Article
作者: Cottell, Jeromy J. ; Mwangi, Judy ; Bacon, Elizabeth M. ; Lansdon, Eric B. ; Dick, Ryan A. ; Brizgys, Gediminas ; Ammann, Stephen E. ; Chou, Chienhung ; Warr, Matthew R. ; Wright, Nathan E. ; Zipfel, Sheila M. ; Snyder, Chelsea A. ; Link, John O. ; Taylor, James G. ; Ndukwe, Marilyn S. ; Suekawa-Pirrone, Kimberly ; Mukherjee, Prasenjit Kumar ; Chin, Elbert ; Murray, Bernard P. ; Park, Grace Y. ; Hammond, Angela ; Garrison, Kimberly L. ; Yang, Zheng-Yu ; Ferrao, Ryan D. ; Conway, Angela ; Serone, Adrian P.
Interleukin-1 receptor-associated kinase 4 (IRAK4) activity mediates pro-inflammatory signaling and cytokine production downstream of toll-like and interleukin-1 receptors (TLR, IL-1R). Selective IRAK4 inhibitors have generated interest as potential treatments for inflammatory diseases. Herein, we report the discovery of GS-5718 (edecesertib), a potent, selective, orally bioavailable IRAK4 inhibitor. Key to this endeavor were efforts undertaken to improve the chemical series' profile after a significant hERG liability was encountered for an early compound. GS-5718 was safe and well-tolerated in IND-enabling preclinical animal toxicity studies, demonstrated efficacy in a mouse NZB lupus model, and additionally demonstrated human pharmacokinetic properties suitable for once-daily administration. Edecesertib is currently under clinical evaluation for the treatment of lupus.