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Intracranial AtherosclerosisPhase 3NCT02689037

Angioplasty and Stenting for Patients With Symptomatic Intracranial Atherosclerosis

A Phase 3 study testing Percutaneous transluminal angioplasty and stenting and Aspirin plus clopidogrel in people with Intracranial Atherosclerosis, run by The 476th Hospital of People's Liberation Army.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Background: Effectiveness of Percutaneous transluminal angioplasty and stenting (PTAS) on prevention of events of stroke and death in patients with symptomatic intracranial atherosclerosis (ICAS) is controversial. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Intracranial Atherosclerosis
What is being tested?
Percutaneous transluminal angioplasty and stenting and Aspirin plus clopidogrel
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
394 participants
Where
No sites listed yet
Study dates
Apr 2016to Dec 2019
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients aged from 18 to 70 years.
  • Complaints of a Symptomatic ICAS: a history of recurrent transient ischemic attacks or an ischemic stroke within 1 year owing to a 70%-99% stenosis in an internal carotid artery, middle cerebral artery, vertebral artery, or basilar artery.
  • A length ≤ 15mm of a stenosis in the target vessel and a vessel size >2.5mm.
  • Hypoperfusion in the territory of the target vessels, which is determined by CT or MRI in 14 days before stenting.
  • CT or MRI scans show no massive cerebral infarction (beyond half of the territory of middle cerebral artery (MCA)), intracranial hemorrhage, epidural or sub-dural hemorrhage, and intracranial brain tumor.
  • Patients who understand the purpose of the study and have provided informed consent.

Who cannot join

  • Not able to receive general anesthesia.
  • Not able to receive angiographic assessment.
  • A stenosis >50% in an extracranial carotid or vertebral artery on the ipsilateral side.
  • Infarctions due to the perforators occlusion (determined by MRI scan), which is defined as basal ganglia or brainstem/thalamus infarction related with middle cerebral artery or basilar artery stenosis.
  • A high risk (leading to a stroke or death) to deliver the stent to the lesion.
  • A previous stent or angioplasty in the target lesion.
Show all 16Show fewer
  • Progressive neurological signs within 24 hours before enrolment
  • Any haemorrhagic infarct within 14 days before enrolment
  • The presence of a cardiac source of embolus
  • Thrombolytic therapy within 24 hours before enrollment
  • Presence of intraluminal thrombus proximal to or at the target lesion
  • Myocardial infarction within previous 30 days
  • Non-atherosclerotic lesions: arterial dissection, moya-moya disease; vasculitic disease; herpes zoster, varicella zoster or other viral vasculopathy; neurosyphilis; any other intracranial infection; any intracranial stenosis associated with cerebrospinal fluid pleocytosis; radiation-induced vasculopathy; fibromuscular dysplasia; sickle cell disease; neurofibromatosis; benign angiopathy of central nervous system; postpartum angiopathy; suspected vasospastic process, and suspected recanalized embolus.
  • Known contraindications for aspirin and clopidogrel treatment.
  • An modified Rankin scale≥3.
  • With a childbearing potential or a positive pregnancy test in 1 week before enrolment.

Trial locations and contacts

No sites are listed yet.

Xiao-Ping Cui, MD contact

0591-22859529

xiaopingcuidr@126.com

About this study

Official title: Angioplasty and Stenting for Patients With Symptomatic Intracranial Atherosclerosis: Study Protocol of a Randomized Controlled Trial

Background: Effectiveness of Percutaneous transluminal angioplasty and stenting (PTAS) on prevention of events of stroke and death in patients with symptomatic intracranial atherosclerosis (ICAS) is controversial.

Aim: to determine whether PTAS plus medical treatment (MT) are superior to MT alone in preventing events of stroke and death in patients with symptomatic ICAS.

Methods: The investigators will carry out a randomized controlled trial in 3 hospitals in China. A total of 198 patients with ICAS will be randomized into 2 groups: PTAS+MT and MT group. All patients will receive aspirin (100 mg daily) and clopidogrel (75 mg daily) immediately after randomization, and patients in PTAS+MT group will receive surgery within 5 days after randomization. The patients will be followed up for 1 year after randomization and assessed for events of stroke and death at 30 days and 1 year after randomization, the incidence of recurrent ischaemic stroke in the stenting-involved vascular territory at 30 days and 1 year after randomization, incidence of in-stent restenosis at 1 year after randomization,etc.

Being tested
Percutaneous transluminal angioplasty and stenting, Aspirin plus clopidogrel
Medical subject headings
Intracranial Arteriosclerosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Percutaneous transluminal angioplasty and stentingProcedure or surgery

    Also called PTAS

    Surgeons will plant stents after vascular angioplasty in target ICAS vessels within 5 days after randomization.

  • Aspirin plus clopidogrelDrug

    Also called Aspirin+clopidogrel

    aspirin 100mg daily and clopidogrel 75mg daily for 90 days

Study groups in NCT02689037
Study groupRoleWhat they receive
stenting+medical treatmentExperimentalPatients in PTAS+MT group will receive Percutaneous transluminal angioplasty and stenting and medical treatment (aspirin 100mg daily and clopidogrel 75mg daily)
Receives: Procedure: Percutaneous transluminal angioplasty and stenting; Drug: Aspirin plus clopidogrel
Aspirin plus clopidogrelActive comparatorPatients in aspirin plus clopidogrel group will receive aspirin 100mg daily and clopidogrel 75mg daily for 90 days.
Receives: Drug: Aspirin plus clopidogrel

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of patients with events of stroke or death

    Measured: at 30 days after randomization

Secondary outcomes (3)
  1. the incidence of recurrent ischaemic stroke in the stenting-involved vascular territory

    Measured: 30 days and 1 year after randomization

  2. neurological functional outcome by the Chinese version of National Institutes of Health Stroke Scale (C-NIHSS)

    Measured: 30 days and 1 year after randomization

  3. Proportion of patients with adverse events

    Measured: 30 days and 1 year after randomization

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Feb 2016 (estimated)
  2. Study startApr 2016
  3. Primary completionDec 2018 (estimated)
  4. Study completionDec 2019 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
394 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02689037
Sponsor's protocol ID
12MA100
Status last verified
Apr 2016
First submitted
17 Feb 2016
Last updated
5 Apr 2016
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided

Publications

  • Cui XP, Lin M, Mu JS, Ye JX, He WQ, Fu ML, Li H, Fang JY, Shen FF, Lin H. Angioplasty and stenting for patients with symptomatic intracranial atherosclerosis: study protocol of a randomised controlled trial. BMJ Open. 2016 Nov 15;6(11):e012175. doi: 10.1136/bmjopen-2016-012175.

    PubMed 27852711

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Percutaneous transluminal angioplasty and stenting and Aspirin plus clopidogrel in people with Intracranial Atherosclerosis, run by The 476th Hospital of People's Liberation Army.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 5 Apr 2016. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Xiao-Ping Cui, MD (0591-22859529, xiaopingcuidr@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of patients with events of stroke or death (time frame: at 30 days after randomization). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02689037, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Apr 2016.

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