To evaluate the targeting efficiency, pattern, and reflect the target distribution.
ADC Analytical Characterization & Validation Service
Creative Biolabs delivers a complete, high-fidelity solution for ADC analytical characterization and validation, bridging the gap between molecular complexity and project success. By integrating real-time DAR monitoring, ultra-sensitive free-payload impurity detection, and predictive 3D functional assays, we provide the technical depth necessary to advance your ADC research with total confidence. Our customized protocols ensure that every aspect of your bioconjugate's structural and functional profile is meticulously validated to meet the highest scientific research standards.
Introduction What We Can Offer How We Can Help Why Choose Us? Customer Reviews FAQs Related Services Contact Us
Introduction of ADC Analytical Characterization and Validation
The assembling of an antibody-drug conjugate (ADC) is the covalent coupling of a critical monoclonal antibody and a druggable payload through a specific linker molecule. The final goal of ADC discovery and development is to deploy the ADC candidate into animal models and eventually patients, to treat cancer utilizing the payload efficacy of the ADC. Before deploying the ADC candidate into in vivo systems, in vitro analytical characterization and validation are necessary to capture the basic biochemical characteristics and in vitro efficacy data to evaluate the ADC project. Creative Biolabs provides a series of ADC in vitro analytical characterization and validation services to determine the biochemistry and efficacy of the ADC candidate, which can provide directions and guidelines for project progression.
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Fig.1 LB-LC-MS/MS methods for ADC bioanalysis and validation. 1
What We Can Offer
Creative Biolabs offers a comprehensive set of in vitro analytical characterization and validation services, including: (but not limited to)
Biochemical Analysis
We offer biochemical analysis to determine the structure, stability, and drug conjugation pattern of the assembled ADC.
Structural analysis
To evaluate the structure of the antibody or antibody fragment to ensure correct folding after payload chemistry conjugation.
Drug antibody ratio (DAR) determination
To determine the payload drug to antibody molar ratio, as well as the distribution pattern of various DAR species via chromatography and mass spectroscopy analysis.
Stability analysis
To evaluate the physical stability (auto-fragmentation, aggregation, thermal stability, solubility), chemical stability (in vitro minimum payload release at non-desired buffer, antibody reactivity during and after chemistry conjugation), and serum stability, etc.
Conjugation sites analysis
To offer the analytical results of conjugated payload-linker location sites through mass spectroscopy, as well as the conjugation information about the unreacted payload-linker on the target antibody.
In Vitro Efficacy Studies
We offer in vitro efficacy studies to evaluate the cytotoxicity of the constructed ADC utilizing various assays.
Cytotoxicity assays
To measure the cell viability in a dosage-dependent manner, utilizing antigen-expressing cell lines.
Affinity evaluation
To determine the antigen and Fc receptor binding affinity via different approaches, including ELISA, flow cytometry, and surface plasmon resonance (SPR).
ADCC and CDC assays
To perform antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) assays to provide more details about the pharmacological effects of the ADC.
3D In Vitro Platform
To mimic the tumor treatment, we offer a 3D in vitro platform to evaluate the behavior and cytotoxicity of an ADC using innovative antigen-expressing 3D cultured cells.
ADC targeting profile
ADC tumor penetration
To provide a 3D distribution profile of the ADC in tumors.
ADC tumor efficacy
To measure the efficacy of an ADC in a whole regime that can accurately mimic the scenarios of tumors.
How Creative Biolabs' service Can Assist Your Projects
Highlights
Advanced Platforms
We utilize high-resolution analytical instrumentation to ensure molecular clarity and exceptional data precision throughout every stage of development.
Expert Personnel
Our highly experienced technical team provides deep scientific insights to help researchers navigate complex biochemical and structural challenges.
End-to-End Validation
We offer in vitro characterization services covering everything from initial screening to complete functional and structural validation.
Customized Support
Every project receives tailored analytical strategies designed to address specific research goals and unique molecular requirements effectively.
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Customer Reviews
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Superior DAR Accuracy
Using Creative Biolabs' characterization in our research has significantly improved our ability to correlate DAR distribution with in vitro results. Their native MS approach provided clarity where HIC alone failed to resolve high-DAR species. - Dr. A**a. H. -
Exceptional 3D Modeling
Using Creative Biolabs' 3D tumor penetration assays has facilitated a much more accurate prediction of in vitro efficacy compared to our previous 2D models. It allowed us to pivot our linker technology early. - Prof. M**a. L.
FAQs
How do you handle high-DAR species that tend to aggregate?
We utilize specialized analytical methods and optimized mobile phases to ensure hydrophobic species are accurately characterized without artificial aggregation or loss.
Can you distinguish between the active drug and its inactive metabolites?
Yes, our advanced platforms independently quantify active conjugates versus total antibody forms, providing a precise understanding of potential research efficacy and potency.
Related Services
ADC Antibody Screening Service
High-throughput identification of antibody candidates based on target binding affinity and efficient cellular internalization rates.
Learn More →ADC Fill and Finish Service
Specialized aseptic processing and formulation development for high-potency bioconjugates to ensure product integrity and long-term stability.
Learn More →How to Contact Us
ADC has emerged as a promising immunotherapy with high potential in the treatment of cancer. Creative Biolabs offers a series of in vitro assays to provide accurate guidelines for ADC optimization and in vivo testing in the next stage. We are dedicated to providing customized solutions to tailor a specific service package. Any questions, please feel free to contact us for more information and a detailed quote.
Reference
- Cahuzac, Héloïse, and Laurent Devel. "Analytical Methods for the Detection and Quantification of ADCs in Biological Matrices." Pharmaceuticals (Basel, Switzerland) vol. 13,12 462. 14 Dec. 2020. Distributed under an Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/ph13120462
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