Evidence map›Paper›PMID 39608800›Full record

ArticleStroke and vascular neurology2025

IRIS, a randomised, double-blind, placebo-controlled trial of interleukin-6 receptor inhibition undergoing endovascular treatment in acute anterior circulation ischaemic stroke: study rationale and design.

Xuehong Chu, Zhengfei Ma, Yifeng Liu, Jun Sun, Ning Wang, Chaoqun Li, Xiangyang Feng, Jianqiao Li, Benxiao Wang, Chen Zhou and 4 more

Abstract readClinical Trial Protocol
In one paragraph

Article in Stroke and vascular neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

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  5. Longitudinal plasma interleukin-6 and post-stroke cognitive outcomes: The Stroke-IMPaCT study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Xuehong ChuDepartment of Neurology, Xuanwu Hospital Capital Medical University, Beijing, China.
Zhengfei MaDepartment of Neurology, Suzhou Municipal Hospital of Anhui Province, Suzhou, Anhui, China.
Yifeng LiuDepartment of Neurology, Nanyang Central Hospital, Nanyang, Henan, China.
Jun SunDepartment of Neurology, Nanyang Central Hospital, Nanyang, Henan, China.
Ning WangDepartment of Neurology, Nanyang Central Hospital, Nanyang, Henan, China.
Chaoqun LiDepartment of Neurology, Xihua County People's Hospital, Zhoukou, Henan, China.
Xiangyang FengDepartment of Neurology, Xihua County People's Hospital, Zhoukou, Henan, China.
Jianqiao LiDepartment of Neurology, Sui Xi County Hospita, Anhui Province, China.
Benxiao WangAnhui Wanbei Coal Electricity Group General Hospital, Suzhou, China.
Chen ZhouBeijing Institute of Brain Disorders, Capital Medical University, Beijing, China.
Chuanhui LiDepartment of Neurology, Xuanwu Hospital Capital Medical University, Beijing, China.
Wenbo ZhaoDepartment of Neurology, Xuanwu Hospital Capital Medical University, Beijing, China.
Xunming JiDepartment of Neurology, Xuanwu Hospital Capital Medical University, Beijing, China.ORCID http://orcid.org/0000-0003-0293-2744
Chuanjie WuDepartment of Neurology, Xuanwu Hospital Capital Medical University, Beijing, China wuchuanjie@ccmu.edu.cn.ORCID http://orcid.org/0000-0002-0494-416X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleNeuroprotective strategies based on reperfusion therapy hold substantial promise for acute ischaemic stroke (AIS). Preclinical research indicates that tocilizumab, an interleukin-6 receptor antagonist, can attenuate ischaemia-reperfusion damage by exerting anti-inflammatory and neuroprotective effects.

aimTo determine tocilizumab's efficacy and safety when combined with endovascular thrombectomy (EVT) in patients with acute anterior circulation large vessel occlusion (LVO). SAMPLE SIZE ESTIMATES: To determine a 30% decrease in average infarct core volume comparing the intervention and historical control groups (mean increase of 18.7 mL (SD=9.7 mL) post-thrombectomy) via a two-sided test (alpha=0.05, power=80%), accounting for a 10% drop-out rate, we plan to recruit 108 participants. METHODS AND

designThis trial is designed as a randomised, multicentre, double-blind, placebo-controlled trial. Patients will be randomly and evenly allocated to the tocilizumab or placebo groups. STUDY OUTCOMES: The primary endpoint is the change in infarct core volume between baseline and 72 hours post-treatment. Secondary outcomes include the 90-day modified Rankin scale score (0-2, indicating functional independence). The key safety endpoints include 90-day mortality and symptomatic intracerebral haemorrhage within 72 hours after EVT. DISCUSSION: Administering tocilizumab within 24 hours of stroke as an adjunct to EVT may effectively reduce the infarct core volume for patients experiencing AIS with anterior circulation LVO, potentially improving functional outcomes in these patients.

Indexed as

Antibodies, Monoclonal, HumanizedEndovascular ProceduresIschemic StrokeReceptors, Interleukin-6ThrombectomyAgedDouble-Blind MethodFemaleFunctional StatusHumansMaleMulticenter Studies as TopicRandomized Controlled Trials as TopicRecovery of FunctionTime FactorsTreatment OutcomeAntibodies, Monoclonal, HumanizedIL6R protein, humanReceptors, Interleukin-6tocilizumabInterleukin-6Ischemic StrokeStroke

Identifiers

PMID39608800
PMCPMC12415643

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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.