Post-Essential Thrombocythemia Myelofibrosis

10

Review clinical trials related to Post-Essential Thrombocythemia Myelofibrosis. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

A Phase 1 Study of PRT12396 in Participants With Select Myeloproliferative Neoplasms

This is a first-in-human, open-label, multi-center Phase 1 study designed to evaluate the safety, tolerability, pharmacokinetics, and preliminary efficacy of PRT12396 in participants with high-risk polycythemia vera (PV) and myelofibrosis (MF), and to determine the maximum tolerated dose (MTD) and recommended dose(s) for expansion (RDE\[s\]). The study consists of a dose-escalation phase followed by a dose-expansion phase to further evaluate selected dose level(s).

Participants needed: 100
Trial details
Phase: Phase 1Age: 18+Biological sex: AllType: InterventionalSponsor: Prelude TherapeuticsUpdated: Jun 9, 2026Locations: 5
Eligibility criteria

Willing and able to comply with all scheduled visits, treatment plan, laboratory... [+6]

History of another malignancy within 3 years prior to enrollment, except for mal... [+10]

Status: Recruiting

Research Platform Myelofibrosis and Anemia

The purpose of the project is to set up a national, prospective, longitudinal, multicenter cohort study, a tumor research platform, to document uniform data on characteristics, molecular diagnostics, treatment and course of disease and to collect patient-reported outcomes for patients with primary and secondary myelofibrosis and anemia in Germany.

Participants needed: 200
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: iOMEDICO AGUpdated: Jun 5, 2026Locations: 1
Eligibility criteria

Confirmed diagnosis of primary or secondary (post-polycythemia vera or post-esse... [+5]

No systemic therapy for diagnosed primary or secondary MF. [+1]

Status: Recruiting

Study of DISC-0974 (RALLY-MF) in Participants With Myelofibrosis or Myelodysplastic Syndrome and Anemia

This phase 1b/2a open-label study will assess the safety, tolerability, pharmacokinetics and pharmacodynamics of DISC-0974 as well as categorize the effects on anemia response in subjects with myelofibrosis or myelodysplastic syndrome and anemia.

Participants needed: 150
Trial details
Phase: Phase 1, Phase 2Age: 18+Biological sex: AllType: InterventionalSponsor: Disc Medicine, IncUpdated: May 13, 2026Locations: 25
Eligibility criteria

Age 18 years or older at the time of signing the informed consent form (ICF). [+60]

Hereditary hemochromatosis [+55]

Status: Recruiting

A Phase 1 Study of AJ1-11095 in Patients With Primary Myelofibrosis (PMF), Post-Polycythemia Vera Myelofibrosis (PPV-MF), or Post-Essential Thrombocythemia Myelofibrosis (PET-MF) Who Have Been Failed by a Type I JAK2 Inhibitor (JAK2i)

AJX-101 is a first-in-human (FIH), phase 1, non-randomized, multi-center, open-label clinical trial designed to investigate the safety, tolerability, pharmacokinetics (PK), clinical activity and changes in biomarkers of an orally administered type II JAK2 inhibitor, AJ1-11095, in subjects with primary or secondary myelofibrosis previously treated with at least one type I JAK2 inhibitor.

Participants needed: 76
Trial details
Phase: Phase 1Age: 18+Biological sex: AllType: InterventionalSponsor: Ajax Therapeutics, Inc.Updated: May 12, 2026Locations: 21
Eligibility criteria

18 years of age or older. [+12]

Prior splenectomy. [+11]

Status: Recruiting

A Study to Evaluate Safety and Efficacy of Bomedemstat (MK-3543-017)

The primary purpose of the study is to transition participants into an extension study to collect long-term safety and efficacy data. The study will include participants who are safely tolerating bomedemstat, receiving clinical benefit from its use in estimation of the investigator, and have shown the following criteria: * Participants from the IMG-7289-202/MK-3543-005 (NCT05223920) study must have received at least 6 months of treatment with bomedemstat; * Essential thrombocythemia (ET) and polycythemia vera (PV) participants from studies other than IMG-7289-202/MK-3543-005 must have achieved confirmed hematologic remission. No hypothesis testing will be conducted in this study.

Participants needed: 400
Trial details
Phase: Phase 3Age: 18+Biological sex: AllType: InterventionalSponsor: Merck Sharp & Dohme LLCUpdated: Apr 2, 2026Locations: 21
Eligibility criteria

Is from a bomedemstat study sponsored by Imago BioSciences, Inc. (a subsidiary o... [+4]

Has received prohibited concomitant medications [+2]

Status: Not yet recruiting

Selinexor and Pacritinib in JAK Inhibitor-naïve MF Patients With Cytopenias

This is a phase II, multicenter, open-label trial evaluating the safety and efficacy of pacritinib and selinexor in JAK inhibitor naïve patients with anemia and thrombocytopenia.

Participants needed: 26
Trial details
Phase: Phase 2Age: 18+Biological sex: AllType: InterventionalSponsor: John MascarenhasUpdated: Mar 18, 2026Locations: 3
Eligibility criteria

Adults ≥ 18 years of age capable of providing informed consent [+18]

Prior treatment with Janus kinase (JAK) inhibitors [+18]

Status: Recruiting

MPN PROGRESSion Registry: Observational Study Tracking Symptoms, Treatments, and Disease Progression in People With Myeloproliferative Neoplasms (MPNs)

The MPN PROGRESSion Registry is a multi-year, observational research study designed to improve understanding of myeloproliferative neoplasms (MPNs)-a group of rare, chronic blood cancers that include polycythemia vera (PV), essential thrombocythemia (ET), primary myelofibrosis (MF), pre-fibrotic primary myelofibrosis (pre-PMF), secondary myelofibrosis, myeloproliferative neoplasm-unclassifiable (MPN-U), MPN in accelerated phase (MPN-AP), and MPN in blast phase (MPN-BP), post-MPN Acute Myeloid Leukemia (AML), and MDS/MPN overlap syndrome as defined above per WHO 2022 criteria, including patients originally diagnosed with one of these conditions but who have received one or more SCTs and/or BMTs . These conditions are characterized by abnormal blood cell production in the bone marrow and may lead to complications such as blood clots, bleeding, bone marrow fibrosis, and, in some cases, progression to acute leukemia. The central hypothesis of the registry is that collecting and analyzing real-world, longitudinal data-including electronic health records (EHRs), laboratory values, treatments, and patient-reported outcomes (PROs)-from a diverse population of people living with MPNs will help identify patterns and predictors of disease progression, treatment response, quality of life, and long-term outcomes. These insights are intended to guide future research, inform clinical guidelines, and support improvements in patient care. The registry is non-interventional and observational; participants do not receive investigational treatments, and all medical care continues under the supervision of their own physicians. Data collection includes EHRs, PRO surveys, patient-reported symptom and lab tracking, insurance claims, and, in the future, may include linkages with other relevant disease registries and datasets. Potential collaborations under consideration include those with the European LeukemiaNet (ELN) MPN Registry, the Mayo Clinic MPN Database, the Center for International Blood and Marrow Transplant Research (CIBMTR), the SEER Program, Harmony Alliance Foundation, and the National Cancer Database (NCDB). The registry emphasizes the patient voice, incorporating lived experiences related to hallmark MPN symptoms such as fatigue, pruritus (itching), bone pain, night sweats, and social and emotional impacts. Participants will be followed for at least five years, with many enrolled for ten years or longer, to capture the natural history of disease and long-term outcomes. PRO surveys will be completed approximately every six months, and EHR data will be regularly reviewed to track changes in clinical status, treatment, and disease evolution. Statistical analyses will use descriptive and inferential methods to examine clinical characteristics, symptom burden, disease trajectories, and patient-centered outcomes. Planned subgroup analyses may compare differences across diagnoses, treatment approaches, demographics, or genomic factors. Analytic plans will be finalized during the course of the study and may evolve in response to emerging scientific questions. The registry is open to adults (18 years or older) living in the United States who have been diagnosed with any of the included MPN subtypes and are willing to share health information and complete study surveys. Individuals currently enrolled in interventional clinical trials or unable to provide informed consent may be excluded. Participation is voluntary, and participants may withdraw from the study at any time without affecting their medical care. Privacy and data security are core priorities. Participant data will be securely stored and managed in accordance with all applicable privacy laws and research regulations. No identifiable information will be shared with external parties without appropriate authorization. Oversight is provided by a Steering Committee and a Patient Engagement Advisory Committee (PEAC), ensuring rigorous scientific, ethical, and patient-centered governance. The registry is sponsored by the MPN Research Foundation, a nonprofit organization advancing research and patient advocacy in myeloproliferative neoplasms (MPNs). Participants can contact the registry team at any time with questions and will receive periodic updates on study findings. This study aims to address critical gaps in understanding the real-world experiences of people with MPNs-such as symptom burden over time, risk factors for progression, and how different treatments impact patient outcomes. Findings may inform clinical trial design, support biomarker discovery, and contribute to the development of updated treatment recommendations. The registry is committed to including participants from diverse backgrounds and clinical settings to ensure findings are broadly applicable across the MPN community. Summary results will be shared through scientific publications, presentations, and other dissemination efforts to advance MPN research and care globally.

Participants needed: 5,000
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: MPN Research FoundationUpdated: Jan 23, 2026Locations: 2
Eligibility criteria

Adults aged 18 years or older at the time of enrollment. [+14]

Individuals under 18 years of age. [+3]

Status: Recruiting

A Post-Marketing Surveillance Study to Assess the Safety of Fedratinib in Korean Patients With Myelofibrosis

The purpose of this study is to assess the real-world safety of fedratinib for the treatment of adult participants with primary myelofibrosis (PMF), post polycythemia vera myelofibrosis (post-PV MF), or post essential thrombocythemia myelofibrosis (post-ET MF) who were previously treated with ruxolitinib. Participants will represent the overall patient population with PMF, post-PV MF or post-ET MF who lost adequate response to and/or are intolerant to ruxolitinib. Inadequate response definitions will follow Ministry of Food and Drug Safety-approved label and reimbursement criteria of the Health Insurance Review \& Assessment Service.

Participants needed: 137
Trial details
Age: 19+Biological sex: AllType: ObservationalSponsor: Bristol-Myers SquibbUpdated: Nov 6, 2024Locations: 3
Eligibility criteria

Participants 19 years of age or older [+3]

Participants who have been prescribed fedratinib for an indication not approved... [+2]

Status: Recruiting

Pacritinib w/ Talazoparib in Pts w/ Myeloproliferative Neoplasms Unresponsive to JAK2 Inhibition

This is a prospective phase I dose-escalation study, with the primary objective to access the MTD and find the RP2D of talazoparib, given in combination with standard of care dosing of pacritinib.

Participants needed: 24
Trial details
Phase: Phase 1Age: 18+Biological sex: AllType: InterventionalSponsor: Fox Chase Cancer CenterUpdated: May 3, 2024Locations: 1
Eligibility criteria

Patients must have histologically or cytologically confirmed primary myelofibros... [+8]

Patients may not be receiving any other investigational agents [+6]

Status: Recruiting

Asian Myeloproliferative Neoplasm (MPN) Registry

This is a multinational, multicenter, prospective and retrospective, observational, cohort study of patients with myeloproliferative neoplasm.

Participants needed: 1,000
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: The University of Hong KongUpdated: May 31, 2023Locations: 1Duration: 10 Years
Eligibility criteria

Age ≥ 18 years old at the time of diagnosis of MPN. [+8]