ASP7663 concentration dependently increases intracellular Ca concentration in human, rat, and mouse TRPA1 expressed in HEK293 cells in a similar manner, with respective EC50 values (95% confidence interval [CI]) of 0.51 (0.40–0.66), 0.54 (0.41–0.72), and 0.50 (0.41–0.63) μmol/L.
ASP7663 concentration-dependently stimulates 5-HT release from QGP-1 cells, a lineage of TRPA1-expressing EC cells, with an EC50 value of 72.5 (52.6–99.9) μmol/L.