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Safety and Efficacy of Retifanlimab (INCMGA00012) Alone or in Combination With Other Therapies in Participants With Advanced or Metastatic Endometrial Cancer Who Have Progressed on or After Platinum-based Chemotherapy.

Trial Status: Active

This is a multicenter, open-label, nonrandomized, Phase 2 umbrella study of retifanlimab in participants who have advanced or metastatic endometrial cancer that has progressed on or after platinum-based chemotherapy. retifanlimab will be administered as monotherapy or in combination with other immunotherapy or targeted agents.

Inclusion Criteria

  • Ability to comprehend and willingness to sign a written ICF for the study. Women 18 years of age or older (or as applicable per local country requirements).
  • Histologically confirmed diagnosis of advanced or metastatic endometrial cancer with disease progression on or after treatment with at least 1 platinum-containing regimen for advanced or metastatic disease.
  • Groups A and B: Have not been previously treated with a PD-(L)1 inhibitor.
  • Group A only: Tumor tissue tested as MSI-High
  • Group B only: Tumor tissue tested as deficient MMR or an ultra-mutated POLE tumor.
  • Group D only: Tumor tissue tested as having an FGFR 1,2,3 mutation or alteration characterized as per protocol.
  • Must have at least 1 measurable tumor lesion per RECIST v1.1.
  • Willing to provide tumor tissue sample (fresh or archived).
  • ECOG performance status 0 to 1.
  • Willingness to avoid pregnancy.

Exclusion Criteria

  • Group A only: Histologically confirmed diagnosis of carcinosarcoma of the uterus.
  • Histologically confirmed diagnosis of sarcoma of the uterus.
  • Has disease eligible for potentially curative treatment.
  • Receipt of anticancer therapy within 28 days of the first administration of study treatment, with the exception of localized radiotherapy.
  • Toxicity of prior therapy that has not recovered to ≤ Grade 1 or baseline unless approved by the medical monitor.
  • Groups C and D (combinations): limiting immune-related toxicity during prior checkpoint inhibitor therapy.
  • Has an active autoimmune disease requiring systemic immunosuppression with corticosteroids (> 10 mg/day of prednisone or equivalent) or immunosuppressive drugs within 14 days before the first dose of study treatment.
  • Receiving chronic systemic steroids (> 10 mg/day of prednisone or equivalent):
  • Known active CNS metastases and/or carcinomatous meningitis.
  • Has known active hepatitis B or C.
  • Has received a live vaccine within 28 days of the planned start of study treatment.
  • Evidence of interstitial lung disease or active, noninfectious pneumonitis.
  • Participants who are known to be HIV-positive with some protocol exceptions.


Wayne State University / Karmanos Cancer Institute

North Carolina

Chapel Hill
UNC Lineberger Comprehensive Cancer Center


Ohio State University Comprehensive Cancer Center

Trial Phase Phase II

Trial Type Treatment

Lead Organization
Incyte Corporation

  • Primary ID INCMGA 0012-204
  • Secondary IDs NCI-2020-07409
  • ID NCT04463771