Efficacy and safety of Chinese herbal medicine Buzhong Yiqi decoction for postmenopausal women with osteoporosis: A protocol for systematic review and meta-analysis.

Background: Postmenopausal osteoporosis (PMOP) is a disorder of bone metabolism caused by estrogen deficiency in women after menopause, which manifests clinically as pain, spinal deformities, and even fragility fractures, affecting the quality of life of patients and possibly shortening their life span. Traditional Chinese medicine prescription Buzhong Yiqi Decoction (BZYQD) has been widely used in clinical practice and achieved good results. But there is no high-level evidence to support this result. The aim of this study is to evaluate BZYQD's efficacy and safety in the management of PMOP.

Methods: We will search articles in 7 electronic databases including Chinese National Knowledge Infrastructure, Wanfang Data, Chinese Scientific Journals Database, Chinese databases SinoMed, PubMed, Embase, and Cochrane Library databases. All the publications, with no time restrictions, will be searched without any restriction on language and status, the time from the establishment of the database to September 2022. Two reviewers will independently assess the quality of the selected studies, NoteExpress and Excel software will be used to extract data, and the content will be stored in an electronic chart. Different researchers will separately screen the titles and abstracts of records acquired potential eligibility which comes from the electronic databases. Full-text screening and data extraction will be conducted afterward independently. Statistical analysis will be conducted using RevMan 5.4 software.

Results: This study will evaluate the efficacy and safety of BZYQD in the treatment of PMOP, to provide high-quality, evidence-based clinical recommendations.

Conclusion: The study provides a trustable clinical foundation for BZYQD in the treatment of PMOP.