Clinical Study to Evaluate the Safety, Tolerability and the Concentration of the BDP (Beclomethasone Dipropionate), Active Metabolite of BDP, FF( Formoterol Fumarate) and GB (Glycopyrronium Bromide), After Inhalation of CHF 5993 at Two Different Doses and QVAR®

"CHF 5993 BDP/FF/GB 200/6/12.5 µg pMDI with HFA 134a propellant (fixed combination of BDP \[200 μg\], FF \[6 μg\] and GB \[12.5 μg\] via pMDI): 4 inhalations alternated with 4 inhalations of CHF 5993 placebo, corresponding to 8 inhalations in total and giving a total daily dose (TDD) of BDP/FF/GB: 800/24/50 µg.~Reference product 1 (R1): CHF 5993 BDP/FF/GB 100/6/12.5 µg pMDI with HFA 134a propellant (fixed combination of BDP \[100 μg\], FF \[6 μg\] and GB \[12.5 μg\] via pMDI): 4 inhalations alternated with 4 inhalations of CHF 5993 placebo, corresponding to 8 inhalations in total and giving a TDD of BDP/FF/GB: 400/24/50 µg.~Reference product 2 (R2): BDP HFA (QVAR REDIHALER®, BDP 80 μg): pressurised, breath-actuated, metered dose aerosol with a dose counter): 8 inhalations (TDD of BDP: 640 µg ex-actuator, 800 µg ex valve)."

with HFA 134a propellant (fixed combination of BDP \[100 μg\], FF \[6 μg\] and GB \[12.5 μg\] via pMDI): 4 inhalations alternated with 4 inhalations of CHF 5993 placebo, corresponding to 8 inhalations in total and giving a TDD of BDP/FF/GB: 400/24/50 µg

pressurised, breath-actuated, metered dose aerosol with a dose counter): 8 inhalations (TDD of BDP: 640 µg ex-actuator, 800 µg ex valve).