fluticasone furoate umeclidinium bromide and vilanterol trifenatate - Generic Medications

TRELEGY ELLIPTA is an inhalation powder drug product for delivery of a combination of fluticasone furoate (an ICS), umeclidinium (an anticholinergic), and vilanterol (a LABA) to patients by oral inhalation. Fluticasone furoate, a synthetic trifluorinated corticosteroid, has the chemical name (6α,11β,16α,17α)-6,9-difluoro-17-{[(fluoro-methyl)thio]carbonyl}-11-hydroxy-16-methyl-3-oxoandrosta-1,4-dien-17-yl 2-furancarboxylate and the following chemical structure: Fluticasone furoate is a white powder with a molecular weight of 538.6, and the empirical formula is C 27 H 29 F 3 O 6 S. It is practically insoluble in water. Umeclidinium bromide has the chemical name 1-[2-(benzyloxy)ethyl]-4-(hydroxydiphenylmethyl)-1-azoniabicyclo[2.2.2]octane bromide and the following chemical structure: Umeclidinium bromide is a white powder with a molecular weight of 508.5, and the empirical formula is C 29 H 34 NO 2 •Br (as a quaternary ammonium bromide compound). It is slightly soluble in water. Vilanterol trifenatate has the chemical name triphenylacetic acid-4-{(1 R )-2-[(6-{2-[2,6-dicholorobenzyl)oxy]ethoxy}hexyl)amino]-1-hydroxyethyl}-2-(hydroxymethyl)phenol (1:1) and the following chemical structure: Vilanterol trifenatate is a white powder with a molecular weight of 774.8, and the empirical formula is C 24 H 33 Cl 2 NO 5 •C 20 H 16 O 2 . It is practically insoluble in water. TRELEGY ELLIPTA is a light grey and beige plastic inhaler containing 2 foil blister strips. Each blister on one strip contains a white powder blend of micronized fluticasone furoate (100 or 200 mcg) and lactose monohydrate (12.4 or 12.3 mg) and each blister on the other strip contains a white powder blend of micronized umeclidinium bromide (74.2 mcg equivalent to 62.5 mcg of umeclidinium), micronized vilanterol trifenatate (40 mcg equivalent to 25 mcg of vilanterol), magnesium stearate (75 mcg), and lactose monohydrate (12.3 mg). The lactose monohydrate contains milk proteins. After the inhaler is activated, the powder within both blisters is exposed and ready for dispersion into the airstream created by the patient inhaling through the mouthpiece. Under standardized in vitro test conditions, TRELEGY ELLIPTA delivers 92 or 184 mcg of fluticasone furoate, 55 mcg of umeclidinium, and 22 mcg of vilanterol per dose when tested at a flow rate of 60 L/min for 4 seconds. At flow rates of 30, 60, and 90 L/min for 4 seconds under in vitro test conditions, TRELEGY ELLIPTA delivers ≥90% of the target dose for each component. In adult subjects with very severe COPD (FEV 1 /FVC [forced vital capacity] <70% and FEV 1 <30% predicted), mean peak inspiratory flow through the ELLIPTA inhaler was 65.8 L/min (range: 43.5 to 94.1 L/min). In adult subjects with severe asthma, mean peak inspiratory flow through the ELLIPTA inhaler was 96.6 L/min (range: 72.4 to 124.6 L/min). The actual amount of drug delivered to the lung will depend on patient factors, such as inspiratory flow profile. Fluticasone furoate chemical structure Umeclidinium chemical structure Vilanterol chemical structure