1区 · 医学
Article
作者: Paradowski, Michael ; Good, James A. D. ; Cockerill, G. Stuart ; McLellan, Jason S. ; Bedernjak, Alexandre ; Williams, Gareth ; Lumley, James ; Angell, Richard M. ; Ward, Simon E. ; Taylor, Geraldine ; Ludes-Meyers, John H ; Littler, Edward ; Tait, Dereck ; Chuckowree, Irina ; Scott, Claire ; Young, Paul ; Gascon-Simorte, Jose ; Fraser, Ian ; Harland, Rachel ; Mathews, Neil ; Peeples, Mark E. ; Villalonga Barber, Carol ; Powell, Kenneth ; Thom, Michelle ; Watterson, Daniel ; Gilman, Morgan S. A. ; Lunn, Graham ; Johnson, Sara M. ; Thomas, Elaine
RV521 is an orally bioavailable inhibitor of respiratory syncytial virus (RSV) fusion that was identified after a lead optimization process based upon hits that originated from a physical property directed hit profiling exercise at Reviral. This exercise encompassed collaborations with a number of contract organizations with collaborative medicinal chemistry and virology during the optimization phase in addition to those utilized as the compound proceeded through preclinical and clinical evaluation. RV521 exhibited a mean IC50 of 1.2 nM against a panel of RSV A and B laboratory strains and clinical isolates with antiviral efficacy in the Balb/C mouse model of RSV infection. Oral bioavailability in preclinical species ranged from 42 to >100% with evidence of highly efficient penetration into lung tissue. In healthy adult human volunteers experimentally infected with RSV, a potent antiviral effect was observed with a significant reduction in viral load and symptoms compared to placebo.