View clinical trials related to Seasonal Allergic Rhinitis.
Filter by:The ragweed Ambrosia artemisiifolia is spreading in northern Europe due to climate change. The pollen are considered highly allergenic and might trigger allergy symptoms at much lower concentrations than e.g. grass or birch pollen. This study aims to determine threshold concentrations for ragweed and birch pollen in patients with seasonal allergic rhinitis. Participants will be exposed in an allergen challenge chamber that was technically modified to maintain very low and stable pollen concentrations for several hours. The study design is adaptive, where the pollen concentrations are escalated or de-escalated based on interim analysis of resulting allergic symptoms.
The trial will be conducted as a prospective, randomized, multinational, multicenter, double-blind, placebo and active controlled trial in 4 parallel-groups of patients suffering from seasonal allergic rhinitis.
The purpose of this allergen challenge study is to assess the efficacy of IRL201104 compared with placebo in adult participants with seasonal allergic rhinitis.
An open label, randomized, three-treatment, three-period, crossover, single dose study, to investigate drug-drug interaction and relative bioavailability between the fixed dose combination Azelastine hydrochloride / Beclomethasone dipropionate (140/100 μg Azelastine hydrochloride / Beclomethasone dipropionate) Nasal Spray, and Beclomethasone Dipropionate Nasal Spray (100 μg Beclomethasone Dipropionate) in the test vehicle, and the commercially available product, RinoClenil® Nasal Spray (100 μg Beclomethasone Dipropionate), in healthy subjects under fasting conditions.
Allergic rhinitis (AR) is an immunoglobulin E-mediated inflammatory disease1 caused by hypersensitivity of the immune system to an allergen, affecting 100 million people in Europe 2and 400 million of the global population.The etiology of AR is multifactorial, resulting primarily from genetic predisposition, immunological response, and environmental pollutants.AR traditionally has been classified as seasonal (SAR) or perennial (PAR) depending on the causes and duration of symptoms. Some patients with AR prefer complementary and alternative medicine for their symptoms, with nearly 20% receiving acupuncture. According to the updated practice parameter of rhinitis in 2020, the use of acupuncture for the treatment of AR was not recommended due to a lack of well-controlled studies. The sphenopalatine ganglion (SPG), located under a thin (1-2 mm) layer of mucosa in the pterygopalatine fossa, consists of sensory fibers that innervate the nasopharynx, nasal cavity, and palate.Several studies have reported the benefit of SPG stimulation in chronic cluster headache and acute ischaemic stroke. Compared with traditional acupoints selected on basis of traditional meridian theory, acupuncture at SPG(inserting a needle through SPG acupoint (near ST7, Xiaguan) to reach and directly stimulate the SPG) may help patients ameliorate nasal symptoms immediately and improve quality of life by increasing sympathetic nerve excitability, but the evidence is inconclusive. We have designed this three-armed, randomized trial to investigate the efficacy and safety of acupuncture at SPG for the treatment of SAR. We hypothesize that acupuncture at SPG plus rescue medication is superior to sham acupuncture plus RM and RM alone in the treatment of SAR.
Nasal irrigation (NI) is recommended as an add-on therapy in patients with allergic rhinitis (AR). The primary purpose of this study was to evaluate the clinical effectiveness of adding hyaluronic acid (HA) solution and normal saline (NSS) to nasal steroid (NS) therapy as add - on therapy in improving quality of life and reducing nasal symptom scores of children with seasonal AR (SAR) with regards to NS therapy. Our secondary purpose was to demonstrate the effects on eosinophil count in nasal cytology (NEC), nasal airflow (NAF), and resistance (NAR).
Objective biomarker of allergic rhinitis severity is necessary for monitoring disease severity and response to treatment in clinical setting and for research. We believe that psychological factors are the missing link between patient-perceived severity of allergic rhinitis and objective biomarkers. In our pilot study, several psychological factors were studied in relation to patient reported outcomes for severity of allergic rhinitis.
The purpose of this study is to analyze nasal samples for the presence of biomarkers of allergic inflammation as well as cold and flu infections, and compare these samples both in and out of an individual's active allergy season. 40 subjects who suffer from seasonal allergies will be recruited and seen both in and out of allergy season, and 10 healthy controls. Nasal epithelial lining fluid (NELF,) collected by placing small filter papers into the nostrils, blood for analysis and a cold/flu swab will be collected at each study visit.
This study is to assess the onset of action of fixed drug combination of azelastine hydrochloride and fluticasone propionate nasal spray (Dymista) in treating the nasal symptoms of seasonal allergic rhinitis (SAR) induced by an allergen challenge in an Environmental Exposure Unit (EEU).
This prospective multicentric academic NAPT study aims to compile a database of all patients who initiate immunotherapy. The NAPT will take place before, during and after AIT to evaluate the cost and effectiveness of the treatment. The study consists of 4 visits and 2 telephone contacts that are repeated annually for 3 years. This study will be conducted in 2 hospitals: UZ Leuven and AZ ST. Jan Brugge on the consultation Ear, Nose and Throat Diseases (ENT) and the department of Internal Medicine / Allergology