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Essential Thrombocythemia

Tundra lists 24 Essential Thrombocythemia clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT06661915

A Randomized Study of ASTX727 With or Without Iadademstat in Advanced Myeloproliferative Neoplasms (MPNs)

This phase II trial compares the effect of ASTX727 in combination with iadademstat to ASTX727 alone in treating patients with accelerated or blast phase Philadelphia chromosome negative myeloproliferative neoplasms (MPNs). ASTX727 is a combination of two drugs, cedazuridine and decitabine. Cedazuridine is in a class of medications called cytidine deaminase inhibitors. It prevents the breakdown of decitabine, making it more available in the body so that decitabine will have a greater effect. Decitabine is in a class of medications called hypomethylation agents. It works by helping the bone marrow produce normal blood cells and by killing abnormal cells in the bone marrow. Iadademstat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving ASTX727 in combination with iadademstat may be more effective than ASTX727 alone in treating patients with accelerated or blast phase Philadelphia chromosome negative MPNs.

Gender: All

Ages: 18 Years - Any

Updated: 2026-04-09

11 states

Accelerated Phase Myeloproliferative Neoplasm
Blast Phase Myeloproliferative Neoplasm
Essential Thrombocythemia
+5
ACTIVE NOT RECRUITING

NCT03289910

Topotecan Hydrochloride and Carboplatin With or Without Veliparib in Treating Advanced Myeloproliferative Disorders and Acute Myeloid Leukemia or Chronic Myelomonocytic Leukemia

This phase II trial studies how well topotecan hydrochloride and carboplatin with or without veliparib work in treating patients with myeloproliferative disorders that have spread to other places in the body and usually cannot be cured or controlled with treatment (advanced), and acute myeloid leukemia or chronic myelomonocytic leukemia. Drugs used in chemotherapy, such as topotecan hydrochloride and carboplatin, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Veliparib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving topotecan hydrochloride, carboplatin, and veliparib may work better in treating patients with myeloproliferative disorders and acute myeloid leukemia or chronic myelomonocytic leukemia compared to topotecan hydrochloride and carboplatin alone.

Gender: All

Ages: 18 Years - Any

Updated: 2026-04-09

4 states

Acute Myeloid Leukemia
Acute Myeloid Leukemia Arising From Previous Myelodysplastic Syndrome
Atypical Chronic Myeloid Leukemia
+7
RECRUITING

NCT06456346

Bomedemstat vs Hydroxyurea for Essential Thrombocythemia (MK-3543-007)

The purpose of this study is to evaluate the efficacy and safety of bomedemstat compared with hydroxyurea in cytoreductive therapy naïve essential thrombocythemia (ET) participants for whom cytoreductive therapy is indicated. Its primary objective is to compare bomedemstat to hydroxyurea with respect to durable clinicohematologic response (DCHR). The primary hypothesis is that bomedemstat is superior to hydroxyurea with respect to DCHR.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-27

103 states

Essential Thrombocythemia
RECRUITING

NCT06063486

Curcumin to Improve Inflammation and Symptoms in Patients With Clonal Cytopenia of Undetermined Significance, Low Risk Myelodysplastic Syndrome, and Myeloproliferative Neoplasms

This phase II trial evaluates how a curcumin supplement (C3 complex/Bioperine) changes the inflammatory response and symptomatology in patients with clonal cytopenia of undetermined significance (CCUS), low risk myelodysplastic syndrome (LR-MDS), and myeloproliferative neoplasms (MPN). Chronic inflammation drives disease development and contributes to symptoms experienced by patients with CCUS, LR-MDS, and MPN. Curcumin has been shown to have anti-inflammatory and anti-cancer properties and has been studied in various chronic illnesses and hematologic diseases.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-27

1 state

Clonal Cytopenia of Undetermined Significance
Essential Thrombocythemia
Myelodysplastic Syndrome
+2
RECRUITING

NCT05198960

AVAJAK: Apixaban/Rivaroxaban Versus Aspirin for Primary Prevention of Thrombo-embolic Complications in JAK2V617F-positive Myeloproliferative Neoplasms

Philadelphia-negative myeloproliferative neoplasms (MPN) are frequent and chronic myeloid malignancies including Polycythemia Vera (PV), essential thrombocythemia (ET), Primary Myelofibrosis (PMF) and Prefibrotic myelofibrosis (PreMF). These MPNs are caused by the acquisition of mutations affecting activation/proliferation pathways in hematopoietic stem cells. The principal mutations are JAK2V617F, calreticulin (CALR exon 9) and MPL W515. ET or MFP/PreMF patients who do not carry one of these three mutations are declared as triple-negative (3NEG) cases even if they are real MPN cases. These diseases are at high risk of thrombo-embolic complications and with high morbidity/mortality. This risk varies from 4 to 30% depending on MPN subtype and mutational status. In terms of therapy, all patients with MPNs should also take daily low-dose aspirin (LDA) as first antithrombotic drug, which is particularly efficient to reduce arterial but not venous events. Despite the association of a cytoreductive drug and LDA, thromboses still occur in 5-8% patients/year. All these situations have been explored in biological or clinical assays. All of them could increase the bleeding risk. We should look at different ways to reduce the thrombotic incidence: Direct Oral Anticoagulants (DOAC)? In the general population, in medical or surgical contexts, DOACs have demonstrated their efficiency to prevent or cure most of the venous or arterial thrombotic events. At the present time, DOAC can be used in cancer populations according to International Society on Thrombosis and Haemostasis (ISTH) recommendations, except in patients with cancer at high bleeding risk (gastro-intestinal or genito-urinary cancers). Unfortunately, in trials evaluating DOAC in cancer patients, most patients have solid rather than hematologic cancers (generally less than 10% of the patients, mostly lymphoma or myeloma). In cancer patients, DOAC are also highly efficient to reduce the incidence of thrombosis (-30 to 60%), but patients are exposed to a higher hemorrhagic risk, especially in digestive cancer patients. In the cancer population, pathophysiology of both thrombotic and hemorrhagic events may be quite different between solid cancers and MPN. If MPN patients are also considered to be cancer patients in many countries, the pathophysiology of thrombosis is quite specific (hyperviscosity, platelet abnormalities, clonality, specific cytokines…) and they are exposed to a lower risk of digestive hemorrhages. It is thus difficult to extend findings from the "general cancer population" to MPN patients. Unfortunately, only scarce, retrospective data regarding the use of DOAC in MPNs are available data. We were the first to publish a "real-life" study about the use, the impact, and the risks in this population. In this local retrospective study, 25 patients with MPN were treated with DOAC for a median time of 2.1 years. We observed only one thrombosis (4%) and three major hemorrhages (12%, after trauma or unprepared surgery). Furthermore, we have compared the benefit/risk balance compared to patients treated with LDA without difference. With the increasing evidences of efficacy and tolerance of DOAC in large cohorts of patients including cancer patients, with their proven efficacy on prevention of both arterial and venous thrombotic events and because of the absence of prospective trial using these drugs in MPN patients, we propose to study their potential benefit as primary thrombotic prevention in MPN.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-20

Polycythemia Vera
Essential Thrombocythemia
Prefibrotic/Early Primary Myelofibrosis
+2
RECRUITING

NCT04282187

Decitabine With Ruxolitinib, Fedratinib or Pacritinib for the Treatment of Accelerated/Blast Phase Myeloproliferative Neoplasms

This phase II trial studies how well decitabine with ruxolitinib, fedratinib, or pacritinib works before hematopoietic stem cell transplant in treating patients with accelerated/blast phase myeloproliferative neoplasms (tumors). Drugs used in chemotherapy, such as decitabine, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Ruxolitinib, fedratinib, and pacritinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving chemotherapy before a donor hematopoietic stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. The donated stem cells may also replace the patient's immune cells and help destroy any remaining cancer cells. Decitabine, with ruxolitinib, fedratinib, or pacritinib may work better than multi-agent chemotherapy or no pre-transplant therapy, in treating patients with accelerated/blast phase myeloproliferative neoplasms.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-16

1 state

Acute Myeloid Leukemia
Essential Thrombocythemia
Myelodysplastic Syndrome
+6
RECRUITING

NCT06079879

A Study of Bomedemstat (IMG-7289/MK-3543) Compared to Best Available Therapy (BAT) in Participants With Essential Thrombocythemia and an Inadequate Response or Intolerance of Hydroxyurea (MK-3543-006)

This is a study evaluating the safety and efficacy of bomedemstat (MK-3543) compared with the best available therapy (BAT) in participants with essential thrombocythemia (ET) who have an inadequate response to or are intolerant of hydroxyurea. The primary study hypothesis is that bomedemstat is superior to the best available therapy with respect to durable clinicohematologic response (DCHR).

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-13

86 states

Essential Thrombocythemia
ACTIVE NOT RECRUITING

NCT03862157

Azacitidine, Venetoclax, and Pevonedistat in Treating Patients With Newly Diagnosed Acute Myeloid Leukemia

This phase I/II trial studies the best dose of venetoclax when given together with azacitidine and pevonedistat and to see how well it works in treating patients with newly diagnosed acute myeloid leukemia. Drugs used in chemotherapy, such as azacitidine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Venetoclax may stop the growth of cancer cells by blocking Bcl-2, a protein needed for cancer cell survival. Pevonedistat may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving azacitidine, venetoclax, and pevonedistat may work better in treating patients with acute myeloid leukemia.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-11

1 state

Acute Myeloid Leukemia
Atypical Chronic Myeloid Leukemia, BCR-ABL1 Negative
Chronic Eosinophilic Leukemia, Not Otherwise Specified
+13
RECRUITING

NCT05123365

An Optimal Dose Finding Study of N-Acetylcysteine in Patients With Myeloproliferative Neoplasms

This is a phase I/II study evaluating the optimal dose of N-acetylcysteine (N-AC) in patients with myeloproliferative neoplasms (MPN).

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-10

1 state

Myeloproliferative Neoplasm
MPN
Essential Thrombocythemia
+2
RECRUITING

NCT04942080

Interest of CALR Allele Burden in Diagnosis and Follow-up of Patients With CALR Mutated Myeloproliferative Syndromes (CALRSUIVI)

Prospective study to evaluate the relevance of CALR allele burden monitoring as a molecular marker of disease progression.

Gender: All

Ages: 18 Years - Any

Updated: 2026-03-06

Myeloproliferative Neoplasm
Essential Thrombocythemia
Primary Myelofibrosis, Prefibrotic Stage
+1
ACTIVE NOT RECRUITING

NCT01199562

Infection Prophylaxis and Management in Treating Cytomegalovirus (CMV) Infection in Patients With Hematologic Malignancies Previously Treated With Donor Stem Cell Transplant

RATIONALE: Infection prophylaxis and management may help prevent cytomegalovirus (CMV) infection caused by a stem cell transplant. PURPOSE:This clinical trial studies infection prophylaxis and management in treating cytomegalovirus infection in patients with hematologic malignancies previously treated with donor stem cell transplant.

Gender: All

Ages: 18 Years - Any

Updated: 2026-01-28

1 state

Hematopoietic/Lymphoid Cancer
Accelerated Phase Chronic Myelogenous Leukemia
Acute Undifferentiated Leukemia
+151
RECRUITING

NCT04644211

Ruxolitinib in Thrombocythemia and Polycythemia Vera

This research is being done to see if the drug ruxolitinib is effective in reducing the symptoms caused by low-risk essential thrombocythemia (ET) and polycythemia vera (PV). \- This research study involves the study drug Ruxolitinib.

Gender: All

Ages: 18 Years - Any

Updated: 2026-01-08

1 state

Essential Thrombocythemia
Polycythemia Vera
ACTIVE NOT RECRUITING

NCT04262141

IMG-7289 in Patients With Essential Thrombocythemia (ET) or Polycythemia Vera (PV)

The purpose of this study is to assess the hematologic effects of IMG-7289 therapy in ET and PV patients who require platelet, White Blood Cell (WBC) or Red Blood Cell (RBC) control, and have failed at least one standard therapy.

Gender: All

Ages: 18 Years - Any

Updated: 2026-01-07

1 state

Essential Thrombocythemia
Polycythemia Vera
RECRUITING

NCT06361641

Functional and Phenotypic Characterization of Monocytes in Myeloproliferative Syndromes

Prospective study for functional and phenotypic characterization of monocytes in philadelphia-negative myeloproliferative neoplasms

Gender: All

Ages: 18 Years - Any

Updated: 2025-12-08

1 state

Myeloproliferative Neoplasm
Polycythemia Vera
Essential Thrombocythemia
+1
RECRUITING

NCT06552429

Peginterferon α-2b Injection for Hydroxyurea Resistant or Intolerant ET

This is a multicenter, randomized, open-label Phase 2 clinical study. It is aimed to enroll 27 essential thrombocytopenia (ET) patients who are resistant to or intolerant of hydroxyurea(HU). Eligible patients will be randomized to receive either Peginterferon α-2b 135 mcg or Peginterferon α-2b 180 mcg at a ratio of 1:2, and all subjects will go through a target treatment period (Weeks 1 \~ Week 48), an extension treatment period (Weeks 49 \~ Week 96) and a follow-up period (Weeks 97 \~ Week 100). Pharmacokinetics, safety, efficacy will be evaluated.

Gender: All

Ages: 18 Years - Any

Updated: 2025-11-17

Essential Thrombocythemia
RECRUITING

NCT05031897

Two Step Haplo With Radiation Conditioning

This phase II clinical trial evaluates whether a modified modality of conditioning reduces treatment-related mortality (TRM) in patients who undergo a hematopoietic stem cell transplant (HSCT) for a hematological malignancy. HSCT is a curative therapy for many hematopoietic malignancies, however this regimen results in higher rates of TRM than other forms of treatment. In recent years, less intense conditioning regimens with radiation and chemotherapy prior to HSCT have been developed. Radiation therapy uses high energy sources to kill cancer cells and shrink tumors while chemotherapy drugs like fludarabine and cyclophosphamide work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. This study evaluates whether a two-step approach with lower-intensity regimens of these treatments prior to HSCT reduces the rate of TRM.

Gender: All

Ages: 18 Years - Any

Updated: 2025-10-30

1 state

Acute Lymphoblastic Leukemia
Acute Myeloid Leukemia
Adult T-Cell Leukemia/Lymphoma
+14
RECRUITING

NCT06378437

A Study of GLB-001 in Patients With Myeloid Malignancies

Study GLB-001-02 is a phase 1, open-label clinical study to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and preliminary efficacy of GLB-001 in study participants with relapsed or refractory or intolerant myeloid malignancies including polycythemia vera (PV), essential thrombocythemia (ET), myelofibrosis (MF), lower-risk myelodysplastic syndrome (LR-MDS), higher-risk myelodysplastic syndromes (HR-MDS), and acute myeloid leukemia (AML). This study consists of 3 parts, dose escalation (Phase 1a), dose exploration (Phase 1b) and dose expansion (Phase 1c). Dose escalation (Phase 1a) and dose exploration (Phase 1b) will evaluate the safety, tolerability, PK, PD and preliminary efficacy of GLB-001, administered orally, in study participants with PV/ET, or study participants with MF/LR-MDS/HR-MDS/AML, respectively. Dose expansion (Phase 1c) will be followed to determine the relationships among dose, exposure, toxicity, tolerability and clinical activity, to identify minimally active dose, and to select the recommended dose(s) for phase 2 study. Approximately 108 study participants may be enrolled in the study.

Gender: All

Ages: 18 Years - Any

Updated: 2025-08-19

12 states

Polycythemia Vera
Essential Thrombocythemia
Myelofibrosis
+3
ACTIVE NOT RECRUITING

NCT05482971

A Single-arm, Multicenter Study to Assess the Efficacy, Safety, and Tolerability of P1101 in Adults With ET

A Single-arm, Multicenter Study to Assess the Efficacy, Safety, and Tolerability of Ropeginterferon alfa-2b-njft (P1101) in Adult Patients with Essential Thrombocythemia

Gender: All

Ages: 18 Years - Any

Updated: 2025-08-13

23 states

Essential Thrombocythemia
ACTIVE NOT RECRUITING

NCT04285086

Ropeginterferon Alfa-2b (P1101) vs. Anagrelide in Essential Thrombocythemia Patients With Hydroxyurea Resistance or Intolerance

This is a Phase 3 open-label, multicenter, randomized, active-controlled study designed to compare the efficacy and safety and tolerability of P1101 compared with ANA after 12 months of treatment as second-line therapy for subjects with ET who have had a suboptimal or failed response to HU.

Gender: All

Ages: 18 Years - Any

Updated: 2025-08-13

31 states

Essential Thrombocythemia
RECRUITING

NCT05025488

Mutant CALR-peptide Based Vaccine in Patients With Mutated CALR Myeloproliferative Neoplasm

The primary objective of this study is to assess the safety and tolerability of administrating mutated-CALR peptide Vaccine to patients with MPN. The researchers plan to enroll 10 patients over a 12 month period. Maximum length of participation in 80 weeks. Patients will be asked to complete questionnaires, bone marrow biopsies, research lab collection, and standard of care lab draw. This research will be taking place only at The Mount Sinai Hospital, specifically at the Ruttenberg Treatment Center.

Gender: All

Ages: 18 Years - Any

Updated: 2025-04-06

1 state

Myelofibrosis
Essential Thrombocythemia
MPN
RECRUITING

NCT06734637

Efficacy and Safety of Peginterferon in ET and PV.

This is a single-arm, single-center study aims to recruit 40 participants with Essential Thrombocythemia (ET) and Polycythemia Vera (PV). Eligible participants will receive a subcutaneous injection of Peginterferon α-2b 180 mcg once a week and follow-up,and efficacy and safety will be evaluated.

Gender: All

Ages: 18 Years - Any

Updated: 2024-12-16

1 state

Essential Thrombocythemia
Polycythemia Vera
RECRUITING

NCT02760238

Myeloproliferative Neoplasms (MPNs) Patient Registry

The mandate of this MPN registry is to collect clinical information, including molecular results, from consenting patients with a variety of MPNs at different time points during the course of their disease.

Gender: All

Updated: 2024-08-27

1 state

Primary Myelofibrosis
Polycythemia Vera
Essential Thrombocythemia
+7
RECRUITING

NCT02897297

Myeloproliferative Neoplastic Diseases Observatory From Brest

All patients diagnosed or followed in Brest University Hospital for Philadelphia negative myeloproliferative neoplasms will be included in this observational study. Myeloproliferative neoplasms recorded included: polycythemia vera, essential Thrombocythemia and Primary Myelofibrosis. This is a not interventional study. Alive patients need to sign a non-opposition consent form. Patients will be followed until last news (death, change of reference centre...).

Gender: All

Updated: 2024-08-12

Polycythemia Vera
Essential Thrombocythemia
Primary Myelofibrosis
RECRUITING

NCT05882773

Asian Myeloproliferative Neoplasm (MPN) Registry

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

Gender: All

Ages: 18 Years - Any

Updated: 2023-05-31

Myeloproliferative Neoplasm
Polycythemia Vera
Essential Thrombocythemia
+5