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LIMited wEdge ResectIon for Colonic T1 cancer - a prospective multicenter cohort study

The aim of this study is to investigate the safety and efficacy of CAL-WR as primary and curative colon-preserving treatment for T1 colon cancer. Our primary endpoint is reduction of oncologic resections for low-risk T1 colon cancer. As secondary…

VASCO study: A population-based prospective cohort study on vaccine effectiveness of COVID-19 vaccines in the Netherlands

The primary objective is to estimate product-specific vaccine effectiveness (VE) of the COVID-19 vaccines that are used in the Dutch national vaccination program against symptomatic SARS-CoV-2 infection by age and medical risk group at a time point…

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…

Melanoma Margins Trial-II: 1cm v 2cm Wide Surgical Excision Margins for AJCC Stage II Primary Cutaneous Melanoma (MelMarT-II)

This study will determine whether there is a difference in disease free survival for patients treated with either a 1cm excision margin or 2cm margin for clinical stage II (pT2b-pT4b) primary cutaneous melanoma (AJCC 8th edition, Table 1). The…

A prospective evaluation of pancreatic cyst surveillance, based on the consensus statement, formulated by the European study group on cystic tumours of the pancreas

First, to establish the yield of the currently propagated pancreatic cyst surveillance program, and second, to identify possible alternative surveillance strategies, which might be more (cost) effective.