The one-year transition period that followed the entry into force of the new Clinical Trials Regulation (Regulation EU/536/2014, also known as CTR) will end on 31 January. During this transitional period, clinical trial sponsors had the option of submitting an application for a new clinical trial through the national submission procedures under the old regulation (Directive 2001/20/EC) or submitting their application through the Clinical Trials Information System (CTIS) under the new...