Active clinical trials for "Urticaria"

The study is designed to assess the efficacy and safety of monthly injections of Omalizumab 150 mg for 3 consecutive months, in patients with chronic idiopathic urticaria, unresponsive to convetional therapy by antihistamins or oral corticosteroids.

Each patient will commence the study with a one month run-in period in which he/she will be administered individual patient Standard of Care :anti-histamines and steroids as needed plus placebo (olive oil). After the run-in period, doses of CBD will be incresed during the first six weeks of the study. At the conclusion of the six weeks CBD dose escalation segment of the study, if the 300 mg CBD dose level is deemed safe for two weeks with standard of care doses of anti-histamines, patients will continue receiving 300 mg CBD with Anti-histamines as needed for an additional follow-up period of three month. Each patient will serve as his/her own control.

Levocetirizine (Xyzal®), the active levorotatory enantiomer of cetirizine (Zyrtec®), is a FDA-approved drug used in the treatment of symptoms associated with seasonal and perennial allergic rhinitis and chronic idiopathic urticaria. The parent compound, cetirizine was shown to be effective against experimental dermatographism, however no study has been conducted so far on the effect of levocetirizine on the inhibition of dermatographism. It is known that cetirizine is a mast-cell stabilizer and decreases histamine levels and the number of tryptase positive mast cells. Cetirizine inhibits the production of interleukin 8 (IL8) and leukotriene B4 (LTB4) by immune cells - two potent chemoattractants - and induces the release from monocytes of prostaglandin E2 (PGE2), a suppressor of antigen presentation and MHC class II expression. However, the effects of the most active enantiomer levocetirizine on these inflammatory mediators have not been evaluated so far. Therefore, we aim to conduct a study in humans with dermatographism and chronic idiopathic urticaria to evaluate the effect of levocetirizine on the above-mentioned mediators. The study will involve the use of skin microdialysis, a minimally invasive technique to measure inflammatory mediators in the extracellular space in dermis.

This study involves investigating the effects of a pseudoallergen-free (active) diet compared with a control (placebo) diet in the treatment of Chronic Idiopathic Urticaria (CIU) and/or Angioedema. The hypothesis is that over a four-week intervention period, the pseudoallergen-free diet will be more effective than the placebo diet in reducing the frequency and severity of CIU and/or Angioedema.

Objective: To compare the efficacy of desloratadine 5mg (Denosin®) and levocetirizine 5mg (Xyzal®) once daily in the treatment of patients with CIU over 6 weeks. Trial design: Randomized, Double-Blind, Active-Controlled, Parallel-Group Study. Primary end point: To evaluate the change in average AM/PM reflective pruritus score from baseline recorded in the subjects' diaries during the first two weeks of the treatment. Secondary Objectives: To assess the efficacy and safety of desloratadine 5mg (Denosin®) and levocetirizine 5mg (Xyzal®) once daily in the treatment of subjects with CIU over 6 weeks.

This study is a randomized, controlled, single-center clinical study to evaluate the short-term efficacy of low-dose Interleukin-2 injection as an add-on therapy for the treatment of patients aged 18-75 who have been diagnosed with CSU and remain symptomatic despite oral antihistamine treatment .

Mastocytosis is a rare condition characterized by an accumulation of mast cell cells in one or more organs such as the liver, bone marrow, spleen and intestines. Its prevalence in the general population is 1 in 10,000. This pathology is due to the proliferation of a mast cell clone and the excessive release of inflammatory mediators which lead to abnormal tissue infiltration. To date, there are only a few cases reporting ocular and orbital manifestations of mastocytosis. Our prospective, interventional and single-center study consist in describing the ocular functional manifestations and ocular surface abnormalities of patients with systemic and cutaneous mastocytosis.

This Study is to evaluate the utility of prospective HLA-B*1301 screening on the incidence of dapsone hypersensitivity syndrome (DHS) in 3130 previously Dapsone(DDS)-naive patients. Those patients include allergic cutaneous vasculitis, urticaria, psoriasis, acne, bullous skin diseases, sterile pustulosis, leprosy, pneumocystis pneumonia and any other patients who need dapsone administration. The study has two (co-primary) objectives: i) to determine if screening for HLA-B*1301 prior to DDS-containing treatment results in a lower incidence of clinically-suspected DHS versus current standard of care (no genetic screening) and ii) to determine if screening for HLA-B*1301 prior to DDS-containing treatment results in a significantly lower incidence of immunologically-confirmed DHS versus current standard of care (no genetic screening or patch testing). The study consists of up to a 5-day screening period, a randomised observation period (Day 1 through Week 6) and, for subjects experiencing a suspected DHS and a subset of DDS-tolerant subjects, an epicutaneous patch test (EPT) assessment period. Eligible subjects will be randomised to one of two study arms: a Current Standard of Care Arm (no prospective genetic screening: Control) and a Genetic Screening Arm (prospective genetic screening: Case). Subjects identified as HLA-B*1301 positive in the prospective Genetic Screening Arm will not receive dapsone and will be excluded from further study. Subjects who experience suspected DHS during the 6-week observation would be withdrawn from dapsone and undergo EPT patch testing 6 weeks later.

• This study is a multicenter, randomized, double-blind, parallel-group, positive-controlled phase III study to evaluate the therapeutic equivalence of SYN008 versus omalizumab for injection (Xolair®) in the treatment of CSU patients who remain symptomatic despite antihistamine treatment.

Chronic spontaneous urticaria is an inflammatory disease which is characterized with intermittent or daily urticaria. This diseases lasts for more than 6 weeks. Several recent studies have suggested a role for vitamin D in modulation of immune system and pathogenesis of chronic urticaria.