Active clinical trials for "Rhinitis"

In a previous study the investigators found that many bakery workers were sensitized to storage mites, and many had rhinitis symptoms. The role of storage mites as an occupational allergen with clinical relevance has been questioned, and the investigators wanted to investigate whether a nasal provocation with a storage mite extract would trigger symptoms and objective signs of rhinitis in bakery workers and a control group.

To determine prevalence of local allergic rhinitis (LAR) To evaluate clinical characteristic and severity of local allergic rhinitis To measure changing of tryptase and Specific IgE for Dermatophagoides pteronyssinus (Dp) after nasal allergen provocation test (NAPT)

Assessment of skin reactivity by skin prick tests to synthetic peptides derived from the major birch allergen bet v 1, in subjects allergic to birch pollen.

The investigators hypothesize that treatment with QNASL will reduce nasal mucosal inflammation induced by the allergy season and prevent the changes in the microbiome caused by the allergy season.

The clinical relevance of an allergen-specific sensitization is proven e.g., by allergen challenge tests in clinical routine. Several protocols for different challenge tests such as nasal (NPT), bronchial (BPT) or conjunctival provocation test (CPT) have been proposed. Beneath others, the CPT is broadly used in both clinical trials and routine because of its feasibility. However, there is no internationally harmonized standard regarding the clinical interpretation of CPT results as well as a lack of validation of a specific outcome score. Therefore, this trial aims to investigate and validate a new scoring system for CPT results in order to provide this test as a useful method in future clinical trials.

Sixty subjects will take part in this study. The subjects will be randomly assigned in a 1:1 ratio between the two arms of study. (Group A: Solution of Luffa Nasal Operculate 5mg/mL, Group B: saline). The subjects will use the study medication or comparative, according to their randomization, for a treatment period of 3 to 7 days. A follow-up visit will be made 15 days after initiation of treatment.

Double blind protocol treatment of 2/3 of the patients with omalizumab and 1/3 placebo administer for 4 months. Patients selected for the study must have both aspirin exacerbated respiratory disease and allergic asthma and rhinitis. They must also have completed aspirin desensitization and be taking aspirin on a daily basis for the treatment of AERD.

A probiotic (Lactobacillus rhamnosus GG) supplement to pregnant women the last four weeks of pregnancy and three months after birth is expected to give a 40% reduction in risk of atopic sensitisation and allergic disease at two years of age, compared to placebo.

Gastroesophageal(GERD) reflux disease is a very common problem among pediatric population and has be proved to contribute in numerous otolaryngological manifestations. Trails of empirical treatment of antireflux medications is often used as a diagnostic test. However, the investigators believe GERD can cause rhinitis and nasal obstruction. Nasonex is considered as first line treatment for nasal obstruction. Hence, the proposed study aims to define the relationship between GERD and rhinitis using randomize control trial where one group of patients will receive nasonex and placebo, while the other group will receive nasonex and antireflux medications.

The objective of this study is to determine the biologic activity of a Dermatophagoides pteronyssinus allergen extract in histamine equivalent prick (HEP) units, in order to be used as in-house reference preparation (IHRP).