Article 20
Open ↗1. At the same time as the paediatric investigation plan is submitted under Article 16(1), a request may be made for deferral of the initiation or completion of some or all of the measures set out in that plan. Such deferral shall be justified on scientific and technical grounds or on grounds related to public health. In any event, a deferral shall be granted when it is appropriate to conduct studies in adults prior to initiating studies in the paediatric population or when studies in the paediatric population will take longer to conduct than studies in adults. 2. On the basis of the experience acquired as a result of the operation of this Article, the Commission may adopt provisions in accordance with the procedure referred to in Article 51(2) to define further the grounds for granting a deferral.