A randomized, double-blind placebo-controlled study of intranasal standardized cinnamon bark extract for seasonal allergic rhinitis

The aim of the study was to assess the safety and efficacy of a nasal spray containing a polyphenol-rich standardized extract of cinnamon bark (Cinnamomum zeylanicum) (IND02) for the treatment of seasonal allergic rhinitis (SAR).This study was a randomized, double-blind, placebo-controlled study conducted in otherwise healthy men and women, aged between 18 and 75 years old, who were experiencing acute SAR symptoms. Participants were randomized...