View clinical trials related to Chronic Urticaria.
Filter by:This clinical study was designed based on our hypothesis that vitamin D plays an important role in chronic urticaria and that high dose supplementation with vitamin D in subjects with chronic urticaria will improve clinical response. This clinical study will investigate our hypothesis in three Specific Aims: 1. Determine whether high dosing vitamin D supplementation (4000 IU/day) reduces medication usage (primary outcome) and urticaria severity score (secondary outcome) in subjects with chronic urticaria as compared to low dosing (600 IU/day). 2. Determine if high dosing of vitamin D (4000 IU/day) is safe and well-tolerated in subjects with chronic urticaria with or without baseline vitamin D deficiency. 3. Investigate whether there is an association with serum 25-hydroxyvitamin D levels, vitamin D receptor mRNA expression, and chronic urticaria severity.
The purpose of this study is to examine the natural history of chronic urticaria in children and to identify the predictors for chronic urticaria remission.
Allen Kaplan is a prominent American allergist with the reputation of leader in the field of chronic urticaria. He advocates treatment with first generation hydroxyzine, which he considers at least as effective as modern second generation H1-blockers in suppressing the symptoms of difficult-to-treat / systemic-steroid-dependant cases of chronic urticaria. He further speculates that hydroxyzine may have the advantage to better suppress itch and improve nighttime sleep. This has prompted many practitioners around the world to believe that adding hydroxyzine to the treatment regimen at bed time at night may be beneficial to patients. At the same time European guidelines indicate modern second generation H1-blockers in higher than conventional doses as drugs of choice for such cases. However, there is no evidence from clinical trials addressing this controversy. The investigators' previous studies suggest that levocetirizine at quadruple doses may be beneficial in difficult to treat urticaria by reducing lesions and itch, improving quality of life and night time sleep, while not causing day time somnolence. First generation H1-receptor antagonists and hydroxyzine among them are known to penetrate the blood / brain barrier and to cause sedation. The question stays whether this sedation is beneficial to the subjects with chronic urticaria at night, whether it has any hang-over unwanted effects the following day and whether this has any influence on the overall urticaria-specific quality of life.
Stress and chronic urticaria has been linked. The purpose of the study is to evaluate a patients chronic urticaria and stress levels before and after he/she goes through six sessions designed to help that participant manage his/her stress.
The conduct of this clinical trial is aimed at determining the most suitable dose regimen for children in different age groups, and secondarily to assess the safety and tolerability of bilastine in this paediatric population subset.
The objective of this study is to perform an exploratory analysis to determine if a possible relationship between vitamin D and chronic urticaria and/or angioedema exists. The study hypothesis is that vitamin D deficiency is associated with chronic urticaria and/or angioedema.
This open-label study is being conducted to determine the effect of DL treatment for CIU on symptom and disease severity, quality of life, daytime functioning, and quality of sleep.
This double-blind pilot study was conducted to establish the best way of using desloratadine treatment to protect quality of life of chronic idiopathic urticaria (CIU) patients, after an initial 4-weeks of daily treatment: prolonging systematic daily treatment or as needed (PRN; in the case of symptoms).
This study was conducted to evaluate the safety and tolerance of desloratadine after 5 weeks of repetitive dosing in children ages 2 to 12 years old with allergic hypersensitivity or chronic hives. All of the subjects enrolled in this trial were previously identified in an earlier trial to be poor metabolizers of desloratadine.
This was a randomized, double-blind, parallel-group, multicenter study that used both an active control (cetirizine) and a placebo control to evaluate desloratadine 5 mg once daily during a 28-day treatment period. The active treatments and placebo were allocated in a 2:2:1 ratio.