TORONTO, ON and REHOVOT, ISRAEL--(Marketwired - January 19, 2017) - VAXIL BIO (TSX VENTURE: VXL), a biotech specializing in immunotherapy, announces today that it has received an important Notice of Allowance from the U.S. Patent and Trademark Office (USPTO) for a patent providing coverage over Vaxil's derived signal peptides from intracellular pathogens and their use in the vaccination against major infectious diseases. This marks the Company's first US patent for its infectious disease platform, known as MTbuVax™ and its family of signal peptide anti-infective vaccines.
MTbuVax™ has to date demonstrated superior immunity in Tuberculosis patient samples as well as in pre-clinical models. Furthermore, Vaxil's VaxHit™ platform technology has shown the potential to produce effective vaccines against other priority targets such as Malaria, HIV, Prion, Herpes, and more. Like Vaxil's lead orphan designated cancer immunotherapy Immucin™, MTbuVax™ is also derived from the Company's primary proprietary platform VaxHit™. The notice indicates the patentability of claims covering an immunogenic composition comprising tuberculosis derived peptides from four different Tuberculosis antigens, discovered with the company's proprietary VaxHit™ platform, as well as claims reciting methods of treating a pathogenic infection and methods for producing T-cells and anti-tuberculosis antibodies.
Rise of Infectious Diseases and Antibiotic Resistant Super-Bugs
So-called super-bugs, antibiotic resistant strains of infections, have recently made headlines after studies showed that such infections could potentially become the largest threat to global health. The Review on Microbial Resistance stated that "there could be profound health and macroeconomic consequences for the world, especially in emerging economies, if antimicrobial resistance is not tackled" and that super-bugs could even leapfrog cancer as the world's most potent killer as soon as 2050. Last month, the Financial Post mentioned that "Decades of antibiotic overuse have led to an increase in infections from bacteria that have developed a resistance to them, rendering the drugs that have conquered pneumonia, rheumatic fever and tuberculosis powerless."
Dr. Saeid Babaei, Vaxil's chairman added: "This is an exciting milestone for Vaxil, as we demonstrate the power of Company's platform, VaxHit™ to produce effective immunotherapy treatment and infectious diseases modalities in the much-needed areas of humandiseases. While we continue to focus on immuno-oncology and our orphan designated ImMucin™, we are very pleased to have developed and now patented a highly promising immunotherapy, MTbuVax™, in the rapidly growing field of infectious diseases."
Tuberculosis and Resistance to Treatment
According to the World Health Organization, "Tuberculosis is one of the top 10 causes of death worldwide." According to its report, an estimated 480,000 people developed multi-drug resistance to Tuberculosis, meaning they would not respond to available treatments. There is an acute need for better tools to prevent and treat Tuberculosis. Vaxil believes its MTbuVax™ could possess key advantages with potential for more effective prevention and broader protection, primarily due to its unique signal peptide based immunotherapy mechanism.
MTbuVax™ and Multi-Epitope Anti-Infective Vaccines
Vaxil's primary algorithm platform VaxHit™ has produced multiple peptide immunotherapy candidates derived from the signal peptides of several antigens from intracellular pathogens. The most advanced product under development, MTbuVax™ is a combination of several peptides derived from Mycobacterium tuberculosis, shown to elicit strong responses in samples from healthy and infected individuals. Moreover, the vaccine has a pan-HLA coverage, enabling vaccination of multiple ethnicities and in various geographies, thereby, strengthening the premise of creating a universal vaccine. In addition, the unique characteristics of these sequences may override common immune-escape mechanism used by these pathogens, and confer long-lasting and effective immunity.
"Low protection by the BCG vaccine and existence of drug-resistant strains require better anti-Mycobacterium tuberculosis vaccines with a broad, long-lasting, antigen-specific response. Using bioinformatics tools, we identified five 19- to 40-mer signal peptide domain vaccine candidates derived from M. tuberculosis antigens. Vaxil has demonstrated both in patient samples and in mice results stressing the immunogenic properties of the three top mixtures in inducing a strong and specific cellular response following a short regimen of active vaccination", wrote Dr. Riva Kovjazin when Vaxil first published its findings in a 2013 Clinical & Vaccine Immunology medical journal.
Like its other immunotherapy products derived from the VaxHit platform, Vaxil believes MTbuVax™ potentially contains the following advantages:
- Specificity: MTbuVax™ has higher antigen diversity, derived from four different markers (antigens) in the Tuberculosis pathogen.
- Efficacy: MTbuVax™ is able to induce a very strong and broad* immune response.
- Universal: MTbuVax™ is able to activate the immune system in every patient with no need for personalization/adaptation to their specific immune system.
- TAP: MTbuVax™ can cope with TB pathogen's attempt to hide from the immune system and develop resistance to treatment.
- Therapeutic: MTbuVax™, can potentially be used as a therapeutic vaccine to treat patients already infected with the bacteria.
Vaxil is a cutting edge Israeli-Canadian immuno-oncology biotech with its R&D based in the Weizmann Science Park and listed on the TSX-V. Vaxil specializes in the development of immunotherapy products for the treatment of cancer and infectious diseases by activating the patient's immune system. Vaxil immunotherapy products are based on the proprietary VaxHit™ platform. The first product developed through VaxHit™ is known as Immucin™, a clinical staged immunotherapy which was awarded Orphan Drug Designation by the FDA and EMA. It has already completed a successful Phase-I/II and will now be positioned toward a larger Phase-II. Recently, Vaxil utilized VaxHit™ in order to develop the first-ever signal peptide specific antibodies. Vaxil believes its recombinant antibodies have potential to assist in diagnosing and treating cancer. The Company is also developing an anti-infective vaccine platform known as MTbuVax™ containing a number of potential advantages in treating infection.
Website with full presentation and all medical articles freely downloadable: www.VaxilBio.com
Link to a film about the company's technology: https://www.youtube.com/watch?v=B5yFOjrKSxE
DISCLAIMER: Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. This news release contains forward-looking information, which involves known and unknown risks, uncertainties and other factors that may cause actual events to differ materially from current expectation. Important factors - including the availability of funds, the results of financing efforts, the results of exploration activities -- that could cause actual results to differ materially from the Company's expectations are disclosed in the Company's documents filed from time to time on SEDAR (see www.sedar.com). Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. The company disclaims any intention or obligation, except to the extent required by law, to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. This press release does not constitute an offer to sell or a solicitation of an offer to sell any of the securities described herein in the United States or elsewhere. These securities have not been, and will not be, registered in the United States Securities Act of 1933, as amended, or any state securities laws, and may not be offered or sold in the United States or to U.S. persons unless registered or exempt therefrom.
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