In Segment A, members will acquire distinct doses and schedules of oral ABBV-744 pill to identify Risk-free dosing program. Extra members is going to be enrolled on the determined monotherapy dosign program. In Phase B, participants will receive oral ruxolitinib and ABBV-744 is going to be given as "include-on" therapy. https://brd4-targetedtherapyabbv-23568.blogpixi.com/32248415/5-easy-facts-about-abbv-744-brd4-inhibitor-mechanism-of-action-described