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Charles Evans

Senior Vice President of Pharmaceutical Development

Dr. Charles Evans serves as the Senior Vice President of Pharmaceutical Development at MedPharm, where he has dedicated over 15 years to advancing the company’s formulation development strategies. His extensive expertise spans the successful creation of commercial products across various delivery systems, including topical, inhalation, and transdermal formulations. Dr. Evans was instrumental in developing MedPharm’s proprietary MedSpray® technology, which is currently licensed to enhance client product performance. He earned his Ph.D. from the University of Hertfordshire, focusing his research on a novel dynamic spray formulation for treating Athlete’s foot.

Jon Lenn

Chief Scientific Officer

Dr. Jon Lenn is a seasoned life sciences executive with over 20 years of experience driving pharmaceutical innovation. As Chief Scientific Officer at MedPharm, he leads global research and development, overseeing the advancement of complex topical and transdermal drug products. Based in Durham, North Carolina, Jon has played a pivotal role in MedPharm’s growth since founding its US operations in 2015. Under his leadership, the company has pioneered cutting-edge biological models, novel test systems, and automation-driven drug development for challenging delivery routes, including dermal, respiratory, ophthalmic, ungual, and other mucosal applications.

 

Bill Humphries

Chief Executive Officer

Bill Humphries has served as the Chief Executive Officer of MedPharm since January 2025. Previously, Mr. Humphries led Alcami Corporation, a contract development and manufacturing organization, serving as its Chief Executive Officer and member of its board of directors from June 2023 to January 2025. From May 2021 to May 2023, Mr. Humphries served as the Chief Executive Officer of Isosceles Pharmaceuticals Inc., a biotechnology company. From 2018 to December 2020, Mr. Humphries served as President of Ortho Dermatologics, the dermatology division of Bausch Health Companies, Inc., and previously served as its Executive Vice President, Company Group Chairman for Dermatology and OraPharma from 2017 to 2018. From 2012 to 2016, he served as President and Chief Executive Officer of the North American business of Merz, Inc., an affiliate of Merz Pharma Group, a specialty healthcare company.