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Biologics CDMO — Cell Line, Process & Analytical Development

From sequence to scalable biologics.

ArtProtein develops, scales, and characterizes complex biologics on our CHO-art and HEK-art expression platforms — from first stable clone through IND-ready documentation, for both human therapeutic and USDA 9CFR animal-health programs.

> 2 g/L
Typical CHO titer (up to 10 g/L)
3 weeks
Construct to stable expressing pool
14–18 weeks
Stable clone with monoclonality
30 mL – 250 L
Shake flask through bioreactor scale

What we do

We support biologics programs across the full development lifecycle — from first stable clone to a regulatory-ready technical package.

Cell Line Development

Cell Line Development

Stable CHO/HEK cell lines engineered for multi-g/L productivity. Complete clone screening, productivity optimization, and monoclonality documentation for IND-ready programs.

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Process Development

Process Development

DoE-driven upstream and downstream processes designed for reliable tech transfer. Scalable fed-batch, purification strategies, and robustness studies — built for regulatory filing.

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Analytical Development

Analytical Development

Fit-for-purpose analytical methods and characterization packages aligned with regulatory expectations. Method development, product characterization, and comparability studies.

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Regulatory Documentation

Regulatory Documentation

CMC sections and supporting appendices for IND/IMPD submissions. Risk-based approach to qualification, development history reports, and pre-IND meeting support.

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The biologics development pipeline

A science-driven approach that takes your molecule from idea to IND-ready package.

Sequence & Strategy
Molecule review, expression strategy, risk assessment
Cell Line Development
Transfection, clone screening, stability studies
Process Development
Upstream scale-up, DSP optimization, robustness
Analytical Package
Characterization, methods, comparability
IND-Ready Package
CMC documentation, regulatory submission support

Frequently asked questions

Common questions from biotech teams evaluating a CDMO partner. For program-specific questions, start a conversation.

What is a biologics CDMO?

A biologics Contract Development and Manufacturing Organization develops and produces protein-based therapies on behalf of biotech and pharmaceutical companies. ArtProtein specializes in biologics expression across modalities — analyzing sequences and developability liabilities that affect expression, and designing processes purpose-built for each molecule.

What does cell line development involve?

Cell line development creates the stable producer cell line that will manufacture your biologic. The ArtProtein RapidClone workflow electroporates your construct into our CHO-art or HEK-art host, drives the population through kill-phase selection to recovery, and yields homogeneously expressing stable pools — typically within 3 weeks. Selected pools then undergo single-cell subcloning to identify the best-expressing clones, with monoclonality evidence and stability data delivered at 14–18 weeks total.

What is included in an IND-ready package?

An IND-ready package documents everything regulators need to evaluate the manufactured product — from subclone identity confirmation through upstream and downstream process characterization, analytical method development, and any client-specific deliverables (stability, comparability, etc.). The package is structured to fit directly into your IND CMC section.

What are USDA 9CFR studies and when are they needed?

USDA 9CFR studies are required for biologics intended for veterinary or animal-health use — typically point-of-care products and anything regulated by the USDA Center for Veterinary Biologics (CVB-PEL). ArtProtein supports the full 9CFR pathway: study design and proposal drafting, the analytical testing itself, and the final report drafting for CVB-PEL submission.

What's the difference between CHO and HEK expression platforms?

CHO is the industry-standard host for large-scale biologics manufacturing — it scales well, has decades of regulatory precedent, and supports complex post-translational modifications. HEK is product-driven: certain molecules (some viral vectors, specific recombinant proteins requiring human-like glycosylation) express better in HEK. ArtProtein operates both — CHO-art for typical monoclonal antibodies and recombinant proteins, HEK-art when the molecule calls for it.

Ready to advance your biologic?

Whether you're at sequence stage or scaling an existing process, ArtProtein can help. Tell us about your program.