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New Light-Based scan could spot hidden leg artery disease

NCT ID NCT06579326

Diagnosis Sponsor: Sun Yat-sen University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 is testing a new imaging technique called photoacoustic tomography (PACT) to see blood vessels and oxygen levels in the feet without using dyes or needles. The goal is to help doctors diagnose lower extremity artery disease (LEAD) more accurately and earlier. Researchers will scan 200 people, including those with LEAD and healthy volunteers, to see if PACT adds useful information beyond current tests.

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.

Participants

About 200 people

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

Started

Nov 2024

Expected to finish

Dec 2028

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.

Who is studied

The LEAD patients are diagnosed as LEAD by computed tomography angiography or ultrasound.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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. Inclusion of the case group 1) LEAD patients; 2) Patients voluntarily take part in the study and write informed consent. 2. Inclusion of the control group 1) Patients without LEAD by ultrasound and clinical diagnosis; 2) Patients voluntarily take part in the study and write informed consent. Exclusion Criteria: 1. age \<18 years; 2. pregnant women, nursing mothers and pregnant women in preparation; 3. with laser operation contraindication (for example, received a photodynamic therapy in the last month); 4. with metal implants in lower legs or feet; 5. with a history of mental illnesses or abuse of drug and alcohol; 7\) with blood phobia or pathological hypotension; 8) with cerebral hemorrhage or peripheral vascular bleeding risk, or history of stroke; 9) with wounds in lower legs or feet; 10) unable or uncooperative with the experimenter.

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Conditions

The condition(s) this trial relates to.

peripheral arterial disease

As listed by the trial registrant

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

Lower extremity Photoacoustic

How to take part

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

  1. The places running it

    1 site. The list below names each one and where it is.

  2. 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 ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • the Third Affiliated Hospital of Sun Yat-sen University

    RECRUITING

    Guangzhou, Guangdong, 510630, China

More trials for these conditions

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