Ayumi Takayanagi

Ayumi Takayanagi is a researcher in the Analytical Research Department at Chugai Pharmaceutical Co., Ltd., where she has established herself as a leading expert in bioassays. With extensive experience in the pharmaceutical industry, Ms. Takayanagi has made significant contributions to the field of analytical chemistry and quality control. Prior to her current role, Ms. Takayanagi spent several years in the Clinical Trial Drug Quality Control division at Chugai Pharmaceutical, gaining valuable experience in GMP and quality control processes in drug development. Ms. Takayanagi specializes in developing and optimizing bioassay methods for quality control purposes. Her expertise spans various techniques, including Surface Plasmon Resonance (SPR), cell-based assays, and “cell-free” assays. She has been instrumental in designing and implementing innovative bioassay techniques that have enhanced the efficiency and accuracy of drug potency testing. At CASSS Bioassay 2025, Ms. Takayanagi will present her latest research on cell-free assays, introducing novel methodologies and sharing intriguing phenomena observed during the development process.