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Efficacy of Liriope platyphylla extract

Efficacy of Liriope platyphylla extract for improving respiratory functions: Study protocol for a randomized, double-blinded, placebo-controlled pilot trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CRIS
Registry ID
KCT0006426
Enrollment
22
Registered
2021-08-05
Start date
2021-06-30
Completion date
Unknown
Last updated
2021-10-05

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

Conditions

None listed

Interventions

Dietary Supplement : Test supplement: Maekmundong extract 1,000 mg/day Placebo supplement: placebo Take orally for 4 weeks, 2 times a day, 1 capsule at a time.

Sponsors

Cheonan Korean Medicine Hospital of Daejeon University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Adults between the ages of 19 and 80 2. In case of persistent respiratory symptoms (cough, sputum) (BCSS score of 1 or higher) 3. FEV1/FVC 70% or more 4. Those who voluntarily agreed in writing to participate in this clinical trial

Exclusion criteria

Exclusion criteria: 1. Persons with any of the following respiratory diseases or a history - Respiratory diseases accompanied by destruction of the underlying lung parenchyma (tuberculosis destroyed lung, bronchiectasis, etc.) - In case of confirmed or suspected inflammatory lesions in the lung parenchyma, such as pneumonia or tuberculosis - In case of being diagnosed and treated for bronchial asthma, COPD, influenza, pneumonia, lung cancer, etc. - Acute bronchitis, chronic bronchitis (BCSS score of 9 or higher and persistent cough and sputum symptoms for at least 3 months per year for 2 consecutive years) 2. If you have uncontrolled cardiovascular disease 3. Those who have taken systemic corticosteroids or immunosuppressants within 4 weeks of their first visit, or who have taken health functional foods or medicines for the purpose of controlling antitussive expectoration 4. Persons with reduced renal function (serum creatinine = 2 mg/dL or on dialysis due to chronic renal failure) 5. Those with decreased liver function (total bilirubin = 2 mg/dL or AST or ALT = 3 times the upper limit of normal) 6. Uncontrolled mental illness, alcoholic 7. Among those who participated in other clinical studies within 1 month of the screening visit, those who received intervention 8. Pregnant or lactating women 9. Persons judged by the researcher as inappropriate to participate in this research

Design outcomes

Primary

MeasureTime frame
BCSS(Breathlessness, Cough and Sputum Scale);Lung function test FEV/FVC(Forced Expiratory Volume in 1 second / Forced Vital Capacity)

Secondary

MeasureTime frame
Intrabronchial inflammatory marker concentration;CAT score(COPD assessment test)

Countries

Korea, Republic of

Contacts

Public ContactPark chae-hyun

Cheonan Korean Medicine Hospital of Daejeon University

ch9500@hanmail.net+82-41-521-7578

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026