| Completed | A Real-World Study of Omalizumab Treatment Patterns in Chronic Urticaria Patients in China NCT07450170 | Novartis Pharmaceuticals | — |
| Not Yet Recruiting | Treatment Options for Chronic Urticaria NCT06816784 | Sheikh Zayed Medical College | Phase 2 |
| Unknown | Positive Psychotherapy-Based Counseling (PPT) NCT05513079 | TC Erciyes University | N/A |
| Completed | Study to Compare Efficacy and Safety of TEV-45779 With XOLAIR (Omalizumab) in Adults With Chronic Idiopathic U NCT04976192 | Teva Pharmaceuticals USA | Phase 3 |
| Unknown | Modified Xiao-Feng Powder for Chronic Urticaria NCT04967092 | Prof. Lin Zhixiu | Phase 2 |
| Unknown | Real Life Use of Omalizumab in Chronic Urticaria NCT04584190 | University Hospital, Montpellier | — |
| Unknown | Antiplatelet Therapy in Chronic Urticaria NCT06268470 | Chulalongkorn University | Phase 2 |
| Unknown | Role of Endothelial Cells in the Pathogenesis of Chronic Urticaria. NCT03443362 | Olivier Michel | — |
| Completed | A Study to Assess the Efficacy and Safety of AK002 in Subjects With Antihistamine-Resistant Chronic Urticaria NCT03436797 | Allakos Inc. | Phase 2 |
| Completed | Food-specific IgG4-guided Elimination Diets Improve Allergy Symptoms in Children NCT06063044 | Second Affiliated Hospital, School of Medicine, Zhejiang University | — |
| Completed | Efficacy of Antihistamine Dosing-up and add-on Treatment With H2-receptor Antagonist NCT03293225 | Ajou University School of Medicine | — |
| Unknown | Quality of Life in Patients With Chronic Urticaria NCT03163875 | Assiut University | — |
| Completed | A Worldwide Antihistamine-Refractory Chronic Urticaria Patient Evaluation in Latin America and Canada (AWARE-L NCT02626221 | Novartis Pharmaceuticals | — |
| Terminated | Chronic Urticaria - Long Term Assessment of Effects of Rupatadine NCT02358265 | Charite University, Berlin, Germany | Phase 3 |
| Completed | Cross-Cultural of the Validity, Reliability and Interpretability of Thai-version of Urticaria Control Test NCT02285049 | Mahidol University | — |
| Completed | The Validity, Reliability and Interpretability of Thai-version of Chronic Urticaria Quality of Life Questionna NCT02285023 | Mahidol University | — |
| Completed | AWARE - Chronic Urticaria NCT02435238 | Novartis Pharmaceuticals | — |
| Completed | Bilastine Updosing in Chronic Spontaneous Urticaria NCT02213367 | Charite University, Berlin, Germany | Phase 3 |
| Terminated | Dietary Treatment for Chronic Urticaria NCT02047136 | Hong Kong Sanatorium & Hospital | N/A |
| Completed | Effect of Omalizumab (Xolair) on Basophils in Patients With Chronic Idiopathic Urticaria NCT01701583 | University of Colorado, Denver | Phase 4 |
| Completed | Study of the Effects of Chinese Herbal Medicine on Chronic Urticaria NCT01715740 | Chang Gung Memorial Hospital | Phase 3 |
| Completed | Prospective Double-blind Placebo-controlled Study of the Effect of Xolair (Omalizumab) in Chronic Urticaria Pa NCT01803763 | Insel Gruppe AG, University Hospital Bern | Phase 2 / Phase 3 |
| Completed | Validation of an Urticaria Control Test NCT01614834 | Charite University, Berlin, Germany | — |
| Completed | Efficacy and Safety Study of Omalizumab (Xolair®) to Treat Chronic Urticaria NCT01713725 | Clinica Universidad de Navarra, Universidad de Navarra | Phase 2 |
| Completed | Real-life Management and Therapeutic Outcome of Patients With Chronic Rhinitis and Chronic Urticaria in Thaila NCT02000648 | Chulalongkorn University | — |
| Completed | Methotrexate in the Treatment of Chronic Idiopathic Urticaria NCT01960283 | University Hospital, Tours | Phase 3 |
| Completed | Development of an Urticaria Control Test NCT01610128 | Charite University, Berlin, Germany | — |
| Withdrawn | Hydroxychloroquine Efficacy in Chronic Urticaria NCT01073852 | Vanderbilt University | N/A |
| Completed | Levocetirizine Plus Bed-Time Hydroxyzine in the Management of Corticodependent Chronic Urticaria Versus Levoce NCT01250652 | Association Asthma, Bulgaria | Phase 4 |
| Completed | Safety Study of Levocetirizine and Fexofenadine NCT01586091 | Charite University, Berlin, Germany | Phase 4 |
| Withdrawn | Response of Urticaria to Stress Intervention NCT01047137 | University of Mississippi Medical Center | N/A |
| Completed | Stress Intervention for Chronic Urticaria NCT01111136 | University of Mississippi Medical Center | N/A |
| Completed | Pharmacokinetic Study of Bilastine in Children From 2 to < 12 Years of Age With Either Allergic Rhinoconjuncti NCT01081574 | Faes Farma, S.A. | Phase 1 / Phase 2 |
| Unknown | T Cell Function in Chronic Idiopathic Urticaria NCT01425593 | Meir Medical Center | — |
| Terminated | Efficacy and Safety of Miltefosine in Antihistamine Resistant Chronic Urticaria NCT01170949 | Marcus Maurer | Phase 2 |
| Completed | Safety Study of Levocetirizine Dihydrochloride Oral Liquid Formulation in Children Aged 1 to Less Than 6 Years NCT00619801 | UCB Pharma | Phase 3 |
| Completed | Association of Thyroid Autoimmunity and Chronic Urticaria NCT00737451 | Far Eastern Memorial Hospital | — |
| Completed | Safety Study of Levocetirizine Dihydrochloride Oral Liquid Formulation in Children Aged 6 Months to 11 Months NCT00628108 | UCB Pharma | Phase 3 |
| Completed | Effects of 5 mg vs. 20 mg Desloratadine on Skin Lesions in Patients With Chronic Urticaria (CU) NCT00598611 | Charite University, Berlin, Germany | Phase 3 |
| Completed | Efficacy and Safety of Omalizumab in Adults (18-70 Years) With Moderate to Severe Chronic Urticaria NCT00481676 | Novartis | Phase 2 |
| Completed | Natural History of Chronic Urticaria NCT01284426 | Mahidol University | — |