antiviral news

Shionogi said on September 3 that the US FDA has accepted for review its new drug application for the oral antiviral agent ensitrelvir, approved as Xocova in Japan, for the indication of post-exposure prophylaxis of COVID-19.

The findings underscore the importance of starting metformin soon after diagnosis, the authors say.

Ensitrelvir, also known as Xocova, is already approved for use in Japan.

Shionogi & Co., Ltd. (Head Office: Osaka, Japan; Chief Executive Officer: Isao Teshirogi, Ph.D.; hereafter “Shionogi”) announced the U.S. Food and Drug Administration (FDA) has accepted a New Drug Application (NDA) from Shionogi Inc., a New Jersey-based subsidiary of Shionogi, for ensitrelvir (Generic name: ensitrelvir fumaric acid, Code No.: S-217622).

Patients receiving nirmatrelvir/ritonavir experience a quicker resolution of COVID-19 symptoms and are less likely to have worsened symptoms than those receiving placebo, a recent study shows.

Pfizer says it is “confident” in the intellectual property for its billion-dollar Covid-19 pill Paxlovid.