2807 Phase II explorative trial to prospectively investigate predictive molecular biomarkers for efficacy of panitumumab (P) in platinum-pretreated head and neck squamous cell cancer (HNSCC). (September 2015) - Siano, M.; Molinari, F.; Martin, V.; Mach, N.; Früh, M.; Meehan, B.; Crippa, S.; Ghielmini, M.; Espeli, V.; Frattini, M.