Nasal filter trial shows positive results for seasonal allergy management

Published Online: February 18, 2016

A recent study found a substantial preventive effect of a new nasal filter (Rhinix, Rhinix ApS, Aarhus, Denmark) for seasonal allergies thus supporting the use of the nasal filter in the management of seasonal allergies. In determining the relevance of the nasal filter in allergy management, another important aspect to consider is whether the nasal filter is sufficiently convenient and comfortable to be used in the everyday management of allergies.

In their recent study published in The Journal of Allergy and Clinical Immunology: In Practice, Kenney and colleagues addressed this by conducting an observational open-label study during the main grass pollen season in Denmark in 2014 on 1,073 participants with seasonal allergies, with or without asthma. Participants received the filters for a two-week use period. Among other things, the authors analyzed the participants’ filter usage, interest in continued use and ratings on satisfaction with use of the nasal filter.

 The authors found that out of 834 new nasal filter users in week one, 634 (76%) continued use in week two. Out of the 834 who started use in week one, 630 (76%) stated interest in continued use of the nasal filter following the study’s completion. Compared with the participants who discontinued use,  participants who continued use in week two had higher screening scores for nasal symptoms, had more severe asthma (among  those with asthma), were more likely to have house dust mite allergy, and were more dissatisfied with their usual treatment.

On the basis of the findings of this large observational usability study, the nasal filters appear sufficiently convenient and comfortable to use to be clinically relevant for symptom management for many allergy sufferers.

The Journal of Allergy and Clinical Immunology: In Practice is an official journal of the AAAAI, focusing on practical information for the practicing clinician.

Close-up of pine tree branches in Winter Close-up of pine tree branches in Winter