Eosinophilic esophagitis is a common atopic disease of the esophagus. APT-1011 is an orally disintegrating tablet formulation of fluticasone propionate under development for the treatment of eosinophilic esophagitis.The objective of this study was to evaluate the pharmacokinetics,safety,and tolerability of APT-1011 under fed or fasted conditions in the morning (AM) or at bedtime (hs) in the supine position. The study was a randomized, single-dose, 3-way, crossover design in healthy adult volunteers. In each study period participants received 2 3-mg orally disintegrating APT-1011 tablets. Serial plasma samples were collected before dosing and up to 72 hours after each dose. Twenty-two participants completed the study. The fluticasone propionate peak concentration (C max ) ranged from 5.97 to 200 pg/mL. Compared with AM-fasted dosing, AM-fed dosing was associated with a modestly higher C max (ß21%) but lower net exposure (area under the concentration-time curve ß56% difference) and shorter time to reach C max (T max ) (T max fasted = 10 hours, fed = 5 hours). Dosing at hs resulted in an 18% and 32% decrease in C max relative to AM-fasted and AM-fed conditions, respectively. Dosing at hs led to an exposure that was higher than AM-fed but lower than AM-fasted dosing. T max with hs dosing (14 hours) was later than that with AM dosing (T max fasted = 10 hours, fed = 5 hours). Adverse events were mild. There is low systemic exposure of fluticasone propionate with APT-1011. The rate of absorption was increased with a high-fat meal but decreased with hs dosing, suggesting the potential for longer dwell times in the esophagus.