PMID- 36063821 OWN - NLM STAT- MEDLINE DCOM- 20220928 LR - 20220930 IS - 1474-547X (Electronic) IS - 0140-6736 (Linking) VI - 400 IP - 10357 DP - 2022 Sep 24 TI - Factor XIa inhibition with asundexian after acute non-cardioembolic ischaemic stroke (PACIFIC-Stroke): an international, randomised, double-blind, placebo-controlled, phase 2b trial. PG - 997-1007 LID - S0140-6736(22)01588-4 [pii] LID - 10.1016/S0140-6736(22)01588-4 [doi] AB - BACKGROUND: Asundexian (Bayer AG, Leverkusen, Germany), an oral small molecule factor XIa (FXIa) inhibitor, might prevent thrombosis without increasing bleeding. Asundexian's effect for secondary prevention of recurrent stroke is unknown. METHODS: In this randomised, double-blind, placebo-controlled, phase 2b dose-finding trial (PACIFIC-Stroke), patients with acute (within 48 h) non-cardioembolic ischaemic stroke were recruited from 196 hospitals in 23 countries. Patients were eligible if they were aged 45 years or older, to be treated with antiplatelet therapy, and able to have a baseline MRI (either before or within 72 h of randomisation). Eligible participants were randomly assigned (1:1:1:1), using an interactive web-based response system and stratified according to anticipated antiplatelet therapy (single vs dual), to once daily oral asundexian (BAY 2433334) 10 mg, 20 mg, or 50 mg, or placebo in addition to usual antiplatelet therapy, and were followed up during treatment for 26-52 weeks. Brain MRIs were obtained at study entry and at 26 weeks or as soon as possible after treatment discontinuation. The primary efficacy outcome was the dose-response effect on the composite of incident MRI-detected covert brain infarcts and recurrent symptomatic ischaemic stroke at or before 26 weeks after randomisation. The primary safety outcome was major or clinically relevant non-major bleeding as defined by International Society on Thrombosis and Haemostasis criteria. The efficacy outcome was assessed in all participants assigned to treatment, and the safety outcome was assessed in all participants who received at least one dose of study treatment. This study is registered with ClinicalTrials.gov, NCT04304508, and is now complete. FINDINGS: Between June 15, 2020, and July 22, 2021, 1880 patients were screened and 1808 participants were randomly assigned to asundexian 10 mg (n=455), 20 mg (n=450), or 50 mg (n=447), or placebo (n=456). Mean age was 67 years (SD 10) and 615 (34%) participants were women, 1193 (66%) were men, 1505 (83%) were White, and 268 (15%) were Asian. The mean time from index stroke to randomisation was 36 h (SD 10) and median baseline National Institutes of Health Stroke Scale score was 2.0 (IQR 1.0-4.0). 783 (43%) participants received dual antiplatelet treatment for a mean duration of 70.1 days (SD 113.4) after randomisation. At 26 weeks, the primary efficacy outcome was observed in 87 (19%) of 456 participants in the placebo group versus 86 (19%) of 455 in the asundexian 10 mg group (crude incidence ratio 0.99 [90% CI 0.79-1.24]), 99 (22%) of 450 in the asundexian 20 mg group (1.15 [0.93-1.43]), and 90 (20%) of 447 in the asundexian 50 mg group (1.06 [0.85-1.32]; t statistic -0.68; p=0.80). The primary safety outcome was observed in 11 (2%) of 452 participants in the placebo group versus 19 (4%) of 445 in the asundexian 10 mg group, 14 (3%) of 446 in the asundexian 20 mg group, and 19 (4%) of 443 in the asundexian 50 mg group (all asundexian doses pooled vs placebo hazard ratio 1.57 [90% CI 0.91-2.71]). INTERPRETATION: In this phase 2b trial, FXIa inhibition with asundexian did not reduce the composite of covert brain infarction or ischaemic stroke and did not increase the composite of major or clinically relevant non-major bleeding compared with placebo in patients with acute, non-cardioembolic ischaemic stroke. FUNDING: Bayer AG. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Shoamanesh, Ashkan AU - Shoamanesh A AD - Division of Neurology, McMaster University, Population Health Research Institute, Hamilton, ON, Canada. Electronic address: ashkan.shoamanesh@phri.ca. FAU - Mundl, Hardi AU - Mundl H AD - TA Thrombosis and Vascular Medicine, Bayer AG, Wuppertal, Germany. FAU - Smith, Eric E AU - Smith EE AD - Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. FAU - Masjuan, Jaime AU - Masjuan J AD - Neurology Department, Hospital Universitario Ramon y Cajal, Madrid, Spain; Departamento de Medicina, Facultad de Medicina, Universidad de Alcala, IRYCIS, RICORS-ICTUS, Madrid, Spain. FAU - Milanov, Ivan AU - Milanov I AD - Medical University, University Hospital for Neurology and Psychiatry "St Naum", Sofia, Bulgaria. FAU - Hirano, Teruyuki AU - Hirano T AD - Department of Stroke and Cerebrovascular Medicine, School of Medicine, Kyorin University, Tokyo, Japan. FAU - Agafina, Alina AU - Agafina A AD - Clinical Research Department, City Hospital #40, Saint Petersburg, Russia. FAU - Campbell, Bruce AU - Campbell B AD - Department of Medicine and Neurology, Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia. FAU - Caso, Valeria AU - Caso V AD - Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia, Italy. FAU - Mas, Jean-Louis AU - Mas JL AD - Department of Neurology, GHU Paris, Hopital Sainte-Anne, Universite Paris-Cite, Inserm U1266, Paris, France. FAU - Dong, Qiang AU - Dong Q AD - Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China. FAU - Turcani, Peter AU - Turcani P AD - 1st Department of Neurology, Medical Faculty, Comenius University, Bratislava, Slovakia. FAU - Christensen, Hanne AU - Christensen H AD - Department of Neurology, University Hospital of Copenhagen, Bispebjerg, Denmark. FAU - Ferro, Jose M AU - Ferro JM AD - Instituto de Medicina Molecular Joao Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal. FAU - Veltkamp, Roland AU - Veltkamp R AD - Neurology Department, Alfried-Krupp Hospital, Essen, Germany. FAU - Mikulik, Robert AU - Mikulik R AD - International Clinical Research Center and Neurology Department, St Anne's University Hospital, Brno, Czech Republic; Medical Faculty, Masaryk University, Brno, Czech Republic. FAU - De Marchis, Gian Marco AU - De Marchis GM AD - Department of Neurology and Stroke Center, University Hospital of Basel and University of Basel, Basel, Switzerland. FAU - Robinson, Thompson AU - Robinson T AD - College of Life Sciences, University of Leicester, Leicester, UK. FAU - Lemmens, Robin AU - Lemmens R AD - Department of Neurosciences, Experimental Neurology, KU Leuven - University of Leuven, Leuven, Belgium; VIB-KU Leuven Center for Brain and Disease Research, Leuven, Belgium; Department of Neurology, University Hospitals Leuven, Leuven, Belgium. FAU - Stepien, Adam AU - Stepien A AD - Department of Neurology, Military Institute of Medicine, Warsaw, Poland. FAU - Greisenegger, Stefan AU - Greisenegger S AD - Department of Neurology, Medical University of Vienna, Vienna, Austria. FAU - Roine, Risto AU - Roine R AD - Division of Clinical Neurosciences, University of Turku, Turku, Finland. FAU - Csiba, Laszlo AU - Csiba L AD - DE Clinical Center (DEKK), Health Service Units, Clinics, Department of Neurology, University of Debrecen, Debrecen, Hungary. FAU - Khatri, Pooja AU - Khatri P AD - Department of Neurology and Rehabilitation Sciences, University of Cincinnati, Cincinnati, OH, USA. FAU - Coutinho, Jonathan AU - Coutinho J AD - Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands. FAU - Lindgren, Arne G AU - Lindgren AG AD - Department of Clinical Sciences Lund (Neurology), Lund University, Lund, Sweden; Department of Neurology, Skane University Hospital, Lund, Sweden. FAU - Demchuk, Andrew M AU - Demchuk AM AD - Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Radiology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. FAU - Colorado, Pablo AU - Colorado P AD - Bayer US Pharmaceuticals, Whippany, NJ, USA. FAU - Kirsch, Bodo AU - Kirsch B AD - Statistics and Data Insights, Bayer AG, Berlin, Germany. FAU - Neumann, Christoph AU - Neumann C AD - Bayer AG, Wuppertal, Germany. FAU - Heenan, Laura AU - Heenan L AD - Department of Statistics, McMaster University, Population Health Research Institute, Hamilton, ON, Canada. FAU - Xu, Lizhen AU - Xu L AD - Department of Statistics, McMaster University, Population Health Research Institute, Hamilton, ON, Canada. FAU - Connolly, Stuart J AU - Connolly SJ AD - Department of Medicine, McMaster University, Population Health Research Institute, Hamilton, ON, Canada. FAU - Hart, Robert G AU - Hart RG AD - Division of Neurology, McMaster University, Population Health Research Institute, Hamilton, ON, Canada. CN - PACIFIC-Stroke Investigators LA - eng SI - ClinicalTrials.gov/NCT04304508 PT - Journal Article PT - Randomized Controlled Trial DEP - 20220902 PL - England TA - Lancet JT - Lancet (London, England) JID - 2985213R RN - 0 (Anticoagulants) RN - 0 (Platelet Aggregation Inhibitors) RN - EC 3.4.21.27 (Factor XIa) SB - IM MH - Aged MH - Anticoagulants/therapeutic use MH - *Brain Ischemia/drug therapy/prevention & control MH - Double-Blind Method MH - Factor XIa MH - Female MH - Hemorrhage/chemically induced/drug therapy MH - Humans MH - *Ischemic Stroke MH - Male MH - Platelet Aggregation Inhibitors/therapeutic use MH - *Stroke/drug therapy/prevention & control MH - *Thrombosis MH - Treatment Outcome COIS- Declaration of interests All coauthors or their institutions received financial support from Bayer for participation in the PACIFIC-Stroke trial except HM, PC, BK, and CN who are employees of Bayer. HM, PC, BK, and CN do not hold any stock or stock options with Bayer. EDAT- 2022/09/06 06:00 MHDA- 2022/09/28 06:00 CRDT- 2022/09/05 19:02 PHST- 2022/06/29 00:00 [received] PHST- 2022/08/12 00:00 [revised] PHST- 2022/08/12 00:00 [accepted] PHST- 2022/09/06 06:00 [pubmed] PHST- 2022/09/28 06:00 [medline] PHST- 2022/09/05 19:02 [entrez] AID - S0140-6736(22)01588-4 [pii] AID - 10.1016/S0140-6736(22)01588-4 [doi] PST - ppublish SO - Lancet. 2022 Sep 24;400(10357):997-1007. doi: 10.1016/S0140-6736(22)01588-4. Epub 2022 Sep 2.