6 studies found for:    Open Studies | "Histamine Antagonists"
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Rank Status Study
1 Not yet recruiting Anti-histamines and Methacholine Challenges.
Condition: Asthma
Interventions: Drug: Diphenhydramine;   Drug: cetirizine;   Drug: desloratadine;   Drug: placebo
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 Not yet recruiting Study of Using Long Acting Antihistamine to Treat Opioid Induced Itching
Condition: Pruritus
Interventions: Drug: Cetirizine;   Drug: Placebo or sugar pill
4 Recruiting Cold Urticaria Treatment With Xolair
Condition: Cold Contact Urticaria
Interventions: Drug: Omalizumab;   Drug: Placebo
5 Not yet recruiting Refractory Eustachian Tube Dysfunction: Are the Symptoms Related to Endolymphatic Hydrops
Conditions: Eustachian Tube Dysfunction;   Endolymphatic Hydrops
Interventions: Drug: Nasal steroid;   Procedure: Myringotomy tube placement;   Drug: Diuretic;   Drug: Antihistamine;   Behavioral: Low salt diet
6 Recruiting NOLAN: Naproxen or Loratadine and Neulasta
Condition: Bone Pain in Stage I - III Breast Cancer
Interventions: Drug: Naproxen;   Drug: Loratadine

Indicates status has not been verified in more than two years