Fig. 2From: The Allergic Rhinitis Clinical Investigator Collaborative (AR-CIC): verification of nasal allergen challenge procedures in a study utilizing an investigational immunotherapy for cat allergyTNSS and PNIF data were obtained at baseline, 15, 30 min, 1 h and then hourly for a minimum of 6 h during each NAC visit. Once baseline measurements were recorded, participants received a saline wash of the nasal cavity and were challenged with the qualifying dose of cat dander extract determined during the screening visitBack to article page