Fig 1.
Schedule of enrollment, interventions and outcome measurements.
X: All participants; △: If considered necessary by the investigator. 1 Screening test should be conducted within one day before Visit 2 and the results of clinical laboratory test should be able to be checked at Visit 2. 2 CBC (erythrocyte count, leukocyte count, hemoglobin, and hematocrit); LFT (AST, ALT, BUN, creatinine, and glucose). 3 These will be assessed through evaluation diary: 7-day self-recording worksheets will be provided at baseline after registration. The participants will record data daily and return them to the investigators at Visit 3. ALT, alanine aminotransferase; AST, aspartate aminotransferase; BUN, blood urea nitrogen; CBC, complete blood count; EQ-5D-5L, 5-level EuroQol 5-dimensional questionnaire; GGTCS, Galgeun-tang-ga-cheongung-sinyi; LFT, liver function test; PICCQ, pattern identification for chronic cough questionnaire; VAS, visual analog scale; WURSS-21-K, Wisconsin upper respiratory symptom survey-21-Korean version.
Fig 2.
GGTCS, Galgeun-tang-ga-cheongung-sinyi.
Table 1.
Composition of Galgeun-tang-ga-cheongung-sinyi (GGTCS).