4297 CD19 Expression by IHC Alone Is Not a Predictor of Response to Loncastuximab Tesirine: Results from the LOTIS-2 Clinical Trial and Quantitative Systems Pharmacology Modeling
Published date:
11/03/2022
Excerpt:
CD19 expression determined by immunohistochemistry (IHC) was evaluated in a cohort of patients…Responses to Lonca were seen in patients across all levels of CD19 expression, including patients with extremely low or no detectable CD19 expression at baseline and extremely low H-Scores....Response to Lonca was observed in R/R DLBCL patients with very low CD19 tumor expression as measured by IHC.