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As many as 250 million people suffer from allergic rhinitis in China, which has a large population, early use of drugs may help better control the symptoms.This study aimed to investigate the effects of early interventional treatment with the leukotriene receptor antagonist (LTRA) montelukast on seasonal allergic rhinitis.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Early interventional treatment group | Experimental | The patients in this group:oral drug therapy from onset of the low pollen stage (August 1st, 2020) to the end of the pollen stage (September 30, 2020). Intranasal corticosteroids (mometasone furoate) from the high pollen stage (August 14, 2020) to the end of the pollen stage (September 30, 2020). |
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| Post-onset treatment group | Active Comparator | The patients in this group: oral drug therapy after the high pollen stage (August 14, 2020) to the end of the pollen stage (September 30, 2020.). Intranasal corticosteroids (mometasone furoate) from the high pollen stage (August 14, 2020) to the end of the pollen stage (September 30, 2020). |
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| Control group | Active Comparator | The patients in this group:Intranasal corticosteroids (mometasone furoate) from the high pollen stage (August 14, 2020) to the end of the pollen stage (September 30, 2020). |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Start taking Montelukast Sodium Tablets 10mg quaque die orally two weeks before peak pollen count. | Behavioral | Start taking Montelukast Sodium Tablets 10mg quaque die orally two weeks before peak pollen count.Intranasal corticosteroids (mometasone furoate) 100μg was used in the group after peak pollen count. |
| Measure | Description | Time Frame |
|---|---|---|
| The change of subjective AR symptoms | Symptom change before and after treatment was estimated by Visual analogue scale(VAS) symptom score. The VAS symptom scores ranged from 0 (asymptomatic) to 10 (very severe). The questionnaire included nasal symptoms: nasal congestion, nasal discharge, sneezing, and rhinocnesmus; eye symptoms: lacrimation, eye itching, eye redness, swelling, and ophthalmodynia; airway symptoms: wheezing, chest constriction, cough, labored breathing. | baseline, visit 1: 2 weeks prior to the high weed pollen stage, visit 2: high weed pollen stage, visit 3: 2 weeks after the high weed pollen stage. |
| Measure | Description | Time Frame |
|---|---|---|
| The change of objective examination: nasal function | Eccovision acoustic rhinometry was used to measure the nasal cavity volume (NCV) according to standardized recommendations. Measurements of nasal volume were made from the first 2 cm (V2), the first 4 cm (V4), from the first 6 cm (V6), from the segment between 0 and 5 cm (V0-5), and the segment between 0 and 7 cm (V0-7) of the nose. All measurements were performed three times by the same operator, and nasal volumes were calculated as the sum of both nostrils24. In the current study, the change in the nasal cavity volume was measured at 2-5 cm, as this seems to be an important variable for mucosal changes.24 Nasal airway resistance (NAR) was measured by anterior active rhinomanometry in a quiet room at temperature of 25°C and humidity of 70%. NAR was measured at 75 Pa point (R75T). |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Zhang Luo | Beijing Institute of Otolaryngology | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Beijing Tongren Hospital | Beijing | Beijing Municipality | 100730 | China |
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| Montelukast Sodium Tablets 10mg quaque die orally was administered after peak pollen count. | Behavioral | 10mg quaque die orally was administered after peak pollen count.Intranasal corticosteroids (mometasone furoate) 100μg was used in the group after peak pollen count. |
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| No oral drug therapy throughout the pollen period | Drug | Intranasal corticosteroids (mometasone furoate) 100μg was used in the group after peak pollen count. |
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| baseline, visit 1: 2 weeks prior to the high weed pollen stage, visit 2: high weed pollen stage, visit 3: 2 weeks after the high weed pollen stage. |
| The change of cytokine expression | Quantitative real-time reverse transcription PCR (qRT-PCR) was used to analyze the mRNA expression levels of the cytokines interleukin-4, interleukin-5, interleukin-13, leukotriene C4, RANTES, tumor necrosis factor-α, thymic stromal lymphopoietin, and EOTAXIN in the nasal mucosa before and after treatment. The qRT-PCR data were processed using the 2-△△CT method. | baseline, visit 1: 2 weeks prior to the high weed pollen stage, visit 2: high weed pollen stage, visit 3: 2 weeks after the high weed pollen stage. |
| ID | Term |
|---|---|
| C093875 | montelukast |
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