On Dec. 22, 2021, Cocrystal Pharma announced that in vitro studies demonstrate its oral and intranasal/pulmonary SARS-CoV-2 main protease inhibitors exhibit antiviral potency against the Omicron variant.

The Company earlier confirmed that its protease inhibitors demonstrated broad-spectrum antiviral activity against SARS-CoV-2 and all major previously identified variants including Delta, Alpha, Beta and Gamma. Cocrystal expects to initiate Phase 1 clinical studies with its COVID-19 intranasal/pulmonary protease inhibitor CDI-45205 and an oral COVID-19 protease inhibitor as rapidly as possible.

To confirm the antiviral activity of its protease inhibitors against SARS-CoV-2 Omicron variant, Cocrystal conducted an analysis of SARS-CoV-2 lineages covering all reported Omicron variant sequences including those from South Africa, Europe, Asia and North America, and identified one prevalent mutation in the SARS-CoV-2 main protease. Using its proprietary platform technology and assays, the Company further confirmed in vitro antiviral activity of its protease inhibitors against the Omicron variant.

CDI-45205 is one of three COVID-19 programs underway at Cocrystal. In the second COVID-19 program, the Company plans to begin a Phase 1 study also as rapidly as possible with an orally administered protease inhibitor. In the third COVID-19 program, Cocrystal is using its unique structure-based technology platform to discover replication inhibitors for oral administration.

Cocrystal Pharma is a clinical-stage biotechnology company discovering and developing novel antiviral therapeutics that target the replication process of influenza viruses, coronaviruses (including SARS-CoV-2), hepatitis C viruses and noroviruses. Cocrystal employs unique structure-based technologies and Nobel Prize-winning expertise to create first- and best-in-class antiviral drugs.