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ClinicalTrials.gov 10 recruiting now official registry

Polycythemia Vera clinical trials

Every US clinical trial registered for Polycythemia Vera — phase mix, recruiting status, and the sponsors running them, straight from the NIH ClinicalTrials.gov registry.

23 US clinical trials · 10 currently recruiting

The research picture

Polycythemia Vera has 23 registered US clinical trials, 10 of them open to new participants right now — about 43% of the total.

10
recruiting participants now
43%
of trials open to enrollment
5
in Phase 3–4 (later-stage)
3
top sponsor: National Cancer Institute (NCI)

Counts reflect the public ClinicalTrials.gov registry as last mirrored by PlainTrial. Status and phase are reported by each study's sponsor. This is reference information, not medical advice.

Active & Recent Trials

RECRUITING 5,000 participants

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

MPN Research Foundation

NCT07362225

RECRUITING 678 participants

A ELN-Multicenter Study on Phenotypic Evolution and Clinical Outcomes

FROM- Fondazione per la Ricerca Ospedale di Bergamo- ETS

NCT07203768

RECRUITING Phase 3 400 participants

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

Merck Sharp & Dohme

NCT06351631

RECRUITING Phase 3 220 participants

Study on Efficacy and Safety of Givinostat Versus Hydroxyurea in Patients With Polycythemia Vera

Italfarma

NCT06093672

RECRUITING Phase 2 62 participants

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

National Cancer Institute (NCI)

NCT06661915

RECRUITING Phase 2 60 participants

Ruxolitinib in Thrombocythemia and Polycythemia Vera

Massachusetts General Hospital

NCT04644211

RECRUITING Phase 2 30 participants

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

University of Southern California

NCT06063486

RECRUITING Phase 1 27 participants

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

University of California, Irvine

NCT05123365

RECRUITING Phase 2 25 participants

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

University of Washington

NCT04282187

RECRUITING Phase 1 24 participants

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

Fox Chase Cancer Center

NCT06218628

ACTIVE NOT RECRUITING Phase 3 293 participants

A Phase 3 Study of Rusfertide in Patients With Polycythemia Vera

Protagonist Therapeutics

NCT05210790

ACTIVE NOT RECRUITING Phase 3 111 participants

A Study to Assess Efficacy, Safety, and Tolerability of P1101 in Adult Patients With PV

PharmaEssentia

NCT05481151

ACTIVE NOT RECRUITING Phase 1 69 participants

Study to Assess SLN124 in Patients With Polycythemia Vera

Silence Therapeutics

NCT05499013

ACTIVE NOT RECRUITING Phase 3 46 participants

Study to Evaluate the Long-term Safety of Rusfertide (PTG-300) in Subjects With Polycythemia Vera

Protagonist Therapeutics

NCT06033586

ACTIVE NOT RECRUITING Phase 2 25 participants

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

National Cancer Institute (NCI)

NCT03289910

ACTIVE NOT RECRUITING Phase 2 4 participants

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

Terrence J Bradley, MD

NCT04262141

COMPLETED Phase 1 154 participants

Open Label Ruxolitinib (INCB018424) in Patients With Myelofibrosis and Post Polycythemia Vera/Essential Thrombocythemia Myelofibrosis

Incyte Corporation

NCT00509899

COMPLETED Phase 1 100 participants

Study of LY2784544 Testing Alternative Dosing in Participants With Myeloproliferative Neoplasms

Eli Lilly and Company

NCT01520220

COMPLETED Phase 1 60 participants

TGR-1202 + Ruxolitinib PMF PPV-MF PET-MF MDS/MPN Polycythemia Vera Resistant to Hydroxyurea

Vanderbilt-Ingram Cancer Center

NCT02493530

COMPLETED Phase 2 39 participants

Open-Label Study of Oral CEP-701 (Lestaurtinib) in Patients With Polycythemia Vera or Essential Thrombocytosis

Cephalon

NCT00586651

COMPLETED Phase 2 35 participants

Tipifarnib in Treating Patients With Myelofibrosis and Myeloid Metaplasia

National Cancer Institute (NCI)

NCT00047190

COMPLETED 17 participants

Familial Myeloproliferative Disorders

Icahn School of Medicine at Mount Sinai

NCT00666289

COMPLETED 8 participants

Molecular Changes and Biomarkers in Chronic Myeloproliferative Disorders

National Institutes of Health Clinical Center (CC)

NCT00433862

Phase Distribution

PhaseTrial count
Phase 1 6
Phase 2 8
Phase 3 5

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

Reading the Polycythemia Vera Trial Landscape

ClinicalTrials.gov lists 23 US studies indexed under Polycythemia Vera, and 10 of those are currently open to recruitment — roughly 43% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

The phase distribution for Polycythemia Vera shows 5 late-stage studies (Phase 3 and Phase 4 combined) alongside 14 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

Top sponsor activity for Polycythemia Vera is led by National Cancer Institute (NCI) with 3 indexed trials, alongside 9 other organizations in the top contributor list. The list on this page surfaces up to 23 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Polycythemia Vera?

PlainTrial tracks 23 US clinical trials for Polycythemia Vera, of which 10 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Polycythemia Vera?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Related

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

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