Comparison of the Effects of Nasal Steroids and Montelukast on Olfactory Functions in Patients With Allergic Rhinitis

Istanbul Gaziosmanpasa Taksim Research and Training Hospital,

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02565212

Enrollment

Registered

2015-10-01

Start date

2014-05-31

Completion date

2014-10-31

Last updated

2015-10-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Allergic Rhinitis

Keywords

Montelukast, Sniffin' Sticks test, allergic rhinitis, mometasone furoate

Brief summary

The investigators aimed to evaluate by the Sniffin' Sticks test the effects on olfactory functions of nasal steroids and leukotriene antagonists used for allergic rhinitis.Thirty patients with seasonal were included in this study. Patients were randomly divided into three groups of 10 patients; group 1 received montelukast sodium and mometasone furoate therapy, group 2 received only montelukast, and group 3 only mometasone furoate. Patients' olfactory functions were determined using the Sniffin' Sticks olfactory test before and after a month treatments. Threshold, discrimination, identification, and TDI values were not significantly different among the groups before treatment. For Group 1 and Group 3 patients, there were statistically significant differences in threshold, discrimination, identification, and TDI values before and after treatment (p \< 0.05) (Wilcoxon signed ranks analysis) For Group 2 patients, the before and after treatment values of threshold, discrimination, identification, and TDI showed no significant differences (p \> 0.05). According to the findings of our study, MF is superior to montelukast in improving olfactory function. Although montelukast has been shown to be effective against AR symptoms, its effect on olfactory function was not demonstrated in this study.

Interventions

DRUGMontelukast,mometazon froat

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

18 Years to 70 Years

Healthy volunteers

Inclusion criteria

* Positive skin test to grass and/or tree pollens in patients with clinical history of seasonal AR for at least 1 year

Exclusion criteria

* Patients who had received drug treatment or immunotherapy before the study were excluded. * Patients with asthma, deviated nasal septum, history of nasal operation, turbinate hypertrophy, nasal polyposis or chronic nasal disorders, pregnancy, or upper airway infections were also excluded.

Design outcomes

Primary

Measure	Time frame	Description
Comparison of the effects of nasal steroids and montelukast on olfactory functions in patients with allergic rhinitis	1 month	Sniff'in and Snick test (olfactory Test)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026