Francesco Passamonti, MD, University of Insubria, Varese, Italy, talks on the findings of an analysis of data from the JUMP trial (NCT01493414), which investigated the safety and efficacy of ruxolitinib in patients with myelofibrosis. In the analysis, the activity of ruxolitinib was evaluated in four patient risk groups based on the Dynamic International Prognostic Scoring System (DIPSS). At 72 weeks, 82%, 80%, 69%, and 63% of myelofibrosis patients, in order of increasing risk category, exhibited a reduction in spleen length of more than 25%. Overall, these results suggest that earlier intervention with ruxolitinib in patients with myelofibrosis may produce better clinical outcomes. This interview took place during the ninth annual meeting of the Society of Hematologic Oncology (SOHO 2021) congress.