Deep Cervical Lymphaticovenous Anastomosis Surgery for Moderate-to-Advanced Dementia Patients (NCT06978946) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Deep Cervical Lymphaticovenous Anastomosis Surgery for Moderate-to-Advanced Dementia Patients
China85 participantsStarted 2025-05-28
Plain-language summary
This clinical trial aims to evaluate the clinical efficacy and safety of Deep Cervical Lymphaticovenous Anastomosis (DLVA) in patients aged 50-80 with moderate to severe neurodegenerative dementia. Participants will undergo surgical treatment, followed by cognitive assessments, PET/MRI scans, lymph fluid/cerebrospinal fluid collection, and blood tests. Additionally, the study will perform an in-depth analysis of DLVA's therapeutic mechanisms using multimodal imaging and molecular biology experiments.
Who can participate
Age range
50 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Age between 50-80 years
. AD participants meet the diagnostic criteria for Alzheimer's disease established by the National Institute on Aging and the Alzheimer's Association (NIA-AA); FTD participants meet the diagnostic criteria defined by the International Consortium on FTD; DLB participants meet the 2017 diagnostic criteria of the DLB Consortium; PDD participants meet the 2007 diagnostic criteria of the Movement Disorder Society or the 2011 Chinese diagnostic guidelines for PDD;
. Mini-Mental State Examination (MMSE)\<than 21, Montreal Cognitive Assessment (MoCA) score\<17, and Clinical Dementia Rating (CDR) score ≥2;
. Diagnosed by clinicians as having moderate to severe disease;
. On stable medication regimen for ≥1 month
. Signed informed consent and demonstrated good compliance
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Severity of dementia
Timeframe: preoperative day 3，postoperative day 3、month 3、month 6、month12
. Dementia caused by other conditions, including: vascular dementia; central nervous system infections due to HIV, syphilis, etc.; Creutzfeldt-Jakob disease; Huntington's disease; traumatic brain injury-related dementia; dementia due to toxic or alcohol-related factors; major systemic diseases such as hepatic or pulmonary encephalopathy; subdural hematoma; endocrine disorders such as thyroid or parathyroid disease; vitamin deficiency; or any other cause of dementia.
. Presence of severe or unstable medical conditions, including but not limited to cardiovascular, hepatic, renal, gastrointestinal, respiratory, endocrine, neurological (excluding cognitive impairment), psychiatric, immunological, or hematological disorders, or any other condition deemed by the investigator to potentially interfere with study results; or life expectancy \< 24 months.
. Current diagnosis of any primary psychiatric disorder other than cognitive impairment. If, in the investigator's opinion, the psychiatric condition or symptoms may interfere with cognitive assessment or the subject's ability to complete the study, exclusion is required. Subjects with a history of schizophrenia or other chronic psychotic disorders should also be excluded.
. Contraindications to deep cervical LVA surgery, including left vagus nerve injury, severe infection at the surgical site, significant dysfunction of the heart, lungs, liver, kidneys, or other organ systems, a history of head and neck radiation therapy or surgery, preoperative anesthetic evaluation of ASA grade III or above, or inability to tolerate prolonged surgery.