Healthcare Industry News:  Vena Cava Filter 

Devices Interventional FDA

 News Release - July 18, 2012

FDA Clears First Ever Bi-directionally Retrievable Vena Cava Filter from Crux Biomedical

98% Deployment and Retrieval Success Rates in Trial to Prevent Pulmonary Embolism

MENLO PARK, Calif.--(Healthcare Sales & Marketing Network)--Crux Biomedical announced it has received U.S. Food and Drug Administration (FDA) clearance for its novel inferior Vena Cava Filter (VCF) with bi-directional retrieval. VCF are designed to trap blood clots that can lead to potentially fatal pulmonary embolisms among patients at risk. The Crux VCF is the first and only VCF designed to facilitate bi-directional retrieval through either the femoral or jugular veins, a key consideration when access to one or the other vein is limited.

"The Crux VCF System is the first major design innovation in Vena Cava Filters in some 40 years,” stated Mel Schatz, CEO of Crux Biomedical. "We have been pleased with both the clinical outcomes in our pivotal clinical trial and the enthusiasm expressed by physicians using the Crux VCF.” The device’s novel helical shape was designed to self-center and to conform more closely to the shape of the vena cava, as well as to reduce bends and stress that can compromise filter integrity.

By obstructing the blood flow through the lungs, pulmonary embolisms cause difficulty breathing, chest pain and palpitations. Each year in the U.S., approximately 600,000 patients develop pulmonary embolisms and an estimated 200,000 deaths occur. The primary means of prevention and therapy for pulmonary embolisms is systemic administration of anticoagulant agents. However, this treatment is contraindicated in many patients, including those with high bleeding risk, those undergoing complex surgeries and patients for whom anticoagulants were ineffective.

Patients in whom anticoagulant treatment is contraindicated require alternate treatments to reduce the ongoing pulmonary embolism risk, including VCF – small filters that are placed in the inferior vena cava, the main blood vessel returning blood from the lower part of the body to the heart, to prevent blood clots from reaching the lungs. The FDA has recommended that physicians routinely remove VCF after the risk of pulmonary embolisms is reduced, to avoid long-term complications.

"Crux designed a device that is both more versatile and simple to use," stated Tom Fogarty, M.D., noted cardiovascular surgeon and founder of Crux Biomedical. “Bi-directional deployment and retrieval are extremely helpful in situations where access to either the femoral or jugular vein is not possible. The Crux VCF with its innovative design and materials represents a paradigm shift in prevention of pulmonary embolisms in patients at risk.”

A recently completed pivotal trial consisting of 125 patients at high risk for pulmonary embolisms, called the RETRIEVE Clinical Study, was performed at 22 sites in the U.S., Australia, New Zealand and Belgium. The study results were presented at the 2012 Society for Interventional Radiology (SIR) meeting.

In the study, the technical success rate of filter deployment was 98 percent; filter retrieval success was also 98 percent. The average retrieval time was 7 minutes. By the 6-month follow up of the study, no embolizations, migrations or fractures were observed.

“The Crux device demonstrated excellent deployment, retrieval and safety profile,” stated Robert R. Mendes, M.D., Principal Investigator of the study; Associate Professor of Surgery, University of North Carolina; and Chief of Vascular Surgery, Rex UNC Healthcare. “The clinical study evaluation has demonstrated the Crux VCF can be used safely for the prevention of recurrent pulmonary embolisms.”

Crux Biomedical is located in Menlo Park, California and is focused on developing improved therapies for the human vasculature. It is funded by Alloy Ventures, Three Arch Partners, Emergent Medical Partners and Thomas Fogarty, M.D. Additional information is available at

Source: Crux Biomedical

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