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Ruxolitinib (INCB018424) in Subjects With Primary Myelofibrosis, Post Essential Thrombocythemia-myelofibrosis and Post Polycythemia Vera-myelofibrosis

This study is currently recruiting participants. (see Contacts and Locations)
Verified May 2017 by Incyte Corporation
Information provided by (Responsible Party):
Incyte Corporation Identifier:
First received: May 4, 2011
Last updated: May 12, 2017
Last verified: May 2017
To evaluate the effects of treatment with ruxolitinib (INCB018424) on spleen volume, symptoms and potential side effects in patients with PMF, PPV-MF and PET-MF who have platelet counts of 50 x 10^9/L to 100 x 10^9/L. It is anticipated that individualized dose optimization from the starting ruxolitinib level of 5 mg bid will be associated with reductions in splenomegaly, MF-associated symptoms and inflammatory cytokine levels.

Condition Intervention Phase
Primary Myelofibrosis
Post Essential Thrombocythemia-myelofibrosis
Post Polycythemia Vera-myelofibrosis
Drug: Ruxolitinib (INCB018424)
Phase 2

Access to an investigational treatment associated with this study is available outside the clinical trial.   More info ...

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: No masking
Primary Purpose: Treatment
Official Title: An Open Label Assessment of Safety and Efficacy of Ruxolitinib (INCB018424) in Subjects With Primary Myelofibrosis (PMF), Post Essential Thrombocythemia-myelofibrosis (PPV-MF) and Post Polycythemia Vera-myelofibrosis (PET-MF) Who Have Platelet Counts of 50 x 10^9/L to 100 x 10^9/L

Resource links provided by NLM:

Further study details as provided by Incyte Corporation:

Primary Outcome Measures:
  • Measure spleen volume changes in patients with PMF, PPV-MF and PET-MF [ Time Frame: Measured at baseline and Week 24 ]

Secondary Outcome Measures:
  • Establish adequate dose of INCB018424 in patients with low platelets [ Time Frame: Baseline, every four weeks through Week 24, thereafter every 12 weeks until study completion at week 156. ]

Estimated Enrollment: 150
Study Start Date: June 2011
Estimated Study Completion Date: September 2020
Estimated Primary Completion Date: February 2018 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Ruxolitinib (INCB018424) Drug: Ruxolitinib (INCB018424)
Ruxolitinib (INCB018424), 5 mg bid


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Diagnosed with PMF, PPV-MF or PET-MF as confirmed by bone marrow biopsy
  • Discontinuation of all drugs used to treat underlying MF disease at least 7 days prior to baseline visit
  • INR < 1.5 or PTT value < 1.5 x upper limit of normal (ULN) at study entry
  • Hemoglobin level at least 6.5 g/dL at Screening visit
  • Willingness to be transfused to treat low hemoglobin levels

Exclusion Criteria:

  • Females who are pregnant, unable to comply with birth control use to avoid becoming pregnant or breastfeeding
  • Males who cannot comply with birth control use to avoid fathering a child
  • Platelet count < 50 x10^9/L or absolute neutrophil count (ANC) < 1 x10^9/L at the Screening visit
  • Inadequate liver or renal function; Intracranial bleeds or invasive malignancy over the previous 2 years - international normalized ratio (INR) laboratory values cannot be > 1.5 x upper limit of normal at study entry.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01348490

Contact: Incyte Corporation Call Center 1.855.463.3463

  Show 38 Study Locations
Sponsors and Collaborators
Incyte Corporation
Study Director: Peter Langmuir, MD Incyte Corporation
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Incyte Corporation Identifier: NCT01348490     History of Changes
Other Study ID Numbers: INCB18424-258
Study First Received: May 4, 2011
Last Updated: May 12, 2017

Keywords provided by Incyte Corporation:

Additional relevant MeSH terms:
Primary Myelofibrosis
Thrombocythemia, Essential
Polycythemia Vera
Myeloproliferative Disorders
Bone Marrow Diseases
Hematologic Diseases
Blood Coagulation Disorders
Blood Platelet Disorders
Hemorrhagic Disorders processed this record on May 24, 2017