Revised "iRR6" model in intermediate-1 risk myelofibrosis patients treated with ruxolitinib.

ABSTRACT:

Background

The response to ruxolitinib after 6 months (RR6) model allows early identification of ruxolitinib-treated myelofibrosis (MF) patients with poorer overall survival (OS); however, it is less applicable to lower-risk patients.

Methods

To further explore this, the authors performed a subanalysis of the "RUX-MF" study (NCT06516406) with an aim to validate the RR6 and to develop a score specific for intermediate-1 DIPSS/MYSEC-PM risk patients.

Results

Among the 776 evaluable patients, 34.4%, 47.8%, and 17.8% were at low, intermediate, and high RR6 risk, with 5-year OS of 64.1%, 51.8%, and 44.5%, respectively (p < .001). In the 428 intermediate-1 patients, the RR6 model did not discriminate between intermediate and low-risk patients (5-year OS: 74.4% vs. 72.0%, p 

SUBMITTER: Palandri F 

PROVIDER: S-EPMC12369922 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature