CFTR and cystic fibrosis: Other potentiators, like H-01 and A-04 [98], P1, P2, P7 (from the Cystic Fibrosis Foundation’s CFTR Compound Program) and most notably ABBV-974 ([99]; formerly GLPG-1837) clustered together in combinatorial profiling, suggesting a similar mode-of-action as VX-770 [100].