In the Phase 2 PREVAIL trial in fibromyalgia-type Long COVID, bedtime TNX-102 SL resulted in a signal in fatigue, sleep and cognitive function
Phase 2, investigator-initiated OASIS trial is designed to examine the safety and efficacy of TNX-102 SL in treating Acute Stress Disorder (ASD) after motor vehicle collision
First patient in OASIS expected to enroll in second quarter 2024
In the poster presentation titled, “Effect of Bedtime Sublingual Cyclobenzaprine (TNX-102 SL) on Pain, Sleep, Fatigue, and Cognition in Fibromyalgia-Type Long COVID: Results of a Double-Blind Randomized Proof-of-Concept Phase 2 Study,” TNX-102 SL showed a robust effect size of 0.5 in improving fatigue and showed consistent activity across secondary measures of sleep quality, cognitive function, disability and Patient Global Impression of Change, but did not meet the primary endpoint of multi-site pain reduction at Week 14. Prior to the trial, Tonix had pre-specified that any effect size greater than 0.2 would be considered of interest for further study and, even given a substantial placebo response in pain magnitude measurements, key endpoints such as sleep quality diary (ES = 0.23), PROMIS Sleep Disturbance (ES = 0.32), PROMIS Fatigue (ES = 0.50), PROMIS Cognitive Function (ES = 0.21), the Insomnia Severity Index (ES = 0.24) and the Sheehan Disability Scale (ES = 0.26) all matched the criterion for further evaluation. TNX-102 SL was well tolerated with an adverse event profile comparable to prior studies and no new safety signals observed.
“These results further support the growing evidence that for most Long COVID patients, symptoms are at least partly driven by central nervous system mechanisms rather than persistent exposure to the SARS-CoV-2 virus,” said
In the poster presentation titled, “Optimizing Acute Stress Reaction (ASR) Interventions with TNX-102 SL* (Sublingual Cyclobenzaprine HCl) – The OASIS Trial: Sustaining Civilian Performance Post-Trauma by Reduction of ASR and Prevention of ASD/PTSD,” TNX-102 SL will be evaluated for the reduction in severity of acute stress reaction (ASR) and the frequency of acute stress disorder (ASD) and posttraumatic stress disorder (PTSD) in civilians after a motor vehicle collision. To reduce the persistence of ASR symptoms and the rate and severity of ASD and PTSD, it may be critical to intervene in the immediate aftermath of trauma. Currently, there are no medications available at or near the point of care to treat patients suffering from acute trauma and support long-term health. Previous trials of TNX-102 SL showed that it reduced military PTSD symptoms in as early as two weeks with favorable tolerability. The first participant for the OASIS trial is expected to enroll in the second quarter of 2024.
“Previous trials of TNX-102 SL in PTSD suggested activity on sleep and stress related symptoms in the first several weeks of treatment,”1,2 said
TNX-102 SL is a centrally acting, non-opioid medication, and, under the trade name Tonmya™, Tonix remains on track to submit an NDA to the
Tonix is a fully-integrated biopharmaceutical company focused on developing, licensing and commercializing therapeutics to treat and prevent human disease and alleviate suffering. Tonix’s development portfolio is focused on central nervous system (CNS) disorders. Tonix’s priority is to submit a New Drug Application (NDA) to the FDA in the second half of 2024 for Tonmya1, a product candidate for which two statistically significant Phase 3 studies have been completed for the management of fibromyalgia. TNX-102 SL is also being developed to treat acute stress reaction as well as fibromyalgia-type Long COVID. Tonix’s CNS portfolio includes TNX-1300 (cocaine esterase), a biologic designed to treat cocaine intoxication that has Breakthrough Therapy designation. Tonix’s immunology development portfolio consists of biologics to address organ transplant rejection, autoimmunity and cancer, including TNX-1500, which is a humanized monoclonal antibody targeting CD40-ligand (CD40L or CD154) being developed for the prevention of allograft rejection and for the treatment of autoimmune diseases. Tonix also has product candidates in development in the areas of rare disease and infectious disease. Tonix Medicines, our commercial subsidiary, markets Zembrace® SymTouch® (sumatriptan injection) 3 mg and Tosymra® (sumatriptan nasal spray) 10 mg for the treatment of acute migraine with or without aura in adults.
*Tonix’s product development candidates are investigational new drugs or biologics and have not been approved for any indication.
1Tonmya™ is conditionally accepted by the
Zembrace SymTouch and Tosymra are registered trademarks of Tonix Medicines. All other marks are property of their respective owners.
This press release and further information about Tonix can be found at www.tonixpharma.com.
- Sullivan
GM , et al. Randomized clinical trial of bedtime sublingual cyclobenzaprine (TNX-102 SL) in military-related PTSD and the role of sleep quality in treatment response. Psychiatry Res. 2021 Jul;301:113974. - Parmenter ME, et al. A phase 3, randomized, placebo-controlled, trial to evaluate the efficacy and safety of bedtime sublingual cyclobenzaprine (TNX-102 SL) in military-related posttraumatic stress disorder. Psychiatry Res. 2024 (
In Press ). https://doi.org/10.1016/j.psychres.2024.115764
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