Leadership and scientific advisors

CEO

David Kolb, MBA

CEO, Founder and Chairman

Biotech company builder with backgrounds in investment banking, equity research, and life science company formation. Has worked extensively with Yale-affiliated ventures and early-stage therapeutic company development.

CSO

Demetrios Braddock, MD, PhD

CSO and Scientific Founder

Associate Professor of Pathology at Yale University and a leading expert in ENPP1 biology. Scientific founder of Inozyme and a key driver of Petragen’s translational platform.

CMO

Mia Geisinger, DDS, MS

Chief Medical Officer

Periodontology leader with national clinical and scientific leadership roles, including service within the American Academy of Periodontology and the ADA Science and Research Institute.

VP Chemistry

Paul McGuirk, PhD

Vice President, Chemistry and CMC

Veteran drug development executive with decades of industry experience, including leadership roles at Pfizer across screening, development, and product advancement.

Regulatory

Lawrence Friedhoff, MD, PhD

Regulatory Advisor

Senior pharmaceutical development and regulatory leader with experience across multiple companies and six NDA approvals, including major commercial products.

Science

Martha Somerman, DDS, PhD

Scientific Advisor

Former Director of the National Institute of Dental and Craniofacial Research and a recognized expert in oral connective tissue biology and periodontal disease.