Active clinical trials for "Rhinitis, Allergic, Perennial"

The purpose of this study is to collect information on unexpected adverse reactions (ADRs), how often ADRs occur, and factors that can affect the safety and effectiveness of Claritin (loratadine) when used in children. Patients will be observed while they are taking Claritin, and ADRs and symptom scores will be recorded. At the end of treatment, improvement in symptoms will be recorded. Post-marketing surveys are not considered applicable clinical trials and thus the results of this survey will not be posted at its conclusion. The results will be submitted to public health officials as required by applicable national and international laws.

The objective of this study is to determine whether there is a relationship between interferon-gamma levels and the incidence of viral respiratory infections in allergic children treated with allergy immunotherapy as compared to those treated with standard medical care (nasal steroids, antihistamines) over a 1-year period. The hypotheses to be tested are 1) interferon-gamma levels will be significantly increased 3, 6, 9 and 12 months in allergic children treated with allergy immunotherapy as compared to those treated with standard medical care, 2) the incidence of viral respiratory infections will be reduced at 3, 6, 9 and 12 months in allergic children treated with allergy immunotherapy as compared to those treated with standard medical care.

Investigator examines the past prescription patterns and the reasons for the change of prescription to Monterizine capsules for Perennial Allergic Rhinitis patients with Asthma who will be taking Monterizine capsules to treat allergic rhinitis. After being given Monterizine capsules, Investigator evaluates the therapeutic effectiveness and safety for 3 months (or 6 months).

This study seeks to document differences in nasal irritant sensitivity within the population. The investigators are interested in knowing whether age, gender, and allergy status (nasal allergies) predict nasal irritant sensitivity. This is important in understanding symptom reporting patterns in air pollution situations (particularly in so-called "problem buildings"), as well as in understanding the reflex mechanism of a response of the nose to irritants (e.g., nasal congestion).

Previous publications have indicated that Allergic Rhinitis (AR) patients suffering from both ocular and nasal symptoms have a greater burden of illness and lower quality of life than patients suffering from nasal symptoms alone. Fluticasone furoate (FF) acts against both nasal and ocular symptoms. The purpose of this study was to evaluate the differences in symptom control (both perceptually and objectively) and resource use for patients with current seasonal AR.

The purpose of this study is to determine the proportion of participants that initiate allergen immunotherapy (AIT) upon the recommendation of their physician and the proportion of participants that persist with their AIT throughout the recommended course.

This is an inception cohort study that analyses data from an administrative medical records database. The two inception cohorts are: 1) patients initiated on intranasal FP and 2) patients initiated on another INS (not FP). The candidates for the inception cohorts did not use any intranasal steroid in the year prior to initiation.

Longitudinal, observational study to assess the short-term (test re-test) and mid-term (within the span of 28 days) repeatability of active anterior rhinomanometry (AAR) measures on 4 parallel groups of children with different rhinitis phenotypes, and 1 group of control (healthy) children. Secondary objectives are: i) assessing of association between AAR, exhaled FeNO (eFeNO) and nasal FeNO (nFeNO); ii) assessing association between objective measurements (AAR, eFeNO and nFeNO) and subjective measurements (Total 5 Symptom score, T5SS). The study is intended to obtain useful information for improving rhinitis management.

The purpose of this study is to determine the appropriate concentration of diagnostic reagent of house dust mite (Dp) to be used in diagnostic allergy skin prick test among Thai population with allergic rhinitis.