View clinical trials related to Hayfever.
Filter by:Intranasal corticosteroids are accepted as safe and effective first-line therapy for allergic rhinitis, especially in treatment of persistent symptoms. Budesonide, a non-halogenic glucocorticoid, is widely used in the management of inflammatory mucosal diseases like chronic obstructive pulmonary disease, asthma and allergic rhinitis. It is a highly fat-soluble substance with low water solubility and is presented as dispersion in marketed nasal sprays, like Rhinocort aqua 64. The maximum therapeutic efficacy of Rhinocort aqua is obtained after an application period of 7 to 14 days. In Budesolv, the solubility of budesonide is considerably increased suggesting that the same therapeutic efficacy can be reached with a lower dose. Better bioavailability of the dissolved drug promise an earlier onset of therapeutic efficacy. The current trial is undertaken to demonstrate these two effects. Subjects suffering from grass pollen allergic rhinitis will be challenged with grass pollen in a challenge chamber. Allergic subjects will be treated with two actuations (50 μl) of respective study treatment into each nostril once daily for 8 days. The total daily budesonide dose will be 40 μg per subject for Budesolv 10 and 256 μg per subject for Rhinocort® aqua 64. The primary objective of the study is to show non-inferiority of Budesolv 10 to Rhinocort® aqua 64. On day 8 grass pollen allergic patients will be challenged with grass pollen over a period of 6 hours and subjective nasal symptoms (congestion, sneezing, itching, rhinorrhea) as well as objective symptoms (nasal airflow, nasal secretion) will be assessed every 15 minutes. The second objective of the trial is to demonstrate an early on-set of therapeutic efficacy of Budesolv 10 compared to Rhinocort aqua. On day 1, grass pollen allergic patients will be challenged with grass pollen allergen in the challenge chamber over a period of 6 hours. After 1 hour 45 minutes, patients will receive their first dosage of the respective nasal spray treatment. During the 6 hour grass pollen challenge, subjective and objective endpoints will be measured every 15 minutes. To eliminate an individual bias based on expectations, the effect and onset of action is also compared to the effects of a suitable placebo. The same set of study participants will receive all three interventions in three consecutive treatment periods.
This is a phase 2, randomized, double-blind, placebo-controlled, parallel-group, 2-week, multi-center, dose-range-finding study in male or female patients (12 years and older) with SAR.
This is a placebo controlled double-blind single center study initiated and sponsored by CALPIS, Inc., Japan, and CALPIS U.S.A., Inc., Torrance, CA. The overall objective of this study is to establish the benefit of a bacterial product, Lactobacillus acidophilus strain L-92 (CALPIS U.S.A., Inc., Torrance, CA), in patients with allergic rhinitis.
This is a non-drug, biomarker study to assess the utility of the model of repeated nasal allergen challenges in subjects with atopic rhinitis as a method of inducing an increased response to inhaled allergen, which will more closely resemble the responses seen during the hayfever season.
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.
The objective of the study is to document the objective immunological effects of SLIT on the nasal mucosa. Better understanding of these immunological pathways, in which this widely practised clinical therapy is likely to work, can only benefit the overall outcome of this, more patient friendly, therapy and it will demonstrate the effects of SLIT on the allergic reaction, with objective parameters, in the nasal tissues showing it to be a true etiological treatment of allergy.
The purpose of the study is to compare the efficacy and safety of an investigational nasal spray compared with placebo nasal spray in the treatment of seasonal allergic rhinitis. Allergic rhinitis is an inflammatory disorder of the upper airway that occurs following allergen exposure. The focus of this study, seasonal allergic rhinitis (SAR), is one type of allergic rhinitis that is triggered by the pollen from trees, grasses, and weeds. Commonly referred to as "hay fever", it is characterized by sneezing, nasal congestion and pruritus, rhinorrhea, and pruritic, watery, red eyes.