Active clinical trials for "Rhinitis, Allergic"

This study is in patients with seasonal allergic rhinitis (SAR) and will compare the effect versus placebo of repeat doses of intranasal GSK256066 using the Vienna Challenge Chamber. GSK256066 is a potent and highly selective phosphodiesterase-4 (PDE4) inhibitor, currently in development by GSK for the treatment of allergic rhinitis, asthma and COPD. Subjects will be selected on the basis that they display a defined moderate response to the pre-determined dose used. This study aims to explore the actions of repeat doses of intranasal GSK256066 in patients with Seasonal Allergic Rhinitis in the Vienna Challenge Chamber compared to placebo. 12-lead ECG, vital signs and adverse event enquiries will be made throughout the study. Nasal examination, symptom scores (TNSS), nasal lavage, nasal scrape and allergen challenge assessments will also be performed at various time points throughout the study.

Controlled conditions of the EEU allow a reliable assessment of the efficacy and a determination of the action onset, action intensity and duration of effect of levocetirizine and cetirizine in order to establish the relative efficacy of these two drugs available for the treatment of SAR.

The primary objective of the study was to characterize the difference in prepubescent growth velocity in children 3 to 9 years of age with perennial allergic rhinitis (PAR) treated with triamcinolone acetonide (TAA) nasal spray (NASACORT® AQ 110 μg treatment group) or placebo (NASACORT® AQ placebo group) for 12-months. The secondary objectives were to compare the following in prepubertal participants treated with TAA nasal spray versus placebo: the 24-hour urinary free cortisol levels and the cortisol/creatinine ratio (to measure the Hypothalamic-Pituitary Adrenal [HPA] axis function) the rate of treatment-emergent-adverse-events (TEAE) global efficacy rated by the investigator and the participant separately the rate of use of rescue medication during the study

This study is designed to assess the safety and tolerability of single, escalating oral doses and repeat oral doses (7 days, once daily) of GSK835726 in healthy male subjects

To assess the safety of long-term use of cetirizine dry syrup in children with perennial allergic rhinitis.

Various chemical modifications of allergens have been attempted to enhance efficacy, improve safety, and foster compliance with IT. These approaches have been unsuccessful - in that the allergenicity and immunogenicity have either decreased, or increased in tandem, with no resultant efficacy: safety benefit ratio. This study utilizes an adjuvant approach in which synthetic immunostimulatory DNA is conjugated to ragweed allergen in an attempt to modulate both the clinical and immunologic allergic response to ragweed exposure in ragweed-allergic patients with seasonal rhinitis.

There has been considerable debate over the last 30 years about the interaction between asthma and parasitic infection. It has been suggested that at least part of the reason for the increasing prevalence of asthma in the developed world is a decrease in parasite infections resulting from improved living conditions with economic development. Our previous studies in Ethiopia suggest that hookworm infection may be particularly important in this process. To establish definitively whether parasites can protect against allergic disease, and specifically asthma, ultimately requires a randomised clinical trial of parasite infection in patients with asthma. We, the researchers at the University of Nottingham, have completed a study in normal volunteers to establish the dose of hookworms necessary to generate infection at the level shown to be protective in population surveys, and shown that infection is well tolerated. We now propose two randomised placebo-controlled double blind clinical trials. The first will test the effectiveness of hookworm infection in reducing symptoms in allergic patients with rhinitis, and will also serve to allow us to check the likely safety of hookworm infection in asthma. Assuming that the results of this study are favourable, we will then carry out a trial of hookworm infection in asthma. We will also take the opportunity during both of these studies to investigate the cellular mechanisms of the effect of hookworm infection on the immune system.

To investigate the safety and tolerability of successive single rising doses of SLIT in subjects with allergic rhinitis and to investigate the safety and tolerability of multi high dose regimens of SLIT in subjects with allergic rhinitis.

Evaluate the relative efficacy of four dosing regimens of bilastine tablets (given either once or twice per day) versus placebo in patients with Seasonal Allergic Rhinitis (SAR) in the Mountain Cedar season in south Texas and Oklahoma based on the mean change from baseline in Reflective Total Nasal Symptom Scores (TNSS) assessed over 14 days of treatment.

This study will last up to 6 weeks. Subjects will visit the clinic up to 5 times. Certain clinic visits will include a physical examination, medical history review, and lung function tests. All study related medications and medical examinations will be provided at no cost to the subject. The drugs used in this study are approved for the age group under study.