RCM-1 reduces airway resistance, increased lung compliance, and decreased proinflammatory cytokine production in mice exposed to the house dust mite and interleukin-13 (IL-13), which triggers goblet cell metaplasia. In mice, RCM-1 reduces IL-13 and STAT6 signaling and prevented the expression of the STAT6 target genes Spdef and Foxa3.