ASH Clinical News May 2015 | Page 43

CLINICAL NEWS enrolled in this study were younger than age 65 at diagnosis, so the results may not apply to an older population. Dr. Kröger said that, in recent years, a greater number of older patients have received HCT – begging for a similar study in this population. Also, the analysis did not include patients treated with JAK inhibitors like ruxolitinb, which may affect life expectancy in patients with primary myelofibrosis. A retrospective 2014 study published in Blood found that patients with primary myelofibrosis and int-2 or high DIPSS risk scores had a median life expectancy of ≤4 years, while patients with higher DIPSS risks who received ruxolitinib treatment (95% CI 0.41-0.91; p=0.0148).2 Dr. Kröger explained that his group’s study was “performed in the ‘preruxolitinib era,’ so [results] may change if ruxolitinib pre-treatment was included.” In the current study, this inclusion was not possible because the follow-up for ruxolitinib-treated patient is currently too short. He added that a study with ruxolitinib is “mandatory” and that his group is planning a prospective trial. Although the study was limited by a small number of patients, the findings confirm the benefit for HCT in patients with high-ri ͬ