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Study identifier: NCT06422806 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Measuring if Immunotherapy Plus Chemotherapy is Better Than Chemotherapy Alone for Patients With Aggressive Poorly Differentiated Sarcomas

Condition: Metastatic Dedifferentiated Liposarcoma · Metastatic Undifferentiated Pleomorphic Sarcoma · Stage III Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8  ·  Sponsor: National Cancer Institute (NCI)

PhasePhase 3
Planned participants365
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This phase III trial compares the effect of immunotherapy (pembrolizumab) plus chemotherapy (doxorubicin) to chemotherapy (doxorubicin) alone in treating patients with dedifferentiated liposarcoma (DDLPS), undifferentiated pleomorphic sarcoma (UPS) or a related poorly differentiated sarcoma that has spread from where it first started (primary site) to other places in the body (metastatic) or that cannot be removed by surgery (unresectable). Doxorubicin is in a class of medications called anthracyclines. Doxorubicin damages the cell's deoxyribonucleic acid (DNA) and may kill tumor cells. It also blocks a certain enzyme needed for cell division and DNA repair. A monoclonal antibody is a type of protein that can bind to certain targets in the body, such as molecules that cause the body to make an immune response (antigens). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Adding immunotherapy (pembrolizumab) to the standard chemotherapy (doxorubicin) may help patients with metastatic or unresectable DDLPS, UPS or a related poorly differentiated sarcoma live longer without having disease progression.

This description comes directly from the study's public registry record.

Talk to the study team

Contact details are listed per location below or on the registry record.

Always discuss trial participation with your own doctor first.

Locations (257)

Mayo Clinic Hospital in ArizonaPhoenix, Arizona, United StatesRecruiting
Banner University Medical Center - TucsonTucson, Arizona, United StatesRecruiting
University of Arizona Cancer Center-North CampusTucson, Arizona, United StatesRecruiting
Kaiser Permanente DublinDublin, California, United StatesRecruiting
Kaiser Permanente-FremontFremont, California, United StatesRecruiting
Kaiser Permanente Fresno Orchard PlazaFresno, California, United StatesRecruiting
Kaiser Permanente-FresnoFresno, California, United StatesRecruiting
UC San Diego Moores Cancer CenterLa Jolla, California, United StatesRecruiting
Keck Medicine of USC KoreatownLos Angeles, California, United StatesRecruiting
Los Angeles General Medical CenterLos Angeles, California, United StatesRecruiting
USC / Norris Comprehensive Cancer CenterLos Angeles, California, United StatesRecruiting
Cedars-Sinai Medical CenterLos Angeles, California, United StatesRecruiting

+ 245 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06422806