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A Study on the Mechanism of Electroacupuncture Intervention in Postherpetic Neuralgia: Insights from the Pain matrix based on fMRI

A Study on the Mechanism of Electroacupuncture Intervention in Postherpetic Neuralgia: Insights from the Pain matrix based on fMRI

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ITMCTR
Registry ID
ITMCTR2025001084
Enrollment
Unknown
Registered
2025-05-31
Start date
2025-06-06
Completion date
Unknown
Last updated
2025-06-24

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

Conditions

Postherpetic Neuralgia

Interventions

sham EA group:sham electroacupuncture

Sponsors

Beijing Hospital of Traditional Chinese Medicine Capital Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1)Age = 50 years; 2)Meeting the diagnostic criteria for postherpetic neuralgia (PHN) as defined in the 2016 Chinese Expert Consensus on the Diagnosis and Treatment of Postherpetic Neuralgia; 3)Average pain intensity within the screening week ranging from 3 to 6 on the Visual Analogue Scale (VAS) (3 = VAS); 4)Right-handed; 5)Able to cooperate with a 30-minute multimodal magnetic resonance imaging (MRI) examination; 6)Must discontinue analgesic medications including but not limited to gabapentin pregabalin and ibuprofen at least one day before MRI scanning; 7)Signed informed consent form and voluntarily agreed to participate in the study.

Exclusion criteria

Exclusion criteria: 1)PHN patients who have previously undergone neurolytic blockade or neurosurgical treatment; 2)Severe pain or neurological disorders unrelated to PHN or skin lesions that could cause pain other than PHN; 3)Patients with severe emotional disorders requiring tricyclic antidepressants or those with psychiatric or intellectual impairments preventing questionnaire completion; 4)Patients with severe primary diseases of the cardiovascular cerebrovascular hepatic renal or hematopoietic systems as well as malignancies or other organic diseases; 5)Pregnant or lactating women or those planning to conceive within the next six months; 6)Patients who have previously participated in other clinical trials involving electroacupuncture treatment; 7)PHN affecting the perineal or brachial plexus regions or special types of herpes zoster including ophthalmic auricular abortive zoster sine herpete herpes zoster meningitis or encephalitis visceral autonomic nerve involvement disseminated herpes zoster or other forms such as bullous hemorrhagic or necrotic herpes zoster; 8)Patients unable to undergo MRI due to claustrophobia pacemakers metallic implants intracranial vascular stents or other contraindications.

Design outcomes

Primary

MeasureTime frame
VAS;

Secondary

MeasureTime frame
hospital anxiety and depression scale;BPI-SF;Time to relieving of pain;Interleukin-6 (IL-6);McGill Pain Questionnaire;Interleukin-4 (IL-4);Intensity of acute zoster-associated pain;Tumor Necrosis factor -a (TNF-a);Serum T lymphocyte subset;Substance P(SP);36- item short form health survey;Average daily sleep interference score;

Countries

China

Contacts

Public ContactTianli Lyu

Beijing Hospital of Traditional Chinese Medicine Capital Medical University

ltl.1990@163.com15116967005

Outcome results

None listed

Source: ITMCTR (via WHO ICTRP) · Data processed: Feb 4, 2026