Study of Navtemadlin add-on to Ruxolitinib in JAK Inhibitor-Naïve Patients With Myelofibrosis Who Have a Suboptimal Response to Ruxolitinib

a study on Myelofibrosis Post-PV MF Post-ET Myelofibrosis Primary Myelofibrosis

Summary

Eligibility
for people ages 18 years and up (full criteria)
Location
at UCLA UCSD
Dates
study started
study ends around

Description

Summary

This clinical trial is evaluating whether addition of navtemadlin to ruxolitinib treatment will provide more clinical benefit than ruxolitinib alone for patients with Myelofibrosis who have a suboptimal response to ruxolitinib treatment alone.

Subjects will start by receiving ruxolitinib alone in the run-in period. Those who demostrate a suboptimal response from ruxolitinib alone will then be randomized 2:1 to receive navtemadlin or navtemadlin placebo as add-on treatment to their ongoing ruxolitinib. Randomized means that subjects will be assigned to a group by chance, like a flip of a coin. The study is blinded, meaning the subjects, doctors, central endpoint assessors and sponsor will not know which add on treatment (navtemadlin or navtemadlin placebo) the subject is receiving.

Official Title

A Phase 3, Randomized, Double-blind, Add-on Study Evaluating the Safety and Efficacy of Navtemadlin Plus Ruxolitinib vs Placebo Plus Ruxolitinib in JAK Inhibitor-Naïve Patients With Myelofibrosis Who Have a Suboptimal Response to Ruxolitinib

Keywords

Myelofibrosis, Post-PV MF, Post-ET Myelofibrosis, Primary Myelofibrosis, MF, Navtemadlin, KRT-232, Ruxolitinib, POIESIS, TP53, Suboptimal response, Sub-optimal response, navtemadlin; 2-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((S)-1-(isopropylsulfonyl)-3-methylbutan-2-yl)-3-methyl-2-oxopiperidin-3-yl)acetic acid

Eligibility

You can join if…

Open to people ages 18 years and up

for Ruxolitinib Alone Period:

  • Confirmed diagnosis of PMF, post-PV MF, or post-ET MF, as assessed by the treating physician according to the World Health Organization (WHO) criteria
  • High, Intermediate-1, Intermediate-2 risk category International Prognosis System Score (IPSS)
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2
  • JAK-inhibitor treatment naive

You CAN'T join if...

for Ruxolitinib Alone Period:

  • Prior Splenectomy
  • Splenic irradiation within 3 months prior to the first dose
  • Prior BCL-XL, BET, MDM2, PI3K, PIM, or XPO1 inhibitors therapy or p53-directed therapy
  • Eligible for Bone Marrow Transplant
  • Peripheral blood or bone marrow blast count ≥ 10 percent

Inclusion Criteria for Randomized Period:

  • PMF, post-PV MF, or post-ET MF that is TP53WT as assessed by central testing
  • ECOG performance status of 0 to 2
  • Treatment with a stable dose of ruxolitinib
  • Suboptimal response to run-in ruxolitinib treatment

Exclusion Criteria for Randomized Period:

  • Elevated white blood cell count that doubles (or more) during ruxolitinib treatment and exceeds 50 × 109/L
  • Peripheral blood or bone marrow blast count ≥ 10 percent

Locations

  • UC San Diego Moores Cancer Center accepting new patients
    La Jolla 5363943 California 5332921 92037 United States
  • UCLA Hematology/Oncology Clinic - Los Angeles accepting new patients
    Los Angeles 5368361 California 5332921 90095 United States
  • The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center accepting new patients
    Torrance 5403022 California 5332921 90502 United States
  • Scripps Health, Prebys Cancer Center accepting new patients
    San Diego 5391811 California 5332921 92103 United States

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Kartos Therapeutics, Inc.
ID
NCT06479135
Phase
Phase 3 research study
Study Type
Interventional
Participants
Expecting 600 study participants
Last Updated