Study of AU-007, A Monoclonal Antibody That Binds to IL-2 and Inhibits IL-2Rα Binding, in Patients With Unresectable Locally Advanced or Metastatic Cancer

NCT 05267626

Brief Summary

This is a first in human, open-label, multi-center Phase 1 / 2 study to evaluate the safety, tolerability, and initial efficacy of AU-007 in patients with advanced solid tumors. AU-007 will be administered either as a monotherapy, or in combination with a single loading dose of aldesleukin, or with both AU-007 and aldesleukin given every 2 weeks (Q2w). Once the recommended phase 2 dose (RP2D) of AU-007 plus aldesleukin is determined, AU-007 plus aldesleukin will also be administered with avelumab.

Intervention / Treatment 

  • Drug: AU-007
  • Drug: Aldesleukin
  • Drug: Avelumab

Inclusion Criteria

  • Measurable or non-measurable disease as per RECIST v1.1 criteria and documented by CT and/or MRI. In Cohort Expansion, patients with truly non-measurable only disease (e.g., ascites, pleural or pericardial effusion, organomegaly), are not eligible for enrollment
  • In Dose Escalation patients must have selected tumor types and have progressed after standard of care treatment, or be intolerant to treatment, or refused standard treatment
  • Part 2 includes but is not limited to:
  • Renal cell cancer progressing during or following at least two approved therapeutic regimens (e.g., small molecule inhibitors, anti-PDx therapy)
  • Cutaneous melanoma that is either locally unresectable or metastatic:
    • BRAF wild type: progressed after receiving PD-1 containing therapy with or without an anti-CTLA-4
    • BRAF mutation: patients who refused BRAF+MEK inhibitor
  • NSCLC: Unresectable locally advanced or metastatic PD-L1-positive (≥ 1%) NSCLC not harboring an activating EGFR mutation or ALK rearrangement and has progressed during or following treatment with an anti-PDx and platinum-based chemotherapy (unless ineligible for platinum therapy)
  • Part 3: NSCLC as described above
  • Female patients of childbearing potential must have a negative serum or urine pregnancy test performed within 72 hours prior to the initiation of study drug administration. Female patients of childbearing potential must be willing to use two forms of contraception throughout the study, starting with Screening through 60 days after the last dose of study drug. Abstinence is acceptable if this is the established and the preferred contraception method for the patient
  • Male patients with partners of childbearing potential must use barrier contraception from the time of consent through 60 days after discontinuation of study drug and must not donate sperm during this period. In addition, male patients should have their partners use contraception (as documented for female patients) for the same period of time
  • Patients who have previously received an immune checkpoint inhibitor (e.g., anti-PD-L1, anti-PD-1, anti-CTLA-4) prior to enrollment must have checkpoint inhibitor immune-related toxicity resolved to either Grade ≤ 1 or baseline (prior to the checkpoint inhibitor) to be eligible for enrollment. Patients who experienced previous checkpoint inhibitor-related hypothyroidism are eligible for the study regardless of grade resolution if well controlled on thyroid hormone replacement therapy
  • Symptomatic central nervous system (CNS) metastases must have been treated, be asymptomatic for ≥ 14 days, and meet the following at the time of enrollment:
    • No concurrent treatment for CNS disease (e.g., surgery, radiation, corticosteroids ≥ 10 mg prednisone/day or equivalent)
    • No concurrent leptomeningeal disease or cord compression

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