for people ages 18 years and up (full criteria)
at San Diego, California and other locations
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