| Not Yet Recruiting | A Randomised Controlled Trial of ePROM-Guided Flexible Scheduling in Dermatology NCT07481019 | National University Hospital, Singapore | N/A |
| Not Yet Recruiting | Use of a Digital Psychotherapeutic App to Reduce Symptom Burden in Dermatology Patients NCT06702293 | National University Hospital, Singapore | N/A |
| Not Yet Recruiting | A Clinical Study to Assess the Safety and Effectiveness of Utixira Lotion and Utixira Tablet in Healthy Adult NCT06924840 | SAVA Healthcare Limited | N/A |
| Completed | To Compare and Evaluate the Oral Bioavailability of Bilastine 20 mg Orally Dispersible Tablet With That of Bil NCT07042828 | Humanis Saglık Anonim Sirketi | Phase 1 |
| Not Yet Recruiting | Survey on the Characteristics of Traditional Medicine Syndromes in Urticaria Patients At Le Van Thinh Hospital NCT06859736 | Do Thanh Sang | — |
| Completed | Evaluating an Artificial Intelligence Tool to Help Primary Care Doctors Diagnose Skin Conditions. NCT07428941 | AI Labs Group S.L | — |
| Completed | Using Artificial Intelligence to Help Doctors Identify Different Skin Conditions and Improve Patient Care NCT07428954 | AI Labs Group S.L | — |
| Unknown | Angioedema Biomarker Research Study NCT06210698 | Foundation For Rare Disease Research | — |
| Completed | Study Evaluating the Efficacy and Safety of Povorcitinib in Adults With Chronic Spontaneous Urticaria NCT05936567 | Incyte Corporation | Phase 2 |
| Unknown | The Association Between Human Microbiome and Vitamin D in Chronic Urticaria NCT05497596 | China Medical University Hospital | N/A |
| Completed | Safety and Efficacy of Intranasal Epinephrine After Administration of ARS -1 in Subjects With Frequent Urticar NCT05496465 | ARS Pharmaceuticals, Inc. | Phase 2 |
| Completed | GI Symptoms in Infants Fed Goat Milk-based Infant Formula NCT06755424 | Ausnutria Hyproca B.V. | — |
| Unknown | Using Doxepin for Urticaria NCT05115136 | State University of New York - Upstate Medical University | Phase 3 |
| Completed | Bioavailability and Tolerability of Fexofenadine Hydrochloride Topical Lotion 1% NCT05461456 | OrchestratePharma GmbH | Phase 1 |
| Unknown | Study on the Influence of Climatic and Environmental Factors on Respiratory Diseases in Sanya, Hainan Province NCT05330637 | Shanghai Jiao Tong University School of Medicine | — |
| Unknown | Study on the Correlation Between Intestinal Microecology and Allergic Diseases in Children NCT04938700 | Second Affiliated Hospital, School of Medicine, Zhejiang University | Phase 4 |
| Completed | COrticosteroids in acUte uRticAria in emerGency dEpartment NCT03545464 | Assistance Publique - Hôpitaux de Paris | Phase 3 |
| Unknown | A Trial to Evaluate the Effect of Vitamin D Supplementation in Patients With Chronic Urticaria NCT03991845 | Post Graduate Institute of Medical Education and Research, Chandigarh | Phase 4 |
| Terminated | A Study to Evaluate the Long-term Safety and Efficacy of Fenebrutinib in Participants Previously Enrolled in a NCT03693625 | Genentech, Inc. | Phase 2 |
| Completed | Adding a Short Burst of Corticosteroid to the Conventional Treatment of H1 Antihistamines in Emergency Departm NCT03296358 | Chulalongkorn University | N/A |
| Terminated | Role of Circulating Innate Lymphoid Cells in Allergic Disorders NCT03069495 | University of Nebraska | — |
| Completed | A Study of GDC-0853 in Participants With Refractory Chronic Spontaneous Urticaria (CSU). NCT03137069 | Genentech, Inc. | Phase 2 |
| Completed | Experimental Autologous Mesenchymal Stem Cell Therapy in Treatment of Chronic Autoimmune Urticaria NCT02824393 | Celal Bayar University | EARLY_Phase 1 |
| Completed | Animal Allergy in Korean Pet Owners, Pet-related Industry Workers, and Laboratory Animal Reseachers NCT03101618 | Gachon University Gil Medical Center | — |
| Completed | Animal Allergy in Korean Veterinary Researcher NCT02866864 | Gachon University Gil Medical Center | — |
| Unknown | High Dose Vitamin D Supplementation in Chronic Spontaneous Urticaria NCT02873364 | Shiraz University of Medical Sciences | Phase 3 |
| Completed | Monitoring Chronic Urticaria Basophil Irritability by Cytometry NCT02671006 | Centre Hospitalier Universitaire de Saint Etienne | — |
| Withdrawn | Sustained Effect of Urticaria Remission With Relatively High Dose Vitamin D Supplementation After Omalizumab D NCT02742805 | Selina Gierer, D.O. | Phase 4 |
| Completed | Effects of Bilastine on F1 Simulator Driving Performance in Patients Affected by Allergic Rhinitis and/or Urti NCT02576041 | Menarini International Operations Luxembourg SA | Phase 4 |
| Unknown | Clinical Utility Of Genetic Screening For HLA-B*1301, On Susceptibility To Dapsone Hypersensitivity Syndrome NCT02550080 | Shandong Provincial Institute of Dermatology and Venereology | Phase 4 |
| Completed | A Study of the Efficacy and Safety of Omalizumab Through 48 Weeks in Participants With Chronic Idiopathic Urti NCT02392624 | Genentech, Inc. | Phase 4 |
| Terminated | Brief Behavioral Activation Intervention for Depressed Asthma and Urticaria Patients NCT02382562 | University of Mississippi Medical Center | N/A |
| Completed | Study to Investigate Safety, Tolerability, Pharmacodynamics and Pharmacokinetics of GSK2646264 NCT02424799 | GlaxoSmithKline | Phase 1 |
| Unknown | Efficacy and Safety of Omalizumab in Patients With Severe Acute Urticaria NCT02191072 | National Taiwan University Hospital | N/A |
| Completed | A Study of Quilizumab Versus Placebo in Patients With Refractory Chronic Spontaneous Urticaria NCT01987947 | Genentech, Inc. | Phase 2 |
| Completed | An Efficacy and Safety Study of Desloratadine (MK-4117) in Japanese Participants With Chronic Urticaria (MK-41 NCT01916967 | Organon and Co | Phase 3 |
| Completed | Evaluation of the Inhibitory Effect of 5 Anti-Histamines in Urticaria NCT01940393 | Grupo de Alergología Clínica y Experimental | Phase 4 |
| Unknown | Platelet Activation in Chronic Inflammatory Skin Diseases NCT01759693 | Meir Medical Center | — |
| Unknown | PF and FeNO and Clinical Characteristics in Children Being Diagnosed Due to Suspicion of Allergic Diseases NCT01805635 | Medical University of Lodz | — |
| Completed | The Role of Vitamin D in Chronic Urticaria and Angioedema Treatment NCT01371877 | University of Nebraska | N/A |
| Completed | PK Comparisons of Bepotastine Besilate 10 mg and Bepotastine Salicylate 9.64 mg NCT01897428 | Korea University Anam Hospital | Phase 1 |
| Completed | Ilaris® in Urticarial Vasculitis - Investigation of Treatment Responses NCT01170936 | Charite University, Berlin, Germany | Phase 2 |
| Completed | Vitamin D Levels in Subjects With Chronic Urticaria and Angioedema NCT00876369 | University of Nebraska | — |
| Completed | Desloratadine 5, 10 and 20mg in Patients With Cold Urticaria NCT01444196 | Marcus Maurer | Phase 4 |
| Completed | Safety and Efficacy of Abatacept in Subjects With Chronic Urticaria Who Have Had an Inadequate Response to Ant NCT00886795 | Johns Hopkins University | Phase 1 / Phase 2 |
| Terminated | The Effect of Levocetirizine on Inflammatory Mediators in Dermatographism NCT01008592 | Wake Forest University | — |
| Completed | Autologous Serum Skin Test and Serum IL-18 Levels in Chronic Idiopathic Urticaria and Respiratory Allergic Dis NCT01091402 | Eskisehir Osmangazi University | — |
| Completed | Evaluating for Contact Allergies in Patients With Chronic Urticaria NCT00868036 | Tufts Medical Center | — |
| Completed | Observation of Side Effects and Effectiveness of Desloratadine (Aerius) Syrup in Filipino Children (Study P056 NCT00761527 | Organon and Co | — |
| Completed | Observation of Use of Claritin (Loratadine) Tablet, RediTabs, and Dry Syrup in Children (Study P05834)(COMPLET NCT00762983 | Merck Sharp & Dohme LLC | — |
| Completed | Safety of Aerius Syrup in Pediatric Patients Aged 1-5 Years Old With Allergic Rhinitis or Chronic Idiopathic U NCT00723736 | Organon and Co | — |
| Completed | A Long-Term Examination of Asthma From Childhood Through Adolescence NCT00541255 | Isle of Wight NHS Trust | — |
| Completed | Efficacy Study for the Symptomatic Treatment of Chronic Idiopathic Urticaria NCT00421109 | Faes Farma, S.A. | Phase 3 |
| Terminated | Safety Study of Rituximab (Rituxan®) in Chronic Urticaria NCT00216762 | Johns Hopkins University | Phase 1 / Phase 2 |
| Unknown | The Efficacy and Safety of Desloratadine With Levocetirizine in Treatment of Chronic Idiopathic Urticaria NCT00346606 | Lotus Pharmaceutical | Phase 4 |
| Completed | Study to Investigate the Safety and Efficacy of Alesion® in Japanese Paediatric Patients With Urticaria NCT02238249 | Boehringer Ingelheim | — |
| Completed | Evaluation of Desloratadine When Used in Patients With Either Allergic Rhinitis or Chronic Idiopathic Urticari NCT00724698 | Organon and Co | — |
| Unknown | The Efficacy of a Pseudoallergen-Free Diet in the Treatment of Chronic Idiopathic Urticaria and/or Angioedema NCT00163839 | Bayside Health | N/A |
| Completed | Significance of an Elimination and Provocation Diet in Patients With Chronic Urticaria NCT00385372 | University Hospital Muenster | N/A |
| Completed | Effect of Anti-IgE in Chronic Urticaria NCT00130234 | Johns Hopkins University | Phase 2 |
| Completed | A Comparative Double-Blind, Double- Dummy Study of Desloratadine (DL) 5 MG Once Daily, Cetirizine 10 MG Once D NCT00751218 | Organon and Co | Phase 4 |
| Terminated | Efficacy and Safety of Rupatadine 10 and 20 Mg in Chronic Idiopathic Urticaria NCT00199251 | J. Uriach and Company | Phase 3 |
| Terminated | A Comparative Double-blind, Double-dummy Study of Desloratadine (DL) 5 mg Once Daily, Cetirizine 10 mg Once Da NCT00751166 | Organon and Co | Phase 4 |
| Terminated | Anakinra to Treat Patients With Neonatal Onset Multisystem Inflammatory Disease NCT00069329 | National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) | Phase 1 / Phase 2 |
| Terminated | A Study of the Use of Methotrexate in the Treatment of Chronic Idiopathic Urticaria NCT00189878 | Barnsley Hospital | Phase 2 |
| Completed | Study to Compare the Efficacy and Safety Between Levocetirizine and Loratadine for Chronic Idiopathic Urticari NCT00525382 | UCB Pharma | Phase 3 |
| Completed | An Open-Label Study of the Effects of Desloratadine (Aerius.) Treatment on the Quality of Life of Patients Wit NCT00795522 | Organon and Co | Phase 4 |
| Completed | A Comparison of Aerius Continuous Treatment Versus Aerius PRN for Chronic Idiopathic Urticaria (Study P03147) NCT00783354 | Organon and Co | Phase 4 |
| Completed | How Desloratadine (Clarinex, Aerius) Affects Quality of Life in Patients With Chronic Idiopathic Urticaria (Ha NCT00795158 | Organon and Co | Phase 3 |
| Terminated | Efficacy of Rupatadine 5, 10 and 20 mg in Chronic Idiopathic Urticaria NCT00199238 | J. Uriach and Company | Phase 2 |
| Terminated | Ultraviolet (UVA and UVB) Light Therapy in the Treatment of Inflammatory Skin Conditions NCT00129415 | University of Michigan | Phase 1 / Phase 2 |
| Completed | A Trial of Point of Care Information in Ambulatory Pediatrics NCT00368823 | University of Washington | Phase 3 |
| Completed | Induction of Suction Blisters in Patients With Urticaria, Blistering Diseases, Inflammatory Dermatoses and Neo NCT00001150 | National Cancer Institute (NCI) | — |