An Efficacy and Safety Study of Desloratadine (MK-4117) in Japanese Participants With Chronic Urticaria (MK-4117-201)
Urticaria
About this trial
This is an interventional treatment trial for Urticaria focused on measuring Urticaria, Skin Diseases, Vascular, Skin Diseases, Hypersensitivity, Immediate, Hypersensitivity, Immune System Diseases, Cholinergic Antagonists, Cholinergic Agents, Neurotransmitter Agents, Histamine H1 Antagonists, Non-Sedating, Histamine H1 Antagonists, Histamine Antagonists, Histamine Agents
Eligibility Criteria
Inclusion Criteria:
- Chronic urticaria [rash (erythema, wheal) for more than 1 month without any known cause]
- Out-patient
Exclusion Criteria:
- Stimulation-induced urticaria [physical urticaria (e.g. cold, solar, and heat urticaria), cholinergic urticaria, contact urticaria)]
- Hypersensitivity to antihistamines or ingredients of a study drug
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Placebo Comparator
Desloratadine 5 mg
Desloratadine 10 mg
Placebo
Participants receive desloratadine 5 mg, as one 5-mg tablet and one placebo tablet, orally, once daily in the evening for 2 weeks
Participants receive desloratadine 10 mg, as two 5-mg tablets, orally, once daily in the evening for 2 weeks
Participants receive placebo, as two tablets, orally, once daily in the evening for 2 weeks