MNOV stock rose in pre-market trading on September 23, 2020, after the company announced its intranasal SARS-CoV-2 vaccine prototype for COVID-19, using BC-PIV technology, successfully induced systemic serum IgG and mucosal IgA neutralizing antibodies against the S1 antigen (Ag) of SARS-CoV-2 in mice.

MediciNova, Inc., a biopharmaceutical company traded on the NASDAQ Global Market (NASDAQ:MNOV) and the JASDAQ Market of the Tokyo Stock Exchange (Code Number: 4875), today announced that its intranasal SARS-CoV-2 vaccine prototype for COVID-19, using BC-PIV technology, successfully induced systemic serum IgG and mucosal IgA neutralizing antibodies against the S1 antigen (Ag) of SARS-CoV-2 in mice.

A mouse model study was conducted to assess systemic IgG and mucosal IgA antibody production against S1 Ag after intranasal vaccination with MediciNova’s BC-PIV SARS-CoV-2 vaccine prototype. We confirmed a high IgA antibody titer against S1 Ag in the nasal lavage fluid from mice given intranasal BC-PIV SARS-CoV-2 vaccine. We also confirmed that a high IgG antibody titer against S1 Ag was induced in mice serum.

Yuichi Iwaki, M.D., Ph.D., President and Chief Executive Officer of MediciNova, Inc., commented, “We are very encouraged that our intranasal BC-PIV SARS-CoV-2 vaccine induced high titers of systemic serum IgG and mucosal IgA neutralizing antibodies in a mouse model study. These successful results support the scientific and technical rationale of our intranasal vaccine in addition to similar success with BioComo’s BC-PIV RSV vaccine prototype. We look forward to reporting additional progress on our intranasal COVID-19 vaccine in the near future.”

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