DUBLIN - Jan. 24, 2017 - Medtronic plc (NYSE: MDT) announced today that the first procedure using the Visualase(TM) MRI-Guided Laser Ablation System has been performed in the pivotal SLATE (Stereotactic Laser Ablation for Temporal Lobe Epilepsy) clinical trial at Mayo Clinic in Rochester, Minn. The SLATE clinical trial is designed to support the expanded indication of the currently marketed Visualase(TM) system for treatment of patients with drug-resistant mesial temporal lobe epilepsy (MTLE), the most common form of partial or localization-related epilepsy.

"We're excited about this important milestone and look forward to continued recruitment in this study - which will determine the utility of the technology as a surgical treatment for patients with drug-resistant MTLE," said Co-Principal Investigator Michael Sperling, M.D., professor of Neurology at Thomas Jefferson University and director of the Jefferson Comprehensive Epilepsy Center at the Vickie and Jack Faber Institute for Neuroscience in Philadelphia, Pa.

Approximately three million people in the United States have epilepsy1, with MTLE being the most common form of partial or localization related epilepsy. It is estimated that at least one-third of MTLE patients become drug resistant2, continuing to have seizures regardless of the number or type of anti-epileptic drugs used.

"The data collected in this study will allow a comprehensive evaluation of the risks and benefits of the device in this new indication, ensuring that treating physicians are well-informed about its use," said Co-Principal Investigator Robert Gross, M.D., Ph.D. MBNA/Bowman professor of Neurosurgery and director, Functional, Stereotactic & Epilepsy Surgery Division at Emory University, Atlanta, Ga.

During the clinical trial, approximately 120 adult patients with drug-resistant MTLE will be treated at selected epilepsy centers across the United States. Emory University, Mayo Clinic, Northwell Health, Thomas Jefferson University Hospital, and University of Miami Health System are some of the institutions that will be enrolling patients in the clinical trial. After the Visualase procedure, subjects will be followed for 12 months and evaluated for freedom from seizures, quality of life, adverse events and neuropsychological outcomes. Additional information about the SLATE study and sites enrolling can be found at https://clinicaltrials.gov/ct2/show/NCT02844465

"The SLATE study is an example of Medtronic's commitment to conduct rigorous clinical research in partnership with physicians and providers. Such collaborations offer the opportunity to better serve patients through the development and analysis of new technologies and indications," said Brett Wall, senior vice president and president of Medtronic's Brain Therapies division, which is part of the Restorative Therapies Group. "A study such as SLATE offers the opportunity to gather clinical evidence that can help us transform the way epilepsy is treated."

About the Medtronic Visualase System
The Visualase MRI-Guided Laser Ablation System is cleared by the FDA to necrotize or coagulate soft tissue in neurosurgery and other surgical specialties. Through a minimally invasive procedure, laser energy is delivered to the target area using a laser applicator. As light is delivered through the laser applicator, temperatures in the target area begin to rise, destroying the unwanted soft tissue under real-time MRI guidance.

Visualase is not cleared or approved for the treatment of epilepsy. The use of Visualase for the treatment of epilepsy is investigational use only in the U.S.

Visualase technology works with MRI images for the precise destruction of the target.	Visualase MRI-Guided Laser Ablation technology is used to necrotize or coagulate soft tissue in neurosurgery and other surgical specialties.
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About Medtronic
Medtronic plc (www.medtronic.com), headquartered in Dublin, Ireland, is among the world's largest medical technology, services and solutions companies - alleviating pain, restoring health and extending life for millions of people around the world. Medtronic employs more than 88,000 people worldwide, serving physicians, hospitals and patients in approximately 160 countries. The company is focused on collaborating with stakeholders around the world to take healthcare Further, Together.

Any forward-looking statements are subject to risks and uncertainties such as those described in Medtronic's periodic reports on file with the Securities and Exchange Commission. Actual results may differ materially from anticipated results.

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1Hauser WA, Hesdorffer DC. Epilepsy: Frequency, Causes and Consequences. New York, N.Y.: Demos Press, 1990.
2Kwan P, Sander JW. The natural history of epilepsy: An epidemiological view. J Neurol Neurosurg Psychiatry. V.75(10):2004; 75: 1376-1381.

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