This is an exploratory multicenter randomized controlled trial involving four clinical research centers, including the First Affiliated Hospital of Hunan University of Traditional Chinese Medicine, Hubei Hospital of Traditional Chinese Medicine, Shaanxi Hospital of Traditional Chinese Medicine, and Guizhou Hospital of Traditional Chinese Medicine. Each clinical research center strictly screened cases according to the diagnostic criteria, inclusion criteria and exclusion criteria. After confirmation of enrollment, random numbers were obtained according to the application for random coding process until the total number of observation was completed. According to the sample size, a total of 198 patients with DOR need to be enrolled. The 29-week study period consists of a 4-week screening period, 1-week baseline period, 12-week treatment period, 12-week follow-up period, and assessments at baseline. He patients were randomly divided into three groups: the liver meridian, stomach meridian, and non-acupoint acupuncture groups. Due to the particularity of acupuncture research, it is impossible to blind acupuncture operators. Blinded evaluation will be adopted in the trial, and the third party who does not know the grouping will evaluate the efficacy. Blind statistical analysis was used in the data summary stage, and the researchers, operators and statisticians were separated. In the experimental group (liver meridian group), EA was applied to Taichong, Li gou, Ququan and Jimai. In the control group 1 (gastric meridian group), EA was applied to Chongyang, Fenglong, Zusanli and Biguan. In the control group 2 (the non-meridian non-acupoint group), 4 non-meridian non-acupoints were selected from the lateral thigh, the lateral calf and the lateral calcaneus, respectively (see the treatment methods of the non-meridian non-acupoint group for details) and stimulated with EA.
The main evaluation index will be Anti-Müllerian hormone(AMH), The secondary evaluation index include serum sex hormones (bFSH, bE2, bLH, bFSH/bLH), antral follicle count(AFC),, menstrual status, the modified Kupperman Index(KI), perimenopausal quality of life score (MENQOL) ,Self-Rating Anxiety Scale( SAS ), self-rating depression scale(SDS), Menstrual conditions. The patients were evaluated at different time points during the baseline period, treatment period and follow-up period, and the incidence of adverse events will be recorded. Double data entry will be used in this trial to ensure the accuracy of data entry. A three-level quality control system (self-inspection by each center, supervision by project management team, and third-party audit) was implemented to ensure that the implementation, recording and reporting of clinical trials were in accordance with the trial protocol, standard operating procedures, and relevant laws and regulations. The statistical analysis plan was developed by the statistical analysis principal and the principal investigators in accordance with the protocol and was finalized before the database was locked. The tables for the statistical analysis were developed. Statistical analysis will be calculated by SPSS25.0 statistical analysis software, P\<0.05 (i.e., =0.05) will be considered statistically significant, in order to clarify the efficacy and safety of acupuncture on DOR.
