Dataset from A Single Centre, Open-label, 5-Period, Cross Over, Randomized Study in Healthy Elderly Subjects to Evaluate the Relative Bioavailability of Hydrobromide Salt and Free Base Immediate Release Tablet Formulations of Danirixin in the Fed State, and to Evaluate the Effect of Food and Gastric Acid Secretion Suppression on Danirixin Pharmacokinetics Following Administration of Hydrobromide Salt Tablets

The current study will help to increase our understanding of the pharmacokinetics (PK) of danirixin. The primary objective of the study is to estimate the relative bioavailability of danirixin Hydrobromide (HBr) tablet, when compared to danirixin free base (FB). Safety and tolerability information for oral administration of danrixin HBr tablets in elderly subjects will also be obtained. Secondarily, this study will evaluate effect of food on PK of danirixin HBr, effect of gastric acid suppression, and within-subject PK variability of danirixin HBr. The outcome of this study will contribute to the selection of the most appropriate formulation/dosing regimen for future studies. This is an open-label, 5-period crossover study. Study will be conducted in 18 healthy elderly subjects. Screening will occur within 42 days prior to Day 1 of period 1. The Treatment Periods will be separated by a washout period of a minimum 5 days. Follow-up will be done within 3 to 10 days post last dose.