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Deep Cervical Lymphovenous Anastomosis for Severe Alzheimer's Disease

NCT07669272 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 59

Last updated 2026-06-25

No results posted yet for this study

Summary

Alzheimer's disease (AD) is a severe neurodegenerative disease with heavy social burden. Current drugs cannot reverse disease progression. Brain glymphatic system and meningeal lymphatic dysfunction lead to impaired clearance of Aβ and Tau protein, which is an important pathogenesis of AD. Deep cervical lymphovenous anastomosis (DCLVA) can improve intracranial lymphatic drainage, promote the clearance of toxic proteins, and improve neurological function. This is a single-arm, prospective, self-controlled study to enroll 59 patients with severe AD (MMSE \< 10). All patients receive bilateral DCLVA plus routine medication. The primary endpoint is change of CDR-SB score at 12 months post-operation. Secondary endpoints include MMSE, ZBI scores and Aβ PET-CT Centiloid value. This study aims to verify the efficacy and safety of DCLVA for severe AD.

Conditions

  • Alzheimer s Disease

Interventions

PROCEDURE

Deep Cervical Lymphovenous Anastomosis

A one-time microsurgical procedure performed under general anesthesia. Indocyanine green (ICG) is injected for intraoperative lymphatic vessel tracing under a fluorescent surgical microscope. Lymphatic vessels or lymphatic flaps are anastomosed to cervical veins via end-to-side or end-to-end technique to improve intracranial lymphatic drainage. No additional surgical interventions are applied.

OTHER

Routine Treatment

Stable administration of standard drugs for Alzheimer's disease, including cholinesterase inhibitors and/or NMDA receptor antagonists, following clinical guidelines. Participants continue their original medication regimen throughout the whole study period without dose adjustment or drug switching.

Sponsors & Collaborators

  • Southwest Hospital, China

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
50 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-10-01
Primary Completion
2028-09-30
Completion
2029-09-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07669272 on ClinicalTrials.gov