Ficerafusp Alfa, Pembrolizumab, and Stereotactic Body Radiotherapy (SBRT) for Head and Neck Squamous Cell Carcinoma (HNSCC) (NCT07552558)

Usually NOT eligible if any of the following apply:

• Exclusion Criteria:
• Currently receiving any other investigational agents.
• Prior history of grade ≥ 2 intolerance or hypersensitivity reactions to other murine proteins, or the active substances of ficerafusp alfa, pembrolizumab, or any of their excipients.
• At higher risk of bleeding, including known bleeding diathesis or current active major bleeding, or recent major bleeding episode (within 4 weeks prior to enrollment).
• Any of the following within 6 months prior to starting study treatment: ST-elevation myocardial infarction, severe/unstable angina, uncontrolled cardiac ventricular arrhythmia, coronary/peripheral artery bypass graft or stent, cerebrovascular accident/stroke less than 6 months prior to enrollment, or congestive heart failure. Subjects with deep vein thrombosis who are hemodynamically stable can enroll if they are on a stable dose of anticoagulants for at least 3 months.
• Active autoimmune disease requiring systemic treatment in the past 2 years (i.e., with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
• Active systemic infection requiring either hospitalization or parenteral anti-infective therapy within 2 weeks before first dose of study treatment.
• Chronic hepatitis B virus (HBV) infection with active disease meeting the criteria for anti-HBV therapy but not on a suppressive antiviral therapy prior to initiation of study treatment. HBV testing not required in the absence of known history of infection. Note: Subjects who are hepatitis B surface antigen positive are eligible if they have received HBV antiviral therapy for at least 4 weeks and have undetectable HBV viral load prior to randomization. These subjects should remain on antiviral therapy throughout the study treatment period and follow local guidelines for HBV antiviral therapy post completion of study treatment.
• Known history of hepatitis C virus (HCV) infection that has not been cured or that has a detectable viral load. Patients with a history of HCV that has been treated and cured are eligible provided they completed curative antiviral therapy at least 4 weeks prior to initiation of study treatment. Patients with HCV infection who are currently on treatment and have an undetectable HCV viral load are eligible. HCV testing not required in the absence of known history of infection.
• Known history of human immunodeficiency virus (HIV) (HIV 1/2 antibodies) with viral load \>0 or CD4\<350. HIV testing is not required in the absence of known history of infection.
• Receipt of any organ transplantation, including autologous and allogeneic stem cell transplantation, except for transplants that do not require immunosuppression.
• Known to be diagnosed and/or treated for any other additional malignancy within 2 years prior to randomization with the exception of the following: curatively treated basal cell carcinoma or squamous cell carcinoma of the skin, and curatively resected in situ cervical cancer, and curatively resected in situ breast cancer, and low-risk early stage prostate cancer defined as follows: Stage T1c or T2a with a Gleason score ≤ 6 and prostatic-specific antigen \< 10 ng/mL either treated with definitive intent or untreated in active surveillance that has been stable for the past year prior to study entry. Other exceptions may be considered with the PI's consultation. The time requirement for no malignancy for 2 years does not apply to the cancer for which a subject is enrolled in the study.