MELBOURNE, Australia<\/span>, March 1, 2022<\/span> \/PRNewswire\/ — In a major development for its VIRALEZE\u2122 antiviral nasal spray, Starpharma (ASX: SPL) today announced that its potent antiviral agent, SPL7013, achieved the maximum possible virucidal effect against the highly transmissible Omicron variant of SARS-CoV-2.<\/p>\n

This new data is consistent with previously reported data conducted at The Scripps Research Institute<\/span> in the United States<\/span>, where SPL7013 has now been shown to be highly active against all nine SARS-CoV-2 variants tested \u2013 including more than 99.5% reduction of infectious virus in the Omicron variant.<\/p>\n

Internationally recognised virologist, Professor Philippe Gallay<\/span>, at The Scripps Research Institute<\/span>, said SPL7013 performed even better in blocking the more infectious Omicron variant of SARS-CoV-2 than early variants such as Delta. <\/p>\n

"This effect appears to be due to the mechanism of action of SPL7013 that involves interaction with multiple regions of the virus spike protein," said Professor Gallay. "Mutations in the highly infectious virus variants appear to have introduced even more potential binding sites for SPL7013 to interact with. <\/i><\/p>\n

"Omicron has over 30 mutations in the spike protein that have made it extremely highly transmissible in the community. To suppress this transmission, we need to have additional tools that can block SARS-CoV-2 infection of the nose, and SPL7013 could play an important role."<\/i><\/p>\n

In the antiviral assays, SPL7013 was approximately 30 times more potent than iota-carrageenan against the Omicron variant, which is currently in multiple marketed nasal sprays, and 70 times more potent than heparin, which is currently being contemplated as a nasal spray.<\/p>\n

Starpharma CEO Dr Jackie Fairley<\/span> commented, "Starpharma is pleased to see that SPL7013 is virucidal and achieved more than 99.5% reduction of infectious virus in the Omicron variant."<\/i><\/p>\n

"SPL7013 has now demonstrated impressive performance against all five ‘Variants of Concern’ tested, including Delta, Alpha, Beta, Gamma, and now also Omicron. The high level of activity against Omicron is entirely consistent with previous data for SPL7013, which has shown antiviral and virucidal activity in multiple viruses. This new data further illustrates SPL7013’s breadth of activity and the potential real-world benefits of VIRALEZE\u2122."<\/i><\/p>\n

The data on the effect of SPL7013 against other SARS-CoV-2 variants was recently presented at the major international scientific meeting, Conference on Retroviruses and Opportunistic Infections (CROI) 2022 by Professor Gallay.^{[1]<\/sup><\/p>\n}

VIRALEZE\u2122 is registered in more than 30 countries, including in Europe<\/span>, India<\/span>, Vietnam<\/span>, Saudi Arabia<\/span> and New Zealand<\/span>, and the nasal spray is also available in these regions and others online through viraleze.co.<\/p>\n

In Vietnam<\/span>, VIRALEZE\u2122 is available through a number of major pharmacy chains that collectively have more than 1,300 stores. <\/p>\n

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^{[1]<\/sup> Gallay P, Luscombe C, Stauffer W, et al. Effect of astodrimer sodium against SARS-CoV-2 variants (a, \u00df, ?, d, ?) in vitro. [CROI Abstract 478]. Abstracts From CROI 2022 Conference on Retroviruses and Opportunistic Infections. CROI 2022 Abstract eBook. 2022;478.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n}
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