Tonix Pharmaceuticals Announces Exclusive License of Potential Therapeutic or Preventative Fully Human and Murine Anti-SARS-CoV-2 Monoclonal Antibodies - Seite 2

To date, the formerly EUA-approved products were derived from the blood of COVID-convalescent patients or humanized mice^7-9. The fully human mAbs generated by Columbia University, TNX-3600, have been isolated using a proprietary system involving a human hybridoma fusion partner.

The Company believes that murine mAbs, such as TNX-4100, have the potential to generate high affinity antibodies that recognize different epitopes on the SARS-CoV-2 spike protein. This is because mice have a different repertoire of antibodies than humans and the technology for generating antibodies optimizes the selection of appropriate B cells by the timing of immunization, harvesting approach and screening platform.

Dr. Lederman added, “The potential therapeutic antibodies licensed from Columbia University leverage our expanding internal development and manufacturing capabilities for biologics. These fully human and murine mAbs and their humanized counterparts build on a base of knowledge from a distinct murine mAb platform in development, TNX-3800, from which we have licensed three humanized mAbs from Curia Global.”

About TNX-3600

TNX-3600 are fully human mAbs generated from SARS-CoV-2+ asymptomatic individuals or COVID-19 convalescent patients, on which Tonix is collaborating with Columbia University. Given the unpredictable trajectory of the SARS-CoV-2 virus and new variants, we seek to contribute to a broad set of mAbs that can be scaled up quickly and potentially combined with other mAbs for the treatment or prophylaxis of SARS-CoV-2 infection.

About TNX-4100

TNX-4100 are murine mAbs and their humanized counterparts generated from mice immunized with SARS-CoV-2 spike protein, on which Tonix is collaborating with Columbia University. Since mice have a different repertoire of antibodies than humans, murine mAbs have the potential for neutralizing a broader spectrum of SARS-CoV-2 variants than fully human mAbs.

Tonix Pharmaceuticals Holding Corp.^*

Tonix is a clinical-stage biopharmaceutical company focused on discovering, licensing, acquiring and developing therapeutics to treat and prevent human disease and alleviate suffering. Tonix’s portfolio is composed of central nervous system (CNS), rare disease, immunology and infectious disease product candidates. Tonix’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 (cyclobenzaprine HCl sublingual tablet), is in mid-Phase 3 development for the management of fibromyalgia with a new Phase 3 study launched in the second quarter of 2022 and interim data expected in the second quarter of 2023. TNX-102 SL is also being developed to treat Long COVID, a chronic post-acute COVID-19 condition. Tonix initiated a Phase 2 study in Long COVID in the third quarter of 2022. TNX-1300 (cocaine esterase) is a biologic designed to treat cocaine intoxication and has been granted Breakthrough Therapy designation by the FDA. A Phase 2 study of TNX-1300 is expected to be initiated in the second quarter of 2023. TNX-1900 (intranasal potentiated oxytocin), a small molecule in development for chronic migraine, is being studied in a potential pivotal Phase 2 study that initiated enrollment in the first quarter of 2023 and for which interim data is expected in the fourth quarter of 2023. TNX-601 ER (tianeptine hemioxalate extended-release tablets) is a once-daily formulation of tianeptine being developed as a potential treatment for major depressive disorder (MDD) with a Phase 2 study expected to be initiated in the first quarter of 2023. Tonix’s rare disease portfolio includes TNX-2900 (intranasal potentiated oxytocin) for the treatment of Prader-Willi syndrome. TNX-2900 has been granted Orphan Drug designation by the FDA. Tonix’s immunology portfolio includes 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 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 quarter of 2023. Tonix’s infectious disease pipeline includes a vaccine in development to prevent smallpox and monkeypox, TNX-801; a next-generation vaccine to prevent COVID-19, TNX-1850; a platform to make fully human monoclonal antibodies to treat COVID-19, TNX-3600; and humanized anti-SARS-CoV-2 monoclonal antibodies, TNX-3800; and a class of broad-spectrum small molecule oral antivirals, TNX-3900. TNX-801, Tonix’s vaccine in development to prevent smallpox and monkeypox, also serves as the live virus vaccine platform or recombinant pox vaccine (RPV) platform for other infectious diseases. A Phase 1 study of TNX-801 is expected to be initiated in the second half of 2023.