Challenge Agent Name

**Semantic type:** Conceptual Entity

**Definition:** The name of the non-investigational medicinal product (NIMP) given to trial subjects to produce a physiological response that is necessary before the pharmacological action of the investigational medicinal product can be assessed. [After Recommendations from the expert group on clinical trials for the implementation of Regulation (EU) No 536/2014' dd 28 June 2017]

**Synonyms:** - CAGTNAM