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Efficacy of local intradermal injection of botulinum toxin type A combined with pulsed radiofrequency in postherpetic neuralgia

Efficacy of local intradermal injection of botulinum toxin type A combined with pulsed radiofrequency in postherpetic neuralgia

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2000041539
Enrollment
Unknown
Registered
2020-12-28
Start date
2021-01-01
Completion date
Unknown
Last updated
2021-03-15

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

Conditions

Postherpetic neuralgia

Interventions

Subacute phase of herpesoster neuralgia Experimental group (B1):Pulsed radiofrequency combined with botulinum toxin type A subcutaneous injection
Subacute phase of herpesoster neuralgia Control group (A1):Pulsed radiofrequency combined with lidocaine subcutaneous injection
Postherpetic neuralgia Experimental group (B2):Pulsed radiofrequency combined with botulinum toxin type A subcutaneous injection
Postherpetic neuralgia Control group (A2):Pulsed radiofrequency combined with lidocaine subcutaneous injection

Sponsors

The Affiliated Hospital of Southwest Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
15 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1. Those with postherpetic neuralgia lasting for more than 1 month or paroxysmal pain for more than 3 months. 2. Any age or gender. 3. those who do not have significant pain relief from medications and nerve blocks and have a VAS score > 5. 4. those who agree to be admitted and have the ability to understand and answer questionnaires. 5. those who do not have serious cardiovascular or other diseases and can tolerate the procedure. 6. No contraindication to radiofrequency treatment.

Exclusion criteria

Exclusion criteria: 1. Allergic to botulinum toxin type A, lidocaine, dexamethasone; 2. Defective language expression, incapable of autonomous behavior; 3. Psychiatric patients, children, pregnant women, critical care patients; 4. Those with abnormal coagulation function.

Design outcomes

Primary

MeasureTime frame
NRS score;VRS score;QS sleep quality score;

Secondary

MeasureTime frame
Time to reduce the dose of oral medication;Rate of development of herpes zoster neuralgia into PHN;

Countries

China

Contacts

Public ContactFubo Li

Department of Pain Management, The Affiliated Hospital of Southwest Medical University

xuxu0016@swmu.edu.cn+86 18716108971

Outcome results

None listed

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