Efficacy and Safety of GHX02 in the Treatment of Acute Bronchitis

Daejeon University150 enrolled

Overview

This study is a phase 2, multicentre, dose-finding, double-blind, randomized placebo-controlled trial to evaluate the efficacy and safety of two different doses of GHX02, compared with placebo, for acute bronchitis. One-hundred and fifty patients will be included in this trial and randomly assigned to either a high-dose GHX02 group(1920mg/day), standard-dose GHX02 group(960mg/day), or control group(placebo) in a 1:1:1 allocation ratio. Patients will take one of the medications three times a day for 7 days, with 3 visiting days(screening, day0, day7). On the screening day, the Korean Standard Tool of Pattern Identification of Cough and Sputum, a diagnostic system that determines therapy in Traditional Korean Medicine, will be used to allocate patients into three groups of wind-heat, wind-cold or others.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Enrollment

150

Conditions

Acute Bronchitis

Interventions

Eligibility

Sex: ALLMin age: 19 YearsMax age: 75 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. age 19-75 years 2. BSS ≥ 5 points at visit2 due to acute bronchitis 3. symptoms starting within 2 weeks before study inclusion 4. patients who consent to participate Exclusion Criteria: 1. pregnant or breast-feeding 2. treatment with antibiotics, bronchodilators, glucocorticoids, immune-depressants, or other clinical trial medicines during the last 4 weeks before study inclusion 3. treatment with antitussives or expectorants during the last 7 days before study inclusion 4. history or presence of confounding respiratory disease that may affect evaluation of the efficacy of clinical medicine (e.g. chronic bronchitis, chronic obstructive pulmonary disease (COPD), bronchiectasis, asthma, pneumonia, cystic fibrosis, lung cancer, or active pulmonary tuberculosis) 5. liver or renal impairment (alanine aminotransferase(ALT), aspartate aminotransferase(AST), alkaline phosphatase(ALP) ≥ 3 times the normal upper limit, or creatinine\> 3.0 mg/dL at screening) 6. history or presence of clinically relevant cardiovascular, renal, metabolic, haematological, neurological, psychiatric, systemic, infectious disease, or malignant tumour(except where there is no recurrence for more than 5 years after surgery) 7. history of alcoholism or substance abuse 8. participation in other clinical drug(medicine) trials during the last 30 days before study inclusion 9. judged by the investigators to be inappropriate for the clinical trial.

Outcomes

Primary Outcomes

Change in BSS(Bronchitis Severity Score)

BSS comprises the sum of five major symptom scores for acute bronchitis: cough, sputum, dyspnea, chest pain during coughing, and rales on auscultation. Each symptom is scored on a 4-point-scale (0=absent, 1=mild, 2=moderate, 3=severe, 4=very severe), with a maximum total score of 20 points. The investigator assesses symptom scores on the basis of the patient's subjective symptoms.

Time frame: Day0, Day7

Secondary Outcomes

Change in Questionnaire of Clinical Symptoms of Cough and Sputum

Questionnaire items are as follows: (1) cough -frequency, intensity, sensitivity; (2) sputum -frequency, volume, difficulty to cough-up, appearance, color; (3) activities of daily living; (4) night-time sleeping. Each item is scored on a 4-point-scale, with a total maximum score of 40 points.

Time frame: Day0, Day7

Change in Leicester Cough Questionnaire-acute(LCQ-acute)

It consists of 19 items divided into three parts, physical, psychological, and social, each scored from 1 to 7. The total score is the sum of the average scores(1-7 points) for each part. The higher the score, the better the quality of life.

Time frame: Day0, Day7

Change in frequency of coughing fits

participants will be classified into one of the following scales: 0 = 0 time/day, 1 = 1 time/day, 2 = 2-3 times/day, 3 = 4-5 times/day(sometimes), 4 = 6-10 times/day(frequent), 5 = over 15 times/day(consistently).

Time frame: Day0, Day1, Day2, Day3, Day4, Day5, Day6, Day7

Integrative Medicine Outcome Scale(IMOS)

It's a 5-point-scale for evaluating improvement after treatment (where, 1=complete recovery, 2=major improvement, 3=slight-to-moderate improvement, 4=no change, 5=deterioration), either by the patient or investigator (the investigator in this trial).

Time frame: Day7

Integrative Medicine Patient Satisfaction Scale(IMPSS)

It's a 5-point-scale for evaluating patient satisfaction with the treatment (where, 1=very satisfied, 2=satisfied, 3=neutral, 4=dissatisfied, 5=very dissatisfied)

Time frame: Day7

Efficacy and Safety of GHX02 in the Treatment of Acute Bronchitis

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes

Central Contacts