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CLINICAL TRIAL article

Front. Pharmacol.

Sec. Ethnopharmacology

This article is part of the Research TopicHerbal Medicine for the Treatment of Chronic Metabolic Diseases, Volume IIView all 54 articles

Efficacy and Safety of Yingxin Pill for Stable Angina Pectoris with Heart Blood Stasis Obstruction Syndrome: A Randomized, Single-Blind, Positive-Controlled Trial

Provisionally accepted
CHAOFENG  NIUCHAOFENG NIU1Haixia  LaiHaixia Lai1Ce  WangCe Wang1Zhuoran  WuZhuoran Wu1Peiyu  ZhangPeiyu Zhang1,2Lan  WeiLan Wei1Wang  SunWang Sun1Yujie  ShiYujie Shi3Lijing  ZhangLijing Zhang1*
  • 1Department of Cardiology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
  • 2Hohhot Maternal and Child Health Hospital, Hohhot, China
  • 3Chinese PLA General Hospital, Beijing, China

The final, formatted version of the article will be published soon.

Objective: To evaluate the clinical efficacy and safety of Yingxin Pill (YXP) in patients with stable angina pectoris (SAP) and heart blood stasis obstruction syndrome. Methods: Sixty patients were randomly assigned to either the experimental group (YXP plus conventional Western medicine) or the control group (Shexiang Baoxin Pill [SBP] plus conventional Western medicine), with 30 patients in each group. Treatment lasted for 4 weeks. Outcomes included the Seattle Angina Questionnaire (SAQ), a Traditional Chinese Medicine (TCM) efficacy scale, blood lipid profiles, and inflammatory markers. The effective rate and incidence of adverse events were also compared. Results: After treatment, both groups showed significant improvements in SAQ scores, TCM efficacy scale scores, lipid profiles, and inflammatory markers compared to baseline (P<0.05). There were no significant differences between the two groups in these outcomes, nor in the total effective rate or incidence of adverse events (P>0.05). Conclusions: The addition of YXP to conventional therapy can improve symptoms, reduce blood lipid and inflammation levels, and is safe for patients with SAP and heart blood stasis obstruction syndrome.

Keywords: Blood lipid, Inflammatory markers, positive-controlled clinical trial, Stable angina pectoris, Traditional Chinese Medicine, yingxin pill

Received: 23 Oct 2025; Accepted: 28 Jan 2026.

Copyright: © 2026 NIU, Lai, Wang, Wu, Zhang, Wei, Sun, Shi and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Lijing Zhang

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