FDA Approves Mainstay Medical’s ReActiv8 Implant for Low Back Pain

Mainstay Medical Holdings plc announced the U.S. Food and Drug Administration (FDA) has approved the Company’s Premarket Approval (PMA) application for ReActiv8, its implantable neurostimulation system to treat intractable chronic low back pain.
 
Jason Hannon, CEO of Mainstay, said: “I am so proud of our team and the dedicated physicians who managed our clinical trials and cared for their patients. We are thrilled to receive FDA approval of ReActiv8, which is designed to be a restorative treatment and represents a new option for patients suffering with chronic low back pain. This disease affects millions of people around the world, and our clinical data demonstrates that ReActiv8 therapy provides progressive improvements in pain and disability over time, both in magnitude of effect and the proportion of patients who benefit from the treatment. This therapy has the potential to improve quality of life for the most severely-affected patients, and we look forward to making it available to U.S. patients and physicians beginning in the first half of 2021. This will build upon our growing business in Europe and our upcoming launch in Australia.”
 
“This milestone is the culmination of a development process over many years,” continued Mr. Hannon. “I would like to thank every member of our team, past and present, and in particular our clinical investigators, their teams and clinical study patients for their support and contributions.”
 
Dr. Chris Gilligan, Chief, Division of Pain Medicine, Department of Anaesthesiology, Perioperative and Pain Medicine, Brigham & Women’s Hospital, Assistant Professor of Anaesthesia, Harvard Medical and Principal Investigator of the pivotal ReActiv8-B study, said: “ReActiv8 fills an important unmet clinical need of patients suffering from chronic low back pain. Patients indicated for ReActiv8 therapy have generally tried numerous other treatments, including physical therapy and pain medications, and many are on long-term opioids to manage their pain. I have seen ReActiv8 provide durable improvements in back pain, the disabling effects of back pain, and quality of life. I am proud to have served as Principal Investigator of this landmark trial, and I look forward to sharing this experience with my physician colleagues who want to start using ReActiv8 in their patients.”
 
Dr. Robert Levy, a prominent neurosurgeon and pioneer in the field of neuromodulation, commented: “ReActiv8 represents a new treatment category for this severely-affected patient population. The use of neuromodulation to target underlying functional and motor-control issues in patients with musculoskeletal back pain can address a large unmet clinical need. ReActiv8 is designed as a restorative therapy for those suffering from musculoskeletal pain and does not compete with other forms of neuromodulation such as spinal cord stimulation. These patients are difficult for clinicians to treat with current therapy options, which is why so many of them take opioids to manage their pain. Having been part of the neuromodulation field for so long, I am really impressed by this particular innovation and I look forward to its adoption in clinical practice.”
 
The FDA approval grants Mainstay the right to market ReActiv8 in the United States as an aid in the management of intractable chronic low back pain associated with multifidus muscle dysfunction, as evidenced by imaging or physiological testing in adults who have failed therapy, including pain medications and physical therapy, and are not candidates for spine surgery.
 
The FDA approval of ReActiv8 is primarily based on results from the ReActiv8-B clinical study, a pivotal 204-patient, international, multi-center, prospective, randomized, active sham-controlled, blinded trial with one-way cross-over, conducted under an Investigational Device Exemption (IDE) from FDA.
 
Based on the FDA approval, Mainstay is refining its commercial launch plans for ReActiv8 in the U.S., including the build out of the commercial team, inventory procurement and related matters, as well as evaluating the financial resources necessary to fund its planned activities. Mainstay intends to host an investor event later this year to provide an update on its commercial plans for ReActiv8.