Functional Assays
Coriolis Pharma offers comprehensive functional assay services to evaluate the biological activity and efficacy of your biopharmaceutical compounds. Our expert analytical scientists develop tailored methods to assess the critical quality attributes (CQAs) of your drug product, supporting formulation development and ensuring the functionality of your therapeutic compound throughout its shelf life.
Functional Assays Tailored to Your Needs

Coriolis provides a range of functional assay types customized to your product and development phase.
Our collaborative approach allows us to develop methods that precisely meet your requirements, including:
- Antibody binding affinity and specificity
- Infectivity and titer determination for viruses and viral vectors
- Ligand–receptor binding
We take a unique approach to method development, leveraging our broad scientific experience with diverse biopharmaceutical samples to tailor each assay to your specific needs.
Our functional assay services are performed under GMP conditions in dedicated labs with full quality oversight. These services can be applied to viruses, cells and viral vectors, and fall under biosafety level 2.
Functional Assay Methods
We can select the most suitable approach for your analytical challenge, whether following a standardized in-house workflow or a custom-tailored solution.
Analytical Method Development, Qualification and Validation
For common sample types, we can often apply standardized methods with little setup effort. However, when needed, our experienced analytical experts create or optimize custom methods tailored to your active pharmaceutical ingredient, product type and development phase.
Your Drug Product
Coriolis Pharma’s deep expertise across many biologic modalities, combined with input from world-leading external advisors, offers the knowledge and experience needed to solve even the most complex formulation and drug development challenges.
Your Phase
Our expert team has the expertise and experience to guide your biologics formulation development program from preclinical and early-phase development to the market.
Functional Assays Frequently Asked Questions (FAQs)
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Functional assays evaluate the biological activity, potency, and efficacy of a therapeutic compound. These assays measure how well a drug performs its intended function—such as binding to a target, initiating a cellular response, or infecting a cell—under controlled conditions.
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Coriolis offers a wide range of assay formats, including:
- Antibody binding affinity and specificity
- Ligand–receptor binding assays
- Infectivity and titer determination for viruses and viral vectors
- Cell-based activity or binding assays
- Surface plasmon resonance (SPR)
- ELISA and qPCR-based potency assays
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Functional assays are essential throughout the development lifecycle. In early stages, they guide formulation design and establish potency. In later stages, they support lot release testing, stability studies, comparability assessments, and regulatory filings.
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Yes. Our scientific team works closely with clients to design, develop, and qualify custom assays tailored to their specific biologic modality, mechanism of action, and development phase. We offer both standardized and fully bespoke assay development.
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Yes. All functional assay services are performed under GMP in dedicated laboratories with full quality oversight. This ensures compliance with regulatory standards for biologics, gene therapies, viral vectors, and cell-based products.
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We support a broad range of sample types, including monoclonal antibodies, therapeutic proteins, peptides, viral vectors (e.g., AAV, lentivirus), nucleic acids, vaccines, and nanoparticulate delivery systems. All functional assays are conducted up to biosafety level 2 (BSL-2).
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While structural and physicochemical methods confirm identity and purity, functional assays demonstrate that the molecule performs as intended. Coriolis integrates functional testing with formulation development, stability studies, and release analytics.
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Surface plasmon resonance (SPR) is a label-free, real-time method for quantifying binding affinity and kinetics between molecules, such as antibody-antigen interactions. It’s a powerful tool for understanding potency and the mechanism of action.
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Yes. We offer TCID50 and qPCR-based assays to determine viral titer and infectivity. These are critical for characterizing gene therapy products and ensuring consistent vector potency and performance.
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Contact our team to discuss your molecule, modality, and development goals. We’ll recommend an assay strategy aligned with your regulatory requirements and product profile, and initiate a tailored development program.
Functional Assay Resources

Publications
April 12, 2024

Publications
Hyaluronan-Based Dissolving Microneedles with High Antigen Content for Intradermal Vaccination
January 1, 2019

Publications
October 24, 2017