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Clinical Trial 20837

Cancer Type: Sarcoma
Study Type: Treatment
NCT#: NCT04480502

Phase: Phase II
Prinicipal Investigator: Mihaela Druta

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Study Title

Envasarc: A Pivitol Trial of Envafolimab, and Envafolimab in Combination with Ipilimumab, in Patients with Advanced or Metastatic Undifferentiated Pleomorphic Sarcoma or Myxofibrosarcoma Who Have Progressed on Prior Chemotherapy


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


- To determine objective response rate (ORR) by RECIST 1.1 by blinded independent central review (BICR) of envafolimab (cohort A), and of envafolimab combined with ipilimumab at 1 mg/kg (cohort B), in separate cohorts of patients with locally advanced, unresectable or metastatic UPS/MFS that has progressed following one or two lines of chemotherapy, without a formal statistical comparison between the two cohorts




Envafolimab (); Ipilimumab (); Yervoy (Ipilimumab)

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

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