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Craig Claussen's avatar

Excellent piece. I’ve had people say to my face “we don’t know what’s in them.” Which is when I get to say, hi, let me first explain what “CMC Regulatory Affairs” is, and then point out that it’s my actual profession. Sigh.

Dr. Andrea Love's avatar

I spent like 2 hours talking about host cell protein residual testing today 🫠 and I don’t even work in CMC 😂 it is SO frustrating— and yet they are all selling unregulated supplements and unapproved “health tests”

Robot Bender's avatar

I'm just hoping that after RFK Jr. gets going, vaccines will still be available. 🙄 Thank you for the explanation, Dr. Love.

Craig Claussen's avatar

Yep, I work in biologics, so I’ve seen plenty of HCP data! I always wonder if the phrase “host cell proteins” would sound vaguely sinister to some people.

Naime Jezzeny's avatar

This is all amazing, the work you do is relentless and exhausting I’m sure, thanks for making me so much smarter.🙏

Mark Bobrow's avatar

Very well done and thorough. If one is not in the business of producing vaccines, therapeutics or diagnostics (even academic scientists), they don't realize that QMS/GMP processes require an exhaustive level of control. One minor tweak - B cells differentiate to plasma cells to produce antibodies.

Dr. Andrea Love's avatar

Yup, I discuss B cell differentiation and affinity maturation and class switching in the more comprehensive article I wrote previously — kept the verbiage simple here, but plasma cells are a type of B cell if we want to get semantic 🙃