ATRN-119 in Combination With Decitabine in Patients With TP53-Mutated AML or Higher-Risk MDS

Trial statusNot yet recruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorWashington University School of Medicine

About this trial

This is a single-center, open-label, phase I study with dose escalation and dose expansion testing the combination of ATRN-119 and decitabine in patients with TP53-mutated acute myeloid leukemia (AML) or higher-risk myelodysplastic syndrome (HR-MDS). The dose escalation phase will enroll patients with previously untreated, relapsed, or refractory AML or HR-MDS, regardless of TP53 alteration status, with the primary objective of determining safety and tolerability of ATRN-119 plus decitabine. The dose expansion phase will only enroll patients with previously untreated AML or HR-MDS with a TP53 alteration, with the primary objective of identifying the recommended phase 2 dose (RP2D).

Eligibility criteria

Qualifiers

Diagnosis of AML or higher-risk MDS (HR-MDS) according to the World Health Organization (WHO) 5th Edition or International Consensus Classification (ICC) 2022 criteria.

IPSS-R (score > 3.5) or IPSS-M (score > 0.5) OR ii.≥ 10% bone marrow blasts

Previously untreated AML with ELN 2022 adverse-risk genetic features based on local testing, in patients who are ineligible for intensive induction chemotherapy (cytarabine plus an anthracycline) due to age, comorbidities, or performance status.

Previously untreated HR-MDS

Disqualifiers

Dose Expansion ONLY - Prior therapy for AML, HR-MDS, antecedent MDS, or antecedent myeloproliferative neoplasm (MPN) with the exception of erythropoiesis-stimulating agents, hematopoietic growth factors (e.g., G-CSF, thrombopoietin receptor agonists), hydroxyurea, luspatercept, imetelstat, all-trans retinoic acid (ATRA), and leukapheresis.

Active CNS involvement by AML requiring therapeutic intervention.

Active graft-versus-host disease (GVHD) requiring systemic immunosuppressive therapy except for low-dose steroids (prednisone ≤ 10 mg per day or other steroid equivalent)

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

  • ATRN-119
  • Decitabine

Treatment groups

27 Participants
are divided into 4 treatment groups

Sponsors and collaborators

Washington University School of Medicine

Lead sponsor

Aprea Therapeutics

Collaborator

National Cancer Institute (NCI)

Collaborator