Safety/Efficacy Study of Retigabine vs. Placebo in Post-Herpetic Neuralgia (PHN)

NCT ID: NCT00612105

Last Updated: 2018-05-08

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

187 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-10-31

Study Completion Date

2009-12-31

Brief Summary

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The purpose of the study is to evaluate the efficacy of retigabine vs. placebo in reducing pain associated with post-herpetic neuralgia.

Detailed Description

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This is a Phase 2a proof of concept study evaluating the safety/efficacy of retigabine vs. placebo in patients with post-herpetic neuralgia. After screening, patients will enter a maximum 6 week titration period followed by a 4 week maintenance period and a 3 week taper phase.

Conditions

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Postherpetic Neuralgia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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1

Retigabine

Group Type EXPERIMENTAL

Retigabine

Intervention Type DRUG

150mg/day up to 900mg/day

2

Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

daily

Interventions

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Retigabine

150mg/day up to 900mg/day

Intervention Type DRUG

Placebo

daily

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Ability to provide informed consent
* Male or female subjects
* 18-85 years of age
* PHN for more than 6 months after the healing of herpes zoster skin rash
* Has a pain score at screening and randomization that qualifies

Exclusion Criteria

* Other significant pain that may potentially confound PHN pain assessment
* Previous neurolytic or neurosurgical therapy for PHN
* Subject has evidence of a progressive central nervous system (CNS) disease (e.g. CNS lupus, tumors, multiple sclerosis, Alzheimer's), lesion, or encephalopathy
* Significant psychiatric or neuropsychiatric disorders including but not limited to severe depression, bipolar disorder or schizophrenia spectrum disorder, history of suicide attempt, or recent history of suicidal ideation
* Has clinically significant abnormalities on physical examination, vital signs, ECG, or laboratory tests at the screening visit
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Bausch Health Americas, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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David Lineberry

Role: STUDY_DIRECTOR

Sponsor GmbH

Locations

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Birmingham, Alabama, United States

Site Status

Mesa, Arizona, United States

Site Status

Tucson, Arizona, United States

Site Status

Little Rock, Arkansas, United States

Site Status

Garden Grove, California, United States

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La Jolla, California, United States

Site Status

San Diego, California, United States

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Westlake Village, California, United States

Site Status

Orlando, Florida, United States

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Sarasota, Florida, United States

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Tampa, Florida, United States

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West Palm Beach, Florida, United States

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Atlanta, Georgia, United States

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Atlanta, Georgia, United States

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Evansville, Indiana, United States

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Overland Park, Kansas, United States

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Lexington, Kentucky, United States

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Shreveport, Louisiana, United States

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Bay City, Michigan, United States

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Detroit, Michigan, United States

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Hattiesburg, Mississippi, United States

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St Louis, Missouri, United States

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St Louis, Missouri, United States

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Toms River, New Jersey, United States

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New York, New York, United States

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Raleigh, North Carolina, United States

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Tabor City, North Carolina, United States

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Winston-Salem, North Carolina, United States

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Fargo, North Dakota, United States

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Cleveland, Ohio, United States

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Mogadore, Ohio, United States

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Allentown, Pennsylvania, United States

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Bridgeville, Pennsylvania, United States

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Charleston, South Carolina, United States

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Little River, South Carolina, United States

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North Myrtle Beach, South Carolina, United States

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Nashville, Tennessee, United States

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Austin, Texas, United States

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San Antonio, Texas, United States

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Sugar Land, Texas, United States

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Midvale, Utah, United States

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Port Elizabeth, Eastern Cape, South Africa

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Bloemfontein, Free State, South Africa

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Belville, Western Cape, South Africa

Site Status

George, Western Cape, South Africa

Site Status

Countries

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United States South Africa

Other Identifiers

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VRX-RET-E22-NP201

Identifier Type: -

Identifier Source: org_study_id

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