Vaxxas Pty Ltd.

BRISBANE, Australia & CAMBRIDGE, MA, USA I October 28, 2024 I Vaxxas , a clinical-stage biotechnology company commercializing a novel high-density microarray patch (HD-MAP) vaccination platform , today announced that the United States National Institutes of Health (NIH) has granted the company a license to a next-generation vaccine antigen (DS2), designed for use in prophylactic vaccines against Respiratory Syncytial Virus (RSV). Vaxxas’ worldwide license from the NIH enables the company to create the first needle-free, room-temperature stable RSV vaccine to enter clinical studies. The next-generation DS2 RSV vaccine antigen licensed by Vaxxas was developed by scientists at the NIH’s Vaccine Research Center and the National Institute of Allergy and Infectious Diseases to prompt a more robust and durable immune response against RSV compared to the antigen used in currently approved vaccines (DS-Cav1). “ Published preclinical results show the potential immunogenic advantages of this next-generation antigen as the basis for an RSV vaccine that could offer more robust and durable protection against the virus, compared to vaccines already on the market,” David L. Hoey, President and CEO of Vaxxas, said. “These advantages, coupled with our needle-free technology’s potential to eliminate the need for refrigerated distribution and enable self-administration, could offer a vaccine that makes a significant impact on the way we protect populations against this serious respiratory infection in the future.” Vaxxas’ HD-MAP vaccine delivery platform is advancing toward commercialization, with five successful Phase I clinical trials involving more than 500 participants completed, including a second-generation COVID-19 vaccine candidate, a HD-MAP delivered flu vaccine showing greater immunogenicity than the approved injectable vaccine comparator, and a measles and rubella vaccine. With funding from the United States Biomedical Advanced Research and Development Authority (BARDA), the company is currently conducting its first U.S. IND-enabled Phase I clinical study for a pre-pandemic influenza vaccine involving 258 participants. Vaxxas plans to progress its needle-free HD-MAP/RSV vaccine to a Phase I clinical study after completing preclinical development of the product. About Respiratory Syncytial Virus (RSV) RSV is a common contagious virus affecting the lungs and breathing passages. The global burden of RSV is substantial, causing an estimated 33 million acute lower respiratory infection episodes per year, resulting in an estimated 3.6 million RSV-related hospitalizations and over 101,400 RSV-related deaths annually. RSV contributes substantially to morbidity and mortality burden globally in children aged 0-60 months, especially during the first six (6) months of life. Adults can be at increased risk for RSV disease due to comorbidities, immune compromised status, or advanced age. RSV can exacerbate conditions, including COPD, asthma, and chronic heart failure which can lead to severe outcomes, such as pneumonia, hospitalization, and death. The 2023 approval of the world’s first RSV vaccines in the US and Europe, GSK’s AREXVY and Pfizer’s ABRYSVO, was a significant milestone in addressing the grave unmet medical needs associated with RSV. About HD-MAP needle-free vaccines The Vaxxas HD-MAP is comprised of thousands of microscopic projections molded into a small patch. Each microprojection is coated with a small dose of vaccine in a dried formulation. When applied to the skin using a proprietary, easy to use applicator, the patch delivers the vaccine to the abundant immune cells that naturally reside immediately below the skin surface. HD-MAP vaccine delivery offers many potential benefits over more traditional ways of administering vaccines. For example, the dried form of the vaccine is more stable at higher temperatures than vaccines in liquid formulations, therefore potentially reducing the need for cold-chain storage and distribution. Vaxxas’ HD-MAPs have proven safe and tolerable in hundreds of trial participants to date , and have been shown to induce equal or greater immune responses to injected vaccines at lower doses. Compared with needle and syringe systems, HD-MAP vaccines are also much easier to administer and are likely to have greater acceptability by healthcare workers and patients/subjects. Ultimately, HD-MAPs could enable a future in which vaccine patches could be shipped directly to peoples’ homes, workplaces, and schools, avoiding the delay, inconvenience, and safety challenges associated with traditional needle-and-syringe vaccine scheduling and administration. About Vaxxas Vaxxas is a privately held biotechnology company focused on enhancing the performance of existing and next-generation vaccines with its proprietary HD-MAP. Vaxxas is targeting initial applications in infectious diseases and oncology. With success in several completed human clinical trials involving more than 500 participants; additional ongoing Phase I clinical studies for seasonal influenza and COVID-19; and other vaccine studies targeting pandemic influenza, funded by the United States Biomedical Advanced Research and Development Authority (BARDA), Vaxxas’ HD-MAP vaccine delivery platform is advancing toward commercialization. Vaxxas’ core technology was initially developed at The University of Queensland (UQ), and the company was established as a start-up in 2011 by UQ’s commercialization group UniQuest. The company was founded with the completion of an initial equity financing led by OneVentures Innovation Fund I with co-investors Brandon Capital Partners and US-based HealthCare Ventures, followed by a further financing led by OneVentures with UQ joining the most recent financing. OneVentures Innovation Fund I and Brandon BioCatalyst are supported by the Australian Government’s Innovation Investment Fund (IIF) program. The IIF is an Australian Government venture capital initiative that provides investment capital and managerial expertise through licensed venture capital fund managers to investee companies. Learn more at OneVentures and Brandon Capital . SOURCE: Vaxxas

CAMBRIDGE, MA, USA & BRISBANE, Australia I September 11, 2024 I Vaxxas today announced that it has initiated a multi-center Phase I clinical trial of a vaccine against pre-pandemic avian influenza strain H7N9, using the company’s high-density microarray patch (HD-MAP). Conducted in collaboration with Australian clinical sites, the multi-center trial is being led by Vaxxas with oversight by the Biomedical Advanced Research and Development Authority (BARDA), part of the Administration for Strategic Preparedness and Response within the U.S. Department of Health and Human Services, and is designed to expand foundational novel countermeasure capabilities in response to potential future pandemic threats to public health. Vaxxas’ HD-MAP platform delivers vaccines by applying a small patch briefly to the skin, avoiding many of the costs and complexities of needle and syringe vaccination. The HD-MAP enables the delivery of vaccine directly to the dense populations of skin-resident immune cells enhancing immune responses with potential dose-sparing benefits . The HD-MAP is easy to use, and vaccines can be stable at room temperature , avoiding or minimizing the need for cold-chain refrigeration and facilitating distribution of vaccine patches by mail and courier for potential self-administration. The clinical study includes 258 healthy participants between the ages of 18 and 50 years, making it the largest Phase I trial conducted-to-date by Vaxxas with its HD-MAP technology. The trial will compare the safety and immune response of participants to this H7N9 vaccine, when dosed with Vaxxas’ novel HD-MAP as well as through conventional needle and syringe. Initial results from the trial are expected in 2025 and will be provided to BARDA and published by Vaxxas and its clinical collaborators. “Global pandemic threats require the world’s health organizations to have better and more accessible vaccine delivery options. With potential benefits such as thermostability, ease of use, and patient acceptability, Vaxxas’ HD-MAP is designed to be rapidly and broadly deployed to accelerate vaccination uptake and rates,” David L. Hoey, President and CEO of Vaxxas, said. “Market research indicates that – given the choice – vaccination by HD-MAP is significantly preferred over conventional needle-and-syringe.” The influenza A virus circulates as numerous strains across the globe. The World Health Organization (WHO) states the H7N9 avian influenza strain is ‘of concern’ as most patients have become severely ill . This Australian-based Phase I clinical study is being conducted at three of the University of the Sunshine Coast’s clinical trial centers in Queensland and the Doherty Clinical Trial center in Melbourne, Victoria. About Avian influenza A (H7N9) This selected variant of avian influenza A (H7N9), or bird flu, is a subtype of influenza viruses that have been detected in birds, livestock, and people in the past. The World Health Organization (WHO) states the H7N9 avian influenza strain is ‘of concern’ as most patients have become severely ill . H7N9 has an observed Infection Fatality Rate (IFR) of 39%, meaning for every 100 infected people 39 people are likely to die and many are likely to become seriously sick. To date, more than 1,500 people have been infected by H7N9 worldwide since early 2013, according to WHO . About HD-MAP needle-free vaccines The Vaxxas high-density microarray patch ( HD-MAP ) is comprised of thousands of microscopic projections molded into a small patch. Each microprojection is ‘printed’ with a small dose of vaccine in a dried formulation. When applied to the skin, the patch delivers the vaccine to the abundant immune cells that naturally reside immediately below the skin surface. HD-MAP vaccine delivery offers many potential benefits over more traditional ways of administering vaccines. For example, the dried form of the vaccine is more stable at higher temperatures than vaccines in liquid formulations, therefore potentially reducing the need for cold-chain storage and distribution. Vaxxas’s HD-MAPs have proven safe and tolerable in hundreds of trial participants to date , and have been shown to induce equal or greater immune responses to injected vaccines at lower doses. Compared with needle and syringe systems, HD-MAP vaccines are also much easier to administer and are likely to have greater acceptability. Ultimately, HD-MAP patches could enable a future in which vaccine patches could be delivered directly to peoples’ homes, workplaces, and schools for self-administration, avoiding the delay and inconvenience of traditional needle-and-syringe vaccine scheduling and administration. In a pandemic situation, this distribution method could also avoid large groups of people having to congregate in central locations for vaccination, reducing the risk of further infections. About Vaxxas Vaxxas is a privately held biotechnology company focused on enhancing the performance of existing and next-generation vaccines with its proprietary high-density microarray patch (HD-MAP). Vaxxas is targeting initial applications in infectious diseases and oncology. With success in several completed human clinical trials involving more than 500 participants; additional ongoing Phase I clinical studies targeting pandemic influenza, funded by the Biomedical Advanced Research and Development Authority (BARDA), part of the Administration for Strategic Preparedness and Response within the U.S. Department of Health and Human Services, Vaxxas’ HD-MAP vaccine delivery platform is advancing toward commercialization. Vaxxas’ core technology was initially developed at The University of Queensland (UQ), and the company was established as a start-up in 2011 by UQ’s commercialization group UniQuest. The company was founded with the completion of an initial equity financing led by OneVentures Innovation Fund I with co-investors Brandon Capital Partners and US-based HealthCare Ventures, followed by a further financing led by OneVentures with UQ joining the most recent financing. OneVentures Innovation Fund I and Brandon BioCatalyst are supported by the Australian Government’s Innovation Investment Fund (IIF) program. The IIF is an Australian Government venture capital initiative that provides investment capital and managerial expertise through licensed venture capital fund managers to investee companies. Learn more at One-Ventures and Brandon Capital . CAUTION The Vaxxas HD-MAP delivered vaccines are under investigation and available only for investigational uses. They are not available anywhere in the world for sale or purchase. As such, Vaxxas makes no claim that the vaccines are reliable, durable, dependable, safe, or effective, and makes no claim that it is superior to any other vaccine or vaccine delivery technology. SOURCE: Vaxxas

研究人员正在开发一种易于使用的无针疫苗贴片，以保护人们免受可能致命的蚊媒寨卡病毒的侵害。  近期，由昆士兰大学开发、Vaxxas商业化的高密度微阵列贴片（HD-MAP）原型经由阿德莱德大学开发成为疫苗，并证实在小鼠中引发了对寨卡病毒的有效免疫反应。昆士兰大学校友兼Vaxxas研究员Danushka Wijesundara博士表示，寨卡病毒对太平洋、东南亚、印度、非洲以及南美洲和中美洲的人们构成广泛威胁。Wijesundara博士说：“我们可以通过HD-MAP贴片改变抵御寨卡病毒的方式，因为它是一种有效、无痛、使用简单且易于储存的疫苗接种方法。”“HD-MAP通过数千个微小的突起将疫苗输送到皮肤表面下的免疫细胞。在我们的临床前试验中，该疫苗对一种名为NS1的特定蛋白质提供了针对活寨卡病毒的快速保护，这种蛋白质对于病毒的生存至关重要。疫苗贴片引发的T细胞反应比针头或注射器疫苗高出约270%。”寨卡病毒通常只会引起症状轻微的疾病，但怀孕期间感染可能导致流产、死产或生出先天畸形的胎儿。2016年2月，寨卡病毒在拉丁美洲40个国家蔓延，6个月内造成超过150万例确诊或疑似病例，世界卫生组织宣布将该病毒纳入国际关注的突发公共卫生事件。阿德莱德大学副教授Branka Grubor-Bauk表示，有限的全球监测显示寨卡病毒在至少89个国家和地区活跃，但目前尚无获得许可的疫苗。Grubor-Bauk博士说：“HD-MAP这种疫苗是独特的，因为它针对的是病毒内部的蛋白质，而不是病毒外部的蛋白质，这意味着如果接种者还感染了其他密切相关的病毒（如：登革热），该疫苗不会导致症状加重。”昆士兰大学化学与分子生物科学学院的David Muller博士表示，微阵列贴片疫苗的好处不止对寨卡病毒有效。Muller博士说：“由于贴片针对的蛋白质在黄病毒家族的复制中发挥着核心作用，因此它也具备抵御其他黄病毒疾病，如登革热和日本脑炎的潜在效果。”“HD-MAP贴片的一个核心优势是疫苗在高温下的稳定性。我们发现该贴片在40摄氏度下储存长达4个星期后仍保有效力，这提升了疫苗在冷藏困难的低收入和中等收入国家中的覆盖范围。”该项研究受到国家健康与医学研究中心（NHMRC）和医院研究基金会团体奖学金的资助。参考文献：Danushka K. Wijesundara, Arthur Yeow, Christopher L.D. McMillan,et al. Superior efficacy of a skin-applied microprojection device for delivering a novel Zika DNA vaccine. Molecular Therapy - Nucleic Acids, 2023; 34: 102056 DOI: 10.1016/j.omtn.2023.102056责编|探索君排版|探索君End往期精选围观王晓红教授团队：绘制单次冷冻囊胚移植成功的女性植入期外周血microRNA动态表达谱，开拓领域创新研究热文维生素B12在细胞重编程与组织再生中发挥关键作用！热文语言胎教是否有效？研究人员以脑电图监测揭示答案热文Let-7家族miRNA或为癌症潜在免疫治疗靶点热文一项最新发现或可用于阿尔茨海默病药物开发点击“阅读原文”，了解更多~