About this trial
This study is being done to find out whether the study drug Retifanlimab, a monoclonal antibody against the PD-1 protein, combined with gemcitabine and docetaxel, is a safe and effective treatment for your disease. Gemcitabine and docetaxel are chemotherapy drugs that are commonly used to treat soft tissue sarcoma. Retifanlimab is an experimental drug that boosts the immune system's ability to fight cancer cells. The study researchers think that Retifanlimab may help gemcitabine and docetaxel work better against soft tissue sarcoma that is either locally advanced or has spread beyond its original location (metastasized), and it cannot be removed with surgery (unresectable).
Eligibility criteria
Qualifiers
primary tumor cannot be safely removed surgically, or
primary tumor would benefit from systemic therapy prior to a surgical approach
Be willing and able to provide written informed consent
Must consent to mandatory tumor biopsy (if deemed safe and feasible) for research studies at screening, if archival tissue is not available, and at C1D15, C3D15.
Disqualifiers
Negative serum pregnancy test in women of childbearing potential
Patients with chronic HBV (HBsAg-positive with undetectable or low HBV DNA and normal ALT, or HBsAg-negative with anti-HBc-positive serology) and HCV (completed curative antiviral treatment with HCV viral load below the limit of quantification) may be eligible
Patients with HBV should be treated with suppressive antiviral therapy prior to enrollment
Patients with HCV must have completed curative therapy and have negative HCV viral load
Trial design
Treatments tested in this trial
- Retifanlimab
- Gemcitabine
- Docetaxel
Treatment groups
10
Treatment groupsSee each treatment group below.
Sponsors and collaborators
Memorial Sloan Kettering Cancer Center
Lead sponsor
Incyte Corporation
Collaborator