for people ages 18 years and up (full criteria)
study started
estimated completion



The purpose of this study is to determine the safety and tolerability of orally administered NS-018 in patients with Primary Myelofibrosis (PMF), Post-polycythemia Vera Myelofibrosis (post-PV MF), or Post-essential Thrombocythemia Myelofibrosis (post-ET MF)

Official Title

A Phase 1/2, Open-label, Dose-Escalation Multi-center Study to Assess the Safety, Tolerability, PK and PD of Orally Administered NS-018 in Patients With Primary Myelofibrosis (MF), Post-polycythemia Vera MF, or Post-essential Thrombocythemia MF


This is a Phase 1/2 study that is currently enrolling JAK2 failures into the Phase 2 portion of the study.


Primary Myelofibrosis Post-Polycythemia Vera Myelofibrosis Post-Essential Thrombocythemia Myelofibrosis Keywords provided by NS Pharma, Inc.: JAK2 kinase inhibitor NS-018 Myeloproliferative Neoplasms Additional relevant MeSH terms: Bone Marrow Diseases Hematologic Diseases Polycythemia Vera Thrombocythemia, Essential PMF post-PV MF post-ET MF Polycythemia Thrombocytosis


You can join if…

Open to people ages 18 years and up

  • Primary myelofibrosis, post-PV MF, or post-ET MF that requires therapy
  • MF patients must have received prior JAK2 inhibitor therapy, and been found to be intolerant, or refractory/relapsed from prior JAK2 inhibitor therapy, based on investigator assessment
  • ≥18 years old
  • ECOG Performance Status of ≤ 3
  • Estimated life expectancy of ≥12 weeks
  • Male or non-pregnant, non-lactating female patients
  • Serum creatinine of ≤1.5 × the upper limit of normal (ULN)OR estimated creatinine clearance (CrCl) ≥ 40 ml/min/1.73 m2
  • Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤3 × the upper limit of normal (ULN) and total bilirubin ≤1.5 × ULN. If the total bilirubin is elevated between 1.5 x and 3 x ULN, patients with a direct bilirubin ≤ 1.5 X ULN are eligible during the Phase II portion.
  • Absolute neutrophil count (ANC) >1000/μL and Platelet count > 25,000/μL
  • QTcB ≤ 480 msec
  • No MF-directed treatment for at least 2 weeks prior to initiation of NS-018, including any use of corticosteroids for Myelofibrosis symptom or blood count management. Low dose corticosteroids ≤ 10 mg/day prednisone or equivalent is allowed for non-myelofibrosis purposes.

You CAN'T join if...

  • Active, uncontrolled systemic infection
  • Patients with any unresolved toxicity greater than Grade 1 from previous anticancer therapy
  • Potentially curative therapy is available
  • Currently taking medication that is substantially metabolized by cytochrome P450 (CYP) 1A2 or CYP3A4 or taking medication known to be strong inhibitors or inducers of CYP3A4
  • Patients with a serious cardiac condition within the past 6 months
  • Pregnant or lactating
  • Radiation therapy for splenomegaly within 6 months prior to study entry
  • Splenectomy (Phase 2 portion of the study only)
  • Known HIV positive status
  • Known active hepatitis, a history of viral hepatitis B or hepatitis C


  • UC San Diego Moores Cancer Center
    San Diego California 92093-0698 United States
  • Mayo Clinic Scottsdale Recruiting
    Scottsdale Arizona 85259-5499 United States


in progress, not accepting new patients
Start Date
Completion Date
NS Pharma, Inc.
Phase 1/2
Study Type
Last Updated