Skip to content

A Study on the Effect of Chronic Pain Duration on Cognitive Impairment

A Study on the Effect of Chronic Pain Duration on Cognitive Impairment

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600118432
Enrollment
Unknown
Registered
2026-02-05
Start date
2026-02-05
Completion date
Unknown
Last updated
2026-02-09

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

Conditions

Herpes Zoster, Postherpetic Neuralgia

Interventions

Cross-sectional study group (pain duration 12 months):None
Cross-sectional study group (healthy control):None
Longitudinal study group:None

Sponsors

Renji Hospital, Shanghai Jiao Tong University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 70 Years

Inclusion criteria

Inclusion criteria: Inclusion Criteria for Patients with Herpes Zoster or Postherpetic Neuralgia: 1. Age 40–70 years (55–70 years in Study II); 2. Diagnosis of herpes zoster confirmed by clinical examination combined with viral culture and immunofluorescence staining, or a definite history of herpes zoster with a diagnosis of postherpetic neuralgia confirmed by physical examination; 3. No psychiatric disorders or relevant medical history; 4. No recent use of psychotropic medications; 5. Normal cognitive function and able to communicate and perform experimental tasks; 6. Written informed consent provided by the subject. Inclusion Criteria for Healthy Subjects: 1. Age 40–70 years; 2. No neurological or psychiatric disorders or relevant medical history; 3. No recent use of psychotropic medications or medications that may affect the nervous system; 4. Normal cognitive function and able to communicate and perform experimental tasks; 5. Written informed consent provided by the subject.

Exclusion criteria

Exclusion criteria: 1. Severe cognitive and communication impairments that prevent cooperation; 2. Functional impairment or failure of major organs, including the heart, lungs, liver, and kidneys; 3. Failure to meet the requirements for scalp electroencephalography recording, including but not limited to damaged scalp skin, partial absence of brain tissue, cranial defects, or intracranial metal implants.

Design outcomes

Primary

MeasureTime frame
Montreal Cognitive Assessment(MoCA) Beijing Version;

Secondary

MeasureTime frame
VAS Pain Score Scale;Douleur Neuropathique 4 questions,(DN4);electroencephalogram (EEG);Pittsburgh Sleep Quality Index (PSQI);Patient Health Questionnaire-9;Generalized Anxiety Disorder-7;

Countries

China

Contacts

Public ContactHuichun Luo

Renji Hospital, Shanghai Jiao Tong University School of Medicine

luohuichun2015@163.com+86 21 6838 3364

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 15, 2026