The Second Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage Trial
INTERACT2
An International Randomised Controlled Trial to Establish the Effects of Early Intensive Blood Pressure Lowering in Patients With Intracerebral Haemorrhage.
1 other identifier
interventional
2,839
18 countries
50
Brief Summary
The purpose of this academic lead study is to determine if a treatment strategy of early intensive blood pressure (BP) lowering compared to conservative BP lowering policy in patients with elevated blood pressure within 6 hours of acute intracerebral haemorrhage (ICH) improves the outcome of death and disability at 3 months after onset.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2008
Longer than P75 for not_applicable
50 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 14, 2008
CompletedFirst Posted
Study publicly available on registry
July 16, 2008
CompletedStudy Start
First participant enrolled
September 1, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2012
CompletedResults Posted
Study results publicly available
October 28, 2013
CompletedDecember 13, 2013
November 1, 2013
4.3 years
July 14, 2008
August 21, 2013
November 19, 2013
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
A Composite of Death or Dependency, With Dependency Being Defined by a Score of 3 to 5 on the Modified Rankin Scale (mRS)
90 days
Secondary Outcomes (1)
Death at 90 Days
90 days
Study Arms (2)
Intensive BP lowering
OTHERManagement policy to lower the systolic Blood pressure (BP) to a target of 140mmHg within 1 hour of randomization and sustained for 24 hours. Sites were provided with protocols for different intravenous agents and used whichever routinely available drugs were in their hospital.
Guideline recommended BP lowering
OTHERPatients received management of BP based on the standard guidelines at the time, as published by the American Heart Association (AHA) in 2007 and 2010. The attending clinician may consider commencing BP treatment if the systolic level is greater than 180 mmHg, however and the first line treatment will be oral (including nasogastric if required) and/or transdermal routes. Should control of systolic BP not be achieved via these routes, intravenous treatment may be started until the target systolic BP of 180 mmHg is achieved.
Interventions
The trial is an assessment of BP lowering management strategies, using routinely available drugs. There is some flexibility in the use of particular BP lowering agents to achieve BP targets.
Eligibility Criteria
You may qualify if:
- Patients with CT-confirmed spontaneous Intracerebral Haemorrhage (ICH)
- Elevated systolic blood pressure (\>150mmHg and \<220mmHg)
- Capacity to commence randomly assigned treatment within 6 hours of onset of ICH.
- Able to be 'actively' treated and admitted to a monitored facility
You may not qualify if:
- Clear indication or contraindication to intensive BP lowering.
- Evidence ICH secondary to a structural abnormality
- Use of thrombolytic agent
- Previous ischaemic stroke within 30 days
- A very high likelihood that the patient will die within the next 24 hours on the basis of clinical and/or radiological criteria
- Score of 3-5 on the Glasgow Coma Scale (indicating deep coma)
- Significant pre-stroke disability or advanced dementia
- Planned early neurological intervention
- Participation in another clinical trial.
- A high likelihood that the patient will not adhere to the study treatment and follow-up regimen.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (62)
Mayo Clinic
Rochester, Minnesota, 55905, United States
Regional Coordinating Centre Argentina
Buenos Aires, Argentina
Canberra Hospital
Canberra, Australian Capital Territory, 2605, Australia
Concord Hospital
Concord, New South Wales, 2138, Australia
Gosford Hospital
Gosford, New South Wales, 2250, Australia
John Hunter Hospital
Newcastle, New South Wales, 2310, Australia
Royal Prince Alfred Hospital
Sydney, New South Wales, 2050, Australia
Royal Brisbane and Women's Hospital Health Service District
Brisbane, Queensland, 4029, Australia
Western Hospital
Melbourne, Victoria, 3011, Australia
Royal Melbourne Hospital
Melbourne, Victoria, 3050, Australia
Austin Repatriation General Hospital
Melbourne, Victoria, 3081, Australia
Box Hill Hospital
Melbourne, Victoria, 3128, Australia
Monash Medical Centre
Melbourne, Victoria, 3168, Australia
Sir Charles Gairdner Hospital
Perth, Western Australia, 6009, Australia
University of Graz
Graz, 8036, Austria
Medizinische Universitat Innsbruck
Innsbruck, A-6020, Austria
Allgemeines Krankenhaus Linz
Linz, 4020, Austria
AZ-VUB (University hospital Brussels)
Jette, 1090, Belgium
CHU Tivoli
La Louvière, 7100, Belgium
Regional Coordinating Centre Brazil
São Paulo, Brazil
Regional Coordnating Centre Chile
Santiago, Chile
Regional Coordinating Centre China: The George Institute China
Beijing, Beijing Municipality, 100088, China
Regional Coordinating and Monitoring Centre: Centre for Epidemiological Studies and Clinical Trials, Ruijin Hospital, Shanghai Institute of Hypertension, Shanghai Second Medical University
Shanghai, 200025, China
Helsinki University Central Hospital
Helsinki, 00290, Finland
Hôpital Jean Minjoz
Besançon, 25030, France
Hopital de la Cavale-Blanche
Brest, 29609, France
Centre Hospitalier de Calais
Calais, 62107, France
CHU Bicetre
Le Kremlin-Bicêtre, 94275, France
Hopital Roger Salengro
Lille, 59037, France
Centre Hospitalier de Meaux
Meaux, 77104, France
CHU Nantes - Hopital Laennec
Nantes, 44093, France
Hopital de Lariboisiere
Paris, 75010, France
Centre Hospitalier Sainte Anne
Paris, 75014, France
Regional Coordinating Centre Europe: Unite de recherche clinique Lariboisiere
Paris, 75475, France
Hôpital de la Salpêtrière
Paris, 75651, France
Groupe Hospitalier Paris Saint-Joseph
Paris, 75674, France
Hopital Tenon
Paris, 75970, France
Hopital Delafontaine
Saint-Denis, 27993, France
Centre Hospitalier de Versailles
Versailles, 78157, France
Charite Campus Benjamin Franklin (CCBF)
Berlin, 12200, Germany
Universitatsklinikum Dresden
Dresden, 01307, Germany
Heinrich-Heine-Universitat
Düsseldorf, 40225, Germany
Universitat Erlangen-Nurnberg
Erlangen, 91054, Germany
Klinikum Frankfurt
Frankfurt, 15236, Germany
Universitatsklinikum Frankfurt
Frankfurt, 60528, Germany
Martin-Luther-Universität
Halle, 06120, Germany
Universitatsklinikum Hamburg-Eppendorf
Hamburg, 20246, Germany
Asklepios Klinik Barmbek
Hamburg, 22291, Germany
Asklepios Klinik Altona
Hamburg, 22763, Germany
University of Heidelberg
Heidelberg, 69120, Germany
Universitatsklinikum Mannheim
Mannheim, 68167, Germany
Universitatsklinikum Ulm, Oberer Eselsberg
Ulm, 89081, Germany
Prince of Wales Hospital
Shatin, Hong Kong
Regional Coordinating Centre India: The George Institute India
Hyderabad, Andhra Pradesh, 500 033, India
Ospedale di Citta di Castello
Città di Castello, 6012, Italy
The Aga Khan University Hospital
Karachi, Pakistan
Hospital de Sao Joao
Porto, 4202-451, Portugal
Hospital General Universitario de Albacete
Albacete, Spain
Hospital Clinic Barcelona
Barcelona, 08036, Spain
Hospital de Girona Dr. Josep Trueta
Girona, 17007, Spain
Inselspital Neurologische Klinik
Bern, 3010, Switzerland
Regional Coordinating Centre United Kingdom
Leicester, United Kingdom
Related Publications (41)
Anderson CS, Huang Y, Wang JG, Arima H, Neal B, Peng B, Heeley E, Skulina C, Parsons MW, Kim JS, Tao QL, Li YC, Jiang JD, Tai LW, Zhang JL, Xu E, Cheng Y, Heritier S, Morgenstern LB, Chalmers J; INTERACT Investigators. Intensive blood pressure reduction in acute cerebral haemorrhage trial (INTERACT): a randomised pilot trial. Lancet Neurol. 2008 May;7(5):391-9. doi: 10.1016/S1474-4422(08)70069-3. Epub 2008 Apr 7.
PMID: 18396107BACKGROUNDDelcourt C, Huang Y, Wang J, Heeley E, Lindley R, Stapf C, Tzourio C, Arima H, Parsons M, Sun J, Neal B, Chalmers J, Anderson C; INTERACT2 Investigators. The second (main) phase of an open, randomised, multicentre study to investigate the effectiveness of an intensive blood pressure reduction in acute cerebral haemorrhage trial (INTERACT2). Int J Stroke. 2010 Apr;5(2):110-6. doi: 10.1111/j.1747-4949.2010.00415.x.
PMID: 20446945BACKGROUNDWang X, Ren X, Li Q, Ouyang M, Chen C, Delcourt C, Chen X, Wang J, Robinson T, Arima H, Ma L, Hu X, You C, Li G, Jie Y, Lin Y, Billot L, Munoz-Venturelli P, Martins S, Pontes-Neto OM, Liu L, Chalmers J, Carcel C, Song L, Anderson CS; INTERACT Investigators. Effects of blood pressure lowering in relation to time in acute intracerebral haemorrhage: a pooled analysis of the four INTERACT trials. Lancet Neurol. 2025 Jul;24(7):571-579. doi: 10.1016/S1474-4422(25)00160-7.
PMID: 40541207DERIVEDYou S, Zheng D, Chen X, Wang X, Ouyang M, Han Q, Cao Y, Delcourt C, Song L, Carcel C, Arima H, Liu CF, Lindley RI, Robinson T, Anderson CS, Chalmers J; INTERACT Investigators. Subacute Neurological Improvement Predicts Favorable Functional Recovery After Intracerebral Hemorrhage: INTERACT2 Study. Stroke. 2025 Mar;56(3):621-627. doi: 10.1161/STROKEAHA.124.048847. Epub 2025 Feb 3.
PMID: 39895502DERIVEDYou S, Zheng D, Yoshimura S, Ouyang M, Han Q, Wang X, Cao Y, Delcourt C, Song L, Arima H, Chen X, Liu CF, Lindley RI, Robinson T, Anderson CS, Chalmers J; INTERACT Investigators. Optimum Baseline Clinical Severity Scale Cut Points for Prognosticating Intracerebral Hemorrhage: INTERACT Studies. Stroke. 2024 Jan;55(1):139-145. doi: 10.1161/STROKEAHA.123.044538. Epub 2023 Nov 29.
PMID: 38018833DERIVEDMalavera A, You S, Zheng D, Delcourt C, Anderson CS; INTERACT2 Investigators. Prognostic significance of early pyrexia in acute intracerebral haemorrhage: The INTERACT2 study. J Neurol Sci. 2021 Apr 15;423:117364. doi: 10.1016/j.jns.2021.117364. Epub 2021 Feb 26.
PMID: 33647734DERIVEDSandset EC, Wang X, Carcel C, Sato S, Delcourt C, Arima H, Stapf C, Robinson T, Lavados P, Chalmers J, Woodward M, Anderson CS. Sex differences in treatment, radiological features and outcome after intracerebral haemorrhage: Pooled analysis of Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage trials 1 and 2. Eur Stroke J. 2020 Dec;5(4):345-350. doi: 10.1177/2396987320957513. Epub 2020 Sep 20.
PMID: 33598552DERIVEDSong L, Wang X, Ouyang M, Sun L, Chen X, Arima H, Sandset EC, Delcourt C, Wang J, Chen G, Robinson T, Lindley RI, Chalmers J, Anderson CS; INTERACT2 Investigators. Associations of an Abnormal Physiological Score With Outcomes in Acute Intracerebral Hemorrhage: INTERACT2 Study. Stroke. 2021 Jan;52(2):722-725. doi: 10.1161/STROKEAHA.120.030435. Epub 2021 Jan 11.
PMID: 33423518DERIVEDWang X, Moullaali TJ, Li Q, Berge E, Robinson TG, Lindley R, Zheng D, Delcourt C, Arima H, Song L, Chen X, Yang J, Chalmers J, Anderson CS, Sandset EC. Utility-Weighted Modified Rankin Scale Scores for the Assessment of Stroke Outcome: Pooled Analysis of 20 000+ Patients. Stroke. 2020 Aug;51(8):2411-2417. doi: 10.1161/STROKEAHA.119.028523. Epub 2020 Jul 9.
PMID: 32640944DERIVEDYou S, Zheng D, Delcourt C, Sato S, Cao Y, Zhang S, Yang J, Wang X, Lindley RI, Robinson T, Anderson CS, Chalmers J. Determinants of Early Versus Delayed Neurological Deterioration in Intracerebral Hemorrhage. Stroke. 2019 Jun;50(6):1409-1414. doi: 10.1161/STROKEAHA.118.024403. Epub 2019 Apr 18.
PMID: 31136288DERIVEDWang X, Sandset EC, Moullaali TJ, Chen G, Song L, Carcel C, Delcourt C, Woodward M, Robinson T, Chalmers J, Arima H, Anderson CS; INTERACT2 Investigators. Determinants of the high admission blood pressure in mild-to-moderate acute intracerebral hemorrhage. J Hypertens. 2019 Jul;37(7):1463-1466. doi: 10.1097/HJH.0000000000002056.
PMID: 31085948DERIVEDChen R, Wang X, Anderson CS, Robinson T, Lavados PM, Lindley RI, Chalmers J, Delcourt C. Infratentorial Intracerebral Hemorrhage. Stroke. 2019 May;50(5):1257-1259. doi: 10.1161/STROKEAHA.118.023766.
PMID: 30890109DERIVEDMoullaali TJ, Wang X, Martin RH, Shipes VB, Qureshi AI, Anderson CS, Palesch YY. Statistical analysis plan for pooled individual patient data from two landmark randomized trials (INTERACT2 and ATACH-II) of intensive blood pressure lowering treatment in acute intracerebral hemorrhage. Int J Stroke. 2019 Apr;14(3):321-328. doi: 10.1177/1747493018813695. Epub 2018 Nov 12.
PMID: 30418098DERIVEDDelcourt C, Sato S, Zhang S, Sandset EC, Zheng D, Chen X, Hackett ML, Arima H, Hata J, Heeley E, Al-Shahi Salman R, Robinson T, Davies L, Lavados PM, Lindley RI, Stapf C, Chalmers J, Anderson CS; INTERACT2 Investigators. Intracerebral hemorrhage location and outcome among INTERACT2 participants. Neurology. 2017 Apr 11;88(15):1408-1414. doi: 10.1212/WNL.0000000000003771. Epub 2017 Feb 24.
PMID: 28235817DERIVEDDelcourt C, Zheng D, Chen X, Hackett M, Arima H, Hata J, Heeley E, Al-Shahi Salman R, Woodward M, Huang Y, Robinson T, Lavados PM, Lindley RI, Stapf C, Davies L, Chalmers J, Anderson CS, Sato S; INTERACT Investigators. Associations with health-related quality of life after intracerebral haemorrhage: pooled analysis of INTERACT studies. J Neurol Neurosurg Psychiatry. 2017 Jan;88(1):70-75. doi: 10.1136/jnnp-2016-314414. Epub 2016 Oct 21.
PMID: 27919055DERIVEDMunoz Venturelli P, Wang X, Zahuranec DB, Lavados PM, Stapf C, Lindley R, Delcourt C, Chalmers J, Anderson CS, Robinson TG, Robinson TG; INTERACT2 Investigators. Withdrawal of active treatment after intracerebral haemorrhage in the INTERACT2 study. Age Ageing. 2017 Mar 1;46(2):329-332. doi: 10.1093/ageing/afw187.
PMID: 27831492DERIVEDSong L, Sandset EC, Arima H, Heeley E, Delcourt C, Chen G, Yang J, Wu G, Wang X, Lavados PM, Huang Y, Stapf C, Wang J, Robinson TG, Chalmers J, Lindley RI, Anderson CS; INTERACT2 Investigators. Early blood pressure lowering in patients with intracerebral haemorrhage and prior use of antithrombotic agents: pooled analysis of the INTERACT studies. J Neurol Neurosurg Psychiatry. 2016 Dec;87(12):1330-1335. doi: 10.1136/jnnp-2016-313246. Epub 2016 May 13.
PMID: 27178897DERIVEDQiu M, Sato S, Zheng D, Wang X, Carcel C, Hirakawa Y, Sandset EC, Delcourt C, Arima H, Wang J, Chalmers J, Anderson CS; INTERACT Investigators*. Admission Heart Rate Predicts Poor Outcomes in Acute Intracerebral Hemorrhage: The Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial Studies. Stroke. 2016 Jun;47(6):1479-85. doi: 10.1161/STROKEAHA.115.012382. Epub 2016 May 10.
PMID: 27165954DERIVEDCarcel C, Wang X, Sato S, Stapf C, Sandset EC, Delcourt C, Arima H, Robinson T, Lavados P, Chalmers J, Anderson CS; INTERACT2 Investigators*. Degree and Timing of Intensive Blood Pressure Lowering on Hematoma Growth in Intracerebral Hemorrhage: Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial-2 Results. Stroke. 2016 Jun;47(6):1651-3. doi: 10.1161/STROKEAHA.116.013326. Epub 2016 May 3.
PMID: 27143274DERIVEDDelcourt C, Zhang S, Arima H, Sato S, Al-Shahi Salman R, Wang X, Davies L, Stapf C, Robinson T, Lavados PM, Chalmers J, Heeley E, Liu M, Lindley RI, Anderson CS; INTERACT2 investigators. Significance of Hematoma Shape and Density in Intracerebral Hemorrhage: The Intensive Blood Pressure Reduction in Acute Intracerebral Hemorrhage Trial Study. Stroke. 2016 May;47(5):1227-32. doi: 10.1161/STROKEAHA.116.012921. Epub 2016 Apr 12.
PMID: 27073236DERIVEDMunoz-Venturelli P, Wang X, Lavados PM, Stapf C, Robinson T, Lindley R, Heeley E, Delcourt C, Chalmers J, Anderson CS; INTERACT2 Investigators. Prophylactic heparin in acute intracerebral hemorrhage: a propensity score-matched analysis of the INTERACT2 study. Int J Stroke. 2016 Jul;11(5):549-56. doi: 10.1177/1747493016641113. Epub 2016 Mar 23.
PMID: 27009893DERIVEDZheng D, Arima H, Sato S, Gasparrini A, Heeley E, Delcourt C, Lo S, Huang Y, Wang J, Stapf C, Robinson T, Lavados P, Chalmers J, Anderson CS; INTERACT2 investigators. Low Ambient Temperature and Intracerebral Hemorrhage: The INTERACT2 Study. PLoS One. 2016 Feb 9;11(2):e0149040. doi: 10.1371/journal.pone.0149040. eCollection 2016.
PMID: 26859491DERIVEDSato S, Delcourt C, Heeley E, Arima H, Zhang S, Al-Shahi Salman R, Stapf C, Woo D, Flaherty ML, Vagal A, Levi C, Davies L, Wang J, Robinson T, Lavados PM, Lindley RI, Chalmers J, Anderson CS; INTERACT2 Investigators. Significance of Cerebral Small-Vessel Disease in Acute Intracerebral Hemorrhage. Stroke. 2016 Mar;47(3):701-7. doi: 10.1161/STROKEAHA.115.012147. Epub 2016 Feb 4.
PMID: 26846860DERIVEDSaxena A, Anderson CS, Wang X, Sato S, Arima H, Chan E, Munoz-Venturelli P, Delcourt C, Robinson T, Stapf C, Lavados PM, Wang J, Neal B, Chalmers J, Heeley E; INTERACT2 Investigators. Prognostic Significance of Hyperglycemia in Acute Intracerebral Hemorrhage: The INTERACT2 Study. Stroke. 2016 Mar;47(3):682-8. doi: 10.1161/STROKEAHA.115.011627. Epub 2016 Jan 26.
PMID: 26814235DERIVEDYu S, Arima H, Heeley E, Delcourt C, Krause M, Peng B, Yang J, Wu G, Chen X, Chalmers J, Anderson CS; INTERACT2 Investigators. White blood cell count and clinical outcomes after intracerebral hemorrhage: The INTERACT2 trial. J Neurol Sci. 2016 Feb 15;361:112-6. doi: 10.1016/j.jns.2015.12.033. Epub 2015 Dec 22.
PMID: 26810526DERIVEDMoullaali TJ, Sato S, Wang X, Rabinstein AA, Arima H, Carcel C, Chen G, Robinson T, Heeley E, Chan E, Delcourt C, Stapf C, Cordonnier C, Lindley RI, Chalmers J, Anderson CS; INTERACT Investigators. Prognostic significance of delayed intraventricular haemorrhage in the INTERACT studies. J Neurol Neurosurg Psychiatry. 2017 Jan;88(1):19-24. doi: 10.1136/jnnp-2015-311562. Epub 2016 Jan 8.
PMID: 26746184DERIVEDWang X, Arima H, Yang J, Zhang S, Wu G, Woodward M, Munoz-Venturelli P, Lavados PM, Stapf C, Robinson T, Heeley E, Delcourt C, Lindley RI, Parsons M, Chalmers J, Anderson CS; INTERACT2 Investigators. Mannitol and Outcome in Intracerebral Hemorrhage: Propensity Score and Multivariable Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial 2 Results. Stroke. 2015 Oct;46(10):2762-7. doi: 10.1161/STROKEAHA.115.009357. Epub 2015 Aug 11.
PMID: 26265125DERIVEDSato S, Arima H, Heeley E, Hirakawa Y, Delcourt C, Lindley RI, Robinson T, Huang Y, Morgenstern L, Stapf C, Wang J, Chalmers J, Anderson CS; INTERACT2 Investigators. Off-Hour Admission and Outcomes in Patients with Acute Intracerebral Hemorrhage in the INTERACT2 Trial. Cerebrovasc Dis. 2015;40(3-4):114-20. doi: 10.1159/000434690. Epub 2015 Jul 18.
PMID: 26202097DERIVEDHeeley E, Anderson CS, Woodward M, Arima H, Robinson T, Stapf C, Parsons M, Lavados PM, Huang Y, Wang Y, Crozier S, Parry-Jones A, Wang J, Chalmers J; INTERACT2 Investigators. Poor utility of grading scales in acute intracerebral hemorrhage: results from the INTERACT2 trial. Int J Stroke. 2015 Oct;10(7):1101-7. doi: 10.1111/ijs.12518. Epub 2015 Jun 4.
PMID: 26044442DERIVEDWang X, Arima H, Al-Shahi Salman R, Woodward M, Heeley E, Stapf C, Lavados PM, Robinson T, Huang Y, Wang J, Delcourt C, Anderson CS. Rapid Blood Pressure Lowering According to Recovery at Different Time Intervals after Acute Intracerebral Hemorrhage: Pooled Analysis of the INTERACT Studies. Cerebrovasc Dis. 2015;39(3-4):242-8. doi: 10.1159/000381107. Epub 2015 Mar 25.
PMID: 25823544DERIVEDWang X, Arima H, Heeley E, Delcourt C, Huang Y, Wang J, Stapf C, Robinson T, Woodward M, Chalmers J, Anderson CS; INTERACT2 Investigators. Magnitude of blood pressure reduction and clinical outcomes in acute intracerebral hemorrhage: intensive blood pressure reduction in acute cerebral hemorrhage trial study. Hypertension. 2015 May;65(5):1026-32. doi: 10.1161/HYPERTENSIONAHA.114.05044. Epub 2015 Mar 23.
PMID: 25801872DERIVEDYang J, Arima H, Wu G, Heeley E, Delcourt C, Zhou J, Chen G, Wang X, Zhang S, Yu S, Chalmers J, Anderson CS; INTERACT Investigators. Prognostic significance of perihematomal edema in acute intracerebral hemorrhage: pooled analysis from the intensive blood pressure reduction in acute cerebral hemorrhage trial studies. Stroke. 2015 Apr;46(4):1009-13. doi: 10.1161/STROKEAHA.114.007154. Epub 2015 Feb 24.
PMID: 25712944DERIVEDChan E, Anderson CS, Wang X, Arima H, Saxena A, Moullaali TJ, Heeley E, Delcourt C, Wu G, Wang J, Chen G, Lavados PM, Stapf C, Robinson T, Chalmers J, Huang Y; INTERACT2 Investigators. Significance of intraventricular hemorrhage in acute intracerebral hemorrhage: intensive blood pressure reduction in acute cerebral hemorrhage trial results. Stroke. 2015 Mar;46(3):653-8. doi: 10.1161/STROKEAHA.114.008470. Epub 2015 Feb 12.
PMID: 25677598DERIVEDPriglinger M, Arima H, Anderson C, Krause M; INTERACT Investigators. No relationship of lipid-lowering agents to hematoma growth: pooled analysis of the intensive blood pressure reduction in acute cerebral hemorrhage trials studies. Stroke. 2015 Mar;46(3):857-9. doi: 10.1161/STROKEAHA.114.007664. Epub 2015 Feb 5.
PMID: 25657175DERIVEDSato S, Heeley E, Arima H, Delcourt C, Hirakawa Y, Pamidimukkala V, Li Z, Tao Q, Xu Y, Hennerici MG, Robinson T, Tzourio C, Lindley RI, Chalmers J, Anderson CS; INTERACT Investigators; Anderson CS, Huang Y, Wang JG, Arima H, Neal B, Peng B, Heeley E, Skulina C, Parsons MW, Kim JS, Tao QL, Li YC, Jiang JD, Tai LW, Zhang LJ, Xu E, Cheng Y, Heritier S, Morgenstern LB, Chalmers J. Higher mortality in patients with right hemispheric intracerebral haemorrhage: INTERACT1 and 2. J Neurol Neurosurg Psychiatry. 2015 Dec;86(12):1319-23. doi: 10.1136/jnnp-2014-309870. Epub 2015 Jan 14.
PMID: 25589782DERIVEDWang X, Arima H, Al-Shahi Salman R, Woodward M, Heeley E, Stapf C, Lavados PM, Robinson T, Huang Y, Wang J, Delcourt C, Anderson CS; INTERACT Investigators. Clinical prediction algorithm (BRAIN) to determine risk of hematoma growth in acute intracerebral hemorrhage. Stroke. 2015 Feb;46(2):376-81. doi: 10.1161/STROKEAHA.114.006910. Epub 2014 Dec 11.
PMID: 25503550DERIVEDRadholm K, Arima H, Lindley RI, Wang J, Tzourio C, Robinson T, Heeley E, Anderson CS, Chalmers J; INTERACT2 Investigators. Older age is a strong predictor for poor outcome in intracerebral haemorrhage: the INTERACT2 study. Age Ageing. 2015 May;44(3):422-7. doi: 10.1093/ageing/afu198. Epub 2014 Dec 13.
PMID: 25497513DERIVEDManning L, Hirakawa Y, Arima H, Wang X, Chalmers J, Wang J, Lindley R, Heeley E, Delcourt C, Neal B, Lavados P, Davis SM, Tzourio C, Huang Y, Stapf C, Woodward M, Rothwell PM, Robinson TG, Anderson CS; INTERACT2 investigators. Blood pressure variability and outcome after acute intracerebral haemorrhage: a post-hoc analysis of INTERACT2, a randomised controlled trial. Lancet Neurol. 2014 Apr;13(4):364-73. doi: 10.1016/S1474-4422(14)70018-3. Epub 2014 Feb 13.
PMID: 24530176DERIVEDChen G, Arima H, Wu G, Heeley E, Delcourt C, Zhang P, Rabinstein AA, Robinson T, Stapf C, Huang Y, Song L, Yang J, Wang X, Li Q, Chen X, Chalmers J, Anderson C; INTERACT2 Investigators. Subarachnoid extension of intracerebral hemorrhage and 90-day outcomes in INTERACT2. Stroke. 2014 Jan;45(1):258-60. doi: 10.1161/STROKEAHA.113.003524. Epub 2013 Oct 22.
PMID: 24149007DERIVEDAnderson CS, Heeley E, Huang Y, Wang J, Stapf C, Delcourt C, Lindley R, Robinson T, Lavados P, Neal B, Hata J, Arima H, Parsons M, Li Y, Wang J, Heritier S, Li Q, Woodward M, Simes RJ, Davis SM, Chalmers J; INTERACT2 Investigators. Rapid blood-pressure lowering in patients with acute intracerebral hemorrhage. N Engl J Med. 2013 Jun 20;368(25):2355-65. doi: 10.1056/NEJMoa1214609. Epub 2013 May 29.
PMID: 23713578DERIVEDDelcourt C, Stapf C, Tzourio C, Heritier S, Anderson C. [The second (main) phase of an open, randomised, multicentre study to investigate the effectiveness of an INTEnsive blood pressure Reduction in Acute Cerebral hemorrhage Trial (INTERACT2): protocol and baseline characteristics of patients included in France]. Rev Neurol (Paris). 2012 Apr;168(4):321-7. doi: 10.1016/j.neurol.2011.08.010. Epub 2011 Nov 29. French.
PMID: 22129475DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Professor Craig Anderson
- Organization
- The George Institute for Global Health
Study Officials
- PRINCIPAL INVESTIGATOR
Craig Anderson, PhD
The George Institute
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Senior Director, Neurological and Mental Health Division
Study Record Dates
First Submitted
July 14, 2008
First Posted
July 16, 2008
Study Start
September 1, 2008
Primary Completion
December 1, 2012
Study Completion
December 1, 2012
Last Updated
December 13, 2013
Results First Posted
October 28, 2013
Record last verified: 2013-11