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The prospective data collection initiative on on small bowel, colorectal and anal cancer - a prospective observational cohort study.

The main objectives of this project are:- To start a prospective observational cohort study of patients who have been diagnosed with CRC, small bowel and anal cancer and follow them from time of diagnosis until death.- To prospectively collect data…

Longitudinal Leiden Orthopaedics Outcomes of OsteoArthritis Study

Given the above mentioned gaps in knowledge, the aim of this project is to1) Describe the midterm and long-term outcomes of (primary and revision) total hip, total knee and shoulder replacement surgery in terms of health status as a whole,…

A PHASE II STUDY OF TAILORED ADJUVANT THERAPY IN POLE-MUTATED AND p53-WILDTYPE/NSMP EARLY STAGE ENDOMETRIAL CANCER (RAINBO BLUE & TAPER)
SUBSTUDY A: RAINBO POLEmut-BLUE: Refining Adjuvant treatment IN endometrial cancer Based On molecular features (RAINBO) TransPORTEC platform trials

In the RAINBO POLEmut-BLUE trial, omission of adjuvant therapy will be investigated in very low risk disease and de-escalation of treatment (observation or radiotherapy, but not chemoradiation) in low risk disease.

Personalized elective neck irradiation guided by sentinel lymph node biopsy in patients with squamous cell carcinoma of the oropharynx, larynx or hypopharynx with a clinically negative neck: (chemo)radiotherapy to the PRIMary tumor Only. The PRIMO study.

To compare safety and efficacy of treatment with sentinel lymph node biopsy guided elective neck irradiation versus standard elective neck irradiation in patients receiving definitive (chemo)radiotherapy for squamous cell carcinoma of the…