1. Laboratory of PharmacologyInstitut Claudius Regaud, IUCT‐Oncopole Toulouse France
2. CRCTUniversity of Toulouse, Inserm Toulouse France
3. Laboratory of Rare Human Circulating CellsUniversity Medical Centre of Montpellier Montpellier France
4. Department of Head Neck Cancer and LaryngologyUniversity Medical Centre of Montpellier France
5. Medical Oncology DepartmentCHU Saint André Bordeaux France
6. Department of Head and Neck OncologyGustave Roussy Villejuif France
7. Department of Medical Oncology Nice France
8. Medical Oncology DepartmentInstitute of Cancer of Montpellier France
9. Medical Oncology DepartmentInstitut Claudius Regaud, IUCT‐Oncopole Toulouse France
10. Department of Head and Neck SurgeryUniversity Hospital Center of Nîmes France
11. Department of Radiation OncologyClinique Sainte Catherine Avignon France
12. Department of Head and Neck Oncology and SurgeryHôpital Dupuytren CHU Limoges France
13. Service de Pharmacologie et Immunoanalyse, Laboratoire d'Etude du Métabolisme des Médicaments, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut National de la Recherche AgronomiqueUniversité Paris Saclay Gif‐sur‐Yvette France
14. Department of Biostatistics, UPRES EA2415Clinical Research University Institute Montpellier France