Go back to trials list
A Phase 2 Study to Evaluate the Efficacy and Safety of Selinexor Monotherapy in Subjects with JAK Inhibitor-naïve Myelofibrosis and Moderate Thrombocytopenia
Description
The main purpose of this study with corresponding optional expansion is to evaluate the efficacy of selinexor in JAKi-naïve participants with myelofibrosis (MF) and moderate thrombocytopenia based on spleen volume reduction (SVR). Additional efficacy and safety parameters will also be assessed during the study.
Trial Eligibility
Key Inclusion Criteria: * A diagnosis of MF or post-ET or post-PV MF according to the 2016 World Health Organization (WHO) classification of MPN, confirmed by the most recent local pathology report. * Measurable splenomegaly during the screening period as demonstrated by spleen volume of greater than equal to (\>=) 450 cubic square centimeter (cm\^3) by MRI or CT scan (results from MRI or CT imaging performed within 28 days prior to screening are acceptable). * Participants with DIPSS risk category of intermediate-1 with symptoms, or intermediate-2, or high-risk. * ECOG Performance Status less than or equal to (\<=) 2. * Platelet count of 50 to less than (\<) 100 x 10\^9/L without platelet transfusion within 7 days prior to the first dose of selinexor. * Absolute neutrophil count (ANC) \>=1.0 × 10\^9/L without need for growth factors within 7 days prior to the first dose of selinexor. * Adequate liver function as defined by the following: aspartate transaminase (AST) and alanine aminotransferase (ALT) \<= 2.5 × upper limit normal (ULN) and serum total bilirubin \<= 3×ULN. * Calculated creatinine clearance (CrCl) greater than (\>) 15 milliliter per minute (mL/min) based on the Cockcroft and Gault formula. * Active symptoms of MF as determined by presence of at least 2 symptoms with a score \>= 3 or total score of \>= 10 at screening using the MFSAF V4.0. * Participants must provide bone marrow biopsy samples (samples obtained up to 3 months prior to C1D1 are permitted) at screening and during the study. * Participants currently not a candidate for stem cell transplantation. * Participants must be willing to complete the MFSAF V4.0 daily during the study for evaluating the symptom response (i.e., TSS50). Key Exclusion Criteria: * More than 10% blasts in peripheral blood or bone marrow (accelerated or blast phase). * Previous treatment with JAK inhibitors for MF. * Previous treatment with selinexor or other XPO1 inhibitors. * Female participants who are pregnant or lactating. * Prior splenectomy, or splenic radiation within 6 months prior to C1D1. * History of myocardial infarction, unstable angina, percutaneous transluminal coronary angioplasty (PTCA) or coronary artery bypass graft (CABG), cerebrovascular accident (stroke or transient ischemic attack \[TIA\]), ventricular arrhythmias, congestive heart failure New York Heart Association (NYHA) class \> 2 within 6 months of C1D1. * Participants unable to tolerate two forms of antiemetics prior to each dose for the first two cycles.
Study Info
Organization
Karyopharm Therapeutics Inc
Primary Outcome
Proportion of Participants with Spleen Volume Reduction 35 (SVR35) at Week 24.
Interventions
Locations Recruiting
City of Hope - Duarte Main Site
United States, California, Duarte
Maryland Oncology Hematology - Independent of SCRI/ US Oncology
United States, Maryland, Columbia
Weill Cornell Medicine NewYork-Presbyterian
United States, New York, New York
Duke University
United States, North Carolina, Durham
Cleveland Clinic
United States, Ohio, Cleveland
Interested in joining this trial?
Our dedicated patient navigators are here to support you by reviewing the eligibility criteria to see if you might qualify for this trial.
Get the latest thought leadership on your Myelofibrosis delivered straight to your inbox
Subscribe to the weekly newsletter for news, stories, clinical trial updates, and helpful resources and events with cancer experts.