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The Evaluation, Development, and Use of Recombinant Proteins for Endotoxin Testing

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Organizations worldwide pursuing animal-free options in regard to Bacterial Endotoxin Testing

In this webinar, you will learn about strategies used to develop and implement recombinant proteins for routine use in Quality Control (QC) laboratories. 

Sherri Hopple, a Technology and Market Development Manager at Charles River Laboratories (CRL), will present on the various Voice-of-Customer and regulatory considerations taken into account during CRL’s development of a synthetic recombinant.  In this presentation Sherri Hopple will discuss how recombinant reagents work and how they contribute to sustainability in QC testing.

Invitria is a leading developer and manufacturer of recombinant proteins and supplements used in biomanufacturing and final formulation of vaccines, biologic medicines, cell therapies, gene therapies and regenerative medicines.  The company understands the value and nuance of regulated synthetic proteins.  Ron Backman, Vice President of Quality at Invitria, will present on his approach to evaluating recombinant proteins for Bacterial Endotoxin Testing. The presentation will address how these proteins were assessed for performance and Invitria’s plans to incorporate recombinants for routine quality testing.


Presentation Date and Time

April 25th, 2024 @ 11:00 AM (central time zone)


Presenters – Bio


Sherri Hopple,

Technology and Market Development, Charles River Laboratories


Sherri is a subject matter expert in the Microbial Solutions group, focusing on Endosafe products and services for bacterial endotoxin testing. She has over 22 years of experience working as a QC microbiologist in cell therapy and non-sterile pharmaceutical manufacturing sites performing environmental monitoring, endotoxin testing, sterility testing, and method validation. She holds a bachelor’s degree in Biological Sciences from Alvernia College and earned her master’s in microbiology and Cell Science from The University of Florida.


Ron Backman,

Vice President Quality, Invitria, Inc.


Ron leads the Quality Assurance and Quality Control departments at InVitria, Inc. in Junction City, Kansas. He has over 29 years of biopharmaceutical Quality experience with increasing responsibilities throughout his career. He joined the company after managing Product Quality, Stability and Microbiology services at KBI Biopharma, a global contract development & manufacturing organization (CDMO) in Durham, North Carolina. Prior to KBI Biopharma he managed Quality Control and Support at Diosynth Biotechnology, another CDMO, in Morrisville, North Carolina. Ron started his career in the Quality department of Boehringer Ingelheim in St Joseph, Missouri. He received his Bachelor of Science in Biology from Kansas State University.




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April 25
11:00 am - 12:00 pm


Jon Kallay