| AE | Adverse Event |
| ALT | Alanine Transaminase |
| AST | Aspartate Transaminase |
| BMI | Body Mass Index |
| CAT | COPD Assessment Test |
| COPD | Chronic Obstructive Pulmonary Disease |
| CRDs | Chronic Respiratory Disease |
| DVAS | Dyspnea Visual Analogue Scale |
| FAS | Full Analysis Set |
| FEV1 | Forced Expiratory Volume in 1 s |
| FVC | Forced Vital Capacity |
| GCP | Good Clinical Practice |
| HRQL | Health-Related Quality of Life |
| hs-CRP | High-Sensitivity C-Reactive Protein |
| ICS | Inhaled Corticosteroid |
| IL-6 | Interleukin-6 |
| ITT | Intention-to-Treat Principle |
| LJH | Leonurus Japonicus Houtt. |
| LS | Least Squares |
| MCID | Minimal Clinically Important Difference |
| MedDRA | Medical Dictionary for Regulatory Avtivities |
| mMRC | modified Medical Research Council Dyspnea Scale |
| PT | Preferred Term |
| SCFAs | Short-Chain Fatty Acids |
| SGRQ | St. George’s Respiratory Questionnaire |
| SOC | System Organ Class |
| SS | Safety Analysis Set |
| TAS | Total Antioxidant Status |
| TNF-α | Tumor Necrosis Factor-α |
| ULN | Upper Limit of Normal |