This study is a single centre, randomised, double-blind, sponsor-unblinded, placebo-controlled, 2 by 2 crossover study in adults with heart failure. In blocking the TRPV4 ion channel and reducing pulmonary interstitial fluid, GSK2798745 may improve pulmonary function, respiration, and gas exchange as well as sleep-disordered breathing in patients with heart failure. Therefore, the current study is designed to investigate the effect of repeat administration of GSK2798745 on pulmonary gas exchange and pulmonary function.
A sufficient number of subjects with heart failure will be enrolled so that 12 subjects complete the two study periods and critical assessments. Subjects will be randomised to receive either GSK2798745 or placebo once daily for a period of 7 days in one treatment period and alternate study medication in the second treatment period. Both the treatment periods will be separated by a washout period of at least 14-days.
This study will consist of a Screening visit within 14 days of the start of Period I and two treatment periods wherein eligible subjects will be randomised to one of the two treatment sequences, a follow-up visit approximately 2 weeks after the completion of second study period. The total duration of the study is approximately 8 weeks from screening to follow-up visit.
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