NCT03417063

Brief Summary

Stroke has become the leading cause of death in China. It has been shown that intracranial artery stenosis (ICAS) plays a key role in Chinese stroke patients. Although most of stenotic diseases in intracranial arteries are atherosclerotic, a substantial number of other vascular diseases, such as dissection, arteritis, moyamoya disease, and reversible cerebral vasoconstriction syndrome (RCVS), can also lead to intracranial artery luminal narrowing. It is challenging to differentiate the etiologies of ICAS relying on measuring luminal narrowing by angiographical approaches. In addition, the progression of intracranial atherosclerotic disease (ICAD) has been demonstrated to be highly associated with the risk of ischemic cerebrovascular events. However, the influence factors for ICAD progression remains unclear. High-resolution magnetic resonance imaging (HR-MRI) has been widely used to assess ICAS diseases. The different etiologies of ICAS are differentiable by MR-MRI according to the features of location, shape, signal pattern, remodeling, and contrast enhancement. Investigators have proved that HR-MRI is a reproducible technique that may be reliably utilized to monitor the changes of ICAD during natural follow-up or medical treatment. The ICASMAP (Intracranial Artery Stenosis MR Imaging: Aetiology and Progression) is a prospective, cross-sectional, observational, and multicenter study. The objectives of ICASMAP are to determine: 1) the spectrum of etiology of ICAS in stroke patients; and 2) the influence factors for progression of ICAD. A total of 300 patients with symptomatic stenotic disease in intracranial arteries (stenosis range: 30%-99%) will be recruited within two weeks after symptom onset from 18 different hospitals across Beijing-Tianjin-Hebei region in China within 1 year. All the patients will undergo HR-MRI for intracranial arteries at baseline, one-year, and two-years. The clinical risk factors will be collected and blood draw will be conducted. The ICASMAP study may help to improve the precise diagnosis and intervention of ICAS and stroke prevention.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2017

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

October 14, 2017

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

January 24, 2018

Completed
7 days until next milestone

First Posted

Study publicly available on registry

January 31, 2018

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 25, 2021

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

March 25, 2022

Completed
Last Updated

January 31, 2018

Status Verified

January 1, 2018

Enrollment Period

3.4 years

First QC Date

January 24, 2018

Last Update Submit

January 24, 2018

Conditions

Ischemic StrokeTransient Ischemic AttackIntracranial Artery Stenosis

Keywords

Intracranial arteryAtherosclerosisIntracranial artery stenosisHigh-Resolution Magnetic Resonance

Outcome Measures

Primary Outcomes (1)

  • Progression of plaque burden

    Maximum wall thickness

    24 months

Secondary Outcomes (3)

  • Progression of luminal stenosis

    24 months

  • Progression of plaque components

    24 months

  • cerebrovascular events

    24 months

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

In this study, we plan to recruit patients with recent transient ischemic attack or ischemic stoke within two weeks after symptom onset and intracranial artery stenosis (30%-99%) at least in intracranial internal carotid artery,basilar artery, M1 segment of middle cerebral artery, A1 segment of anterior cerebral artery, or P1 segment of posterior cerebral artery determined by computed tomography angiography or magnetic resonance angiography. The patients will be recruited from 18 hospitals in Beijing-Tianjin-Hebei area of China.

You may qualify if:

  • Patients with recent transient ischemic attack or ischemic stoke within two weeks after symptom onset and intracranial artery stenosis (30%-99%) at least in intracranial internal carotid artery,basilar artery, M1 segment of middle cerebral artery , A1 segment of anterior cerebral artery, or P1 segment of posterior cerebral artery determined by computed tomography angiography or magnetic resonance (MR) angiography.

You may not qualify if:

  • Patients with specific carotid artery atherosclerotic plaques
  • Patients with evidence of may causing cardiac thrombosis disease
  • Patients with claustrophobia
  • Patients with contraindications to MR imaging
  • Patients with heart or respiratory failure
  • Patients with renal insufficiency (serum creatinine \>133umol/L)
  • Patients with serious disturbance of consciousness
  • Patients with brain tumors
  • Patients with cerebral hemorrhage
  • Pregnant woman or plan to pregnant within recent 2 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University

Beijing, 100084, China

RECRUITING

Related Publications (8)

  • Wang Y, Zhao X, Liu L, Soo YO, Pu Y, Pan Y, Wang Y, Zou X, Leung TW, Cai Y, Bai Q, Wu Y, Wang C, Pan X, Luo B, Wong KS; CICAS Study Group. Prevalence and outcomes of symptomatic intracranial large artery stenoses and occlusions in China: the Chinese Intracranial Atherosclerosis (CICAS) Study. Stroke. 2014 Mar;45(3):663-9. doi: 10.1161/STROKEAHA.113.003508. Epub 2014 Jan 30.

    PMID: 24481975BACKGROUND

  • Ahn SH, Lee J, Kim YJ, Kwon SU, Lee D, Jung SC, Kang DW, Kim JS. Isolated MCA disease in patients without significant atherosclerotic risk factors: a high-resolution magnetic resonance imaging study. Stroke. 2015 Mar;46(3):697-703. doi: 10.1161/STROKEAHA.114.008181. Epub 2015 Jan 27.

    PMID: 25628303BACKGROUND

  • Hart RG, Diener HC, Coutts SB, Easton JD, Granger CB, O'Donnell MJ, Sacco RL, Connolly SJ; Cryptogenic Stroke/ESUS International Working Group. Embolic strokes of undetermined source: the case for a new clinical construct. Lancet Neurol. 2014 Apr;13(4):429-38. doi: 10.1016/S1474-4422(13)70310-7.

    PMID: 24646875BACKGROUND

  • Wang Y, Xu J, Zhao X, Wang D, Wang C, Liu L, Wang A, Meng X, Li H, Wang Y. Association of hypertension with stroke recurrence depends on ischemic stroke subtype. Stroke. 2013 May;44(5):1232-7. doi: 10.1161/STROKEAHA.111.000302. Epub 2013 Feb 26.

    PMID: 23444308BACKGROUND

  • Gorelick PB, Wong KS, Bae HJ, Pandey DK. Large artery intracranial occlusive disease: a large worldwide burden but a relatively neglected frontier. Stroke. 2008 Aug;39(8):2396-9. doi: 10.1161/STROKEAHA.107.505776. Epub 2008 Jun 5.

    PMID: 18535283BACKGROUND

  • Choi YJ, Jung SC, Lee DH. Vessel Wall Imaging of the Intracranial and Cervical Carotid Arteries. J Stroke. 2015 Sep;17(3):238-55. doi: 10.5853/jos.2015.17.3.238. Epub 2015 Sep 30.

    PMID: 26437991BACKGROUND

  • Mossa-Basha M, Hwang WD, De Havenon A, Hippe D, Balu N, Becker KJ, Tirschwell DT, Hatsukami T, Anzai Y, Yuan C. Multicontrast high-resolution vessel wall magnetic resonance imaging and its value in differentiating intracranial vasculopathic processes. Stroke. 2015 Jun;46(6):1567-73. doi: 10.1161/STROKEAHA.115.009037. Epub 2015 May 7.

    PMID: 25953365BACKGROUND

  • Han Y, Zhang R, Yang D, Li D, Han H, Qiao H, Chen S, Wang Y, Yu M, Hong Y, Wang Z, Zhao X, Liu G. Risk Factors for Asymptomatic and Symptomatic Intracranial Atherosclerosis Determined by Magnetic Resonance Vessel Wall Imaging in Chinese Population: A Case-Control Study. Ther Clin Risk Manag. 2022 Jan 12;18:61-70. doi: 10.2147/TCRM.S335401. eCollection 2022.

    PMID: 35058694DERIVED

MeSH Terms

Conditions

Ischemic StrokeIschemic Attack, TransientAtherosclerosis

Condition Hierarchy (Ancestors)

StrokeCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesBrain IschemiaArteriosclerosisArterial Occlusive Diseases

Study Officials

  • Xihai Zhao, MD, PhD

    Tsinghua University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Dongye Li, MD

CONTACT

1561153321dongyeli1988@126.com

Yongjun Han, MD

CONTACT

15116962341lalyn0322@hotmail.com

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

January 24, 2018

First Posted

January 31, 2018

Study Start

October 14, 2017

Primary Completion

March 25, 2021

Study Completion

March 25, 2022

Last Updated

January 31, 2018

Record last verified: 2018-01

Locations

CN(1)