Intensive blood pressure reduction with intravenous thrombolysis therapy for acute ischaemic stroke (ENCHANTED): an international, randomised, open-label, blinded-endpoint, phase 3 trial

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dc.contributor.authorAnderson, Craig
dc.contributor.authorHuang, Yining
dc.contributor.authorLindley, Richard
dc.contributor.authorChen, Xiaoying
dc.contributor.authorArima, Hisatomi
dc.contributor.authorChen, Guofang
dc.contributor.authorLi, Qiang
dc.contributor.authorBillot, Laurent
dc.contributor.authorDelcourt, Candice
dc.contributor.authorBath, Philip
dc.contributor.authorBroderick, Joseph
dc.contributor.authorDemchuk, Andrew
dc.contributor.authorDonnan, Geoffrey
dc.contributor.authorDurham, Alice
dc.contributor.authorLavados, Pablo
dc.contributor.authorLee, Tsong-Hai
dc.contributor.authorLevi, Christopher
dc.contributor.authorMartins, Sheila
dc.contributor.authorOlavarria, Veronica
dc.contributor.authorPandian, Jeyaraj
dc.contributor.authorParsons, Mark
dc.contributor.authorPontes-Neto, Octavio
dc.contributor.authorRicci, Stefano
dc.contributor.authorSato, Shoichiro
dc.contributor.authorSharma, Vijay
dc.contributor.authorSilva, Federico
dc.contributor.authorSong, Lili
dc.contributor.authorThang, Nguyen
dc.contributor.authorWardlaw, Joanna
dc.contributor.authorWang, Ji-Guang
dc.contributor.authorWang, Xia
dc.contributor.authorWoodward, Mark
dc.contributor.authorChalmers, John
dc.contributor.authorRobinson, Thompson
dc.contributor.authorENCHANTED Investigators and Coordinators
dc.date.accessioned2020-09-04T15:41:25Z
dc.date.available2020-09-04T15:41:25Z
dc.date.issued2019-03
dc.description.abstractBackground Systolic blood pressure of more than 185 mm Hg is a contraindication to thrombolytic treatment with intravenous alteplase in patients with acute ischaemic stroke, but the target systolic blood pressure for optimal outcome is uncertain. We assessed intensive blood pressure lowering compared with guideline-recommended blood pressure lowering in patients treated with alteplase for acute ischaemic stroke. Methods We did an international, partial-factorial, open-label, blinded-endpoint trial of thrombolysis-eligible patients (age ≥18 years) with acute ischaemic stroke and systolic blood pressure 150 mm Hg or more, who were screened at 110 sites in 15 countries. Eligible patients were randomly assigned (1:1, by means of a central, web-based program) within 6 h of stroke onset to receive intensive (target systolic blood pressure 130–140 mm Hg within 1 h) or guideline (target systolic blood pressure <180 mm Hg) blood pressure lowering treatment over 72 h. The primary outcome was functional status at 90 days measured by shift in modified Rankin scale scores, analysed with unadjusted ordinal logistic regression. The key safety outcome was any intracranial haemorrhage. Primary and safety outcome assessments were done in a blinded manner. Analyses were done on intention-to-treat basis. This trial is registered with ClinicalTrials.gov, number NCT01422616. Findings Between March 3, 2012, and April 30, 2018, 2227 patients were randomly allocated to treatment groups. After exclusion of 31 patients because of missing consent or mistaken or duplicate randomisation, 2196 alteplase-eligible patients with acute ischaemic stroke were included: 1081 in the intensive group and 1115 in the guideline group, with 1466 (67·4%) administered a standard dose among the 2175 actually given intravenous alteplase. Median time from stroke onset to randomisation was 3·3 h (IQR 2·6–4·1). Mean systolic blood pressure over 24 h was 144·3 mm Hg (SD 10·2) in the intensive group and 149·8 mm Hg (12·0) in the guideline group (p<0·0001). Primary outcome data were available for 1072 patients in the intensive group and 1108 in the guideline group. Functional status (mRS score distribution) at 90 days did not differ between groups (unadjusted odds ratio [OR] 1·01, 95% CI 0·87–1·17, p=0·8702). Fewer patients in the intensive group (160 [14·8%] of 1081) than in the guideline group (209 [18·7%] of 1115) had any intracranial haemorrhage (OR 0·75, 0·60–0·94, p=0·0137). The number of patients with any serious adverse event did not differ significantly between the intensive group (210 [19·4%] of 1081) and the guideline group (245 [22·0%] of 1115; OR 0·86, 0·70–1·05, p=0·1412). There was no evidence of an interaction of intensive blood pressure lowering with dose (low vs standard) of alteplase with regard to the primary outcome. Interpretation Although intensive blood pressure lowering is safe, the observed reduction in intracranial haemorrhage did not lead to improved clinical outcome compared with guideline treatment. These results might not support a major shift towards this treatment being applied in those receiving alteplase for mild-to-moderate acute ischaemic stroke. Further research is required to define the underlying mechanisms of benefit and harm resulting from early intensive blood pressure lowering in this patient group.es
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dc.identifier.citationCraig S Anderson, Yining Huang, Richard I Lindley, Xiaoying Chen, Hisatomi Arima, Guofang Chen, Qiang Li, Laurent Billot, Candice Delcourt, Philip M Bath, Joseph P Broderick, Andrew M Demchuk, Geoffrey A Donnan, Alice C Durham, Pablo M Lavados, Tsong-Hai Lee, Christopher Levi, Sheila O Martins, Veronica V Olavarria, Jeyaraj D Pandian, Mark W Parsons, Octavio M Pontes-Neto, Stefano Ricci, Shoichiro Sato, Vijay K Sharma, Federico Silva, Lili Song, Nguyen H Thang, Joanna M Wardlaw, Ji-Guang Wang, Xia Wang, Mark Woodward, John Chalmers, Thompson G Robinson, Craig S. Anderson, Yining Huang, Richard I. Lindley, Xiaoying Chen, Hisatomi Arima, Guofang Chen, Qiang Li, Laurent Billot, Candice Delcourt, Philip M. Bath, Joseph P. Broderick, Andrew M. Demchuk, Geoffrey A. Donnan, Alice C. Durham, Pablo M. Lavados, Tsong-Hai Lee, Christopher Levi, Sheila O. Martins, Veronica V. Olavarria, Jeyaraj D. Pandian, Mark W. Parsons, Octavio M. Pontes-Neto, Stefano Ricci, Shoichiro Sato, Vijay K. Sharma, Federico Silva, Lili Song, Nguyen H. Thang, Joanna M. Wardlaw, Ji-Guang Wang, Xia Wang, Mark Woodward, John Chalmers, Thompson G. Robinson, Jong S. Kim, Christian Stapf, R. John Simes, Graeme J. Hankey, Peter Sandercock, Marie-Germaine Bousser, K.S. Lawrence Wong, Anish Scaria, Yoichiro Hirakawa, Tom J. Moullaali, Cheryl Carcel, Penny Gordon, Sully X. Fuentes-Patarroyo, Dino Benito, Ruiqi Chen, Yongjun Cao, Amy Kunchok, Stephen Winters, Shelagh Coutts, Sohei Yoshimura, Shoujiang You, Jie Yang, Guojun Wu, Shihong Zhang, Lisa Manning, Amit Mistri, Victoria Haunton, Jatinder Minhas, Alejandra Malavera, Joyce Lim, Leibo Liu, Namrata N. Kumar, Nicole Tay, Kerry Jenson, Sarah Richtering, Sharon Tucker, Elizabeth Knight, Elizaveta Ivanova, Emma Thembani, Elizabeth Odgers, Elizabeth Sanders, Sabrina Small, Ruchita Vaghasiya, Manuela Armenis, Paul Donnelly, Merza A. Baig, Nick Blacklock, Bala Naidu, Helen Monaghan, Phillipa Smith, Parisa Glass, Xuejie Bai, Qiancheng Li, Pingping Zhu, Liang Kong, Ruihong He, He Zhao, Jiajie Lv, Haijing Jia, Zhen Xi, Yuhan Cong, Buliang Cui, Hua Deng, Ying Guo, Lingyu He, Ruolan Jia, Nan Li, Wei Li, Mengxiao Liu, Meng Zhang, Ziwei Xu, Ting Zhang, Yan Zhao, Philip Gregory, Yunjeong In, Su J. Kim, Jung E. Ahn, Sul H. Kim, Young L. Hong, Francisca González-McCawley, Magda C.O. Martins, Bernardita Portales, Ching-Yi Wang, Shan-Jen Ryu, Hardeep Aujla, Sue Lewin, Tracy Kumar, Sara Barrows, Ahtasam Ebraimo, Hong H. Uyen, Nguyen A. Giang, Le T.M. Linh, Le T.T. An, Do M. Phuong, Pham V.B. Ngoc, Nguyen M. Hang, Nguyen T.B. Tran, Ha T.T. Hien, Mai B. Yen, Ngo T.B. Tram, Tran T.T. Truc, Nguyen A. Hoa, Nguyen T.B. Thuan, Ha T.K. Oanh, Deepti Arora, Shweta J. Verma, M. Krause, M. Priglinger, S. Day, S. Jala, L. Davies, E. Ray, S. Celestino, L.Y. Law, T. Wijeratne, G. Ng, K. Nagao, G. Weiss, N. Titton, C. Batista, D. Zãn, L. 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Intensive blood pressure reduction with intravenous thrombolysis therapy for acute ischaemic stroke (ENCHANTED): an international, randomised, open-label, blinded-endpoint, phase 3 trial, The Lancet, Volume 393, Issue 10174, 2019, Pages 877-888, ISSN 0140-6736, https://doi.org/10.1016/S0140-6736(19)30038-8.es
dc.identifier.urihttp://dx.doi.org/10.1016/ S0140-6736(19)30038-8es
dc.identifier.urihttp://hdl.handle.net/11447/3396
dc.language.isoenes
dc.publisherElsevier Ltd.es
dc.sourceThe Lancet
dc.subjectBlood pressurees
dc.subjectThrombolytic treatmentes
dc.titleIntensive blood pressure reduction with intravenous thrombolysis therapy for acute ischaemic stroke (ENCHANTED): an international, randomised, open-label, blinded-endpoint, phase 3 triales
dc.typeArticlees

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