Pfizer has started stage one clinical trials of an oral pill that the company claims Covid-19 patients can take as soon as they start developing symptoms. If the trail is successful, this could be the first early intervention for Covid of its kind that could prevent the worsening of symptoms.
Pfizer is conducting the trial in the US for now and says that it has so far “demonstrated potent in-vitro antiviral activity” against the virus that causes Covid-19, “as well as activity against other coronaviruses, suggesting potential for use in the treatment of Covid-19 as well as potential use to address future coronavirus threats”.
In a statement, Mr Dolsten said: “Given the way that SARS-CoV-2 is mutating and the continued global impact of Covid-19, it appears likely that it will be critical to have access to therapeutic options both now and beyond the pandemic.”
Protease inhibitors, the company said, have been used effectively in treating other viral pathogens like HIV and Hepatitis C virus “both alone and in combination with other antivirals.”