Antibody-drug conjugates (ADCs) are a cutting-edge class of biopharmaceuticals that combine the selectivity of monoclonal antibodies with the cytotoxic potency of small-molecule drugs.
This targeted delivery system has redefined oncology treatment by reducing systemic toxicity and improving efficacy. ADCs are composed of a tumor-targeting antibody, a cytotoxic agent, and a chemical linker, which together create a complex structure that presents various analytical challenges.
These challenges include determining the drug-to-antibody ratio (DAR), ensuring specificity at the conjugation site, and assessing the stability of the linker, all of which significantly influence pharmacokinetics, pharmacodynamics, and potential toxicity.
This review highlights critical analytical techniques necessary for the characterization of ADCs, emphasizing their physicochemical properties, biological activity, stability assessments, and regulatory implications. Employing robust analytical methods is essential throughout the ADC development process to guarantee both therapeutic effectiveness and safety, ultimately positioning ADCs as a vital element in contemporary cancer treatment strategies.
Author: Vara Prasad Chandrabatla, Ph.D .1
1 Veranova, L.P., 25 Patton Road, Devens, MA 01434
Corresponding Author: Vara Prasad Chandrabatla, Ph.D. Associate Director – Analytical Research, Veranova. [ADC Directory][ORCID]
Key terms: ADC, antibody-drug conjugate, analytical characterization techniques, cancer, conjugation, drug-to-antibody ratio, DAR, payload, targeted therapies
Published In: ADC Review| Journal of Antibody-drug Conjugates
DOI: https://doi.org/10.14229/jadc.2025.07.15.001
How to cite:
Chandrabatla VP. Analytical Techniques for Antibody-Drug Conjugates: Comprehensive Insights – J. ADC. July , 2025. DOI: 10.14229/jadc.2025.07.15.001.
Last Editorial Review: July 11, 2025
Article History:
- Original Manuscript Received: June 1, 2025
- Review results received: July 07, 2025
- Manuscript accepted for publication: July 11, 2025
- Article published online: July 16, 2025
Article: © 2025 The Authors.
