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Recruiting Phase 2 NCT05980806

NCT05980806 A Study of Selinexor Monotherapy in Subjects With JAK Inhibitor-naïve Myelofibrosis and Moderate Thrombocytopenia

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Clinical Trial Summary
NCT ID NCT05980806
Status Recruiting
Phase Phase 2
Sponsor Karyopharm Therapeutics Inc
Condition Myelofibrosis
Study Type INTERVENTIONAL
Enrollment 58 participants
Start Date 2024-04-22
Primary Completion 2027-06

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Selinexor 60 mgSelinexor 40 mgRuxolitinib

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 58 participants in total. It began in 2024-04-22 with a primary completion date of 2027-06.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The main purpose of this study is to evaluate the efficacy of selinexor in JAKi-naïve participants with myelofibrosis (MF) and with normal platelet counts or with mild to moderate thrombocytopenia based on spleen volume reduction (SVR). Additional efficacy and safety parameters will also be assessed during the study.

Eligibility Criteria

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 or 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 C1D1 are acceptable) * 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 greater than or equal to (\>=) 50 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 transaminase (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 an average score \>= 5 or total score of \>= 12 at screening (at least 5 of 7 consecutive days immediately preceding C1D1) using the MFSAF V4.0 * Must provide bone marrow biopsy samples (samples obtained up to 3 months prior to C1D1 are permitted) at screening and during the study * Currently not eligible for stem cell transplantation * 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 * Females who are pregnant or lactating * Prior splenectomy, splenic radiation, or a splenic embolization within 6 months prior to C1D1 * History of myocardial infarction, unstable angina, percutaneous transluminal coronary angioplasty (PTCA), coronary artery bypass graft (CABG), cerebrovascular accident (transient ischemic attack \[TIA\]), ventricular arrhythmias, congestive heart failure class \> 2 per New York Heart Association (NYHA) within 6 months of C1D1 * Unable to tolerate two forms of antiemetics prior to each dose for the first two cycles

Contact & Investigator

Central Contact

Karyopharm Medical Information

✉ clinicaltrials@karyopharm.com

📞 (888) 209-9326

Frequently Asked Questions

Who can join the NCT05980806 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Myelofibrosis. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT05980806 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT05980806 currently recruiting?

Yes, NCT05980806 is actively recruiting participants. Contact the research team at clinicaltrials@karyopharm.com for enrollment information.

Where is the NCT05980806 trial being conducted?

This trial is being conducted at Duarte, United States, Columbia, United States, New York, United States, Durham, United States and 11 additional locations.

Who is sponsoring the NCT05980806 clinical trial?

NCT05980806 is sponsored by Karyopharm Therapeutics Inc. The trial plans to enroll 58 participants.

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