DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trials

Background: DL -3-n-butylphthalide (NBP) is widely used as a neuroprotective drug in stroke patients in China. A systematic review in 2010 suggested NBP to be safe and effective at promoting neurological recovery, but could not conclude whether it decreased risk of long-term death or disability. Sin...

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Main Authors: Huan Wang, Kaili Ye, Dan Li, Yuxin Liu, Deren Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-09-01
Series:Frontiers in Pharmacology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2022.963118/full
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author Huan Wang
Kaili Ye
Dan Li
Yuxin Liu
Deren Wang
author_facet Huan Wang
Kaili Ye
Dan Li
Yuxin Liu
Deren Wang
author_sort Huan Wang
collection DOAJ
description Background: DL -3-n-butylphthalide (NBP) is widely used as a neuroprotective drug in stroke patients in China. A systematic review in 2010 suggested NBP to be safe and effective at promoting neurological recovery, but could not conclude whether it decreased risk of long-term death or disability. Since numerous randomized controlled trials (RCTs) have been conducted on NBP since 2010, we performed an updated systematic review and meta-analysis of safety and efficacy data.Method: We searched electronic databases and reference lists to identify RCTs that compared patients who received NBP or not (including placebo). Methodological quality of RCTs was assessed using the Revised Cochrane Risk of Bias Tool 2.0, and data were meta-analyzed using Review Manager 5.4 software.Results: Fifty-seven RCTs involving 8,747 participants were included. Twenty trials examined NBP as a capsule, 29 as an injection, and 8 as sequential injection-capsule therapy. Meta-analyses showed that NBP treatment was associated with a reduction in composite outcome of death and dependency (risk ratio 0.59, 95% CI 0.42 to 0.83; 260 participants; 2 studies), death (risk ratio 0.32, 95% CI 0.13 to 0.75; 2,287 participants; 10 studies), modified Rankin Scale score (mean difference -0.80, 95% CI -0.88 to -0.72; 568 participants; 4 studies), and an increase in Barthel Index, which assesses the ability to engage in basic activities of daily living (mean difference 11.08, 95% CI 9.10 to 13.05; 2,968 participants; 22 studies). Meta-analyses found that NBP significantly reduced neurological deficit based on National Institute of Health Stroke Scale (mean difference -3.39, 95% CI -3.76 to -3.03; 7.283 participants; 46 studies) and Chinese Stroke Scale (mean difference -4.16, 95% CI -7.60 to -0.73; 543 participants; 4 studies). Of the adverse events reported in 31 trials, elevated transaminase (incidence, 1.39-17.53%), rash (0-1.96%) and gastrointestinal discomfort (1.09-6.15%) were most frequent and no serious adverse events were reported.Conclusion: This update review confirms that NBP can help acute ischemic stroke patients regain the ability to perform activities of daily living, reduce their neurological deficit and short-term death rates. However, the available evidence on whether NBP reduces risk of long-term death or dependence after ischemic stroke remains insufficient.
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spelling doaj.art-74e796a2855c4a25af78e774bca1e7ab2022-12-22T01:56:35ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122022-09-011310.3389/fphar.2022.963118963118DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trialsHuan Wang0Kaili Ye1Dan Li2Yuxin Liu3Deren Wang4Department of Neurology, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Neurology, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Psychiatry, Dazhou Central Hospital, Dazhou, ChinaDepartment of Neurology, Mental and Neurological Disease Research Center, The Third Affiliated Hospital of Sun Yatsen University, Guangzhou, ChinaDepartment of Neurology, West China Hospital, Sichuan University, Chengdu, ChinaBackground: DL -3-n-butylphthalide (NBP) is widely used as a neuroprotective drug in stroke patients in China. A systematic review in 2010 suggested NBP to be safe and effective at promoting neurological recovery, but could not conclude whether it decreased risk of long-term death or disability. Since numerous randomized controlled trials (RCTs) have been conducted on NBP since 2010, we performed an updated systematic review and meta-analysis of safety and efficacy data.Method: We searched electronic databases and reference lists to identify RCTs that compared patients who received NBP or not (including placebo). Methodological quality of RCTs was assessed using the Revised Cochrane Risk of Bias Tool 2.0, and data were meta-analyzed using Review Manager 5.4 software.Results: Fifty-seven RCTs involving 8,747 participants were included. Twenty trials examined NBP as a capsule, 29 as an injection, and 8 as sequential injection-capsule therapy. Meta-analyses showed that NBP treatment was associated with a reduction in composite outcome of death and dependency (risk ratio 0.59, 95% CI 0.42 to 0.83; 260 participants; 2 studies), death (risk ratio 0.32, 95% CI 0.13 to 0.75; 2,287 participants; 10 studies), modified Rankin Scale score (mean difference -0.80, 95% CI -0.88 to -0.72; 568 participants; 4 studies), and an increase in Barthel Index, which assesses the ability to engage in basic activities of daily living (mean difference 11.08, 95% CI 9.10 to 13.05; 2,968 participants; 22 studies). Meta-analyses found that NBP significantly reduced neurological deficit based on National Institute of Health Stroke Scale (mean difference -3.39, 95% CI -3.76 to -3.03; 7.283 participants; 46 studies) and Chinese Stroke Scale (mean difference -4.16, 95% CI -7.60 to -0.73; 543 participants; 4 studies). Of the adverse events reported in 31 trials, elevated transaminase (incidence, 1.39-17.53%), rash (0-1.96%) and gastrointestinal discomfort (1.09-6.15%) were most frequent and no serious adverse events were reported.Conclusion: This update review confirms that NBP can help acute ischemic stroke patients regain the ability to perform activities of daily living, reduce their neurological deficit and short-term death rates. However, the available evidence on whether NBP reduces risk of long-term death or dependence after ischemic stroke remains insufficient.https://www.frontiersin.org/articles/10.3389/fphar.2022.963118/fullstrokebutylphthalideefficacymeta-analysissystematic review
spellingShingle Huan Wang
Kaili Ye
Dan Li
Yuxin Liu
Deren Wang
DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trials
Frontiers in Pharmacology
stroke
butylphthalide
efficacy
meta-analysis
systematic review
title DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trials
title_full DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trials
title_fullStr DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trials
title_full_unstemmed DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trials
title_short DL-3-n-butylphthalide for acute ischemic stroke: An updated systematic review and meta-analysis of randomized controlled trials
title_sort dl 3 n butylphthalide for acute ischemic stroke an updated systematic review and meta analysis of randomized controlled trials
topic stroke
butylphthalide
efficacy
meta-analysis
systematic review
url https://www.frontiersin.org/articles/10.3389/fphar.2022.963118/full
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AT danli dl3nbutylphthalideforacuteischemicstrokeanupdatedsystematicreviewandmetaanalysisofrandomizedcontrolledtrials
AT yuxinliu dl3nbutylphthalideforacuteischemicstrokeanupdatedsystematicreviewandmetaanalysisofrandomizedcontrolledtrials
AT derenwang dl3nbutylphthalideforacuteischemicstrokeanupdatedsystematicreviewandmetaanalysisofrandomizedcontrolledtrials