Drugging the Undruggable: The Journey to Sionna Therapeutics

Apr. 02, 2025

TD Cowen senior biotech analyst Ritu Baral speaks with CEO of Sionna Therapeutics, Mike Cloonan, at the TD Cowen 45th Annual Health Care Conference to discuss his journey becoming a start-up biotech CEO and leading the company through a successful IPO in turbulent markets. Cloonan's path to CEO started with early career roles and skill development throughout all functions of a company – commercial, R&D, and SG&A. Joining Sionna with prior experience at large and mid-cap companies, Cloonan emphasizes how his nimbleness and ability to prioritize goals has helped him successfully lead a small start-up through a smooth IPO. Cloonan discusses the ability of Sionna Therapeutics to "drug the undruggable" through targeting NBD1 as a main reason he decided to lead the company, while also highlighting the importance of leading with intention to identify the unmet need of patients.

This podcast was originally recorded on March 3, 2025.


Portrait of Ritu Baral

Managing Director, Health Care – Biotechnology Research Analyst, TD Cowen

Portrait of Ritu Baral


Managing Director, Health Care – Biotechnology Research Analyst, TD Cowen

Portrait of Ritu Baral


Managing Director, Health Care – Biotechnology Research Analyst, TD Cowen

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