‘Clinical trial’ means a clinical study which fulfils any of the following conditions:
(a) the assignment of the subject to a particular therapeutic strategy is decided in advance and does not fall within normal clinical practice of the Member State concerned;
(b) the decision to prescribe the investigational medicinal products is taken together with the decision to include the subject in the clinical study; or
(c) diagnostic or monitoring procedures in addition to normal clinical practice are applied to the subjects. EU 536/2014 Art. 2 Abs. 2 (2)