Cahn, A Safety, pharmacokinetics and dose-response characteristics of GSK2269557, an inhaled PI3Kδ inhibitor under development for the treatment of COPD. [electronic resource] - Pulmonary pharmacology & therapeutics Oct 2017 - 69-77 p. digital Publication Type: Journal Article; Multicenter Study; Randomized Controlled Trial ISSN: 1522-9629 Standard No.: 10.1016/j.pupt.2017.08.008 doi Subjects--Topical Terms: Administration, InhalationAgedClass I Phosphatidylinositol 3-Kinases--antagonists & inhibitorsCytokines--metabolismDose-Response Relationship, DrugDouble-Blind MethodFemaleForced Expiratory VolumeHumansIndazoles--administration & dosageIndolesMaleMiddle AgedOxazoles--administration & dosagePiperazinesPulmonary Disease, Chronic Obstructive--drug therapySeverity of Illness IndexSputum--metabolismTreatment Outcome