View clinical trials related to Chronic Urticaria.
Filter by:Observation study of patients with chronic rhinitis or chronic urticaria in Thailand
Chronic urticaria is defined by urticarial lesions persisting at 6 weeks. The cause is not found in about 75% of cases (chronic idiopathic urticaria). The gold standard treatment consists of anti-H1 molecules. In severe cases, refractory to anti-H1, few therapeutic alternatives exist. Methotrexate, which is not expensive and often prescribed by dermatologists, has been efficiently tried in an open study on severe chronic idiopathic urticaria, and also in few case reports.
This is a study to evaluate the efficacy and safety of desloratadine (MK-4117) in Japanese participants with chronic urticaria. The primary hypothesis is that the efficacy of desloratadine 10 mg and 5 mg is superior to placebo as based on the change from Baseline in the sum score of pruritus/itch and rash as assessed by the Investigator at Week 2.
The aim of this study is to investigate the pathophysiological mechanism of omalizumab in patients with documented chronic urticaria who have complaints under standard antihistamine treatment. With this study the investigators will assess the correlation between Fc-IgE receptor downregulation as well as functionality and clinical response to omalizumab treatment in patients with chronic urticaria. This may be an approach for other diseases as well, where Fc-IgE receptor crosslinking are essential. The treatment time is set for a total of 4 monthly applications of omalizumab. According to the dosage recommendations of recent studies, fixed doses of 300 mg omalizumab are administered subcutaneously.
Urticaria is a common dermatology disease. Urticaria affects nearly 25% of the population at some time in their lives. Recurrent skin itch, insomnia, daily activities limitation greatly affect the quality of life. Some patient with chronic urticaria who had poor response to antihistamine may need second line medication. In United States, up to 54% chronic urticarial patient use oral corticosteroid to control. However, long-term use of oral steroids still needs to consider the impact of its side effects. Therefore, patients may seek for alternative medicine as an adjuvant therapy. It is still lack large-scale clinical trials in Traditional Chinese Medicine research of chronic urticarial. The aim of this study is to conduct a double-blind, randomized clinical trial to analyze the effectiveness of Chinese medicine in chronic urticaria and its possible mechanisms.
Chronic urticaria can be defined as the occurrence of widespread daily or almost daily wheals for at least 6 weeks, which may be accompanied by angioedema. While the wheals are transient, the resolution of angioedema is slower than wheals and could take up to 72 hours. The natural course of chronic urticaria is self-limited, with spontaneous remissions and occasional relapses. The investigators calculated a 0.6% (95% CI(Confidence Interval): 0.4-0.8) prevalence in a population study. It has a great impact on patients' quality of life. In a recent national survey on patients attending Allergy Department, chronic urticaria was the disease with greater impact on mental quality of life out of all allergic diseases. In spite of the high morbidity of this disease and the impact in quality of life, there is no available treatment. Last guidelines recommend initiating treatment with antihistamine and if there is no response to increase the dose off-label up to four-fold; systemic corticosteroids are also recommended in short tapering and if no response, the only treatment with clinical evidence to be employed is cyclosporine. As additional data, the treatment cost of this disease has been calculated in 2047$/year. In past years it has been employed the monoclonal humanized anti-Immunoglobulin IgE (iGE) antibody (Omalizumab) to treat moderate to severe asthma with good results. The rationale for this approach in chronic urticaria is that Omalizumab inhibits the binding of IgE to the high affinity IgE receptor (FceRI) which decreases the FceRI expression on the surface of mast cells and basophils so that immunoglobulin G cross linking of the alpha subunit and basophil degranulation is prevented.The hypothesis the investigators are working on is that monoclonal IgE antibody Omalizumab could be effective in controlling chronic urticaria symptoms in patients non respondent to conventional therapy. The investigators hypothesize that Omalizumab is able to revert the basophil or mast cell activation present in chronic urticaria.
This study looks at changes in cell proteins in people with chronic hives treated with omalizumab.
The aim of this study is to validate a previously developed patient reported outcome instrument (in project UCT-D) to assess disease control in chronic urticaria patients (Urticaria Control Test - UCT) of age 12 and older.
The aim of the project is to develop a patient reported outcome instrument to assess disease control in chronic urticaria patients (Urticaria Control Test - UCT) of age 12 and older.
This Study is to comparison of Efficacy and Consistency of Action of Levocetirizine 5 mg once daily with Fexofenadine 60 mg twice daily in the histamine induced wheal, flare and itch Response.