ecrin-mdr-crcClinical2020Adenomatous Polyposis ColiColorectal NeoplasmsFamilial Adenomatous PolyposisNasopharyngeal NeoplasmsAdenomatous Polyposis ColiColorectal NeoplasmsFamilial Adenomatous PolyposisNasopharyngeal NeoplasmsObservational patient registryhttps://newmdr.ecrin.org/Study/2361483Netherlands11Endoscopic interventionsEndoscopic surveillanceGastrointestinal neoplasiaPersonalised careECRIN MDRRecruitingfalseA Personalized Surveillance and Intervention Protocol for Patients With Familial Adenomatous Polyposis That Have Undergone (Procto)ColectomyThe purpose of this study is to determine the efficacy and safety of a personalised surveillance and intervention protocol for patients with familial adenomatous polyposis (FAP) that have undergone (procto)colectomy.2020-11-152361483NCT04678011