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A Study of Evorpacept (ALX148) With Venetoclax and Azacitidine for Acute Myeloid Leukemia (ASPEN-05)

Phase 1
Terminated
Conditions
Acute Myeloid Leukemia
AML, Adult
Interventions
Registration Number
NCT04755244
Lead Sponsor
ALX Oncology Inc.
Brief Summary

This Phase 1/2 clinical study will evaluate evorpacept (ALX148) in combination with venetoclax and azacitidine for the treatment of patients with acute myeloid leukemia (AML).

Detailed Description

The Phase 1 will consist of a dose escalation of evorpacept (ALX148) in combination with venetoclax and azacitidine to evaluate safety and tolerability, and to identify the recommended Phase 2 dose of evorpacept (ALX148) in combination with venetoclax and azacitidine. The Phase 2 will evaluate the efficacy of evorpacept (ALX148) in combination with venetoclax and azacitidine for patients with AML. While intended to be a Phase 1/2 clinical study, the study never moved forward to Phase 2.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
14
Inclusion Criteria
  • Cytologically or histologically confirmed diagnosis of relapsed/refractory or newly diagnosed AML per WHO 2016 classification.
  • Phase 1a: AML that is relapsed/refractory or that is previously untreated in patients not considered suitable for intensive induction therapy.
  • Phase 1b: AML that is relapsed/refractory after prior treatment with a HMA-based regimen.
  • Phase 2: Previously untreated AML in patients who are not considered suitable candidates for intensive induction therapy.
  • Adequate renal and liver function.
  • Age ≥18 years.
  • Adequate performance status.
Exclusion Criteria
  • In Phase 1a and 1b, patients that have undergone prior allo-HSCT must be at least 3 months post-HSCT, without uncontrolled graft-versus-host disease (GVHD). For Phase 2, patients that have undergone prior allo-HSCT are excluded.
  • Patients with newly diagnosed AML with favorable risk cytogenetics such as t(8;21), inv(16), or t(16;16) as per the NCCN Guidelines Version 3, 2019 for AML.
  • Patients with acute promyelocytic leukemia (APL).
  • Prior treatment with any anti-CD47 or anti-SIRPalpha (signal regulatory protein alpha) agent.
  • Known active viral infections, including hepatitis B and C, human immunodeficiency virus (HIV), acquired immunodeficiency syndrome (AIDS) related illness, or SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2).

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
evorpacept (ALX148) + venetoclax + azacitidinevenetoclaxPhase 1a: Participants will receive escalating doses of evorpacept (ALX148) in combination with venetoclax and azacitidine Phase 1b/2: Participants will receive evorpacept (ALX148) at the recommended Phase 2 dose in combination with venetoclax and azacitidine.
evorpacept (ALX148) + venetoclax + azacitidineazacitidinePhase 1a: Participants will receive escalating doses of evorpacept (ALX148) in combination with venetoclax and azacitidine Phase 1b/2: Participants will receive evorpacept (ALX148) at the recommended Phase 2 dose in combination with venetoclax and azacitidine.
evorpacept (ALX148) + venetoclax + azacitidineevorpaceptPhase 1a: Participants will receive escalating doses of evorpacept (ALX148) in combination with venetoclax and azacitidine Phase 1b/2: Participants will receive evorpacept (ALX148) at the recommended Phase 2 dose in combination with venetoclax and azacitidine.
Primary Outcome Measures
NameTimeMethod
Phase 1: Dose Limiting Toxicities (DLT)Up to 28 days

Number of participants with a DLT

Phase 2: Composite complete remission rate (CRc)Approximately 6 months

Number of participants achieving a complete remission (CR) and complete remission with incomplete hematologic recovery (CRi) per European LeukemiaNet (ELN) 2017 criteria

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (5)

Northwestern University Feinberg School of Medicine

🇺🇸

Chicago, Illinois, United States

Roswell Park Comprehensive Cancer Center

🇺🇸

Buffalo, New York, United States

Duke University Medical Center

🇺🇸

Durham, North Carolina, United States

Vanderbilt University Medical Center

🇺🇸

Nashville, Tennessee, United States

University of Texas MD Anderson Cancer Center

🇺🇸

Houston, Texas, United States

Northwestern University Feinberg School of Medicine
🇺🇸Chicago, Illinois, United States

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