Registration and budget


The SONA study was approved by the accredited Medical Ethics Committee of the Netherlands Cancer Institute – Anotni van Leeuwenhoek (METC AVL). It is registered in the European Clinical Trials Database (2015-000617-43) and (NCT03425838).



Funding for this study is provided by the Netherlands Organization for Health Research and Development (ZonMw) and Health insurers Netherlands (ZN).