Ensitrelvir - Shionogi
Alternative Names: Ensitrelvir fumarate - Shionogi; Ensitrelvir fumaric acid - Shionogi; S-217622; SARS-CoV2 3C-like protease inhibitor - Shionogi; XocovaLatest Information Update: 18 Sep 2025
At a glance
- Originator Hokkaido University; Shionogi
- Developer Juniper Therapeutics; Shionogi
- Class Amines; Antivirals; Chlorine compounds; Fluorobenzenes; Indazoles; Ketones; Small molecules; Triazines; Triazoles
- Mechanism of Action Coronavirus 3C-like proteinase inhibitors
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Orphan Drug Status
Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.
- New Molecular Entity Yes
Highest Development Phases
- Marketed COVID 2019 infections
- Clinical Phase Unknown Post acute COVID 19 syndrome