TABLE 1

Potency of CFTR potentiation in G551D/F508del HBE cells by ivacaftor and deuterated ivacaftor analogs

CompoundEC50, nM (95% CI)aCompoundEC50, nM (95% CI)a
Ivacaftor336 (295–382)CTP-656255 (220–296)
M1960 (756–1220)d8-M11346 (1040–1743)
M611,320 (8906–14,380)d6-M615,140 (10,390–22,050)
  • Current traces of representative data are shown in Supplemental Fig. 16.

  • a Calculated using AUC potentiator Ieq (µA/cm2) after forskolin addition, n = 3.