marketing applications with the FDA. We are grateful for the collaboration of our investigators who allowed this study to complete enrollment on time.  We are quite eager to present the full results of the study in the near future."

Both the ENROUTE Transcarotid NPS and Stent System have been granted CE Mark. The ENROUTE NPS is limited by United States law to investigational use. The ENROUTE Transcarotid Stent System is not currently available in the United States.

Silk Road Medical, Inc. is a private company located in Sunnyvale, CA, that develops and manufactures less-invasive medical devices intended to improve the treatment of intra- and extra-cranial cerebrovascular disease through proprietary transcarotid access platforms.  Detailed information about Silk Road Medical and the ENROUTE System can be found at www.silkroadmed.com.

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