Fractional Concentration of Exhaled NO(FENO) to Direct Montelukast Treatment of Sub-acute Cough

NCT ID: NCT02303600

Last Updated: 2014-12-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-08-31

Study Completion Date

2015-08-31

Brief Summary

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Cough is a common symptom of respiratory medicine clinic patients, which has complex etiology and wide-ranging. Cough is usually divided into three categories by time: acute cough, subacute cough and chronic cough. Subacute has a 3\~8 weeks course of disease. Its main etiology is postinfectious cough, which is mostly secondary to viral infection.Considering its overexpression in postinfectious patient, Cysteinyl leukotriene (CysLTs) plays a role in gathering eosinophils to respiratory. The level of FENO has a significant correlation with inflammatory airway eosinophils. While CysLTs overexpressed in vivo, the level of FENO may increase. Montelukast, as CysLTs-receptor-1 antagonists, plays a role of controlling airway inflammation and decrease airway high activity by suppressing the biological activity of CysLTs. It is effective in theory to therapy sub-acute cough by Montelukast, to short the course and to relieve cough symptoms as soon as possible. The aim is to research whether FENO can be used as a biomarker to optimized treatment regimen of sub-acute cough.

Detailed Description

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This project is a prospective, open label, randomized and controlled trial. All subacute cough patients that met the inclusion/exclusion criteria were recruited after signing the consent form. Patients were randomized into biomarker treatment arm and standard treatment arm. Positive or negative biomarker expression was confirmed by assessing fractional concentration of exhaled NO (FENO) level, FENO\<25ppb was regarded as negative and FENO≥25ppb was regarded as positive.

Patients in biomarker guided positive treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.) . Patients in biomarker guided negative treatment arm were given placebo tablets(p.o., 10mg, q.d.). Patients in standard treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.).All treatment regimens lasted for 10 days and no other antitussive/decongestant or bronchodilators are given to any patients.

Examine results of all patients from all arms were recorded before and after the 10 day treatment. The examine recorded are FENO levels, cough symptom assessment, cough visual assessment, Leicester cough questionnaire, total white blood cell count, neutrophil blood percentage, eosinophil blood percentage. Patient cough free days after treatment and Montelukast Sodium Tablets . Follow up was carried out at the 8th week after first record of symptom and 2 month after treatment.

Conditions

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Coughing

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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biomarker treatment arm

Patients in biomarker guided positive treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.) . Patients in biomarker guided negative treatment arm were given placebo tablets (main excipient lactose monohydrate).

Group Type EXPERIMENTAL

Placebo

Intervention Type OTHER

Patients in biomarker guided negative treatment arm were given placebo tablets (main excipient lactose monohydrate) (p.o., 10mg, q.d.) .

standard treatment arm

Patients in standard treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.) .

Group Type ACTIVE_COMPARATOR

Montelukast

Intervention Type DRUG

Patients in biomarker guided positive treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.). Patients in biomarker guided negative treatment arm were given placebo tablets . Patients in standard treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.) . All treatment regimens lasted for 10 days and no other antitussive/decongestant or bronchodilators are given to any patients.

Interventions

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Montelukast

Patients in biomarker guided positive treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.). Patients in biomarker guided negative treatment arm were given placebo tablets . Patients in standard treatment arm were given Montelukast Sodium Tablets (p.o., 10mg, q.d.) . All treatment regimens lasted for 10 days and no other antitussive/decongestant or bronchodilators are given to any patients.

Intervention Type DRUG

Placebo

Patients in biomarker guided negative treatment arm were given placebo tablets (main excipient lactose monohydrate) (p.o., 10mg, q.d.) .

Intervention Type OTHER

Other Intervention Names

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Placebo (main excipient lactose monohydrate)

Eligibility Criteria

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Inclusion Criteria

* Cough is the main or only clinical symptom and was persistent for 3-8 weeks
* Chest X-ray reveals no noticeable pathological changes
* ≥18 year old, regardless of gender and ethical background
* Not taking angiotensin-converting enzyme inhibitor
* Patients must join the programme voluntarily and are able to attend examination and follow-up sessions

Exclusion Criteria

* Patients diagnosed with rhinallergosis, chronic nasosinusitis or bacterial respiratory tract infections
* Patients diagnosed with severe reportorial disease of other severe systemic disease
* Patients who are allergic to any drugs to be tested
* Patients who are non-cooperative during examination sessions or other steps of the trial
* Patients who are not able to or refuse to sign consent
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beijing Chao Yang Hospital

OTHER

Sponsor Role lead

Responsible Party

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Min Liu

resident

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Kewu Huang, M.D.

Role: STUDY_CHAIR

Beijing Chao Yang Hospital

Locations

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Beijing Chaoyang Hospital affiliated to Capital Medical University

Beijing, Beijing Municipality, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Kewu Huang, M.D.

Role: CONTACT

86-10-85231167

Min Liu, Master

Role: CONTACT

86-0-13522226189

Facility Contacts

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Kewu Huang, M.D.

Role: primary

86-10-85231167

Min Liu, Master

Role: backup

86-0-13522226189

References

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Other Identifiers

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SAC2014

Identifier Type: -

Identifier Source: org_study_id