Tag: Tonix Pharmaceuticals

Research News and Market Data on TNXP

March 26, 2026 7:00am EDT Download as PDF

Intranasal oxytocin blocks the release of calcitonin gene-related peptide (CGRP) in animal models and is the core technology of TNX-1900 for craniofacial pain conditions, including migraine and trigeminal neuralgia

TNX-1900 will be studied in the trigeminal neurovascular reactivity model, by measuring the forehead skin blood flow response to capsaicin and electrical stimulation by Laser Speckle Contrast Imaging (LSCI)

Oxytocin treatment affects a pathway distinct from the recently available CGRP migraine treatment drug class

BERKELEY HEIGHTS, N.J., March 26, 2026 (GLOBE NEWSWIRE) — Tonix Pharmaceuticals Holding Corp. (Nasdaq: TNXP), a fully integrated, commercial biotechnology company, today announced that the first participant has been dosed in a Phase 1 investigator-initiated study to evaluate the effect of TNX-1900 (intranasal potentiated oxytocin) on trigeminal nerve-mediated vasodilation of the forehead using capsaicin as well as electrical stimulation, a model for trigeminal neurovascular reactivity, in healthy female human volunteers. Dr. Antoinette Maassen van den Brink, Professor of Neurovascular Pharmacology, Erasmus University Medical Center, is serving as principal investigator and sponsor for the study in a collaborative research agreement with Tonix.

In animal studies, intranasal oxytocin has been shown to bind to oxytocin receptors in the trigeminal ganglion, blocking the release of calcitonin gene-related peptide (CGRP), a potent vasodilator critically involved in the pathogenesis of migraine.¹ Dr. Maassen van den Brink has previously found a CGRP inhibitor and a triptan to inhibit the forehead dermal blood flow response to capsaicin in migraineurs and healthy volunteers, respectively.^2,3

“We are excited to collaborate with Professor Maassen van den Brink on this proof-of-concept study investigating the potential for TNX-1900 for treating migraine, craniofacial pain, and other related conditions,” said Seth Lederman, MD, Chief Executive Officer of Tonix Pharmaceuticals. “While there are several CGRP inhibitors approved for the treatment of migraine, TNX-1900’s oxytocin treatment affects a distinct pathway that could address unmet needs. The results of the new study will guide future development of this potential non-opioid treatment for migraine and other craniofacial pain conditions.”

As part of the preliminary work in support of this study, Dr. Maassen van den Brink’s team recently validated a newer detection method for dermal blood flow known as Laser Speckle Contrast Imaging (LSCI) in the trigeminal neurovascular reactivity model.⁴

“We are excited to be using LSCI in this study of TNX-1900, which adds to our established model by providing real-time and higher resolution dermal blood flow measurements, compared to Laser Doppler Perfusion Imaging used in earlier studies,” said Dr. Maassen van den Brink. “Oxytocin represents a potential new therapeutic option, targeting a pathway in migraine and craniofacial pain that is distinct from both the triptan and CGRP inhibitor migraine treatment drug classes.”

About Migraine

Migraine is a neurovascular condition that typically manifests in a throbbing moderate to severe headache which lasts at least four hours, often on one side of the head and aggravated by routine physical activity. It can also be accompanied by nausea, vomiting, visual disturbances, and sensitivity to bright light and loud noises.⁵ Epidemiological studies indicate that globally, approximately 1.2 billion individuals suffer from migraines annually.⁶ In the U.S., approximately 39 million Americans suffer from migraines, and among these individuals, approximately four million experience chronic migraines (15 or more headache days per month, at least eight of which are migraines).⁶

About TNX-1900

TNX-1900 (intranasal potentiated oxytocin) is a proprietary formulation of oxytocin in development as a candidate for the treatment of migraine and craniofacial pain. TNX-1900 is a drug-device combination product, based on an intranasal actuator device that delivers oxytocin into the nasal cavity. Oxytocin is a naturally occurring human peptide hormone that also acts as a neurotransmitter in the brain. Oxytocin has no recognized addiction potential. Oxytocin when delivered via the nasal route, concentrates in the trigeminal system⁷ resulting in binding of oxytocin to receptors on neurons in the trigeminal system, inhibiting the release of CGRP and transmission of pain signals returning from the site of CGRP release.¹ Blocking CGRP release is a distinct mechanism compared with CGRP receptor antagonist and anti-CGRP antibody drugs, which block the binding of CGRP to its receptor, or bind to the peptide CGRP. The addition of magnesium to the oxytocin formulation in TNX-1900 enhances oxytocin receptor binding⁸ as well as having an inhibitory effect on trigeminal neurons and resultant craniofacial analgesic effects, as demonstrated in animal models.⁹ Intranasal oxytocin has been shown to be well tolerated in several clinical trials in both adults and children.¹⁰ Targeted nasal delivery results in low systemic exposure and lower risk of non-nervous system, off-target effects, which could potentially occur with systemic CGRP receptor antagonists and anti-CGRP (receptor) antibodies.¹¹ For example, CGRP has roles in dilating blood vessels in response to ischemia, including in the heart. The Company believes nasally targeted delivery of oxytocin could translate into selective blockade of CGRP release from neurons in the trigeminal ganglion and not throughout the body, which could be a potential safety advantage over systemic CGRP inhibition. This mechanism is being investigated in a Phase 1 study to evaluate the effect of TNX-1900 on trigeminal nerve-mediated vasodilation of the forehead model for craniofacial pain. In addition, daily dosing is more rapidly reversible, in contrast to monthly or quarterly dosing, as is the case with anti-CGRP antibodies, giving physicians and their patients greater control. In addition to craniofacial pain conditions, TNX-1900 is being developed for treatment of binge eating disorder, adolescent obesity, bone health in pediatric autism and arginine-vasopressin deficiency. Tonix also has a license with the University of Geneva to use TNX-1900 for the treatment of insulin resistance and related conditions.

Citations

¹Tzabazis A, et al. Oxytocin receptor: Expression in the trigeminal nociceptive system and potential role in the treatment of headache disorders. Cephalalgia. 2016. 36(10):943-50.
²de Vries Lentsch S, et al. CGRP-mediated trigeminovascular reactivity in migraine patients treated with erenumab. J Neurol Neurosurg Psychiatry. 2022 Aug;93(8):911-912.
³Ibrahimi K, et al. A human trigeminovascular biomarker for antimigraine drugs: A randomized double-blind, placebo-controlled, crossover trial with sumatriptan. Cephalalgia. 2017 Jan;37(1):94-98.
⁴van Lohuizen et al. 2025. Trigeminovascular activity using a forehead dermal blood flow model: preliminary results of a validation study. J Headache and Pain 26 (Suppl 2): 138.
⁵The International Classification of Headache Disorders, 3rd Edition. Cephalalgia. 2018. 38(1):1-211.
⁶Burch et al. Migraine: Epidemiology, Burden, and Comorbidity. Neurol Clin 37 (2019):631–649.
⁷Yeomans DC, et al. Nasal oxytocin for the treatment of psychiatric disorders and pain: achieving meaningful brain concentrations. Transl Psychiatry. 2021. 11(1):388.
⁸Antoni FA and Chadio SE. Essential role of magnesium in oxytocin-receptor affinity and ligand specificity. Biochem J. 1989. 257(2):611-4.
⁹Cai Q, et al. Systematic review and meta-analysis of reported adverse events of long-term intranasal oxytocin treatment for autism spectrum disorder. Psychiatry Clin Neurosci. 2018. 72(3):140-151.
¹⁰Yeomans, DC et al. 2017. US patent US2017368095.
¹¹MaassenVanDenBrink A, et al. Wiping out CGRP: potential cardiovascular risks. Trends Pharmacol Sci. 2016. 37(9):779-788.

Tonix Pharmaceuticals Holding Corp.

Tonix Pharmaceuticals* is a fully-integrated, commercial-stage biotechnology company focused on central nervous system (CNS) and immunology treatments in areas of high unmet medical need. TONMYA^® (cyclobenzaprine HCl sublingual tablets 2.8 mg), is the first new treatment for fibromyalgia in adults in more than 15 years. Tonix’s CNS commercial infrastructure supports its marketed products, including its acute migraine products, Zembrace^® Symtouch^® (sumatriptan injection 3 mg) and Tosymra^® (sumatriptan nasal spray 10 mg). Tonix is investigating TONMYA^® in Phase 2 clinical trials to evaluate its potential in major depressive disorder and acute stress disorder/acute stress reaction. In addition, the Company’s CNS portfolio includes TNX-2900 (intranasal oxytocin), which is Phase 2 ready for the treatment of Prader-Willi syndrome, a rare disease. Tonix is also advancing a pipeline of immunology programs, including long-acting human monoclonal antibody TNX-4800 for Lyme disease prophylaxis, and TNX-1500, a third-generation CD40 ligand inhibitor for the prevention of kidney transplant rejection. To learn more, visit www.tonixpharma.com and follow the Company on LinkedIn and X.

*Tonix’s product development candidates are investigational new drugs or biologics; their efficacy and safety have not been established and have not been approved for any indication.

Zembrace SymTouch and Tosymra are registered trademarks of Tonix Medicines. TONMYA is a registered trademark of Tonix Pharma Limited. All other marks are property of their respective owners.

Forward Looking Statements

Certain statements in this press release are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995 including those relating to the completion of the offering, the satisfaction of customary closing conditions, the intended use of proceeds from the offering and other statements that are predictive in nature. These statements may be identified by the use of forward-looking words such as “anticipate,” “believe,” “forecast,” “estimate,” “expect,” and “intend,” among others. There are a number of factors that could cause actual events to differ materially from those indicated by such forward-looking statements. These factors include, but are not limited to, risks related to the failure to successfully launch and commercialize TONMYA and any of our approved products; risks related to the failure to obtain FDA clearances or approvals and noncompliance with FDA regulations; risks related to the timing and progress of clinical development of our product candidates; our need for additional financing; uncertainties of patent protection and litigation; uncertainties of government or third party payor reimbursement; limited research and development efforts and dependence upon third parties; and substantial competition. As with any pharmaceutical under development, there are significant risks in the development, regulatory approval and commercialization of new products. Tonix does not undertake an obligation to update or revise any forward-looking statement. Investors should read the risk factors set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, as filed with the SEC on March 12, 2026, and periodic reports filed with the SEC on or after the date thereof. Tonix does not undertake an obligation to update or revise any forward-looking statement. All of Tonix’s forward-looking statements are expressly qualified by all such risk factors and other cautionary statements. The information set forth herein speaks only as of the date thereof.

Investor Contacts
Jessica Morris
Tonix Pharmaceuticals
investor.relations@tonixpharma.com
(862) 799-8599

Brian Korb
astr partners
(917) 653-5122
brian.korb@astrpartners.com

Media Contacts
Deborah Elson
Tonix Pharmaceuticals
deborah.elson@tonixpharmaceuticals.com

Ray Jordan
Putnam Insights
ray@putnaminsights.com

Source: Tonix Pharmaceuticals Holding Corp.

Research News and Market Data on TNXP

March 09, 2026 4:30pm EDTDownload as PDF

TONMYA (cyclobenzaprine HCl sublingual tablets) for the treatment of fibromyalgia in adults, was commercially launched in November 2025

Treatment with TONMYA provided statistically significant pain reduction in two Phase 3 trials and was generally well tolerated

BERKELEY HEIGHTS, N.J., March 09, 2026 (GLOBE NEWSWIRE) — Tonix Pharmaceuticals Holding Corp. (Nasdaq: TNXP) (“Tonix” or the “Company”), a fully integrated, commercial biotechnology company, presented data on TONMYA^TM (cyclobenzaprine HCl sublingual tablets), at the 2026 American Academy of Pain Medicine (AAPM) PainConnect Annual Meeting, in Salt Lake City, Utah.

“The data presented at the AAPM PainConnect Annual Meeting support TONMYA’s role as a safe and effective non-opioid analgesic for daily use at bedtime in fibromyalgia,^1,2” said Gregory Sullivan, M.D., Chief Medical Officer of Tonix Pharmaceuticals. “TONMYA is designed to target nonrestorative sleep and is a first-in-class tertiary amine tricyclic for long-term use. As the first approved therapy for fibromyalgia in over 15 years, TONMYA is an alternative to three currently FDA-approved medicines, which are limited by side effects, adherence, and high discontinuation rates. TONMYA’s unique sublingual formulation enables cyclobenzaprine to bypass first-pass hepatic metabolism. Relative to off-label oral swallowed cyclobenzaprine, TONMYA treatment results in reduced formation of the active, persistent metabolite norcyclobenzaprine, which we believe interferes with the durability of cyclobenzaprine’s treatment effect in fibromyalgia with long term dosing. Oral cyclobenzaprine failed in development because it provided only short-term (one month) benefit³, which is not sufficient for the treatment of fibromyalgia, a chronic condition that requires a sustained treatment effect.”

Data presented at the AAPM PainConnect Annual Meeting are from the Phase 3 RESILIENT trial, a 14-week randomized, double-blind, placebo-controlled study that assessed the safety and efficacy of TONMYA in 457 patients who met the 2016 American College of Rheumatology (ACR) diagnostic criteria for fibromyalgia. In addition to showing a statistically significant reduction in mean daily pain at 14 weeks, TONMYA treatment resulted in an increase over placebo in the number of individuals with a 30% reduction in daily pain, which is considered a clinically meaningful response. The most common adverse events were mild and self-limited oral cavity reactions that uncommonly led to study withdrawal. TONMYA was approved by the FDA in August 2025 in part based on the Phase 3 RESILIENT trial results and was commercially launched in the U.S. in November 2025.

A copy of the Company’s poster presentation, “Treatment with TNX-102 SL Produces Clinically Meaningful Improvements in Patient-Centered Outcomes in Fibromyalgia,” is available under the Presentations tab of the Tonix website at https://ir.tonixpharma.com/presentations.

Citations

¹Carette S, et al. Arthritis Rheum. 1994. 37(1):32-40. doi: 10.1002/art.1780370106.
²Lederman S, et al. Arthritis Care Res (Hoboken). 2023. 75(11):2359-2368. doi: 10.1002/acr.25142.
³Lederman S, et al. Pain Med. 2026. 27(1):86-94. doi: 10.1093/pm/pnaf089.

About Fibromyalgia

Fibromyalgia is a chronic pain disorder that is understood to result from amplified sensory and pain signaling within the central nervous system. Fibromyalgia afflicts an estimated 6-12 million adults in the U.S., approximately 90% of whom are women. Symptoms of fibromyalgia include chronic widespread pain, nonrestorative sleep, fatigue, and morning stiffness. Other associated symptoms include cognitive dysfunction and mood disturbances, including anxiety and depression. Individuals suffering from fibromyalgia struggle with their daily activities, have impaired quality of life, and frequently are disabled. Physicians and patients report common dissatisfaction with currently marketed products.

About TONMYA™ (cyclobenzaprine HCl sublingual tablets)

TONMYA (cyclobenzaprine HCl sublingual tablets) is a patented sublingual tablet formulation of cyclobenzaprine hydrochloride which provides rapid transmucosal absorption and reduced production of a long half-life active metabolite, norcyclobenzaprine, due to bypass of first-pass hepatic metabolism. As a multifunctional agent with potent binding and antagonist activities at the 5-HT_2A serotonergic, α₁-adrenergic, H₁-histaminergic, and M₁-muscarinic receptors, TONMYA was approved on August 15, 2025, by the FDA for the treatment of fibromyalgia in adults. TONMYA is the first new prescription medicine approved for fibromyalgia in more than 15 years. TONMYA was investigated as TNX-102 SL. TNX-102 SL is also being developed to treat acute stress reaction (ASR)/acute stress disorder (ASD), and major depressive disorder (MDD). The United States Patent and Trademark Office (USPTO) issued United States Patent No. 9636408 in May 2017, Patent No. 9956188 in May 2018, Patent No. 10117936 in November 2018, Patent No. 10,357,465 in July 2019, and Patent No. 10736859 in August 2020. The Protectic™ protective eutectic and Angstro-Technology™ formulation claimed in the patent are important elements of Tonix’s proprietary TONMYA composition. These patents are expected to provide TONMYA with U.S. market exclusivity until 2034/2035.

Tonix Pharmaceuticals Holding Corp.

Tonix Pharmaceuticals* is a fully-integrated, commercial-stage biotechnology company focused on central nervous system (CNS) and immunology treatments in areas of high unmet medical need. TONMYA^TM (cyclobenzaprine HCl sublingual tablets 2.8 mg), the Company’s recently approved flagship medicine, is the first new treatment for fibromyalgia in more than 15 years. Tonix’s CNS commercial infrastructure supports its marketed products, including its acute migraine products, Zembrace® SymTouch® and Tosymra®. Tonix is maximizing the science behind TONMYA in Phase 2 clinical trials to evaluate its potential in major depressive disorder and acute stress disorder. In addition, the company’s CNS portfolio includes TNX-2900, which is Phase 2 ready for the treatment of Prader-Willi syndrome, a rare disease. Tonix is also advancing a pipeline of immunology programs, including monoclonal antibody TNX-4800 for Lyme disease prophylaxis and TNX-1500, a third-generation CD40 ligand inhibitor for the prevention of kidney transplant rejection. To learn more, visit www.tonixpharma.com and follow the Company on LinkedIn and X.

*Tonix’s product development candidates are investigational new drugs or biologics; their efficacy and safety have not been established and have not been approved for any indication.

Tonmya, Zembrace SymTouch and Tosymra are registered trademarks of Tonix Medicines.

Forward Looking Statements

Certain statements in this press release are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995 including those relating to the completion of the offering, the satisfaction of customary closing conditions, the intended use of proceeds from the offering and other statements that are predictive in nature. These statements may be identified by the use of forward-looking words such as “anticipate,” “believe,” “forecast,” “estimate,” “expect,” and “intend,” among others. These forward-looking statements are based on Tonix’s current expectations and actual results could differ materially as a result of a number of factors, including the ability of the Company to satisfy the conditions to the closing of the offering and the timing thereof, as well as those described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC on March 18, 2025, and periodic reports filed with the SEC on or after the date thereof. Tonix does not undertake an obligation to update or revise any forward-looking statement. All of Tonix’s forward-looking statements are expressly qualified by all such risk factors and other cautionary statements. The information set forth herein speaks only as of the date thereof.

Investor Contacts
Jessica Morris
Tonix Pharmaceuticals
investor.relations@tonixpharma.com
(862) 799-8599

Brian Korb
astr partners
(917) 653-5122
brian.korb@astrpartners.com  

Media Contacts
Deborah Elson
Tonix Pharmaceuticals 
deborah.elson@tonixpharma.com

Ray Jordan
Putnam Insights
ray@putnaminsights.com  

INDICATION

TONMYA is indicated for the treatment of fibromyalgia in adults.

CONTRAINDICATIONS

TONMYA is contraindicated: In patients with hypersensitivity to cyclobenzaprine or any inactive ingredient in TONMYA. Hypersensitivity reactions may manifest as an anaphylactic reaction, urticaria, facial and/or tongue swelling, or pruritus. Discontinue TONMYA if a hypersensitivity reaction is suspected. With concomitant use of monoamine oxidase (MAO) inhibitors or within 14 days after discontinuation of an MAO inhibitor. Hyperpyretic crisis seizures and deaths have occurred in patients who received cyclobenzaprine (or structurally similar tricyclic antidepressants) concomitantly with MAO inhibitors drugs. During the acute recovery phase of myocardial infarction, and in patients with arrhythmias, heart block or conduction disturbances, or congestive heart failure. In patients with hyperthyroidism.

WARNINGS AND PRECAUTIONS

Embryofetal toxicity: Based on animal data, TONMYA may cause neural tube defects when used two weeks prior to conception and during the first trimester of pregnancy. Advise females of reproductive potential of the potential risk and to use effective contraception during treatment and for two weeks after the final dose. Perform a pregnancy test prior to initiation of treatment with TONMYA to exclude use of TONMYA during the first trimester of pregnancy.

Serotonin syndrome: Concomitant use of TONMYA with selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants, tramadol, bupropion, meperidine, verapamil, or MAO inhibitors increases the risk of serotonin syndrome, a potentially life-threatening condition. Serotonin syndrome symptoms may include mental status changes, autonomic instability, neuromuscular abnormalities, and/or gastrointestinal symptoms. Treatment with TONMYA and any concomitant serotonergic agent should be discontinued immediately if serotonin syndrome symptoms occur and supportive symptomatic treatment should be initiated. If concomitant treatment with TONMYA and other serotonergic drugs is clinically warranted, careful observation is advised, particularly during treatment initiation or dosage increases.

Tricyclic antidepressant-like adverse reactions: Cyclobenzaprine is structurally related to TCAs. TCAs have been reported to produce arrhythmias, sinus tachycardia, prolongation of the conduction time leading to myocardial infarction and stroke. If clinically significant central nervous system (CNS) symptoms develop, consider discontinuation of TONMYA. Caution should be used when TCAs are given to patients with a history of seizure disorder, because TCAs may lower the seizure threshold. Patients with a history of seizures should be monitored during TCA use to identify recurrence of seizures or an increase in the frequency of seizures.

Atropine-like effects: Use with caution in patients with a history of urinary retention, angle-closure glaucoma, increased intraocular pressure, and in patients taking anticholinergic drugs.

CNS depression and risk of operating a motor vehicle or hazardous machinery: TONMYA monotherapy may cause CNS depression. Concomitant use of TONMYA with alcohol, barbiturates, or other CNS depressants may increase the risk of CNS depression. Advise patients not to operate a motor vehicle or dangerous machinery until they are reasonably certain that TONMYA therapy will not adversely affect their ability to engage in such activities. Oral mucosal adverse reactions: In clinical studies with TONMYA, oral mucosal adverse reactions occurred more frequently in patients treated with TONMYA compared to placebo. Advise patients to moisten the mouth with sips of water before administration of TONMYA to reduce the risk of oral sensory changes (hypoesthesia). Consider discontinuation of TONMYA if severe reactions occur.

ADVERSE REACTIONS

The most common adverse reactions (incidence ≥2% and at a higher incidence in TONMYA-treated patients compared to placebo-treated patients) were oral hypoesthesia, oral discomfort, abnormal product taste, somnolence, oral paresthesia, oral pain, fatigue, dry mouth, and aphthous ulcer.

DRUG INTERACTIONS

MAO inhibitors: Life-threatening interactions may occur. Other serotonergic drugs: Serotonin syndrome has been reported. CNS depressants: CNS depressant effects of alcohol, barbiturates, and other CNS depressants may be enhanced. Tramadol: Seizure risk may be enhanced. Guanethidine or other similar acting drugs: The antihypertensive action of these drugs may be blocked.

USE IN SPECIFIC POPULATIONS

Pregnancy: Based on animal data, TONMYA may cause fetal harm when administered to a pregnant woman. The limited amount of available observational data on oral cyclobenzaprine use in pregnancy is of insufficient quality to inform a TONMYA-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Advise pregnant women about the potential risk to the fetus with maternal exposure to TONMYA and to avoid use of TONMYA two weeks prior to conception and through the first trimester of pregnancy. Report pregnancies to the Tonix Medicines, Inc., adverse-event reporting line at 1-888-869-7633 (1-888-TNXPMED). Lactation: A small number of published cases report the transfer of cyclobenzaprine into human milk in low amounts, but these data cannot be confirmed. There are no data on the effects of cyclobenzaprine on a breastfed infant, or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for TONMYA and any potential adverse effects on the breastfed child from TONMYA or from the underlying maternal condition. Pediatric use: The safety and effectiveness of TONMYA have not been established. Geriatric patients: Of the total number of TONMYA-treated patients in the clinical trials in adult patients with fibromyalgia, none were 65 years of age and older. Clinical trials of TONMYA did not include sufficient numbers of patients 65 years of age and older to determine whether they respond differently from younger adult patients. Hepatic impairment: The recommended dosage of TONMYA in patients with mild hepatic impairment (HI) (Child Pugh A) is 2.8 mg once daily at bedtime, lower than the recommended dosage in patients with normal hepatic function. The use of TONMYA is not recommended in patients with moderate HI (Child Pugh B) or severe HI (Child Pugh C). Cyclobenzaprine exposure (AUC) was increased in patients with mild HI and moderate HI compared to subjects with normal hepatic function, which may increase the risk of TONMYA-associated adverse reactions.

Please see additional safety information in the full Prescribing Information.

To report suspected adverse reactions, contact Tonix Medicines, Inc. at 1-888-869-7633, or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Source: Tonix Pharmaceuticals Holding Corp.

Released March 9, 2026

Research News and Market Data on TNXP

January 30, 2026 7:00am EST Download as PDF

TONMYA demonstrated significant reduction in fibromyalgia pain compared with placebo in the Phase 3 RESILIENT study

Unique sublingual formulation designed for bedtime dosing bypasses first-pass metabolism, optimizing parent-drug exposure during sleep and decreasing levels of the persistent active metabolite

Treatment was well tolerated with minimal effects on weight or blood pressure

CHATHAM, N.J., Jan. 30, 2026 (GLOBE NEWSWIRE) — Tonix Pharmaceuticals Holding Corp. (Nasdaq: TNXP) (“Tonix” or the “Company”), a fully integrated, commercial biotechnology company, presented data on TONMYA™, which was investigated as TNX-102 SL, at the 2026 Non-Opioid Pain Therapeutics Summit, on January 29, 2026, in Boston, Massachusetts. 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.

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. Tonix’s rare disease portfolio includes TNX-2900, intranasal oxytocin potentiated with magnesium, in development for Prader-Willi syndrome and expected to start a potential pivotal Phase 2 study in 2026. Tonix’s infectious disease portfolio includes TNX-801, a vaccine in development for mpox and smallpox, as well as TNX-4800, a Phase 2- ready long-acting humanized monoclonal antibody for the seasonal prevention of Lyme disease. Finally, TNX-4200 for which Tonix has a contract with the U.S. DoD’s Defense Threat Reduction Agency (DTRA) for up to $34 million over five years, is a small molecule broad-spectrum antiviral agent targeting CD45 for the prevention or treatment of high lethality infections to improve the medical readiness of military personnel in biological threat environments. Tonix owns and operates a state-of-the art infectious disease research facility in Frederick, Md.

* Tonix’s product development candidates are investigational new drugs or biologics; their efficacy and safety have not been established and have not been approved for any indication.

Forward Looking Statements
Certain statements in this press release are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995 including those relating to the completion of the offering, the satisfaction of customary closing conditions, the intended use of proceeds from the offering and other statements that are predictive in nature. These statements may be identified by the use of forward-looking words such as “anticipate,” “believe,” “forecast,” “estimate,” “expect,” and “intend,” among others. These forward-looking statements are based on Tonix’s current expectations and actual results could differ materially as a result of a number of factors, including the ability of the Company to satisfy the conditions to the closing of the offering and the timing thereof, as well as those described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC on March 18, 2025, and periodic reports filed with the SEC on or after the date thereof. Tonix does not undertake an obligation to update or revise any forward-looking statement. All of Tonix’s forward-looking statements are expressly qualified by all such risk factors and other cautionary statements. The information set forth herein speaks only as of the date thereof.

Investor Contacts
Jessica Morris
Tonix Pharmaceuticals 
investor.relations@tonixpharma.com 
(862) 799-8599 

Brian Korb 
astr partners 
(917) 653-5122 
brian.korb@astrpartners.com 

Media Contacts
Ray Jordan 
Putnam Insights 
ray@putnaminsights.com 

INDICATION
TONMYA is indicated for the treatment of fibromyalgia in adults.

CONTRAINDICATIONS
TONMYA is contraindicated:
In patients with hypersensitivity to cyclobenzaprine or any inactive ingredient in TONMYA. Hypersensitivity reactions may manifest as an anaphylactic reaction, urticaria, facial and/or tongue swelling, or pruritus. Discontinue TONMYA if a hypersensitivity reaction is suspected. With concomitant use of monoamine oxidase (MAO) inhibitors or within 14 days after discontinuation of an MAO inhibitor. Hyperpyretic crisis seizures and deaths have occurred in patients who received cyclobenzaprine (or structurally similar tricyclic antidepressants) concomitantly with MAO inhibitors drugs.

During the acute recovery phase of myocardial infarction, and in patients with arrhythmias, heart block or conduction disturbances, or congestive heart failure. In patients with hyperthyroidism.

WARNINGS AND PRECAUTIONS
Embryofetal toxicity: Based on animal data, TONMYA may cause neural tube defects when used two weeks prior to conception and during the first trimester of pregnancy. Advise females of reproductive potential of the potential risk and to use effective contraception during treatment and for two weeks after the final dose. Perform a pregnancy test prior to initiation of treatment with TONMYA to exclude use of TONMYA during the first trimester of pregnancy.

Serotonin syndrome: Concomitant use of TONMYA with selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants, tramadol, bupropion, meperidine, verapamil, or MAO inhibitors increases the risk of serotonin syndrome, a potentially life-threatening condition. Serotonin syndrome symptoms may include mental status changes, autonomic instability, neuromuscular abnormalities, and/or gastrointestinal symptoms. Treatment with TONMYA and any concomitant serotonergic agent should be discontinued immediately if serotonin syndrome symptoms occur and supportive symptomatic treatment should be initiated. If concomitant treatment with TONMYA and other serotonergic drugs is clinically warranted, careful observation is advised, particularly during treatment initiation or dosage increases.

Tricyclic antidepressant-like adverse reactions: Cyclobenzaprine is structurally related to TCAs. TCAs have been reported to produce arrhythmias, sinus tachycardia, prolongation of the conduction time leading to myocardial infarction and stroke. If clinically significant central nervous system (CNS) symptoms develop, consider discontinuation of TONMYA. Caution should be used when TCAs are given to patients with a history of seizure disorder, because TCAs may lower the seizure threshold. Patients with a history of seizures should be monitored during TCA use to identify recurrence of seizures or an increase in the frequency of seizures.

Atropine-like effects: Use with caution in patients with a history of urinary retention, angle-closure glaucoma, increased intraocular pressure, and in patients taking anticholinergic drugs.

CNS depression and risk of operating a motor vehicle or hazardous machinery: TONMYA monotherapy may cause CNS depression. Concomitant use of TONMYA with alcohol, barbiturates, or other CNS depressants may increase the risk of CNS depression. Advise patients not to operate a motor vehicle or dangerous machinery until they are reasonably certain that TONMYA therapy will not adversely affect their ability to engage in such activities. Oral mucosal adverse reactions: In clinical studies with TONMYA, oral mucosal adverse reactions occurred more frequently in patients treated with TONMYA compared to placebo. Advise patients to moisten the mouth with sips of water before administration of TONMYA to reduce the risk of oral sensory changes (hypoesthesia). Consider discontinuation of TONMYA if severe reactions occur.

ADVERSE REACTIONS
The most common adverse reactions (incidence ≥2% and at a higher incidence in TONMYA-treated patients compared to placebo-treated patients) were oral hypoesthesia, oral discomfort, abnormal product taste, somnolence, oral paresthesia, oral pain, fatigue, dry mouth, and aphthous ulcer.

DRUG INTERACTIONS

MAO inhibitors: Life-threatening interactions may occur.

Other serotonergic drugs: Serotonin syndrome has been reported.

CNS depressants: CNS depressant effects of alcohol, barbiturates, and other CNS depressants may be enhanced.

Tramadol: Seizure risk may be enhanced.

Guanethidine or other similar acting drugs: The antihypertensive action of these drugs may be blocked.

USE IN SPECIFIC POPULATIONS
Pregnancy: Based on animal data, TONMYA may cause fetal harm when administered to a pregnant woman. The limited amount of available observational data on oral cyclobenzaprine use in pregnancy is of insufficient quality to inform a TONMYA-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Advise pregnant women about the potential risk to the fetus with maternal exposure to TONMYA and to avoid use of TONMYA two weeks prior to conception and through the first trimester of pregnancy. Report pregnancies to the Tonix Medicines, Inc., adverse-event reporting line at 1-888-869-7633 (1-888-TNXPMED).

Lactation: A small number of published cases report the transfer of cyclobenzaprine into human milk in low amounts, but these data cannot be confirmed. There are no data on the effects of cyclobenzaprine on a breastfed infant, or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for TONMYA and any potential adverse effects on the breastfed child from TONMYA or from the underlying maternal condition.

Pediatric use: The safety and effectiveness of TONMYA have not been established.

Geriatric patients: Of the total number of TONMYA-treated patients in the clinical trials in adult patients with fibromyalgia, none were 65 years of age and older. Clinical trials of TONMYA did not include sufficient numbers of patients 65 years of age and older to determine whether they respond differently from younger adult patients.

Hepatic impairment: The recommended dosage of TONMYA in patients with mild hepatic impairment (HI) (Child Pugh A) is 2.8 mg once daily at bedtime, lower than the recommended dosage in patients with normal hepatic function. The use of TONMYA is not recommended in patients with moderate HI (Child Pugh B) or severe HI (Child Pugh C). Cyclobenzaprine exposure (AUC) was increased in patients with mild HI and moderate HI compared to subjects with normal hepatic function, which may increase the risk of TONMYA-associated adverse reactions.

Please see additional safety information in the full Prescribing Information.
To report suspected adverse reactions, contact Tonix Medicines, Inc. at 1-888-869-7633, or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Source: Tonix Pharmaceuticals Holding Corp.

Released January 30, 2026