Cetuximab After Immunotherapy for the Treatment of Head and Neck Squamous Cell Cancer

Eligibility Criteria

• * Patients must have histologically or cytologically confirmed head and neck squamous cell carcinoma.
• * Measurable disease by scans- at least one measurable lesion.
• * Patients must have received previous treatment with immunotherapy with PD-1 inhibitor alone or in combination with chemotherapy.
• * Patients must have a Performance Status of 0-2.
• * Patients must be greater than or equal to 18 years old.
• * Willing to provide consent for collection of samples of blood and saliva as scheduled through the treatment.
• * Subject is willing and able to comply with the protocol for the duration of the study.
• * Willingness to donate 2 tablespoons of blood and one teaspoon of saliva for research before treatment, 3 more times during the first 5 weeks of treatment and then at cancer progression.
• * Ability to understand and the willingness to sign an Institutional Review Board-approved informed consent document.
• * Prior treatment with Cetuximab or prior therapy that specifically and directly targets the epidermal growth factor receptor (EGFR) pathway.
• * Prior allergic reaction to Cetuximab.
• * History of allergic reactions attributed to compounds of chemical or biologic composition similar to those of Cetuximab.
• * Patients receiving any other investigational agents.
• * Patient is on medications that need to be continued and that might interact with Cetuximab.
• * Any uncontrolled condition, which in the opinion of the investigator, would interfere in the safe and timely completion of study treatment and procedures.
• * Subject with a history of interstitial lung disease (e.g. pneumonitis or pulmonary fibrosis) or evidence of interstitial lung disease on screening chest imaging.
• * Serious or non-healing wound, ulcer, or bone fracture at the discretion of treating physician
• * history of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscess within 28 days of study enrollment
• * history of cerebrovascular accident (CVA) or transient ischemic attack within 12 months prior to study enrollment
• * history of myocardial infarction, ventricular arrhythmia, stable/unstable angina, -symptomatic congestive heart failure, coronary/peripheral artery bypass graft or stenting or other significant cardiac disease within 6 months prior to study enrollment
• * history of arterial or venous thrombosis/thromboembolic event, including pulmonary embolism within 6 months of study enrollment
• * any condition requiring the use of immunosuppression, excluding rheumatologic conditions treated with stable doses of corticosteroids.