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

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment25 people
  • Recruiting US sites1
  • SponsorUniversity of Washington
  • RegistryNCT04282187

Recruitment re-checked on ClinicalTrials.gov Oct 30, 2026. Public record; not medical advice.

Decitabine With Ruxolitinib, Fedratinib or Pacritinib for the Treatment of Accelerated/Blast Phase Myeloproliferative Neoplasms: a one-minute explainerNCT042821871 min

Eligibility

Who can join

The film gives the main points. The full list below is copied from the registry; the study team makes the final decision.

  • Age18 Years to no maximum
  • SexAll
  • Healthy volunteersNo

You may be able to join if

  • Age >= 18 years
  • History of MPN as defined by the 2016 World Health Organization criteria, with now pathologically confirmed >= 5% blasts in the bone marrow or peripheral blood. Prior MPNs could include polycythemia vera, essential thrombocythemia, primary myelofibrosis, secondary myelofibrosis, MPN unclassifiable, MDS/MPN overlap
  • Outside diagnostic material is acceptable as long as peripheral blood and/or bone marrow slides are reviewed at the study institution by pathology. Flow cytometric analysis of peripheral blood and/or bone marrow should be performed according to institutional practice guidelines
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-2 or Karnofsky >= 60%
  • Serum creatinine clearance >= 50 ml/min calculated by the Cockcroft-Gault Equation (assessed within 14 days of study day 1)
  • Total bilirubin =< 3 unless due to Gilbert's disease or hemolysis (total bilirubin > 3 is allowable if thought due to Gilbert's disease, hemolysis, or MPN disease) (assessed within 14 days of study day 1)
  • Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) < 3 x upper limit of normal (ULN) unless thought to be due to MPN disease process (AST/ALT > 3 is allowable if thought due to MPN disease) (assessed within 14 days of study day 1)
  • For patient receiving fedratinib, thiamine level should be above the laboratory lower limit of normal (>= 70 nmol/L in the University of Washington [UW]/Seattle Cancer Care Alliance [SCCA] lab). If it is low, it may be repleted but should be rechecked and demonstrated to normalize prior to initiation of therapy
  • Patient is considered a potential transplant candidate. The attending/treating physician will determine transplant candidacy at the time of consent
  • The use of hydroxyurea prior to study registration is allowed. Patients with symptoms/signs of hyperleukocytosis, white blood count (WBC) > 100,000/uL, or with concern for other complications of high tumor burden or leukostasis (e.g. hypoxia, disseminated intravascular coagulation) can be treated with leukapheresis or may receive up to 2 doses of cytarabine (up to 500 mg/m^2 /dose) anytime prior to enrollment
  • Capable of providing valid informed consent

You cannot join if

  • Previous treatment with chemotherapy (e.g. hypomethylating agents or cytarabine-based regimens) for MPN with >= 5% blasts in the blood or marrow. Prior temporary measures to control blood counts is allowed. Prior treatment with hydroxyurea, interferons or JAK inhibitor therapy is allowed
  • Active systemic fungal, bacterial, viral, or other infection, unless disease is under treatment with anti-microbials and/or controlled or stable (e.g. if specific, effective therapy is not available/feasible or desired [e.g. chronic viral hepatitis, human immunodeficiency virus (HIV)])
  • Known hypersensitivity to any study drug
  • Females who are pregnant or breastfeeding
  • Treatment with any other anti-MDS/leukemia investigational agent within 2 weeks of start of study drugs
  • For patients planning to receive fedratinib: concurrent use of strong and moderate CYP3A4 inducers or dual CYP3A4 and CYP2C19 inhibitors that cannot be discontinued
  • For patients planned to receive ruxolitinib AND platelets < 50,000/mm^2: concurrent use of a strong CYP3A4 inhibitor that cannot be discontinued
  • For patients planned to receive pacritinib, corrected QT interval (QTc) > 480 msec (changing of medications/supplementing electrolytes is allowed to determine if this helps QTc reduce to < 480 msec)
  • For patients planned to receive pacritinib, concurrent use of medications that are CYP1A2, CYP3A4, P-gp, BCRP, OCT1 substrates that cannot be discontinued

The treatment

How it is intended to work

This is how the treatment is meant to work. Whether it helps, and how safe it is, is what this trial is testing.

decitabine. A cytidine antimetabolite analogue with potential antineoplastic activity. Decitabine incorporates into DNA and inhibits DNA methyltransferase, resulting in hypomethylation of DNA and intra-S-phase arrest of DNA replication. NCI Drug Dictionary

Treatments listed in the registry

  • Decitabine (Drug): Given IV
  • Ruxolitinib (Drug): Given PO
  • Fedratinib (Drug): Given PO
  • Questionnaire Administration (Other): Ancillary studies
  • Pacritinib (Drug): Given PO
  • Biospecimen Collection (Procedure): Undergo collection of blood and bone marrow samples

The study

Treatment groups

Na · Single Group · masking: None

Treatment (decitabine, ruxolitinib, fedratinib, pacritinib) (Experimental)

Patients receive decitabine IV QD over 1 hour on days 1-10, and either ruxolitinib PO BID, fedratinib PO daily, or pacritinib PO BID on days 1-28. Treatment repeats every 28 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood and bone marrow samples throughout the trial.

What it involves

Procedures

As the registry describes them. Requirements to join, such as a tissue sample, are in the eligibility list above even when on-study procedures are optional. Ask the study team which steps apply to you.

  • blood samples: Part of the study plan
  • questionnaires: Part of the study plan

Goals

What the study measures

Main goals

  • Proportion of patients enrolled who receive hematopoietic stem cell transplantation (HCT) (Up to 5 years)

Other goals

  • Time from diagnosis of myeloproliferative neoplasm (MPN)-accelerated phase (AP)/blast phase (BP) to day 0 of HCT
  • Remission rate
  • Overall survival
  • Relapse-free survival
  • Mutational profiling
  • Response rates regardless of transplant status
  • Overall survival regardless of transplant status
  • Relapse-free survival regardless of transplant status

Planned enrollment: 25 (estimated).

Where

Recruiting US sites

  • Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington

Site status as of Oct 30, 2026. Check the live record before contacting a site.

Sources

Where this comes from

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Sep 16, 2026. Public record; not medical advice.

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