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Complement Ther Med. 2019 Oct;46:189-194. doi: 10.1016/j.ctim.2019.08.015. Epub 2019 Aug 24.

The add-on effect of dengzhan shengmai capsules on secondary prevention of ischemic stroke: A multicentre, randomised, placebo-controlled clinical trial.

Author information

1
Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China.
2
Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
3
Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China. Electronic address: gdszyyhy@163.com.
4
Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China. Electronic address: chensh680@163.com.

Abstract

OBJECTIVE:

The Dengzhan Shengmai (DZSM) capsule is a commercially available type of Chinese herbal medicine frequently administered to improve neurological impairment after stroke. Its ability to prevent recurrent stroke, however, has not been determined. This study therefore evaluated the ability of DZSM as an add-on to conventional secondary preventive agents to prevent recurrent ischemic stroke.

METHODS:

In this randomised, double-blind, placebo-controlled trial, conducted at 83 hospitals in Mainland China, 3143 patients in 14-180 days after the initial onset of ischemic stroke, were randomly allocated to the DZSM (0.36 g, twice daily for 12 months) or the placebo group. All patients in both groups received standard secondary preventive medications. The primary outcome was the 1-year incidence of stroke. Between group differences were assessed using the Cox proportional hazards model.

RESULTS:

Intent-to-treat analysis showed that 58 (3.8%) participants in the DZSM group and 82 (5.4%) in the placebo group experienced new stroke events (hazard ratio = 0.70, 95% confidence interval = 0.50-0.98, P = 0.036). The type and incidence of adverse events were similar in the DZSM and placebo groups.

CONCLUSIONS:

The addition of DZSM capsules to standard secondary preventive agents provides additional benefits after the initial onset of ischemic stroke, reducing recurrent stroke without increasing severe adverse events. However, further study is needed to elucidate the role of DZSM on the updated practice of conventional secondary prevention for ischemic stroke.

KEYWORDS:

Chinese herbal medicine; Dengzhan shengmai capsule; Ischemic stroke; Randomised clinical trial; Secondary prevention

PMID:
31519277
DOI:
10.1016/j.ctim.2019.08.015

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