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Wrist or groin? major study seeks best route for brain scans

NCT ID NCT07544043

Knowledge-focused Sponsor: Gansu Provincial Maternal and Child Health Care Hospital 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two ways to perform brain angiography: accessing an artery through the wrist (transradial) versus the groin (transfemoral). Over 2,400 people needing this imaging test will be randomly assigned to one method. Researchers will measure success rates, complications, patient comfort, and costs to determine which approach is better.

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

About 2,473 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

May 2027

An estimate. End dates often move.

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: 1. Age \> 18 years; 2. Patients requiring full cerebrovascular angiography; 3. Objective evidence indicates the patient is suitable for transfemoral or transradial cerebrovascular angiography, with upper limb vascular ultrasound 4.showing a radial artery internal diameter ≥ 1.5 mm; 5.Modified Rankin Scale (mRS) score ≤ 2 points; 6.Signed informed consent form. Exclusion Criteria: 1. Positive right Allen's test/Barbeau test; femoral artery occlusion (for the TFA group); 2. Local infection or trauma at the puncture site; 3. Coagulation abnormalities: INR \> 1.5 or platelet count \< 50 × 10⁹/L; 4. Presence of access vessel disease or anatomical variation deemed potentially hazardous to the subject, such as aortic arch interruption, subclavian artery occlusion, or aortic dissection; 5. Pregnancy; 6. Planned or recent (within the past 2 weeks) major surgery or severe trauma; 7. Expected survival less than 5 years; 8. Severe cardiac, hepatic, renal, or other organ dysfunction; 9. Contraindication to contrast agents used in cerebrovascular angiography; 10. Inability to comply with follow-up.

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Conditions

The condition(s) this trial relates to.

cerebrovascular disorder

As listed by the trial registrant

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

Cerebrovascular disease

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

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More trials for these conditions

Other studies related to the condition(s) this trial covers.