ENVASARC: Envafolimab And Envafolimab With Ipilimumab In Patients With Undifferentiated Pleomorphic Sarcoma Or Myxofibrosarcoma

Purpose

This is a multicenter open-label, randomized, non-comparative, parallel cohort pivotal study of treatment with envafolimab (cohort A and C) or envafolimab combined with ipilimumab (cohort B and D) in patients with locally advanced, unresectable or metastatic undifferentiated pleomorphic sarcoma (UPS)/myxofibrosarcoma (MFS) who have progressed on one or two lines of chemotherapy.

Conditions

  • Undifferentiated Pleomorphic Sarcoma
  • Myxofibrosarcoma

Eligibility

Eligible Ages
Over 12 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Histologically confirmed locally advanced or metastatic undifferentiated pleomorphic sarcoma (UPS) or grade ≥ 2 myxofibrosarcoma (MFS) - Documented progression following systemic chemotherapy - At least one measurable lesion - Eastern Cooperative Oncology Group performance status of 0 or 1 - Adequate hematologic and organ function

Exclusion Criteria

  • More than two prior lines of chemotherapy for UPS/MFS - Prior immune checkpoint inhibitor or immunomodulatory therapy - Active autoimmune disease that has required systemic treatment - Major surgery within 4 weeks of dosing of investigational agent - Active additional malignancy - Pericardial effusion, pleural effusion, or ascites - Central nervous system metastases and/or carcinomatous meningitis - Active hepatitis or cirrhosis - Interstitial lung disease - Unwilling to apply highly effective contraception during the study - Other concurrent severe and/or uncontrolled medical conditions that would, in the investigator's judgment, contraindicate patient participation in the clinical study

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Cohort A
Patients treated with 300 mg of single agent envafolimab every three weeks
  • Biological: Envafolimab
    PD-L1 single domain antibody for subcutaneous injection.
    Other names:
    • KN035
Experimental
Cohort B
Patients treated with envafolimab in combination with ipilimumab. Envafolimab will be given at 300 mg every three weeks. Ipilimumab will be given at 1 mg/kg every three weeks for a total of four doses.
  • Biological: Envafolimab
    PD-L1 single domain antibody for subcutaneous injection.
    Other names:
    • KN035
  • Drug: Ipilimumab
    CTLA-4 monoclonal antibody
    Other names:
    • Yervoy
Experimental
Cohort C
Patients treated with 600 mg of single agent envafolimab every three weeks
  • Biological: Envafolimab
    PD-L1 single domain antibody for subcutaneous injection.
    Other names:
    • KN035
Experimental
Cohort D
Patients treated with envafolimab in combination with ipilimumab. Envafolimab will be given at 600 mg every three weeks. Ipilimumab will be given at 1 mg/kg every three weeks for a total of four doses.
  • Biological: Envafolimab
    PD-L1 single domain antibody for subcutaneous injection.
    Other names:
    • KN035
  • Drug: Ipilimumab
    CTLA-4 monoclonal antibody
    Other names:
    • Yervoy

Recruiting Locations

Vanderbilt University
Nashville, Tennessee 37235

More Details

Status
Recruiting
Sponsor
Tracon Pharmaceuticals Inc.

Study Contact

Charles Theuer, MD, PhD
858-550-0780
clinicaltrials@traconpharma.com

Detailed Description

This is a multicenter open-label, randomized, non-comparative, parallel cohort pivotal study of treatment with envafolimab (cohort A and C) or envafolimab combined with ipilimumab (cohort B and D) in patients with locally advanced, unresectable or metastatic UPS/MFS who have progressed on one or two lines of chemotherapy. Patients were previously assigned at random into one of two cohorts: cohort A of 80 patients who received single agent envafolimab (300 mg every 3 weeks by subcutaneous (SC) injection) or cohort B of 80 patients who received envafolimab (300 mg every 3 weeks by SC injection) in combination with ipilimumab (1 mg/kg every 3 weeks intravenously for four doses). Following amendment #3, patients will be assigned at random into one of two cohorts: cohort C of 80 patients who will receive single agent envafolimab (600 mg every 3 weeks by subcutaneous (SC) injection) or cohort D of 80 patients who will receive envafolimab 600 mg every 3 weeks by SC injection) in combination with ipilimumab (1 mg/kg every 3 weeks intravenously for four doses).