No prior chemotherapy or biologic/molecular targeted therapy for recurrent or metastatic SCCHN [clinicaltrials_resource:054bad6ee704e6e0324e5f6855b712f1]

No prior chemotherapy or biologic/molecular targeted therapy for recurrent or metastatic SCCHN [clinicaltrials_resource:054bad6ee704e6e0324e5f6855b712f1]