Study: NCT04601792

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Individualized Decoction
Description: Applied in the Tested Drug Observation Period. It is the highly individualized treatment of TCM, the modification of Bronchiectasis Stabilization Decoction (Rhizoma Fagopyri Cymosi 30g, Radix Lithospermi 15g, Radix Ophiopogonis 15g, Poria cocos 15g, Radix Astragali 20g, Rhizoma Bletillae 10g, Platycodon grandiflorum 10g, Semen Coicis 30g) based on syndrome differentiation. For example, for patients with qi and yin deficiency syndrome, the investigators added Adenophora Root, Radix Glehniae and Radix Rehmanniae Recens etc. For patients with phlegm-heat syndrome, the investigators added Radix Scutellariae and Viola Yedoensis etc. Besides, the herbs in a prescription could be changed according to different symptoms of individual patients.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Individualized Decoction
Description: Applied in the Tested Drug Observation Period. It is the highly individualized treatment of TCM, the modification of Bronchiectasis Stabilization Decoction (Rhizoma Fagopyri Cymosi 30g, Radix Lithospermi 15g, Radix Ophiopogonis 15g, Poria cocos 15g, Radix Astragali 20g, Rhizoma Bletillae 10g, Platycodon grandiflorum 10g, Semen Coicis 30g) based on syndrome differentiation. For example, for patients with qi and yin deficiency syndrome, the investigators added Adenophora Root, Radix Glehniae and Radix Rehmanniae Recens etc. For patients with phlegm-heat syndrome, the investigators added Radix Scutellariae and Viola Yedoensis etc. Besides, the herbs in a prescription could be changed according to different symptoms of individual patients.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Individualized Decoction
Description: Applied in the Tested Drug Observation Period. It is the highly individualized treatment of TCM, the modification of Bronchiectasis Stabilization Decoction (Rhizoma Fagopyri Cymosi 30g, Radix Lithospermi 15g, Radix Ophiopogonis 15g, Poria cocos 15g, Radix Astragali 20g, Rhizoma Bletillae 10g, Platycodon grandiflorum 10g, Semen Coicis 30g) based on syndrome differentiation. For example, for patients with qi and yin deficiency syndrome, the investigators added Adenophora Root, Radix Glehniae and Radix Rehmanniae Recens etc. For patients with phlegm-heat syndrome, the investigators added Radix Scutellariae and Viola Yedoensis etc. Besides, the herbs in a prescription could be changed according to different symptoms of individual patients.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: placebo
Description: Applied in the placebo Observation Period. Placebo is made by dextrin, bitter agent, edible pigment etc. and added 5% test drug. The test drug and control drug have no differences in dosage form, appearance, color, specification, label, and so forth.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: placebo
Description: Applied in the placebo Observation Period. Placebo is made by dextrin, bitter agent, edible pigment etc. and added 5% test drug. The test drug and control drug have no differences in dosage form, appearance, color, specification, label, and so forth.