Allergic Rhinitis Clinical Trial
Official title:
Do Common Over-the-counter Antihistamine Medications Modify Thermoregulatory Responses During Passive Heat Stress?
Allergic rhinitis (AR) currently affects ~25% of Canadians, and due to factors of climate change, this number is expected to increase over the coming decade. AR symptoms can significantly impact individuals' quality of life by compromising sleep, productivity, and social interactions. To alleviate AR symptoms, North Americans tend to rely on H1 antihistamine medications available over-the-counter (OTC) at most pharmacies. However, public health authorities currently suggest restraining all antihistamines during heat waves due to beliefs that M3 muscarinic receptor and H1 receptor antagonism, independent pharmacological mechanisms of H1 antihistamines, might suppress thermoregulatory responses to heat stress and increase individuals' susceptibility to heat-related illness/injury. To date, studies using supramaximal doses of antihistamines have demonstrated reductions in sweating, however these doses and administration routes are not the typical use case. Additional studies utilizing fexofenadine, a second-generation H1 antihistamine, have linked H1 receptor antagonism to reductions in skin blood flow, potentially impacting thermoregulation by reducing peripheral blood redistribution. Empirical evidence supporting OTC H1 antihistamines impacting thermoregulatory control at recommended doses is scarce. Thus, this study aims to systematically assess whether three common OTC H1 antihistamines, taken as prescribed, alter thermoregulatory responses during thermal stress.
n/a
| 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 |
NCT02943720 -
ATIBAR - Efficacy and Safety of Two Doses of AllerT in Patients Allergic to Birch Pollen
|
Phase 2 | |
| Completed |
NCT02910401 -
Clinical Response to Rhinovirus Challenge
|
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 |
NCT01946035 -
Alpha-Blockers in Allergic Rhinitis (MAN 01)
|
Phase 4 | |
| Completed |
NCT01918956 -
PURETHAL Birch RUSH Study
|
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 |
NCT01438463 -
PURETHAL® Mites Dose Range Finding Study in Patients With Persistent Allergic Rhinitis/Rhinoconjunctivitis
|
Phase 2 |