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Robust Mammalian Process Development for Biologics

At Olon, we help biotech and pharma innovators transform promising biologics into robust, scalable processes ready for GMP manufacturing. With 25 years of experience, we bring the scientific depth and flexibility needed to accelerate your program with confidence.

GMP quality control sterility testing for sterile injectables

Process Development: The Critical Bridge to GMP Manufacturing

Process development is the stage where a molecule evolves from a research concept into a reproducible, scalable, and compliant process. Getting it right at this step ensures smoother clinical progress, reduced risk, and regulatory success.

At Olon , we integrate upstream and downstream expertise to design processes optimized for yield, quality, and regulatory alignment. Development begins in small-scale bioreactors (10 L and 40 L), progresses through pilot-scale runs (up to 250 L), and transitions seamlessly into GMP manufacturing at 1 000 L and 2 000 L.

Our teams work across a wide range of molecules — from monoclonal antibodies and Fc-fusion proteins to bispecifics and novel formats. By combining proven platform approaches with custom solutions, we de-risk development and give you confidence that your biologic can advance quickly and reliably into GMP production.

For 25 years, our team has successfully been developing mammalian processes for a wide variety of biotherapeutics

including monoclonal antibodies, engineered antibodies, immunocytokines, antibody fragments and Fc- fusion proteins

Expert team in downstream process development

Comprehensive Upstream Development

Our upstream programs are designed to maximize cell growth, productivity, and product quality:

    • CHO and HEK293 expression systems

    • Fed-batch process optimization for robust, scalable yields

    • Media and feed strategies adapted to clone-specific needs

    • Scale-up studies from bench to 250 L pilot reactors

    • Real-time monitoring of critical parameters (pH, DO, metabolites)

    • Early product quality attribute assessment to guide clone and process selection

Advanced Downstream Development

Purification is where yield and quality are safeguarded. Our downstream team develops processes that balance efficiency, recovery, and regulatory compliance:

    • Platform Protein A purification for monoclonal antibodies

    • Custom purification schemes for Fc-fusions, bispecifics, and novel biologics

    • Unit operations including chromatography, filtration, and TFF

    • Development of robust viral clearance steps aligned with ICH, EMA, and FDA guidelines

    • Scale-down models to predict GMP performance and ensure reproducibility

By tailoring purification strategies to each molecule, we secure quality and stability without compromising yield.

Fill and finish of viscous gels and complex biologics
Expert team in downstream process development

Seamless Transition into GMP Manufacturing

At Olon France, process development is fully aligned with GMP manufacturing requirements from the start.

    • Development processes mirror scale-down versions of GMP protocols

    • Direct alignment with GMP documentation, QA, and QC expectations

    • Proven track record of smooth tech transfer into 1 000–2 000 L mammalian GMP facilities

    • Cross-functional collaboration between development, QA, QC, and regulatory teams

This ensures your biologic moves from development to GMP with minimal risk and maximum speed.

Why Choose Olon for Mammalian Process Development?

25 years of expertise in developing processes for antibodies and complex biologics

Integrated upstream & downstream capabilities for balanced optimization

Seamless GMP transition from 10 L
to 2 000 L with aligned documentation

Comprehensive CDMO services – from cell line to fill & finish under one partner

Collaborative mindset – we work as an extension of your team with full transparency

Frequently Asked Questions (FAQ)

What is mammalian process development?

It is the optimization of upstream (cell culture) and downstream (purification) processes to ensure biologics can be manufactured at high yield, quality, and regulatory compliance.

Which cell systems does Olon support?

We specialize in CHO and HEK293 cell lines, with expertise across monoclonal antibodies, Fc-fusions, bispecifics, and novel proteins.

What development scales are available?

We support process development from 10 L and 40 L small-scale bioreactors through 250 L pilot runs, ensuring scalability into GMP manufacturing at 1 000–2 000 L.

How does Olon ensure regulatory compliance during development?

We use scale-down GMP models, align documentation with ICH, EMA, and FDA guidelines, and integrate QA/QC oversight from the beginning.

Can Olon provide end-to-end support beyond process development?

Yes. Olon offers cell line development, mammalian GMP manufacturing, and aseptic fill & finish, ensuring continuity across the entire development cycle.

What makes Olon different from other CDMOs?

Our 25 years of experience, combined with integrated capabilities and a collaborative, transparent approach, make us a trusted partner for biotech and pharma companies worldwide.

Expert team in downstream process development