Trial reportThe New England journal of medicine2013
Rapid blood-pressure lowering in patients with acute intracerebral hemorrhage.
Trial report in The New England journal of medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 7 registered trials, which are not on this map. Cited by 605 papers, 14 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
An International Randomised Controlled Trial to Establish the Effects of Early Intensive Blood Pressure Lowering in Patients With Intracerebral Haemorrhage.
A Multi-center Randomised Controlled Trial to Explore the Ideal Individualized Anti-hypertension Strategies in Patients With Severe Stroke at Acute Stage
Changes of Hemodynamics and Vital Organ Function in Intracerebral Hemorrhage During Different General Anesthesia
Clinical Study of the Safety and Efficacy of Analgesia-first Minimal Sedation as an Early Antihypertensive Treatment for Spontaneous Intracerebral Hemorrhage
Proper Timing of Control of Hypertension and Outcome in Acute Spontaneous Intracerebral Hemorrhage.
Is the Ratio of Optic Nerve Sheath Diameter to Eyeball Transverse Diameter Correlated with the Prognosis of Sepsis Associated Encephalopathy in Critically Ill Patients
Efficacy and Safety of an Early Intensive Blood Pressure-Lowering Strategy Using Remifentanil and Dexmedetomidine in Patients With Spontaneous Intracerebral Hemorrhage: A Multicenter, Prospective, Superiority, Randomized Controlled Trial
Who cites it
605 citing papers in PubMed, 14 syntheses or guidelines pooled it, 1,570 citations in OpenAlex.
- Stereotactic Drainage Treatment is Associated with Improved Long-Term Neurological Recovery in Small-to-Moderate Volume Basal Ganglia Hemorrhages: A Systematic Review and Meta-Analysis.Neurocritical care · 2026Pooled it
- The Effect of Intensive Blood Pressure Reduction on Perihematomal Edema After Intracerebral Hemorrhage: A Systematic Review and Meta-Analysis.Brain and behavior · 2026Pooled it
- Blood Pressure Reduction Time Windows in Stroke: A Systematic Review and Network Meta-Analysis.Brain and behavior · 2026Pooled it
- 2025 update to European Stroke Organisation (ESO) guideline on blood pressure management in acute ischaemic stroke and intracerebral haemorrhage.European stroke journal · 2026Guideline
- Executive Summary of the 2024 Philippine Clinical Practice Guidelines on the Diagnosis and Management of Acute Severe Blood Pressure Elevation.Journal of clinical hypertension (Greenwich, Conn.) · 2026Guideline
- Tranexamic acid for spontaneous intracerebral hemorrhage: hematoma control without clinical benefits? A meta-analysis of RCTs.Naunyn-Schmiedeberg's archives of pharmacology · 2026Pooled it
- Prehospital blood pressure lowering in acute hemorrhagic stroke: a systematic review and meta-analysis of randomized controlled clinical trials.European stroke journal · 2026Pooled it
- Acute kidney injury incidence and mortality following spontaneous intracerebral hemorrhage: a systematic review and meta-analysis.Frontiers in medicine · 2026Pooled it
- The Japanese Society of Hypertension Guidelines for the management of elevated blood pressure and hypertension 2025 (JSH2025).Hypertension research : official journal of the Japanese Society of Hypertension · 2026Guideline
- Intensive Blood Pressure Lowering for Intracerebral Hemorrhage: A Systematic Review and Updated Meta-analysis of Randomized Controlled Trials.Neurocritical care · 2025Pooled it
- Surgery for spontaneous supratentorial intracerebral haemorrhage.The Cochrane database of systematic reviews · 2025Pooled it
- Pooled it
- Early blood pressure management in hemorrhagic stroke: a meta-analysis.Journal of neurology · 2023Pooled it
- Effects of subarachnoid extension following intracerebral hemorrhage: A systematic review and meta-analysis.Medicine · 2022Pooled it
- Identifying treatment-responsive patient subgroups in a neutral clinical trial of Intensive blood pressure reduction in acute intracerebral hemorrhage: A post hoc explainable machine learning analysis.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Trial
- Clinical characteristics and outcomes of intracerebral haemorrhage in young vs older adults: insights from the INTERACT3 trial.European stroke journal · 2026Trial
- Trial
- Blood pressure variability in the ATACH2 study: evaluating a target range.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Trial
- Association of Angiotensin Inhibitors with Improved Outcome after Acute Intracerebral Hemorrhage: Secondary Analysis of the INTERACT3 Trial.Cerebrovascular diseases (Basel, Switzerland) · 2026Trial
- Trial
545 more citing papers are in PubMed but not listed here.
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Authors and funding
22 authors at 10 institutions in 7 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWhether rapid lowering of elevated blood pressure would improve the outcome in patients with intracerebral hemorrhage is not known.
methodsWe randomly assigned 2839 patients who had had a spontaneous intracerebral hemorrhage within the previous 6 hours and who had elevated systolic blood pressure to receive intensive treatment to lower their blood pressure (with a target systolic level of <140 mm Hg within 1 hour) or guideline-recommended treatment (with a target systolic level of <180 mm Hg) with the use of agents of the physician's choosing. The primary outcome was death or major disability, which was defined as a score of 3 to 6 on the modified Rankin scale (in which a score of 0 indicates no symptoms, a score of 5 indicates severe disability, and a score of 6 indicates death) at 90 days. A prespecified ordinal analysis of the modified Rankin score was also performed. The rate of serious adverse events was compared between the two groups.
resultsAmong the 2794 participants for whom the primary outcome could be determined, 719 of 1382 participants (52.0%) receiving intensive treatment, as compared with 785 of 1412 (55.6%) receiving guideline-recommended treatment, had a primary outcome event (odds ratio with intensive treatment, 0.87; 95% confidence interval [CI], 0.75 to 1.01; P=0.06). The ordinal analysis showed significantly lower modified Rankin scores with intensive treatment (odds ratio for greater disability, 0.87; 95% CI, 0.77 to 1.00; P=0.04). Mortality was 11.9% in the group receiving intensive treatment and 12.0% in the group receiving guideline-recommended treatment. Nonfatal serious adverse events occurred in 23.3% and 23.6% of the patients in the two groups, respectively.
conclusionsIn patients with intracerebral hemorrhage, intensive lowering of blood pressure did not result in a significant reduction in the rate of the primary outcome of death or severe disability. An ordinal analysis of modified Rankin scores indicated improved functional outcomes with intensive lowering of blood pressure. (Funded by the National Health and Medical Research Council of Australia; INTERACT2 ClinicalTrials.gov number, NCT00716079.).
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.