The MANIFEST-2 trial (NCT04603495) showed pelabresib (CPI-0610; Novartis) plus ruxolitinib (Jakafi; Incyte Corp) improved spleen volume, total symptom score (TSS), anemia, and bone marrow fibrosis (BMF) in JAK inhibitor-naïve myelofibrosis (MF) patients compared to ruxolitinib and placebo. At week 24, 65.9% achieved SVR35, and at week 48, 56.5% achieved SVR35 with pelabresib and ruxolitinib, versus 37.5% with placebo and ruxolitinib. The data will be presented at the 66th ASH Annual Meeting and Exposition on December 8, 2024.