CDX-3379 is a fully human monoclonal antibody that binds to a molecule called human epidermal growth factor receptor 3 (HER3 or ErbB3) found on certain cells and may act to promote anti-tumor effects.~Cetuximab is a human monoclonal antibody that blocks EGFR, a protein receptor that regulates cell growth.~This study will evaluate the safety, tolerability and efficacy of CDX-3379 in combination with cetuximab in patients with advanced head and neck squamous cell carcinoma who have previously received cetuximab and progressed.~Eligible patients that enroll in the study will be given the dose of 12 mg/kg CDX-3379 once every 3 weeks in combination with 400 mg/m2 cetuximab on the first day followed by weekly doses of 250 mg/m2 cetuximab.~Up to 45 patients will be enrolled. All patients enrolled in the study will be closely monitored to determine if there is a response to the treatment as well as for any side effects that may occur.
This is a study to determine the clinical benefit (how well the drug works), safety and tolerability of combining CDX-3379 and cetuximab. The study will enroll patients with advanced head and neck squamous cell carcinoma who have previously received cetuximab and progressed.