Open Orphan plc announced that hVIVO Limited has signed a £7.3 million influenza human challenge study ("Study") contract with a leading biotechnology company to test its antiviral product using the hVIVO Influenza Human Challenge Study Model. The randomised, double-blinded, placebo-controlled study will test and assess the antiviral prophylactic and post-inoculation treatment activity of the antiviral in healthy adult volunteers enrolled through the Company's specialist, tech-enabled volunteer recruitment arm,FluCamp. The Study will be conducted by hVIVO's team of medics at its quarantine facilities in London and is expected to commence next year.

Revenue from the contract is expected to be recognised across FY23 and FY24.