BioCentury
ARTICLE | Emerging Company Profile

ENA Respiratory: Boosting prophylactic immunity with a pan-viral nasal spray

By priming the host immune system, Australian biotech aims to stop upper respiratory viruses in their tracks

January 6, 2026 1:31 AM UTC

With a prophylactic, immune-priming nasal spray in the clinic, Melbourne-based ENA Respiratory believes it can reduce the global burden of airway infections through technology that is virus-agnostic, shelf-stable, and injection-free.

“It’s not for any specific virus — that’s the beauty of it,” ENA Respiratory Pty. Ltd. Managing Director and CEO Christophe Demaison told BioCentury...