Development of Tumor Organoids From Undifferentiated Primary Carcinomas to Guide Therapeutic Decisions

"Prior to initiation of 1st-line therapy:~* Collection of an additional study-specific tumor sample for tumoroid analysis (1 fresh tumor sample)~* A blood test blood a for tumoroid realization and :~* Analysis of ex vivo tumoroid response to treatment and correlation with patient response in vivo~* Analysis of correlation between in vivo and ex vivo tumor characteristics~* Analysis of first- and second-line survival rates and overall survival"