Therapeutic RSK1 Targeting in Myelofibrosis

ConditionMyelofibrosis
Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorWashington University School of Medicine

About this trial

This is a phase Ib study evaluating PMD-026, an oral inhibitor of ribosomal protein S6 kinase A1 (RSK1), in participants with myelofibrosis (MF).The dose escalation portion utilizes a standard 3+3 design to evaluate two dose levels with an additional dose de-escalation portion to identify the recommended phase II dose (RP2D); subsequently, an additional 6 patients will be enrolled in the dose expansion portion evaluating the efficacy of PMD-026.

Eligibility criteria

Qualifiers

Histologically confirmed diagnosis of primary myelofibrosis, post-polycythemia vera myelofibrosis or post-essential thrombocythemia myelofibrosis in chronic phase, according to the 2016 WHO criteria

Patients must have had at least 1 prior JAK inhibitor treatment for a minimum of 12 weeks and their disease was determined resistant or refractory, and/or their response was lost or intolerant to treatment.

Intermediate-2 or High-risk MF, as defined by the Dynamic International Prognostic Scoring System (DIPSS).

Splenomegaly defined as estimated spleen volume of ≥450 cm3 by imaging with either MRI, CT or ultrasound, or a palpable spleen >=5 cm from the costal margin.

Disqualifiers

Prior allogeneic or autologous stem cell transplantation within the previous 12 months

Prior splenectomy

Prior splenic irradiation if < 3 months between last radiation and screening visit.

Prior or concurrent malignancy whose natural history has the potential to interfere with the safety or efficacy assessment of the investigational regimen. Patients with prior or concurrent malignancy that does NOT meet that definition are eligible for this trial.

Trial design

Treatments tested in this trial

  • PMD-026

Treatment groups

18 Participants
are divided into 4 treatment groups

Sponsors and collaborators

Washington University School of Medicine

Lead sponsor

Phoenix Molecular Designs

Collaborator

The Foundation for Barnes-Jewish Hospital

Collaborator

Swim Across America

Collaborator