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Neck surgery may help clear brain waste in Alzheimer's – new trial underway

NCT ID NCT07328386

Disease control Sponsor: Hong Joonpio 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests a neck surgery (lymphaticovenous anastomosis) to improve drainage of fluid from the brain in people with Alzheimer's disease. About 114 participants will either receive surgery plus standard medication or medication alone. Researchers will track changes in memory and thinking over two years to see if the surgery slows cognitive decline.

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 114 people

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

Started

Feb 2025

Expected to finish

Dec 2026

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

19 to 100 years

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: * Patients aged 19 years or older who are diagnosed with intracranial lymphatic circulation disorder based on neurological evaluation. * Global Deterioration Scale (GDS) score between 3 and 5 at screening. * Diagnosis of Alzheimer's disease confirmed by amyloid PET-CT or CSF amyloid testing, showing amyloid accumulation associated with lymphatic circulation disorder. * Able to provide written informed consent to participate in the study voluntarily. Exclusion Criteria: * Unable to undergo follow-up evaluation for at least 12 months after surgery. * Diagnosed with vascular dementia. * Presence of structural brain disease other than intracranial lymphatic circulation disorder. * Known hypersensitivity to indocyanine green (ICG). * Uncontrolled systemic medical conditions such as severe cardiopulmonary, renal, hepatic, or endocrine disorders. * History of previous neck surgery. * Refusal to participate or failure to provide informed consent. * Determined by the principal investigator to be unsuitable for participation due to any other clinical reason.

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Conditions

The condition(s) this trial relates to.

Alzheimer disease dementia

As listed by the trial registrant

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

Alzheimer's disease Intracranial lymphatic circulation disorder

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

  • Asan Medical Center

    RECRUITING

    Seoul, South Korea

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