Frontiers in pharmacology · 2026
Efficacy and safety of selected Chinese herbal medicine preparations in treating carotid atherosclerosis: a systematic review and meta-analyses.
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Sun Yuemeng, Feng Menghan, Zhang Haoran, Liu Jiayi, Li Qian, Zhang Shujing, Ma Chunjie, Wu Hao
Аннотация
BACKGROUND: Although conventional therapies for Carotid atherosclerosis (CAS) remain the standard treatment, their effectiveness is often limited and accompanied by adverse effects. Chinese herbal medicine (CHM) is a promising adjunctive therapy for CAS; however, robust clinical evidence supporting its efficacy and safety remains limited.
OBJECTIVE: This systematic review and meta-analysis evaluates the efficacy and safety of CHM for CAS treatment and characterizes its medication patterns.
METHODS: Five databases were searched from inception to December 2025. Randomized controlled trials (RCTs) evaluating oral CHM for CAS were included. Study quality was assessed using the Cochrane Risk of Bias 2 (RoB 2) tool. Data were extracted and analyzed using RevMan v5.3 and R software. Sources of heterogeneity were investigated through meta-regression and subgroup analyses. Network analysis reveals herbal medication patterns across 21 studies.
RESULTS: Twenty-one RCTs involving 3,078 patients were included. Compared with conventional therapy alone, adjunctive CHM significantly reduced carotid plaque area (MD = 4.94, 95% CI: 3.13 to 6.76, p < 0.01), intima-media thickness (IMT) (MD = 0.12, 95% CI: 0.07 to 0.17, p < 0.05), total cholesterol (TC) (MD = 0.32, 95% CI: 0.22 to 0.42, p < 0.01), triglycerides (TG) (MD = 0.24, 95% CI: 0.11 to 0.37, p < 0.01), and low-density lipoprotein cholesterol (LDL-C) (MD = 0.37, 95% CI: 0.21 to 0.53, p < 0.01), while greatly increasing high-density lipoprotein cholesterol (HDL-C) (MD = -0.20, 95% CI: -0.29 to -0.10, p < 0.01). CHM did not significantly increase the risk of adverse events (RR = 0.84, 95% CI: 0.64 to 1.10, p = 0.20) or impair liver/kidney function. Network analysis identified core actions as clearing phlegm and removing blood stasis, with Danshen (Salvia miltiorrhiza Bge.) and Banxia [Pinellia ternata (Thunb.) Breit.] as pivotal botanical drugs exerting anti-stasis and lipid-regulating effects.
CONCLUSION: As an adjunct to conventional therapy, CHM may further reduce carotid IMT and plaque burden, improve lipid metabolism, and demonstrate a favorable safety profile. However, the overall quality and heterogeneity of the included studies limit the strength of the evidence, highlighting the need for well-designed, high-quality RCTs to confirm these findings.
SYSTEMATIC REVIEW REGISTRATION: https://www.crd.york.ac.uk/PROSPERO/view/CRD420261285381, identifier CRD420261285381.
OBJECTIVE: This systematic review and meta-analysis evaluates the efficacy and safety of CHM for CAS treatment and characterizes its medication patterns.
METHODS: Five databases were searched from inception to December 2025. Randomized controlled trials (RCTs) evaluating oral CHM for CAS were included. Study quality was assessed using the Cochrane Risk of Bias 2 (RoB 2) tool. Data were extracted and analyzed using RevMan v5.3 and R software. Sources of heterogeneity were investigated through meta-regression and subgroup analyses. Network analysis reveals herbal medication patterns across 21 studies.
RESULTS: Twenty-one RCTs involving 3,078 patients were included. Compared with conventional therapy alone, adjunctive CHM significantly reduced carotid plaque area (MD = 4.94, 95% CI: 3.13 to 6.76, p < 0.01), intima-media thickness (IMT) (MD = 0.12, 95% CI: 0.07 to 0.17, p < 0.05), total cholesterol (TC) (MD = 0.32, 95% CI: 0.22 to 0.42, p < 0.01), triglycerides (TG) (MD = 0.24, 95% CI: 0.11 to 0.37, p < 0.01), and low-density lipoprotein cholesterol (LDL-C) (MD = 0.37, 95% CI: 0.21 to 0.53, p < 0.01), while greatly increasing high-density lipoprotein cholesterol (HDL-C) (MD = -0.20, 95% CI: -0.29 to -0.10, p < 0.01). CHM did not significantly increase the risk of adverse events (RR = 0.84, 95% CI: 0.64 to 1.10, p = 0.20) or impair liver/kidney function. Network analysis identified core actions as clearing phlegm and removing blood stasis, with Danshen (Salvia miltiorrhiza Bge.) and Banxia [Pinellia ternata (Thunb.) Breit.] as pivotal botanical drugs exerting anti-stasis and lipid-regulating effects.
CONCLUSION: As an adjunct to conventional therapy, CHM may further reduce carotid IMT and plaque burden, improve lipid metabolism, and demonstrate a favorable safety profile. However, the overall quality and heterogeneity of the included studies limit the strength of the evidence, highlighting the need for well-designed, high-quality RCTs to confirm these findings.
SYSTEMATIC REVIEW REGISTRATION: https://www.crd.york.ac.uk/PROSPERO/view/CRD420261285381, identifier CRD420261285381.