Henrik Watz1, Sunil J Mistry, Aili L Lazaar. 1. Pulmonary Research Institute at LungClinic Grosshansdorf, Airway Research Center North (ARCN), Member of the German Center for Lung Research, Woehrendamm 80, D-22927 Grosshansdorf, Germany. h.watz@pulmoresearch.de
Abstract
BACKGROUND: Inhibition of phosphodiesterase 4 (PDE4) represents an approach to anti-inflammatory therapy in chronic obstructive pulmonary disease (COPD). GSK256066 is a potent and selective inhaled PDE4 inhibitor. The aim of this study was to investigate the safety and tolerability of 28 days repeat inhaled dosing with GSK256066 in moderate COPD. METHODS: This was a Phase IIa, multicenter, parallel-group, double-blind, three-arm, placebo-controlled, four-week, randomized study with two doses of GSK256066 (25 μg, 87.5 μg). The primary endpoint was safety and tolerability. Secondary endpoints included changes in inflammatory markers in induced sputum and blood, lung function (spirometry, body plethysmography, impulse oscillometry), and pharmacokinetics. RESULTS:104 patients were randomized and 94 patients completed the study. The incidence and intensity of treatment-related adverse events were similar between treatment groups. The most frequent adverse event was nasopharyngitis and there were no serious adverse events in patients receiving GSK256066. The overall incidence of gastrointestinal adverse events was low in all treatment groups. There were no statistically significant changes in inflammatory markers in induced sputum and blood following treatment with GSK256066. Analysis of sputum mRNA suggested engagement of pharmacology, based on increased expression of cAMP-dependent genes including amphiregulin and CREM in subjects receiving GSK256066. There was a trend for an increase in post-bronchodilator FEV1 for both doses of GSK256066; in addition, for the 87.5 μg group, there was a mean reduction in residual volume of 0.367 L (95% confidence interval: 0.112, 0.622 L) relative to placebo. CONCLUSIONS: Administration of inhaled GSK256066 was well-tolerated in patients with moderate COPD. Further studies would be required to confirm the favorable safety profile and to demonstrate clinical efficacy of this compound. (ClinicalTrials.gov identifier: NCT00549679).
RCT Entities:
BACKGROUND: Inhibition of phosphodiesterase 4 (PDE4) represents an approach to anti-inflammatory therapy in chronic obstructive pulmonary disease (COPD). GSK256066 is a potent and selective inhaled PDE4 inhibitor. The aim of this study was to investigate the safety and tolerability of 28 days repeat inhaled dosing with GSK256066 in moderate COPD. METHODS: This was a Phase IIa, multicenter, parallel-group, double-blind, three-arm, placebo-controlled, four-week, randomized study with two doses of GSK256066 (25 μg, 87.5 μg). The primary endpoint was safety and tolerability. Secondary endpoints included changes in inflammatory markers in induced sputum and blood, lung function (spirometry, body plethysmography, impulse oscillometry), and pharmacokinetics. RESULTS: 104 patients were randomized and 94 patients completed the study. The incidence and intensity of treatment-related adverse events were similar between treatment groups. The most frequent adverse event was nasopharyngitis and there were no serious adverse events in patients receiving GSK256066. The overall incidence of gastrointestinal adverse events was low in all treatment groups. There were no statistically significant changes in inflammatory markers in induced sputum and blood following treatment with GSK256066. Analysis of sputum mRNA suggested engagement of pharmacology, based on increased expression of cAMP-dependent genes including amphiregulin and CREM in subjects receiving GSK256066. There was a trend for an increase in post-bronchodilator FEV1 for both doses of GSK256066; in addition, for the 87.5 μg group, there was a mean reduction in residual volume of 0.367 L (95% confidence interval: 0.112, 0.622 L) relative to placebo. CONCLUSIONS: Administration of inhaled GSK256066 was well-tolerated in patients with moderate COPD. Further studies would be required to confirm the favorable safety profile and to demonstrate clinical efficacy of this compound. (ClinicalTrials.gov identifier: NCT00549679).
Authors: Shan Yu; Aaron D Pearson; Reyna Kv Lim; David T Rodgers; Sijia Li; Holly B Parker; Meredith Weglarz; Eric N Hampton; Michael J Bollong; Jiayin Shen; Claudio Zambaldo; Danling Wang; Ashley K Woods; Timothy M Wright; Peter G Schultz; Stephanie A Kazane; Travis S Young; Matthew S Tremblay Journal: Mol Ther Date: 2016-10-12 Impact factor: 11.454
Authors: Wim Vos; Bita Hajian; Jan De Backer; Cedric Van Holsbeke; Samir Vinchurkar; Rita Claes; Annemie Hufkens; Paul M Parizel; Lieven Bedert; Wilfried De Backer Journal: Int J Chron Obstruct Pulmon Dis Date: 2016-02-04