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Brad Johnson, PhD

Head of Purification Development at Patheon


Brad Johnson currently oversees downstream process development activities at the St. Louis site and acts as technical lead for early and late stage client programs.  As head of Purification Development for Patheon in St. Louis, Brad led a team of scientists in the development and transfer of Phase I through Phase III GMP purification processes for monoclonal antibodies, recombinant proteins and enzyme drug products.  He brings over 16 years of experience in downstream process development and scale up operations for early and late stage biologic drug products.  He has worked in leadership roles at large biotech companies such as Genzyme and Biogen Idec, as well as several smaller biotech companies.  Brad earned his bachelor of science from Brigham Young University and his PhD in Microbiology and Molecular Genetics from the University of Texas.

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