4 studies found for:    Open Studies | "Histamine Antagonists"
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Rank Status Study
1 Recruiting Study of Using Long Acting Antihistamine to Treat Opioid Induced Itching
Condition: Pruritus
Interventions: Drug: Cetirizine;   Drug: Placebo or sugar pill
2 Recruiting Efficacy and Safety of CRTH2 Antagonist AZD1981 in Chronic Idiopathic Urticaria (CIU) Antihistamines
Condition: Chronic Idiopathic Urticaria
Interventions: Drug: AZD1981;   Drug: Placebo
3 Recruiting Study of Efficacy and Safety of Omalizumab in Refractory Chronic Spontaneous Urticaria Patients
Condition: Chronic Spontaneous Uriticaria
Interventions: Biological: Omalizumab;   Other: Placebo
4 Not yet recruiting Efficacy of Levocetirizine Fourfold Dosage in Chronic Spontaneous Urticaria
Condition: Chronic Spontaneous Urticaria
Interventions: Drug: Levocetirizine (as levocetirizine dihydrochloride), 5mg ( then 20 mg) per day . Oral administration.;   Drug: Levocetirizine, (as levocetirizine dihydrochloride) 20 mg ( then 5 mg) per day. Oral administration.

Indicates status has not been verified in more than two years