sorry, that last line was supposed to say that INCY had the heavily pretreated population.
VRTX announced "almost half" improved 50% at 12 weeks, INCY had shown 44% at 50% improvement at 24 weeks. VRTX said two thirds had improvement of 20%, INCY had 72%.
VRTX / INCY had the similar numbers, but INCY is ahead in trials, and had a heavily pretreated population.