A copy of the Company's presentation, titled "TNX-102 SL (Sublingual Cyclobenzaprine HCl): a Centrally Acting Non-Opioid Analgesic for the Treatment of Fibromyalgia," is available under the Scientific Presentations tab of the Tonix website at www.tonixpharma.com.
"Fibromyalgia is a chronic pain disorder affecting more than 10 million adults in the U.S., with existing treatments often limited by tolerability and side effects," said Seth Lederman, M.D., Chief Executive Officer of Tonix Pharmaceuticals. "The data presented at the Non-Opioid Pain Therapeutics Summit by our Chief Medical Officer, Gregory Sullivan, M.D. highlight TONMYA'S role as a centrally-acting, differentiated non-opioid treatment.
TONMYA'S unique sublingual formulation is designed for bedtime administration and to bypass first-pass metabolism, resulting in a pharmacokinetic profile that favors parent-drug exposure during sleep while limiting daytime exposure to the active metabolite. Since fibromyalgia patients are commonly prescribed opioids off-label, there is a clear need for effective non-opioid alternatives."
The data presented at the Summit come from RESILIENT, a 14-week randomized, double-blind, placebo-controlled Phase 3 trial at 34 U.S. sites, with 456 intent-to-treat participants who met the 2016 American College of Rheumatology criteria for fibromyalgia. Participants received TONMYA or placebo administered sublingually at bedtime.
Treatment with TONMYA resulted in a statistically significant reduction in weekly average pain scores at Week 14 (p<0.0001) versus placebo, with an effect size of 0.38. The study also demonstrated significant improvements in key secondary endpoints, including sleep disturbance (p<0.001), fatigue (p<0.001), and the Symptoms (p<0.001) and Function (p=0.001) domains of the Fibromyalgia Impact Questionnaire-Revised (p<0.001 for both).
TONMYA was well tolerated, with minimal impact on weight and blood pressure, and a rate of adverse event-related discontinuations of 6.1% on TONMYA vs. 3.5% on placebo. The most common adverse events were mild and self-limited oral cavity reactions that rarely led to study withdrawal.
"TONMYA’S sublingual formulation largely bypasses first-pass hepatic metabolism, which reduces formation of norcyclobenzaprine, the persistent active metabolite that we believe otherwise interferes with the duration of the treatment effect," said Dr. Sullivan.
"This results in a distinct pharmacokinetic profile compared to oral cyclobenzaprine, with greater relative bioavailability of the parent drug during sleep and reduced active metabolite exposure during daytime. Bedtime sublingual administration is also designed to target the non-restorative sleep that is central to fibromyalgia pathophysiology, translating to broad-spectrum activity across the core symptoms of fibromyalgia, including pain, sleep disturbance, and fatigue, with a favorable tolerability profile that may reduce the need for polypharmacy."
TONMYA was approved on August 15, 2025, by the FDA for the treatment of fibromyalgia in adults. It is the first new prescription medicine approved for fibromyalgia in more than 15 years.
About Tonix Pharmaceuticals Holding Corp.
Tonix is a fully-integrated biotechnology company with marketed products and a pipeline of development candidates. Tonix markets FDA-approved TONMYA™, a first-in-class, non-opioid analgesic medicine for the treatment of fibromyalgia, a chronic pain condition that affects millions of adults. TONMYA is the first new prescription medicine approved by the FDA for fibromyalgia in more than 15 years. TONMYA was investigated as TNX-102 SL. Tonix also markets two treatments for acute migraine in adults: Zembrace® SymTouch® (sumatriptan injection) and Tosymra® (sumatriptan nasal spray). Tonix’s development portfolio* is focused on central nervous system (CNS) disorders, immunology, immuno-oncology, rare disease and infectious disease. TNX-102 SL is being developed to treat acute stress reaction and acute stress disorder under an Investigator-Initiated IND at the University of North Carolina in the OASIS study funded by the U.S. Department of Defense (DoD). TNX-102 SL is also in development for major depressive disorder. Tonix’s immunology development portfolio consists of biologics to address organ transplant rejection, autoimmunity and cancer, including TNX-1500, which is a Phase 2- ready Fc-modified humanized monoclonal antibody targeting CD40-ligand (CD40L or CD154) being developed for the prevention of allograft rejection and for the treatment of autoimmune diseases.
For more information please visit, www.tonis-pharmaceuticals-corp.com
