Safety and Tolerability Study of Oral NS-018 in Patients With Primary Myelofibrosis (MF), Post-polycythemia Vera MF or Post-essential Thrombocythemia MF

February 10, 2022 updated by: NS Pharma, Inc.

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

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)

Study Overview

Detailed Description

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

Study Type

Interventional

Enrollment (Actual)

77

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Arizona
      • Scottsdale, Arizona, United States, 85259-5499
        • Mayo Clinic Scottsdale Recruiting
    • California
      • San Diego, California, United States, 92093-0698
        • UC San Diego Moores Cancer Center
    • Florida
      • Jacksonville, Florida, United States, 32224
        • Mayo Clinic, Jacksonville
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern University
      • Chicago, Illinois, United States, 60637
        • University of Chicago
    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Dana Farber Cancer Institute
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • University of Michigan
    • New York
      • New York, New York, United States, 10021
        • Weill Cornell Medical College
    • Texas
      • Houston, Texas, United States, 77030
        • MD Anderson Cancer Center, Department of Leukemia

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 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.

Exclusion Criteria:

  • 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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Intervention: Drug: NS-018
In Phase 1 part, subjects were treated with oral NS-018 at a dose of 75 - 400 mg once daily or 100 - 400 mg twice daily. In Phase 2 part, subjects were treated with oral NS-018 at a dose of 300 mg once daily.
Treatment will be administered continuously as oral daily therapy in cycles of 4 weeks in duration (28 day treatment cycles).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Part 1 and Part 2: Number of Subjects With Adverse Events and Serious Adverse Event
Time Frame: From screening to until study discontinuation (approximate 8 years 10 months)
AEs (non-serious, serious) as variables of safety and tolerability of NS-018 were assesed. The number of patients were presented as Overall summary of AEs including treatment-emergent AEs (TEAEs); Treatment-emergent SAEs; Drug-related TEAEs; Treatment-emergent AEs leading to permanent discontinuation of study drug; Hospitalization or prolongation of existing hospitalization; Death.
From screening to until study discontinuation (approximate 8 years 10 months)
Part 2: Number of Patient With Objective Response Using International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) and European Leukemia Net (ELN)
Time Frame: Cycle 7 Day 1 (duration of cycle was 4 weeks)
Six response categories are listed: complete remission (CR) and partial remission signify treatment effects that are consistent with disease modification, whereas drug-induced improvements in MF-symptomatic burden were annotated as clinical improvement, anemia response, spleen response, orsymptoms response. Additional criteria are provided for progressive disease, stable disease, and relapse. The objective response was defined as the number of patients with confirmed complete remission (CR) + partial response (PR) + clinical improvement (CI) during the treatment period.
Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 2: Change From Baseline in Spleen Size
Time Frame: From Baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Change from baseline in spleen size was assessed by magnetic resonance imaging (MRI) (computed tomography [CT] scan for patients not able to tolerate MRI).
From Baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 2: Change From Baseline in Bone Marrow Assessment
Time Frame: From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Bone marrow was assessed by aspiration and biopsy for grade changes in osteomyelofibrosis. Fibrosis was graded according to European Consensus Myelofibrosis Grading Criteria, ranging from grade 0, which corresponds to normal bone marrow, to grade 3, in which coarse bundles of collagen fibrosis are identifiable with significant osteosclerosis.
From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Part 1: Number of Patients With Objective Response Using International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT)
Time Frame: Cycle 7 Day 1 (duration of cycle was 4 weeks)
Six response categories are listed: complete remission (CR) and partial remission signify treatment effects that are consistent with disease modification, whereas drug-induced improvements in MF-symptomatic burden were annotated as clinical improvement, anemia response, spleen response, orsymptoms response. Additional criteria are provided for progressive disease, stable disease, and relapse. The objective response was defined as the number of patients with confirmed "complete remission (CR) + partial response (PR) + clinical improvement (CI)" during the treatment period.
Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 1: Change From Baseline in Spleen Size
Time Frame: From Baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Change from baseline in spleen size was assessed by palpation.
From Baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 1: Change From Baseline in Bone Marrow Assessment
Time Frame: From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Bone marrow was assessed by aspiration and biopsy for grade changes in osteomyelofibrosis. Fibrosis was graded according to European Consensus Myelofibrosis Grading Criteria, ranging from grade 0, which corresponds to normal bone marrow, to grade 3, in which coarse bundles of collagen fibrosis are identifiable with significant osteosclerosis.
From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 1: Change From Baseline in Quality of Life Assessments Using Myelofibrosis Symptom Assessment Form (MF-SAF)
Time Frame: From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
MF SAF is a 20-item instrument comprised of 4 subscales: 1) the Brief Fatigue Inventory [= average of 9 fatigue scores], 2) Splenomegaly associated symptoms [= average of 4 splenomegaly and associated scores], 3) Catabolic/proliferative Symptoms [= average of 3 catabolic/proliferative associated scores] and 4) Overall Quality of Life. The items were on a scale from 1 to 10 where 1= most favorable, and 10= least favorable.
From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 2: Change From Baseline in Quality of Life Assessments Using Myeloproliferative Neoplasm Symptom Assessment Form (MPN SAF (MPN 10)
Time Frame: From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Symptoms are evaluated by the MPN-SAF Total Symptom Score (TSS). The MPN-SAF TSS is assessed by the patients themselves and this includes fatigue, concentration, early satiety, inactivity, night sweats, itching, bone pain, abdominal discomfort, weight loss, and fevers. Scoring is from 0 (absent/as good as it can be) to 10 (worst imaginable/as bad as it can be) for each item. The MPN-SAF TSS is the summation of all the individual scores (0-100 scale). Symptoms response requires >50% reduction in the MPN-SAF TSS.
From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 1 and Part 2: Change in Baseline in Janus Kinase 2 (JAK2) V617F Allele Burden Levels
Time Frame: Part 1 and Part 2: From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
The JAK2 V617F allele burden mean changes from baseline (%) are presented as pharmacodynamics parameters.
Part 1 and Part 2: From baseline to Cycle 7 Day 1 (duration of cycle was 4 weeks)
Part 2: Change From Baseline in Phosphorylated Signal Transducer and Activator of Transcription 3 (Phospho-STAT3)
Time Frame: From Baseline to Pre-dose at Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 1 (duration of cycle was 4 weeks)

The Phospho-STAT3 mean changes from baseline (%) are presented as pharmacodynamics parameters.

For phospho-STAT3 values (Phase 2 only), study samples were incubated (± IL-6) and labeled with CD markers. Surface markers included CD3+ (CD4+ [helper T cells] and CD8+ [cytotoxic T cells]) and CD14+ (monocytes) to which intracellular phospho STAT3 was targeted. The levels of phospho-STAT3 in CD14+, CD3+CD4+ and CD3+CD8+ cell subtypes were quantified. Phosphorylated-STAT3 levels were evaluated in the cell types before and after IL-6 incubation (stimulation) and reported both as mean fluorescence intensity (MFI) and the percentage of positive cells. For each sample time point, the MFI was normalized to a fold change.

The fold change was calculated by MFI after IL-6 treatment/MFI before IL-6 treatment. The percent positive cells were normalized by subtracting the percent positive cells before IL-6 treatment from the percent positive cells after IL-6 treatment.

From Baseline to Pre-dose at Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 1 (duration of cycle was 4 weeks)
Part1 and Part 2: Observed Maximum Concentration (Cmax)
Time Frame: Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 1 Day 8, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 1 (duration of cycle was 4 weeks)
To determine the Cmax as pharmacokinetic parameters of NS-018.
Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 1 Day 8, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 1 (duration of cycle was 4 weeks)
Part 1 and Part 2: Time to Maximum Plasma Concentration (Tmax)
Time Frame: Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 1 Day 8, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1, Cycle 2 Day 1 (duration of cycle was 4 weeks)
To determine the Tmax as pharmacokinetic parameters of NS-018.
Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 1 Day 8, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1, Cycle 2 Day 1 (duration of cycle was 4 weeks)
Part1 and Part 2: Area Under the Plasma Concentration-time Curve (AUC0-24)
Time Frame: Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1 (duration of cycle was 4 weeks)
To determine the AUC0-24 as pharmacokinetic parameters of NS-018.
Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1 (duration of cycle was 4 weeks)
Part 1 and Part 2: Terminal Elimination Half-life (t½)
Time Frame: Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 1 Day 8, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1, Cycle 2 Day 1 (duration of cycle was 4 weeks)
To determine the t½ as pharmacokinetic parameters of NS-018.
Pre-dose, 0.5 to 24 hours post-dose for Part 1: Cycle 1 Day 1, Cycle 1 Day 8, Cycle 2 Day 1 and for Part 2: Cycle 1 Day 1, Cycle 2 Day 1 (duration of cycle was 4 weeks)
Part1 and Part 2: Accumulation Ratio (AR)
Time Frame: Part 1 and Part 2: Cycle 2 Day 1 (duration of cycle was 4 weeks)
To determine the AR as pharmacokinetic parameters of NS-018. AR was calculated as AR = (AUC0-24) Cycle 2 Day 1/ (AUC0-24) Cycle 1 Day 1.
Part 1 and Part 2: Cycle 2 Day 1 (duration of cycle was 4 weeks)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Srdan Verstovsek, M.D., Ph.D., MD Anderson Cancer Center, Houston, TX, 77030

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2011

Primary Completion (Actual)

April 22, 2020

Study Completion (Actual)

April 22, 2020

Study Registration Dates

First Submitted

August 15, 2011

First Submitted That Met QC Criteria

August 25, 2011

First Posted (Estimate)

August 26, 2011

Study Record Updates

Last Update Posted (Actual)

March 9, 2022

Last Update Submitted That Met QC Criteria

February 10, 2022

Last Verified

February 1, 2022

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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