Clinical Research Directory

Inclusion Criteria: * High dose reirradiation (reirradiation type I or II or repeat organ irradiation delivered with the aim of local control) Read Danish (for questionnaires + patient information) Life expectancy due to age and co-morbidity of ≥6 months. The general condition must be sufficient to tolerate persistent significant side effects Histological or imaging verified loco-regional recurrence, solitary oligo metastasis or new primary Age ≥18 years Signed informed consent, updated annually Expected follow up physical, by video, by phone or likely contact at a relevant oncological department Available dose plan(s) from primary (and prior) radiotherapy course(s) (with 3D reconstruction of previous plans, available port film, or drawings). Multiple re-treatments are allowed (new inclusion and baseline registration) Exclusion Criteria: * The primary and reirradiation treatments may not be quasi-simultaneous (i.e. the two treatments should be planned independently) Inability to attend full course of radiotherapy Purpose of radiotherapy is ONLY palliation of symptoms