Japanese Registry of Intracranial Artery Stenosis

Japanese Registry of Intracranial Artery Stenosis - ICAS-Japan Registry

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000054843

Enrollment

5000

Registered

2024-07-01

Start date

2024-07-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intracranial Artery Stenosis

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients diagnosed with ICAS (50% or more stenosis).

Exclusion criteria

Exclusion criteria: 1) Patients with ICAS caused by a non-atherosclerotic etiology such as moyamoya disease, arterial dissection, RCVS (reversible cerebral vasoconstriction syndrome), or vasculitis. 2) Patients diagnosed with intracranial artery occlusion.

Design outcomes

Primary

Measure	Time frame
Ischemic stroke during observation period	—

Secondary

Measure	Time frame
1) Cerebral infarction during observation period 2) TIA during observation period 3) Cerebral hemorrhage during observation period 4) Ischemic events during observation period 5) Hemorrhagic events during observation period 6) All cause death during observation period 7) Additional endovascular treatment or surgery during observation period 8) Asymptomatic cerebral infarction during observation period 9) Progression of stenosis during observation period	—

Measure

Time frame

1) Cerebral infarction during observation period 2) TIA during observation period 3) Cerebral hemorrhage during observation period 4) Ischemic events during observation period 5) Hemorrhagic events during observation period 6) All cause death during observation period 7) Additional endovascular treatment or surgery during observation period 8) Asymptomatic cerebral infarction during observation period 9) Progression of stenosis during observation period

—

Countries

Japan

Contacts

Public ContactKazutaka Uchida

Hyogo Medical University Department of Neurosurgery

kuchida@hyo-med.ac.jp0798-45-6458

Outcome results