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Arm vs. groin: which route works better for stenting a narrowed neck artery?

NCT ID NCT06557135

Disease control Sponsor: The First Affiliated Hospital with Nanjing Medical University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 25, 2026 · Last updated Sep 25, 2026

Summary

Researchers are comparing two ways to thread a stent into a narrowed carotid artery in the neck: going through an artery in the arm (brachial) or through an artery in the groin (femoral). Adults with significant carotid narrowing, with or without prior stroke symptoms, can join. The trial tracks how often the procedure succeeds, how long it takes, and whether serious complications occur within 90 days.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Carotid artery stenting, a procedure that threads a catheter through an artery in the arm or groin to place a stent in a narrowed neck artery
What this could lead to
If one access route proves safer or more reliable, doctors could adopt it as the preferred way to place carotid stents, potentially reducing complications for people with narrowed neck arteries.
What could go wrong
The trial may find no meaningful difference between the two routes, or one route may carry unexpected risks. Results from this single study may not apply to all patients or hospitals.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

235 people

The number who actually took part.

Started

Sep 2024

Finished

Aug 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Clinical diagnosis of stenosis at the origin of the carotid artery with indications for neuro-interventional treatment (symptomatic stenosis \>50%; asymptomatic stenosis \>70%) * Aged 18 or above * With palpable brachial and femoral arteries * The patient or his/her agent understands the purpose and needs of this study and signs the informed consent Exclusion Criteria: * Symptomatic stenosis or occlusion of multiple vessels at the same time * Intravascular intervention for multiple vessel lesions at the same time * Ischemic stroke within the past 2 weeks * Any active bleeding, severe anaemia, or coagulation disorder. At least one of the following laboratory tests must be met: haemoglobin \< 10g/dL, or platelet count \< 100,000 /μ L, or unadjusted INR \>1.5, or PT exceeds the upper limit of normal by 1 minute or heparin-induced thrombocytopenia * A large-area cerebral infarction stroke on the same side with sequelae may affect the judgment of the study endpoint * A history of cerebral hemorrhage in the past six months * Any condition that may interfere with digital subtraction angiography (DSA) or cause unsafe percutaneous arterial access Participating in other clinical trials, in the research stage or follow-up stage * Contraindications to cerebral angiography, such as allergy to iodine contrast agents and renal insufficiency * Unable to understand or sign the informed consent form * Severe functional damage to important organs, assessed by clinical physicians to have high surgical risks and intolerant of interventional surgery * Baseline modified Rankin scale greater than or equal to 2 * Expected survival is less than 6 months

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Conditions

The condition(s) this trial relates to.

carotid stenosis ischemic stroke

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Carotid artery stenosis without infarction (disorder) Ischemic stroke

Contacts and locations

Locations

  • The First Affiliated Hospital of Nanjing Medical University

    Nanjing, Jiangsu, 210000, China

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