The presentation at EHA also provides additional details on the subgroup of patients (n=37) who met the criteria of HTB (≥ 4 units pRBCs per 8-week period for 2 consecutive 8-week periods) per IWG-2018, where roxadustat achieved clinically meaningful efficacy in patients with LR-MDS and HTB with higher rates of ≥8-, 12-, 16-week RBC TI vs placebo. TEAEs were generally lower grade and managed medically with no new safety signals.

The poster presentation, titled "Roxadustat improves transfusion independence in LR-MDS patients with anemia and high transfusion burden and in ring sideroblast positive and negative disease: post-hoc analysis of MATTERHORN study" is scheduled for the poster session taking place on June 12, 2026 at 18:45 CEST.

The pivotal Phase 3 trial protocol of roxadustat for the treatment of anemia in patients with LR-MDS and high transfusion burden is being finalized based on feedback received from the FDA.