Recurrent Uterine Cancer

REGYNERA(dia)TION is an international, multicenter, ambispective observational patient registry of adults with recurrent gynecologic malignancies after prior radiotherapy who are treated or planned for reirradiation and/or total ablative strategies as part of routine clinical care. The registry does not assign treatment. Radiotherapy technique, dose, systemic therapy, surgery, metastasis-directed therapy, imaging, and follow-up are selected by the treating multidisciplinary team according to local standards and patient-specific factors. The registry will collect harmonized retrospective and prospective data on disease characteristics, prior radiotherapy, recurrence pattern, reirradiation or ablative treatment exposure, response, progression, survival, severe treatment-related morbidity, fistula events, and patient-reported outcomes where available.