Randomised Controlled Trial
When referring to clinical trials, randomised refers to a trial which is set up in a deliberately random or unpredictable way. Known as the gold standard of clinical trials, randomised controlled trials ensure that the participants in the study are allocated randomly to the study groups.
Inflammation of the mucous membrane of the nose, caused by a virus infection (e.g. the common cold) or by an allergic reaction (e.g. hay fever).