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The effect of transcutaneous auricular vagus nerve stimulation on cognitive function in elderly patients with neuropathic pain

The effect of transcutaneous auricular vagus nerve stimulation on cognitive function in elderly patients with neuropathic pain

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600127201
Enrollment
Unknown
Registered
2026-06-26
Start date
2026-07-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cognitive impairment

Interventions

Trial group:Transcutaneous Auricular Vagus Nerve Stimulation plus Nerve Block plus Pharmacotherapy
Control group:Transcutaneous Auricular Vagus Nerve Sham Stimulation Combined with Nerve Block and Pharmacotherapy

Sponsors

The Affiliated Hospital of Xuzhou Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
60 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Elderly: Age >= 60 years; 2. Neuropathic pain: Diagnosis of neuropathic pain according to the current International Association for the Study of Pain (IASP) criteria, with an ID Pain scale score >= 2 points; 3. Chronic pain: Pain in one or more locations (NRS >= 4 points) lasting > 1 month or recurring > 3 months; 4. Cognitive impairment without significant impairment in daily activities: Mini-Mental State Examination (MMSE) score <= 26 points & Functional Activities Questionnaire (FAQ) score < 9 points.

Exclusion criteria

Exclusion criteria: 1. Taking psychotropic drugs or medications that significantly impair cognitive function within the past one month; 2. History of allergy to analgesics or history of analgesic abuse and addiction; 3. Presence of organic diseases affecting cerebral function (e.g., Parkinson’s disease, epilepsy) or a history of cerebral infarction within the past year; 4. History of craniotomy; 5. Accompanied by cancer-related pain; 6. Severe cardiovascular disease (left ventricular ejection fraction, LVEF < 30%); 7. Severe hepatic dysfunction (Child-Pugh Class C); 8. Severe renal insufficiency (preoperative dialysis); 9. Severe anemia or coagulation disorders; 10. Acute infection or damage on the skin of the stimulated area; 11. Having metal or electronic implants in the body; 12. BMI less than 18 kg/m^2 or greater than 30 kg/m^2; 13. The patient requests to withdraw from the trial; 14. The patient is unable to understand or cooperate to complete the relevant scales; 15. The patient participates in other clinical trials concurrently.

Design outcomes

Primary

MeasureTime frame
Mini-Mental State Examination Score at 12 Weeks Post-Intervention;

Secondary

MeasureTime frame
Mini-Mental State Examination Score at Baseline and 1, 4, and 8 Weeks Post-Intervention;Numerical Rating Scale Score at Baseline and 1, 4, 8, and 12 Weeks Post-Intervention;Generalized Anxiety Disorder Scale Score at Baseline and 1, 4, 8, and 12 Weeks Post-Intervention;Patient Health Questionnaire-9 Score at Baseline and 1, 4, 8, and 12 Weeks Post-Intervention;Pittsburgh Sleep Quality Index Score at Baseline and 1, 4, 8, and 12 Weeks Post-Intervention;Incidence of Adverse Events During Intervention Period (e.g., pain at stimulation site, skin erythema, burning sensation, pruritus, nausea, etc.);

Countries

China

Contacts

Public ContactShen Wen

The Affiliated Hospital of Xuzhou Medical University

Shenwen670201@163.com+86 13815311266

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jul 3, 2026