Comparative Efficacy of Pregabalin and Lacosamide in Patients With Herpes Zoster and Post Herpetic Neuralgia

NCT ID: NCT06969417

Last Updated: 2025-05-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-10

Study Completion Date

2025-09-30

Brief Summary

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Post-herpetic neuralgia (PHN) is the most significant complication of herpes zoster caused by reactivation of latent Varicella-Zoster virus (VZV). PHN is characterized by neuropathic pain lasting beyond the resolution of the rashes. Post herpetic neuralgia (PHN) represents a potentially debilitating and often undertreated form of neuropathic pain that disproportionately affects vulnerable populations, including the elderly and the immunocompromised. PHN pain is typically localized, unilateral and chronic, but may be constant, intermittent, spontaneous and/or evoked. PHN is likely to interfere with sleep and daily activities.

Pregabalin is a gabapentinoid licenced for treatment of neurological disorders. It is one of the earlier drugs approved by the US Food and Drug Administration (2004) for the treatment of painful diabetic neuropathy and postherpetic neuralgia (PHN). Lacosamide (LCM) was approved in 2008 in the European Union and in the United States as adjunctive therapy for the treatment of focal-onset seizures with or without secondary generalization in adults and adolescents with epilepsy. Its efficacy has also been proven in neuropathic pain.

Although Pregabalin and Lacosamide have proven effective in various neuropathic pain disorder, comparative studies specifically for PHN remain scarce. This study aims to compare the efficacy of Pregabalin and Lacosamide in PHN patients, addressing the current gap in literature and providing clinically relevant insights to optimize treatment selection.

Detailed Description

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Conditions

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Herpes Zoster (HZ) Post Herpetic Neuralgia (PHN)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Group A

Group A will receive Cap Pregabalin, the first intervention

Group Type ACTIVE_COMPARATOR

Pregabalin

Intervention Type DRUG

o Group A will receive Cap Pregabalin 150mg oral OD for 4 weeks

Group B

Group B will receive Tab Lacosamide

Group Type EXPERIMENTAL

Lacosamide

Intervention Type DRUG

o Group B will receive Tab Lacosamide 100mg oral BD for 4 weeks

Interventions

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Pregabalin

o Group A will receive Cap Pregabalin 150mg oral OD for 4 weeks

Intervention Type DRUG

Lacosamide

o Group B will receive Tab Lacosamide 100mg oral BD for 4 weeks

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Diagnosed cases of herpes zoster suffering from postherpetic neuralgia
* Ages: 18 to 50
* Both male and female

Exclusion Criteria

* Lack of consent
* Patient already taking pain killers for post herpetic neuralgia
* Patients suffering from other systemic illness
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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CMH Kharian Medical College

OTHER_GOV

Sponsor Role lead

Responsible Party

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Mushayada Irshad

Dr Mushayada Irshad

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Usman Nawaz, MBBS, Mphil, PhD Pharmacology

Role: STUDY_CHAIR

CMH Kharian Medical College

Locations

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CMH Kharian Medical College

Kharan, Punjab Province, Pakistan

Site Status RECRUITING

Countries

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Pakistan

Central Contacts

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Mushayada Irshad, MBBS, MPhil Pharmacology

Role: CONTACT

+92537532239

Muhammad Waseem Shahid, MBBS, FCPS Dermatology

Role: CONTACT

+923347202392

Facility Contacts

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Mushayada Irshad, MBBS, Mphil

Role: primary

+923237088421

Other Identifiers

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CKMC/IERB/AC-00225

Identifier Type: -

Identifier Source: org_study_id

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