1区 · 医学
Article
作者: Hansen, Gwenn ; Perez, Luz ; Auger, Paul ; Powers, Janine ; Ye, Jordan ; Sands, Arthur T. ; Karr, Dane ; Tan, Ying Siow ; Rountree, Ryan ; Robbins, Daniel W. ; Tenn-McClellan, Austin ; Chan, Ming Liang ; Konst, Zef A. ; Panga, Jaipal Reddy ; Mihalic, Jeff ; Murphy, Brent ; Kato, Daisuke ; Cherala, Ganesh ; McKinnell, Jenny ; Ma, Jun ; Peng, Ge ; Kelly, Aileen ; McIntosh, Joel ; Brathaban, Nivetha ; Clifton, Matthew C. ; Cass, Robert ; Wu, Jeffrey ; Guiducci, Cristiana ; Cohen, Frederick ; Noviski, Mark A. ; Ingallinera, Timothy G. ; Weiss, Dahlia R. ; Gajewski, Stefan
Bruton's tyrosine kinase (BTK), a member of the TEC family of kinases, is an essential effector of B-cell receptor (BCR) signaling. Chronic activation of BTK-mediated BCR signaling is a hallmark of many hematological malignancies, which makes it an attractive therapeutic target. Pharmacological inhibition of BTK enzymatic function is now a well-proven strategy for the treatment of patients with these malignancies. We report the discovery and characterization of NX-2127, a BTK degrader with concomitant immunomodulatory activity. By design, NX-2127 mediates the degradation of transcription factors IKZF1 and IKZF3 through molecular glue interactions with the cereblon E3 ubiquitin ligase complex. NX-2127 degrades common BTK resistance mutants, including BTKC481S. NX-2127 is orally bioavailable, exhibits in vivo degradation across species, and demonstrates efficacy in preclinical oncology models. NX-2127 has advanced into first-in-human clinical trials and achieves deep and sustained degradation of BTK following daily oral dosing at 100 mg.