Clinical Trials Logo
  1. Home
  2. Allergic Rhinitis
  3. NCT06459219

Factors Determining Tolerance to Nasal Allergen Exposure With Advanced Age in a Subset of Birch Pollen Allergic Subjects — AllergyAge  

Allergic Rhinitis Clinical Trial

Official title:
Factors Determining Tolerance to Nasal Allergen Exposure With Advanced Age in a Subset of Birch Pollen Allergic Subjects

Clinical Trial Summary

Nasal allergen study in patients aged 60+ with or without current respiratory allergy

Clinical Trial Description

Allergic rhinoconjunctivitis (AR) represents a major health burden affecting an estimated 1.4 billion people globally. It is characterized by inflammation of the nasal mucosa and conjunctiva in response to exposure to airborne allergens (e.g. pollen, dust mites). Interestingly, with advanced age, prevalence of AR decreases suggesting that a subset of allergic patients is able to develop tolerance towards allergens resulting in absence of symptoms. Understanding this mechanism governing natural tolerance development in the context of allergy is critical for the development of new therapeutic approaches and thus the aim of the proposed study. To address this question, we plan to conduct a nasal allergen challenge study in patients aged 60+ who (1) are currently suffering from birch pollen allergy, (2) have a history of birch pollen allergy but absence of symptoms for at least three seasons and (3) never suffered from birch pollen allergy. After signing informed consent and fulfilling selection criteria, 38 patients per group will be intranasally challenged with birch pollen extract outside of the birch pollen season (October) and followed closely for up to 10 weeks to assess clinical parameters, cytokines, allergen-specific Immunoglobulin (Ig) levels as well as inflammatory cell subsets under controlled pollen exposure. In summary, this study will yield important information on the mechanisms underlying natural tolerance development in respiratory allergy with advanced age. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT06459219
Study type Observational
Source Medical University of Vienna
Contact
Status Not yet recruiting
Phase
Start date October 1, 2024
Completion date October 1, 2028
View Details
See also
  Status Clinical Trial Phase
Recruiting NCT05080322 - Efficacy and Safety of On-demand and Continuous Administration of Nasal Spray in the Treatment of Allergic Rhinitis Phase 4
Recruiting NCT06028490 - A Study of IL4Rα Monoclonal Antibody in Patients With Uncontrolled Seasonal Allergic Rhinitis. Phase 2
Completed NCT04388358 - Traditional Chinese Medicine for the Treatment of Perennial Allergic Rhinitis on Gut Microbiota and Immune-modulation N/A
Recruiting NCT04202263 - Assessment of Suppression of Cutaneous Allergic Responses and Pruritis by Topical Minocycline Phase 2
Completed NCT04078009 - Standardising Nasal Allergen Challenge in Adult With Hay Fever N/A
Completed NCT03644680 - Changes in Adaptive Immune Responses and Effector Cell Responses Upon Nasal Allergen Exposure - a Pilot Study N/A
Completed NCT04541004 - Adolescent Mite Allergy Safety Evaluation Phase 3
Recruiting NCT05378594 - HDM and Silver Birch NAC Standardisation N/A
Not yet recruiting NCT05684380 - Efficacy and Safety of MAZ-101 in the Treatment of Persistent Allergic Rhinitis (PER) Phase 3
Completed NCT02910401 - Clinical Response to Rhinovirus Challenge Phase 2
Completed NCT02943720 - ATIBAR - Efficacy and Safety of Two Doses of AllerT in Patients Allergic to Birch Pollen Phase 2
Not yet recruiting NCT01014325 - Safety and Efficacy Study With Allergen Extracts of House Dust Mites for Specific Sublingual Immunotherapy Phase 3
Completed NCT02556801 - Efficacy and Safety of SUBLIVAC Phleum for Immunotherapy of Grass Pollen-Allergy Phase 2
Completed NCT02352168 - Airway Inflammation in Children With Allergic Rhinitis and Intervention N/A
Not yet recruiting NCT02233426 - Effect of Hypertonic Solutions on Allergic Rhinitis Patients N/A
Completed NCT01918956 - PURETHAL Birch RUSH Study Phase 4
Completed NCT01946035 - Alpha-Blockers in Allergic Rhinitis (MAN 01) Phase 4
Completed NCT01682070 - SUBLIVAC FIX Phleum Pratense DT/DRF Phase 2
Recruiting NCT01454492 - The Relationship Between Allergic Rhinitis and Geographic Tongue N/A
Completed NCT01439815 - An Allergen BioCube (ABC) Study Evaluating the Efficacy of Fluticasone Propionate Nasal Spray Compared to Placebo Phase 4