The Overview of Medical Research in the Netherlands (OMON), formerly the Dutch Trial Register, contains the studies from ToetsingOnline and the studies that were registered in the former National Trial Register (NTR).
How to modify the data
You can modify your NTR study data by completing the form ‘Update of NTR registration’.
ToetsingOnline study data can be modified by adapting the ABR form in ToetsingOnline for data included in the ABR, by uploading study results in ToetsingOnline or by informing the ethics committee concerned when data such as start- and end-of-study dates are involved.
The source of the study in OMON is visible under 'Study registrations'. If a study was previously registered in NTR and submitted via ToetsingOnline, both the NTR and ToetsingOnline number are mentioned under ‘Study registrations’ and the data from ToetsingOnline is being displayed.
WHO data provider and publication requirements
OMON is an official data provider to the International Clinical Trial Registry Platform (ICTRP) of the World Health Organization (WHO). The data as registered in OMON are automatically included in ICTRP and can be consulted on the ICTRP Search Portal. In this way, the investigator meets the requirement of prospective registration set by the International Committee of Medical Journal Editors (ICMJE) for publication in scientific journals. Modifications are automatically included in the ICTRP.
For the registration of new studies which have not been submitted via ToetsingOnline or CTIS, you may choose one of the primary registries in the WHO Registry Network, for example ClinicalTrials.gov. The full list of registries can be found at Primary registries in the WHO registry network.
Further development
In future, studies from CTIS will be added to OMON. Additionally, it will become possible to register new studies. When the module Clinical Investigation & Performance Studies will be available in Eudamed, studies from Eudamed will be added as well.
Keep an eye on the 'Latest' page to stay informed of developments.