Results from the CLARITY Study Show the NEUROMARK^® System Provides Safe and Effective Treatment for Patients with Chronic Rhinitis

GALWAY, Ireland, March 21, 2023 — Neurent Medical, a company pioneering innovative non-surgica interventions to treat chronic inflammatory sinonasal diseases, today announced three-month data from the CLARITY study, a prospective, single-arm, multicenter safety and efficacy study of its NEUROMARK^® System for patients with chronic rhinitis. These data, published in Laryngoscope Investigative Otolaryngology, show that patients receiving the NEUROMARK therapy demonstrated significant improvement in rhinorrhea and nasal congestion symptoms at 3 months.

Approximately one in four Americans have chronic rhinitis1, a condition that results in persistent congestion, rhinorrhea (runny nose), sneezing, and nasal itching caused by inflammation and swelling of the mucosal membrane in the nose. NEUROMARK’s unique device and intelligent technology platform enable otolaryngologists to treat chronic rhinitis with precision and control, which in turn allows for an enhanced patient experience from treatment through recovery.

The CLARITY Study enrolled thirty-six participants and all completed follow-ups at one and three months. Primary endpoints were device-related serious adverse events (SAEs) at 1 month and change from baseline in visual analog scale nasal symptom scale (VAS NSS) for rhinorrhea and nasal congestion at 3 months. Total Nasal Symptom Score (rTNSS) and mini Rhinoconjunctivitis Quality of Life Questionnaire (mini RQLQ) score were also evaluated.

The data demonstrated the following benefits of NEUROMARK’s posterior nasal nerve (PNN) ablation procedure at 3 months post procedure:

• The mean VAS NSS scores for rhinorrhea and nasal congestion significantly improved from baseline (both p<0.0001), achieving a mean percent change of 53% and 55%, respectively.
• Total rTNSS scores and all individual items demonstrated significant improvement (all p<0.001).
• Percent responder rate (≥30% reduction from baseline in total rTNSS) was 78%.
• Total mean mini RQLQ scores and all subdomains improved significantly (p<0.0001).
• 89% of participants reported a minimal clinically important difference (MCID) of ≥0.4 point improvement in the mini RQLQ score.
• No serious adverse events occurred during the study, and there were no reports of epistaxis or headaches.

“People living with chronic rhinitis have had limited options when traditional therapies fail. Other therapies on the market don’t always adequately address symptoms for every patient,” said Douglas D. Reh, MD, FARS, Otolaryngology Specialist at ENT Associates and the study’s principal investigator. “The data showed statistically significant and clinically meaningful improvement in symptoms and quality of life assessments at 3 months post NEUROMARK procedure.”

NEUROMARK is designed to gently apply controlled low-power radio frequency (RF) energy to target regions of the nasal cavity, disrupting the parasympathetic nerve signals that can trigger an inflammatory response. This unique system offers ENTs a novel and unique leaflet design to help deliver precision neurolysis of posterior nasal nerves, with the intelligence and flexibility to comfortably accommodate a range of anatomies.

“We’re encouraged by the three-month CLARITY data demonstrating the safety, efficacy and relief from chronic rhinitis symptoms that can be achieved with NEUROMARK,” said Neurent Medical CEO Brian Shields. “I’m grateful to Dr. Reh and each of the study’s investigators for adding to the growing body of clinical evidence supporting PNN for these patients.”

The NEUROMARK System has received U.S. Food and Drug Administration (FDA) clearance and Neurent Medical announced the limited market release of the system in February 2023.

About Neurent Medical
Neurent Medical is pioneering innovative treatments for chronic inflammatory sinonasal diseases by targeting and safely disrupting hyperactive autonomic nerves that drive underlying inflammation. Its proprietary NEUROMARK^® technology with a unique design and advanced algorithmic control, physicians can precisely target and safely disrupt multiple underlying nerve branches in a single procedure to alleviate Chronic Rhinitis symptoms and improve patient quality of life. The venture capital- backed company is headquartered in Galway, Ireland.

1. Settipane RA, Charnock DR. Epidemiology of rhinitis: allergic and nonallergic. Clin Allergy Immunol. 2007;19:23-34. PMID: 17153005.