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Oral Pacritinib Versus Best Available Therapy to Treat Myelofibrosis

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ClinicalTrials.gov Identifier: NCT01773187
Recruitment Status : Terminated
First Posted : January 23, 2013
Last Update Posted : December 16, 2016
Information provided by (Responsible Party):
CTI BioPharma

Brief Summary:
The primary hypothesis of the study is that treatment with pacritinib results in a greater proportion of patients achieving ≥ 35% reduction in spleen volume from baseline to Week 24 than treatment with BAT.

Condition or disease Intervention/treatment Phase
Primary Myelofibrosis Post-polycythemia Vera Myelofibrosis Post-essential Thrombocythemia Myelofibrosis Drug: Pacritinib Drug: Best Available Therapy Phase 3

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 327 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Randomized Controlled Phase 3 Study of Oral Pacritinib Versus Best Available Therapy in Patients With Primary Myelofibrosis, Post-Polycythemia Vera Myelofibrosis, or Post-Essential Thrombocythemia Myelofibrosis
Study Start Date : December 2012
Primary Completion Date : January 2015
Study Completion Date : June 2016

Arm Intervention/treatment
Experimental: Pacritinib
Pacritinib 400 mg taken orally, once daily
Drug: Pacritinib
Active Comparator: Best Available Therapy
BAT includes any physician-selected treatment for PMF, PPV-MF, or PET-MF with the exclusion of JAK inhibitors (inhibitors of Janus kinases). For example, BAT may include hydroxyurea, glucocorticoids, erythropoietic agents, immunomodulatory agents, mercaptopurine, danazol, interferons, cytarabine, melphalan, or other agents.
Drug: Best Available Therapy

Primary Outcome Measures :
  1. Efficacy [ Time Frame: Baseline to Week 24 ]
    To compare the efficacy of pacritinib with that of best available therapy (BAT) in patients with primary myelofibrosis (PMF), post-polycythemia vera myelofibrosis (PPV-MF), or post-essential thrombocythemia myelofibrosis (PET-MF); the efficacy measure for this analysis is the proportion of patients achieving a ≥ 35% reduction in spleen volume from baseline to week 24 by magnetic resonance imaging (MRI) or computed tomography (CT)

Secondary Outcome Measures :
  1. Symptomatic Efficacy [ Time Frame: Baseline to week 24 ]
    To compare pacritinib with best available therapy with respect to the proportion of patients with >= 50% reduction in total score from baseline to week 24 on the Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF TSS)

Information from the National Library of Medicine

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

Inclusion Criteria:

  • Intermediate -1 or -2 or high-risk Myelofibrosis (per Passamonti et al 2010)
  • Palpable splenomegaly ≥ 5 cm on physical examination
  • Total Symptom Score >13 on the MPN-SAF TSS 2.0, not including the inactivity question
  • Patients who are platelet or red blood cell transfusion-dependent are eligible
  • Adequate white blood cell counts (with low blast counts), liver function, and renal function
  • No spleen radiation therapy for 6-12 months
  • Last therapy for myelofibrosis was 2-4 weeks ago, including any erythropoietic or thrombopoietic agent
  • Not pregnant, not lactating, and agree to use effective birth control

Exclusion Criteria:

  • Prior treatment with a JAK2 inhibitor
  • History of (or plans to undergo) spleen removal surgery or allogeneic stem cell transplant
  • Ongoing gastrointestinal medical condition such as Crohn's disease, Inflammatory bowel disease, chronic diarrhea, or constipation
  • Cardiovascular disease, including recent history or currently clinically symptomatic and uncontrolled: congestive heart failure, arrhythmia, angina, QTc prolongation or other QTc risk factors, myocardial infarction
  • Other malignancy within last 3 years other than certain limited skin, cervical, prostate, breast, or bladder cancers
  • Other ongoing, uncontrolled illnesses (including HIV infection and active hepatitis A, B, or C), psychiatric disorder, or social situation that would prevent good care on this study
  • Life expectancy < 6 months

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01773187

  Show 81 Study Locations
Sponsors and Collaborators
CTI BioPharma
Study Director: James Dean, MD, PhD CTI BioPharma

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: CTI BioPharma
ClinicalTrials.gov Identifier: NCT01773187     History of Changes
Other Study ID Numbers: PERSIST-1 (PAC325)
First Posted: January 23, 2013    Key Record Dates
Last Update Posted: December 16, 2016
Last Verified: December 2016

Keywords provided by CTI BioPharma:
Post-Polycythemia Vera Myelofibrosis
Post-Essential Thrombocythemia Myelofibrosis
Primary Myelofibrosis
Polycythemia Vera
Thrombocythemia, Essential
Myeloproliferative Disorders
Bone Marrow Disease
Hematologic Diseases
Blood Platelet Disorders
Hemorrhagic Disorders
Myeloproliferative Neoplasm
Spleen volume

Additional relevant MeSH terms:
Primary Myelofibrosis
Polycythemia Vera
Thrombocythemia, Essential
Myeloproliferative Disorders
Bone Marrow Diseases
Hematologic Diseases
Bone Marrow Neoplasms
Hematologic Neoplasms
Neoplasms by Site
Blood Platelet Disorders
Blood Coagulation Disorders
Hemorrhagic Disorders