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Comparing Bupivacaine Liposomes with Conventional Bupivacaine for Paracervical Nerve Block in the Treatment of Acute Herpes Zoster Neuralgia

Comparing bupivacaine liposome with conventional bupivacaine for epidural nerve block in the treatment of acute herpes zoster neuralgia:a randomized, double-blind, placebo-controlled clinical trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500112433
Enrollment
Unknown
Registered
2025-11-13
Start date
2025-07-01
Completion date
Unknown
Last updated
2025-11-17

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

Conditions

Acute Herpes Zoster:

Interventions

The experimental group:Paravertebral nerve block was carried out using bupivacaine liposome injection
The control group:Paravertebral nerve block was performed using bupivacaine hydrochloride

Sponsors

Affiliated Hospital of Guangdong Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18 years or above; 2. Meets diagnostic criteria for postherpetic neuralgia: history of herpes zoster, presenting with needle-prick, electric shock-like, or burning pain in the corresponding nerve distribution area; localised hyperalgesia, hyperesthesia, or numbness may be present, with possible herpetic lesions or residual hyperpigmentation; 3. Lesion location within the C2–C7 or T1–L5 spinal nerve distribution areas; 4. Visual analogue scale (VAS) score > 3 points; 5. Diagnosis of postherpetic neuralgia within one month of herpes eruption, with prior standard antiviral treatment; 6. No immunomodulatory agents taken within the preceding four weeks; 7. Willingness to comply with treatment and follow-up protocols; 8. Signed informed consent form.

Exclusion criteria

Exclusion criteria: 1. Patients with bacterial infection at the site of skin lesions; 2. Patients with severely compromised immune function or those undergoing long-term corticosteroid or immunosuppressive therapy; 3. Patients with severe organ dysfunction; 4. Patients with severe coagulation disorders; 5. Patients with known hypersensitivity to the investigational medicinal product; 6. Pregnant or breastfeeding women; 7. During the observation period (2 months), taking other analgesic medications (including non-steroidal anti-inflammatory drugs, opioid analgesics) not specified in this study protocol; 8. Herpes zoster lesions located outside the C2–C7, T1–L5 spinal nerve distribution areas, or coexisting with other painful conditions; 9. Inability to cooperate with assessments for any reason; 10. Aged 90 years or older;

Design outcomes

Primary

MeasureTime frame
The score of Herpes Zoster Disease Burden (HZ-BOI);

Secondary

MeasureTime frame
The VAS pain score after treatment;Sleep Quality Rating;Life Quality Rating;Anxiety Symptom Rating;

Countries

China

Contacts

Public ContactTangjing

Affiliated Hospital of Guangdong Medical University

tanglitangjing@126.com+86 131 8909 1282

Outcome results

None listed

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