- Evaluation of the pharmacological activity of the pure cysteinyl-leukotriene receptor antagonists CGP 45715A (iralukast) and CGP 57698 in human airways. Capra, V., Ravasi, S., Bolla, M., Viappiani, S., Pagliardini, S., Belloni, P.A., Mezzetti, M., Folco, G.C., Nicosia, S., Rovati, G.E. Adv. Exp. Med. Biol. (1999)