Study of Proton SBRT and Immunotherapy for Recurrent/Progressive Locoregional or Metastatic Head and Neck Cancer

Condition:   Head and Neck Cancer
Interventions:   Radiation: Proton Stereotactic Body Radiation Therapy (SBRT) (5 fractions; 3500-4500 cGy);   Radiation: Proton Stereotactic Body Radiation Therapy (SBRT) (3-5 fractions; various dose and fractionation regimens depending on treatment site).;   Drug: Nivolumab 3 mg/kg IV q2 weeks;   Radiation: Proton or Photon SBRT (3-5 fractions; various dose and fractionation regimens depending on treatment site).
Sponsor:   Mayo Clinic
Not yet recruiting

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