Endovascular Treatment of Chronic Intracranial Artery Occlusion
Endovascular Treatment of Chronic Intracranial Artery Occlusion: A Multicenter Randomized Controlled Trial
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Bo Hu, Doctor
- Telefonnummer: +86 13707114863
- E-Mail: hubo@mail.hust.edu.cn
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Age ≥18 years
- Occlusion of the unilateral middle cerebral artery, basilar artery, intracranial internal carotid artery, or vertebral artery, as confirmed by computed tomography angiography (CTA), magnetic resonance angiography (MRA), or digital subtraction angiography (DSA)
- Modified Rankin Scale (mRS) score of 0-2
- Presence of symptoms related to the occluded vessel, as determined by the physician, with the most recent symptom onset occurring more than 4 weeks and within 6 months prior to enrolment
- The subject or their legally authorised representative has provided written informed consent for the study
Exclusion Criteria:
- Evidence of hemorrhage on CT or MRI
- Large hemispheric infarction involving >50% of the middle cerebral artery territory on CT or MRI
- Severe pre-stroke disability (modified Rankin Scale score ≥2) or life expectancy <12 months
- Major comorbidities that may interfere with outcome assessment and follow-up (e.g., severe heart failure, renal failure, etc.)
- Uncontrolled seizure at the time of stroke onset
- Baseline platelet count <50,000/μL
- Severe, persistent hypertension that remains uncontrolled despite active management (systolic blood pressure >220 mmHg or diastolic blood pressure >120 mmHg)
- Known inherited or acquired bleeding diathesis, coagulation factor deficiency, or recent oral anticoagulant therapy with an international normalized ratio (INR) >3
- Suspected septic emboli or suspected bacterial endocarditis
- Known allergy to iodine, heparin, or anaesthetics, or other definite contraindications to endovascular procedures
- Pregnant women
- Other severe, progressive, or terminal diseases (as judged by the investigator), or life expectancy <24 months
- Prior attempted endovascular recanalization therapy before randomization
- Current participation in other studies involving investigational drugs or devices
- Evidence of intracranial tumour on CT or MRI (except meningioma)
- Excessive tortuosity of cervical vessels on CTA/MRA that may preclude endovascular therapy
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
Sonstiges: control group
Standard pharmacological treatment
|
Standard pharmacological treatment: dual antiplatelet (aspirin 100 mg + clopidogrel 75 mg daily) for first 90 days, then single antiplatelet; high-intensity statin (atorvastatin 40-80 mg or rosuvastatin 20-40 mg daily) targeting LDL-C <1.8 mmol/L; strict BP control (<140/90 mmHg, or <130/80 mmHg in diabetics) and glycemic control (HbA1c <7.0%); uniformly applied across centers with pill-count adherence monitoring.
|
|
Experimental: Test group
Endovascular treatment combined with standard pharmacological treatment
|
Endovascular recanalization therapy for chronic atherosclerotic intracranial artery occlusion, including balloon angioplasty and/or stent implantation (e.g., self-expanding or drug-eluting stents) targeting the occluded unilateral middle cerebral artery, basilar artery, intracranial internal carotid artery, or vertebral artery.
The procedure is performed under local or general anesthesia via femoral or radial arterial access, with peri-procedural dual antiplatelet therapy (e.g., aspirin plus clopidogrel) management according to standard institutional protocols.
|
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Stroke or death within 30 days after enrollment, or any ischemic stroke of the qualifying artery after 30 days through 12 months after enrollment
Zeitfenster: Within 30 days post-enrollment; and 30 days to 12 months post-enrollment
|
A stroke is defined as rapid loss of neurological function due to ischaemia or a haemorrhage.
CT or MRI scanning is necessary to identify the stroke.
|
Within 30 days post-enrollment; and 30 days to 12 months post-enrollment
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Disabling stroke within 12 months post-procedure
Zeitfenster: 12 months post-procedure
|
Stroke is diagnosed by an independent outcome committee which is composed with experienced neurologists.
CT or MR scans will be collected as adjunct evidence for outcome classification of ischemic or hemorrhagic stroke.
|
12 months post-procedure
|
|
Successful reperfusion rate
Zeitfenster: End of the procedure
|
End of the procedure
|
|
|
Any stroke within 12 months post-procedure
Zeitfenster: 12 months post-procedure
|
Stroke is diagnosed by an independent outcome committee which is composed with experienced neurologists.
Additional key neuro-images (CT or MR scans) will be collected as adjunct evidence for outcome classification of ischemic or hemorrhagic stroke.
|
12 months post-procedure
|
|
Residual stenosis of target vessel at 12 months
Zeitfenster: 12 months post-procedure
|
The degree of target artery stenosis based on following-up neurovascular imaging
|
12 months post-procedure
|
|
Fatal stroke within 12 months post-procedure
Zeitfenster: 12 months post-procedure
|
A cerebrovascular event that directly causes death or leads to irreversible brain damage resulting in imminent death based on CT or MR scans
|
12 months post-procedure
|
|
NIHSS score at 12 months
Zeitfenster: 12 months post-procedure
|
The National Institutes of Health Stroke Scale (NIHSS) Scores range from a minimum of 0 (normal) to a maximum of 42 (profound impairment).
Higher scores indicate a worse outcome, as they correspond to more severe stroke symptoms and poorer long-term prognosis.
|
12 months post-procedure
|
|
mRS score at 12 months
Zeitfenster: 12 months post-procedure
|
Modified Rankin Scale:1.
Total asymptomatic score 0 2, despite symptoms, but no obvious dysfunction, can complete all daily work and life score 1 Mildly disabled, unable to complete all pre-illness activities, but able to take care of daily tasks without assistance score 2 3, moderate disability, need some help, but can walk independently score 3 4, moderate to severe disability, can not walk independently, daily life needs help from others score 4 5, severe disability, bed rest, urinary incontinence, daily life completely dependent on others score 5 6.
Death score 6
|
12 months post-procedure
|
|
Any death within 12 months post-procedure
Zeitfenster: 12 months post-procedure
|
12 months post-procedure
|
|
|
Any stroke or death within 30 days post-randomization
Zeitfenster: Within 30 days post-randomization
|
Within 30 days post-randomization
|
|
|
Procedure-related complications
Zeitfenster: Perioperative period / Within 30 days post-procedure
|
Perioperative period / Within 30 days post-procedure
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- ETP-C
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .