Meissa Announces Preclinical Data on Intranasal COVID-19 Vaccine Showing Protection from SARS-CoV-2 Challenge after a Single Dose

Excerpt from the Press Release:

REDWOOD CITY, Calif.–(BUSINESS WIRE)–Meissa Vaccines (“Meissa”), a biotechnology company developing vaccines to prevent serious viral respiratory infections, announced today the release of preclinical data in nonhuman primates (NHPs) of the company’s intranasal recombinant live attenuated COVID-19 vaccine (MV-014-212). The data demonstrate that a single adjuvant-free dose of MV-014-212 provided equivalent protection against SARS-CoV-2 challenge compared to reported efficacy in NHP models of currently authorized vaccines. Furthermore, the data show that MV-014-212 stimulates mucosal (nasal IgA) antibodies in the upper respiratory tract, the major infection route for SARS-CoV-2, and systemic (serum neutralizing and binding IgG) antibodies. Meissa also announced that the company has enrolled and dosed SARS-CoV-2 seronegative and seropositive adult participants in all dosage groups of a Phase 1 clinical trial of MV-014-212 (ClinicalTrials.gov identifier: NCT04798001). Interim analysis of the trial data is expected later this year.

“Many scientists and public health officials think SARS-CoV-2 is becoming endemic, and we believe Meissa’s intranasal COVID-19 vaccine can contribute to global control of the disease and virus spread,” said Martin Moore, Ph.D., CEO and Cofounder of Meissa Vaccines. “The data suggest a single, adjuvant-free, needle-free intranasal dose of MV-014-212 may provide broad immunity to protect against infection by SARS-CoV-2 and its variants.”

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