A Proof of Concept Study to Assess Effect of Fluticasone Furoate (FF)/Levocabastine Fixed Dose Combination (FDC) Compared With Levocabastine and FF Alone in Subjects With Allergic Rhinitis (AR)

FF/levocabastine (25mcg/50 mcg) will be supplied as intranasal aqueous microsuspension in an amber glass bottle fitted with a white top actuated plastic metering atomising spray pump filled with a uniform white suspension. Two sprays in each nostril in the morning in a fasted state will be administered.

FF (25mcg) will be supplied as intranasal aqueous microsuspension in an amber glass bottle fitted with a white top actuated plastic metering atomising spray pump filled with a uniform white suspension. Two sprays in each nostril in the morning in a fasted state will be administered.

levocabastine (50mcg) will be supplied as intranasal aqueous microsuspension in an amber glass bottle fitted with a white top actuated plastic metering atomising spray pump filled with a uniform white suspension. Two sprays in each nostril in the morning in a fasted state will be administered.

Placebo will be supplied as intranasal aqueous microsuspension in an amber glass bottle fitted with a white top actuated plastic metering atomising spray pump filled with a uniform white suspension. Two sprays in each nostril in the morning in a fasted state will be administered.