Phase III MANIFEST-2: Pelabresib + Ruxolitinib vs Placebo + Ruxolitinib in JAK Inhibitor Treatment-Naive Myelofibrosis
Claire Harrison, Vikas Gupta, Aaron T. Gerds, Raajit K. Rampal, Srđan Verstovšek, Moshe Talpaz, Jean‐Jacques Kiladjian, Ruben A. Mesa, Andrew Kuykendall, Alessandro M. Vannucchi, Francesca Palandri, Sebastian Grosicki, Timothy Devos, Éric Jourdan, Mariëlle J. Wondergem, Haifa Kathrin Al‐Ali, Veronika Buxhofer‐Ausch, Alberto Álvarez‐Larrán, Andrea Patriarca, Marina Kremyanskaya, Adam J. Mead, Sanjay Akhani, Yuri Sheikine, Gozde Colak, John Mascarenhas
Abstract
Myelofibrosis (MF) is a clonal myeloproliferative neoplasm, typically associated with disease-related symptoms, splenomegaly, cytopenias and bone marrow fibrosis. Patients experience a significant symptom burden and a reduced life expectancy. Patients with MF receive ruxolitinib as the current standard of care, but the depth and durability of responses and the percentage of patients achieving clinical outcome measures are limited; thus, a significant unmet medical need exists. Pelabresib is an investigational small-molecule bromodomain and extraterminal domain inhibitor currently in clinical development for MF. The aim of this article is to describe the design of the ongoing, global, phase III, double-blind, placebo-controlled MANIFEST-2 study evaluating the efficacy and safety of pelabresib and ruxolitinib versus placebo and ruxolitinib in patients with JAKi treatment-naive MF. Clinical Trial Registration: NCT04603495 (ClinicalTrials.gov)