New hope for advanced endometrial cancer: immunotherapy combo trial shows promise
NCT ID NCT04463771
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2 study tested a drug called retifanlimab, which helps the immune system attack cancer, either alone or combined with other targeted drugs. It enrolled 206 women with advanced or metastatic endometrial cancer that had worsened after platinum-based chemotherapy. The goal was to see if these treatments could shrink tumors or slow the disease.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- retifanlimab (a drug that helps the immune system fight cancer), sometimes combined with epacadostat, pemigatinib, INCAGN02385, or INCAGN02390
- What this could lead to
- If successful, this could point toward new treatment options for advanced endometrial cancer that has stopped responding to standard chemotherapy.
- What could go wrong
- This is a phase 2 study, so results are still early. The drug combinations may not work better than existing treatments, and side effects from immunotherapy can be serious.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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206 people
The number who actually took part.
- Started
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Jan 2021
- Finished
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May 2026
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Ability to comprehend and willingness to sign a written ICF for the study. Note for Germany: This excludes individuals who are housed in an institution due to official or court order 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, B, and E: 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. * Group E: Tumor tissue tested as MSS and PD-L1 positive. * Group F: Radiological evidence of disease progression on or after prior PD (L)1 therapy and Tumor tissue tested as MSI-H * 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, B and E 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, D and F (combinations): limiting immune-related toxicity during prior checkpoint inhibitor therapy. * Group F only: Previous treatment with LAG-# or TIM-3 therapy or lenvatinib; multiple metastases that achieved mixed tumor response to prior anti-PD-(L)1 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.
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Get notified about this study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Advent Health Medical Group-Orlando 2501
Orlando, Florida, 32804, United States
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Alaska Womens Cancer Care Akwcc
Anchorage, Alaska, 99508, United States
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Alexandra General Hospital of Athens
Athens, 11528, Greece
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Arizona Oncology Associates
Tucson, Arizona, 85711, United States
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Azienda Ospedaliero-Universitaria Di Bologna Policlinico S. Orsola - Malpighi
Bologna, 40138, Italy
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Barbara Ann Karmanos Cancer Hospital
Detroit, Michigan, 48201, United States
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Billings Clinic Cancer Center
Billings, Montana, 59101, United States
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Broward Health Medical Center
Fort Lauderdale, Florida, 33316, United States
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Cario - Centre Armoricain de Radiotherapie Imagerie Medicale Et Oncologie
Plérin, 22190, France
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Caucasus Medical Centre Llc
Tbilisi, 00186, Georgia
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Centre Hospitalier Universitaire de Liege - Sart Tilman
Liège, 04000, Belgium
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Centre de Lutte Contre Le Cancer - Institut de Cancerologie de L'Ouest - Rene Gauducheau
Saint-Herblain, 44800, France
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Charite - Campus Virchow-Klinikum
Berlin, 13353, Germany
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Chu Besancon Hospital Jean Minjoz
Besançon, 25000, France
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Chu Ucl Namur de Saint Elisabeth
Namur, 05000, Belgium
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Comitato Etico Fondazione Irccs Istituto Nazionale Dei Tumori Milano
Milan, 20133, Italy
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Comprehensive Cancer Centers of Nevada
Henderson, Nevada, 89074, United States
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Euromedica General Clinic of Thessaloniki
Thessaloniki, 54645, Greece
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European Institute of Oncology
Milan, 20141, Italy
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Fondazione Policlinico Universitario Agostino Gemelli Irccs
Roma, 00168, Italy
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Georgia Cancer Center
Augusta, Georgia, 30912, United States
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Ghent University Hospital
Ghent, 09000, Belgium
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H. Lee Moffitt Cancer Center and Research Institute Hospital
Tampa, Florida, 33612-9497, United States
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High Technology Hospital Medcenter
Batumi, 06000, Georgia
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Honorhealth
Phoenix, Arizona, 85016, United States
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Hospital Cochin Cancerologie
Paris, 75006, France
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Hygeia Hospital
Marousi, 15123, Greece
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INNOVA
Tbilisi, 00186, Georgia
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Institut Bergonie
Bordeaux, 33076, France
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Institut Gustave Roussy
Villejuif, 94805, France
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Institut Jules Bordet
Brussels, 01000, Belgium
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Iov - Istituto Oncologico Veneto Irccs
Padova, 35128, Italy
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Istituto Di Ricovero E Cura A Carattere Scientifico (Irccs) Ospedale San Raffaele
Milan, 20132, Italy
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Istituto Nazionale Tumori Irccs Fondazione Pascale
Naples, 80131, Italy
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Istituto Scientifico Romagnolo Per Lo Studio E La Cura Dei Tumori
Meldola, 47014, Italy
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Jsc Evex Hospitals
Kutaisi, 04600, Georgia
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Klinikum Kassel Gmbh
Kassel, 34125, Germany
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Laura & Isaac Perlmutter Cancer Ctr
New York, New York, 10016, United States
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Miami Cancer Institute
Miami, Florida, 33176, United States
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Midwest Cancer Care
Kansas City, Missouri, 64132, United States
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Minnesota Oncology-Maplewood
Coon Rapids, Minnesota, 55433, United States
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Mount Sinai Medical Center Comprehensive Cancer Center
Miami Beach, Florida, 33140, United States
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Multiprofile Clinic Consilium Medulla Llc
Tbilisi, 00186, Georgia
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New Mexico Cancer Care Alliance
Albuquerque, New Mexico, 87131, United States
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O.L.V Ziekenhuis
Aalst, 09300, Belgium
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Olive View Med Ctr
Sylmar, California, 91342, United States
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Ospedale Santa Maria Ca Foncello
Treviso, 31100, Italy
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Presidio Ospedaliero Di Summa Antonio Perrino
Brindisi, 72100, Italy
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Tennessee Oncology
Nashville, Tennessee, 37203, United States
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Texas Oncology San Antonio
San Antonio, Texas, 78240, United States
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Texas Oncology the Woodlands
Shenandoah, Texas, 77380, United States
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Texas Oncology-Austin Center
Austin, Texas, 78731, United States
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Texas Oncology-Fort Worth South Henderson
Fort Worth, Texas, 76104-3902, United States
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Texas Oncology-Tyler
Sioux Falls, South Dakota, 57104, United States
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The Ohio State University Wexner Medical Center Division of Gynecologic Oncology
Hilliard, Ohio, 43026, United States
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Todua Clinic, Llc
Tbilisi, 00112, Georgia
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UCLA Medical Hematology & Oncology
Los Angeles, California, 90048, United States
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Universitaire Ziekenhuis Leuven - Gasthuisberg
Leuven, 03000, Belgium
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Universitarsfrauenklinik Ulm
Ulm, 89075, Germany
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University Clinic Carl Gustav Carus Technical University Dresden
Dresden, 01307, Germany
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University Hospital of West Attica - Attikon
Athens, 12462, Greece
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University of North Carolina At Chapel Hill
Chapel Hill, North Carolina, 27514, United States
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Virginia Commonwealth University
Richmond, Virginia, 23298, United States
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Washington University
St Louis, Missouri, 63110, United States
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Willamette Valley Cancer Institute
Eugene, Oregon, 97401-8122, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Shorter, personalized radiation may target endometrial cancer with fewer side effects
- Robotic surgery vs standard approaches: does the platform change cancer outcomes?
- Can a Weight-Loss drug and an IUD treat early uterine cancer without surgery?
- Your gut bacteria may hold the key to whether immunotherapy works
- Can a guided missile for chemo hit tumors harder and spare healthy tissue?
- Can an oral drug that starves tumors help Hard-to-Treat cancers?