Vaxart Announces FDA Clearance of IND Application for Oral COVID-19 Vaccine and Provides Update on COVID-19 Program

Recruitment for Phase 1 clinical study expected to start this month

Data from ongoing hamster challenge study expected in October

SOUTH SAN FRANCISCO, CA, USA I September 14, 2020 I Vaxart, Inc., a clinical-stage biotechnology company developing oral vaccines that are administered by tablet rather than by injection, today announced that the U.S. Food and Drug Administration (FDA) has completed its review of the Company’s Investigational New Drug (IND) application for its Phase 1 clinical trial evaluating its oral COVID-19 vaccine candidate. The Company also provided an update on its COVID-19 program.

“Our goal is to deliver the best, most elegant solution for conferring mass protection against COVID-19. Our oral tablet vaccine offers a much more attractive mode of administration than injectables and may confer superior protection against COVID-19 due to activation of mucosal immunity. Importantly, our room-temperature stable tablet is significantly easier and cheaper to store and distribute to the farthest corners of the US and the globe, as it does not require the very costly and complex refrigerated cold chain needed for injectable vaccines.,” said Andrei Floroiu, chief executive officer of Vaxart. “The IND clearance and the initiation of our Phase 1 clinical trial moves us a step closer to proving the superiority of our convenient oral COVID-19 solution in the clinic. We are thus excited to start enrollment for our Phase 1 this month.”

COVID-19 Program Updates:

  • IND Clearance for Phase 1 Clinical Trial Evaluating Oral COVID-19 Vaccine
    The Phase 1, open-label, dose-ranging study will be conducted in healthy adults ages 18 to 55 years old. The study’s primary objective is to examine the safety and reactogenicity of two-doses of the vaccine. Secondary objectives include immunogenicity, duration of immune response and occurrence of symptomatic COVID-19.
  • Data from Two Ongoing Animal Challenge Studies expected starting with mid-October
    Vaxart is conducting a SARS-CoV-2 challenge study in hamsters to provide efficacy data and insights into the optimal dose regimen of our vaccine candidate.  Results from this study, which began in early August, are expected mid-October.

In addition, and as previously disclosed, Vaxart is awaiting results from a non-human primate (NHP) challenge study that is testing its vaccine in a harmonized protocol as part of Operation Warp Speed. This preclinical program is being conducted in collaboration with the Biomedical Advanced Research and Development Authority (BARDA) and other entities working with Operation Warp Speed.

Sean Tucker Ph.D., chief scientific officer added, “In addition to our clinical program progress, we have a hamster challenge study underway with our COVID-19 vaccine candidate to assess the potential contribution of inducing mucosal immunity to overall efficacy. We are also awaiting the results from a non-human primate study. Both hamsters and monkeys are susceptible to SARS-CoV-2 infection and these models may be capable of providing a deeper understanding of the immune responses and correlates of protection elicited by our oral vaccine candidate.”

About Vaxart
Vaxart is a clinical-stage biotechnology company developing a range of oral recombinant vaccines based on its proprietary delivery platform. Vaxart vaccines are administered using convenient room temperature-stable tablets that can be stored and shipped without refrigeration and eliminate the risk of needle-stick injury. Vaxart has demonstrated that its proprietary tablet vaccine delivery platform is suitable to deliver recombinant vaccines, positioning the company to develop oral versions of currently marketed vaccines and to design recombinant vaccines for new indications. Its development programs currently include tablet vaccines designed to protect against coronavirus, norovirus, seasonal influenza and respiratory syncytial virus (RSV), as well as a therapeutic vaccine for human papillomavirus (HPV), Vaxart’s first immuno-oncology indication. Vaxart has filed broad domestic and international patents covering its proprietary technology and creations for oral vaccination using adenovirus and TLR3 agonists.

SOURCE: Vaxart

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