Opinion of Advocate General Pitruzzella delivered on 23 January 2020.

Santen SAS v Directeur général de l’Institut national de la propriété industrielle.#Request for a preliminary ruling from the Cour d'appel de Paris.#Reference for a preliminary ruling — Medicinal product for human use — Supplementary protection certificate for medicinal products — Regulation (EC) No 469/2009 — Article 3(d) — Conditions for the grant of a certificate — Obtaining the first authorisation to place the product on the market as a medicinal product — Authorisation to place on the market a new therapeutic application of a known active ingredient.#Case C-673/18.