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Tonix Pharmaceuticals Holding Corp., a clinical-stage biopharmaceutical company, announced the U.S. FDA has cleared the Investigational New Drug (IND) application to support a Phase 2 clinical trial with TNX-102 SL1 as a potential treatment for a subset of patients with Long COVID Syndrome (Long COVID) whose symptoms overlap with fibromyalgia. Long COVID is now known officially as Post-Acute Sequelae of COVID-19 (PASC2).
“We are excited to have received the FDA’s IND clearance to begin clinical trials of TNX-102 SL for the treatment of Long COVID,” said Seth Lederman, M.D., Chief Executive Officer of Tonix Pharmaceuticals. “Over 30% of people who recover from COVID-19 continue to experience a constellation of symptoms long past the time that they have recovered from acute COVID-19 illness3-4. The symptoms of Long COVID, which can include fatigue, multi-site pain, sleep disturbances, fevers, shortness of breath, cognitive impairment, gastrointestinal symptoms, anxiety, and depression, can persist for many months and can range from mild to incapacitating5. Our study will focus on testing TNX-102 SL in the treatment of patients with multi-site pain associated with Long COVID. This group of patients have symptoms that overlap with other chronic pain conditions, which as a group have been termed, ‘chronic overlapping pain conditions.’6,7 This type of pain syndrome is increasingly recognized as nociplastic pain,8 and the underlying mechanism as ‘central sensitization.’9 Fibromyalgia is considered one of the chronic overlapping pain conditions and our experience with TNX-102 SL in fibromyalgia is the motivation for undertaking the development of TNX-102 SL in patients with Long COVID whose symptoms overlap with fibromyalgia.”
About Tonix Pharmaceuticals Holding Corp.
Tonix is a clinical-stage biopharmaceutical company focused on discovering, licensing, acquiring and developing therapeutics and diagnostics to treat and prevent human disease and alleviate suffering. Tonix’s portfolio is composed of immunology, rare disease, infectious disease, and central nervous system (CNS) product candidates. Tonix’s immunology portfolio includes biologics to address organ transplant rejection, autoimmunity and cancer, including TNX-15001 which is a humanized monoclonal antibody targeting CD40-ligand being developed for the prevention of allograft and xenograft rejection and for the treatment of autoimmune diseases. A Phase 1 study of TNX-1500 is expected to be initiated in the second half of 2022. Tonix’s rare disease portfolio includes TNX-29002 for the treatment of Prader-Willi syndrome. TNX-2900 has been granted Orphan-Drug Designation by the FDA. Tonix’s infectious disease pipeline includes a vaccine in development to prevent smallpox and monkeypox called TNX-8013, next-generation vaccines to prevent COVID-19, and an antiviral to treat COVID-19. Tonix’s lead vaccine candidates for COVID-19 are TNX-1840 and TNX-18504, which are live virus vaccines based on Tonix’s recombinant pox vaccine (RPV) platform. TNX-35005 (sangivamycin, i.v. solution) is a small molecule antiviral drug to treat acute COVID-19 and is in the pre-IND stage of development. TNX-102 SL, (cyclobenzaprine HCl sublingual tablets), is a small molecule drug being developed to treat Long COVID that overlaps with fibromyalgia, a chronic post-COVID condition. Tonix expects to initiate a Phase 2 study in Long COVID in the second quarter of 2022. The Company’s CNS portfolio includes both small molecules and biologics to treat pain, neurologic, psychiatric and addiction conditions. Tonix’s lead CNS candidate, TNX-102 SL, is in mid-Phase 3 development for the management of fibromyalgia with a new Phase 3 study expected to start in the second quarter of 2022. Finally, TNX-13006 is a biologic designed to treat cocaine intoxication that is expected to start a Phase 2 trial in the second quarter of 2022.
