Abstract

Targeted Radionuclide Therapies (TRT) involve the tailored combination of a therapeutic radionuclide and a targeting molecule, as for instance antibodies or fragments thereof. Despite their short shelf-life, these drug products must meet stringent regulatory standards before use. We introduce a novel, efficient method utilizing Bio-Layer Interferometry (BLI) for rapid identity testing of TRT drug products in less than five minutes. This approach not only reduces radioactive waste but also minimizes operator exposure to radiation. This label-free method has been successfully developed and validated for three different TRT products, ensuring compliance with Good Manufacturing Practices (GMP). Furthermore, we outline our strategic approach to the production and testing of custom biosensors for each product, firmly grounded in Quality-by-Design (QbD) principles.

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