A First-in-Human Phase 1 Trial of NX-2127, a First-in-Class Bruton's Tyrosine Kinase (BTK) Dual-Targeted Protein Degrader with Immunomodulatory Activity, in Patients with Relapsed/Refractory B Cell Malignancies
Blood(2023)
Abstract
Introduction: Although BTK inhibitors (BTKi) are effective therapeutics in the treatment of B cell malignancies, emerging BTK resistance mutations in chronic lymphocytic leukemia (CLL), as well as potential growth-promoting kinase-independent scaffolding function of BTK, present a need for improved or new approaches. Additionally, preclinical and clinical data in non-Hodgkin's lymphoma (NHL) suggest that drugs modulating cereblon may synergize with BTKi to provide a therapeutic effect. NX-2127 is an oral, first-in-class, dual-function small molecule degrader that combines BTK degradation with the immunomodulatory activity of an Ikaros and Aiolos degrader. Preliminary safety of NX-2127 in patients across B cell malignancies and efficacy in patients with CLL have been presented previously [Mato et al. 2022; Danilov et al. 2023]. Here we report further safety and efficacy follow-up in patients with CLL and efficacy data in patients with NHL enrolled to date.
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