The Overview of Medical Research in the Netherlands (OMON) is a register containing medical research in the Netherlands. Currently, it includes all data from the former National Trial Register (NTR), ToetsingOnline, the Research Portal and the CTIS public portal.
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 is 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.
Study data may be amended by updating them and submitting them in the Research Portal and/or CTIS.