Christina Vasalou, Theresa A Proia, Laura Kazlauskas, Anna Przybyla, Matthew Sung, Srinivas Mamidi, Kim Maratea, Matthew Griffin, Rebecca Sargeant, Jelena Urosevic, Anton I Rosenbaum, Jiaqi Yuan, Krishna C Aluri, Diane Ramsden, Niresh Hariparsad, Rhys D O Jones, Jerome T Mettetal
Trastuzumab deruxtecan (T-DXd; DS-8201; ENHERTU®) is a human epithelial growth factor receptor 2 (HER2)-directed antibody drug conjugate (ADC) with demonstrated antitumor activity against a range of tumor types. Aiming to understand the relationship between antigen expression and downstream efficacy outcomes, T-DXd was administered in tumor-bearing mice carrying NCI-N87, Capan-1, JIMT-1, and MDA-MB-468 xenografts, characterized by varying HER2 levels. Plasma pharmacokinetics (PK) of total antibody, T-DXd, and released DXd and tumor concentrations of released DXd were evaluated, in addition to monitoring γΗ2AX and pRAD50 pharmacodynamic (PD) response...
March 26, 2024: CPT: Pharmacometrics & Systems Pharmacology