ECLIPSE-PV: A Randomized, Multicenter Study to Assess Efficacy, Safety, and Tolerability of Two Dosing Regimens of Ropeginterferon Alfa-2b-Njft in Polycythemia Vera.
John Mascarenhas, Prithviraj Bose, Christopher Hillis, Abdulraheem Yacoub, Firas El Chaer, Dawn Maze, Ghaith Abu-Zeinah, Albert Qin, Victor Priego, Tsewang Tashi, Sonia Cerquozzi, Sunil Babu, Lynda Foltz, Swati Goel, Rupali R Bhave, Stephanie Lee, Stephen T Oh, Brandi Reeves, Christopher Benton, Luke Fletcher, Shireen Sirhan, Hana Safah, Hayman Salib, Pierre J A Villeneuve, Oleh Zagrijtschuk, Henry Castro, Lucia Masarova
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Abstract
Introduction: Ropeginterferon alfa-2b-njft (ropeg) was approved and recommended as a preferred cytoreductive treatment for polycythemia vera (PV). The approved regimen requires an initial dose of 100 μg or 50 μg if transitioning from hydroxyurea (HU) and up-titrations of 50 μg every 2 weeks to 500 μg maximumly. The time to achieve the plateau dose takes approximately 20 weeks. This study compares the approved regimen with a higher initial dose and accelerated dose titration (HIDAT) regimen.
Methods: ECLIPSE-PV is a randomized, open-label, multicenter trial in patients with PV in the USA and Canada. Patients received ropeg either per the approved dosing schema or HIDAT regimen, i.e., 250 μg on day 0, 350 μg at week 2, and 500 μg from week 4 thereafter if tolerable. The primary endpoint is complete hematologic response (CHR) rate at week 24. CHR is defined as hematocrit <45%, white blood cells <10 × 109/L, platelets ≤400 × 109/L without phlebotomy in the previous 12 weeks. Secondary endpoints include molecular response, safety, tolerability, and quality of life.
Conclusion: A total of 111 patients were randomized and the last patient was enrolled on June 21, 2024. As of November 12, 2024, the discontinuation rate was 14.4%, and 16 patients (14.4%) completed the study. The study is expected to be completed in the summer of 2025. This is the first prospective trial comparing two dosing regimens of ropeg. The results will inform the optimal treatment strategy for patients with PV.
期刊介绍：
''Acta Haematologica'' is a well-established and internationally recognized clinically-oriented journal featuring balanced, wide-ranging coverage of current hematology research. A wealth of information on such problems as anemia, leukemia, lymphoma, multiple myeloma, hereditary disorders, blood coagulation, growth factors, hematopoiesis and differentiation is contained in first-rate basic and clinical papers some of which are accompanied by editorial comments by eminent experts. These are supplemented by short state-of-the-art communications, reviews and correspondence as well as occasional special issues devoted to ‘hot topics’ in hematology. These will keep the practicing hematologist well informed of the new developments in the field.
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