Johan E.T. van Hylckama Vlieg is cofounder and CSO at Freya Biosciences, a series A-financed, clinical stage, microbial immunotherapy company in women’s health. 

He is an experienced R&D leader and executive with over 25 years of experience in building R&D programs and organizations in public and privately held biotech companies in both the US and Europe. 

His expertise spans microbe-host interactions, live biotherapeutics & pre- and probiotics and he is (co)author on more than 75 peer-reviewed publications and inventor on more than 15 patent applications. He has built and lead science & innovation teams covering compound synthesis and strain selection, preclinical screening and development & first-in-human testing. 

In addition to his scientific expertise, he brings C-level experience in manufacturing, fundraising & commercial development.