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Thermedical Announces FDA Investigational Device Exemption Approval to Begin US Clinical Study of Durablate Catheter for Treatment of Ventricular Tachycardia


WALTHAM, Mass., July 31, 2018 – Thermedical® announced today that the U.S. Food and Drug Administration (FDA) has approved its Investigational Device Exemption (IDE) application for the Early Feasibility Study (EFS) of the groundbreaking Durablate™ ablation catheter. The single-arm, observational study is designed to evaluate the safety and effectiveness of the Durablate catheter to treat ventricular tachycardia (VT), a leading cause of Sudden Cardiac Death in the U.S.


The target population consists of patients who have already been treated with medicine, have an Implantable Cardioverter Defibrillator (ICD), and who have had a conventional ablation procedure to treat VT, yet all their treatments have failed. The study is scheduled to begin in 2018 at Mayo Clinic under the direction of Douglas L. Packer, M.D., Professor of Medicine, and at Loyola University of Chicago Stritch School of Medicine, under the direction of David Wilber, M.D., Medical Director of Clinical Electrophysiology.


“Receiving IDE approval to begin clinical testing of our innovative ablation therapy in patients is an important next step to advance treatment to reduce or potentially eliminate VT episodes,” said Michael Curley, Ph.D., FHRS, co-founder and chief executive officer of Thermedical. “A successful therapy would significantly improve the quality-of-life for the more than one million people who develop, or are at high risk for developing VT annually.


“Ablation therapy for the treatment of VT today is problematic, resulting in extremely long procedures and a low success rate,” continued Dr. Curley. “There is significant need for an effective ablation therapy that can serve as an adjunct to, or as a possible replacement for ICDs. We believe our solution may be a low-cost alternative for treating VT, and it might save the US healthcare system significant costs associated with VT treatment today.”


Implantable Cardioverter Defibrillators are the current standard-of-care treatment for patients suffering from VT; however, this approach does not stop the progression of the disease or provide a cure. In addition, ICDs can be costly and painful, and may substantially reduce a patient’s quality of life. VT patients who have ICDs and recurrent VT may be treated today with conventional RF ablation, which is a lengthy procedure that has a success rate of approximately 50 percent[1].


Thermedical’s patented ablation technology uses heat to kill the damaged heart muscle cells that are causing VT. The heat is delivered by the Durablate catheter, which simultaneously injects a precise flow of hot saline together with controlled RF energy into the heart tissue. This combination is an advanced form of biological heat transport that is 20 times more effective than conventional RF ablation methods. Compared to conventional VT ablation catheters, Durablate can more accurately control the ablation size, and it can treat tissue that is deeper in the heart wall, which is where life-threatening arrhythmias (abnormal, rapid heart rhythm) that cause VT are often located.

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* Research reported in this publication was supported by the National Heart, Lung, And Blood Institute of the National Institutes of Health under Award Number R44HL132746. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

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