A Study to Evaluate the Efficacy, Safety, and Tolerability of JNJ-42160443 in Patients With Neuropathic Pain (Postherpetic Neuralgia and Post-traumatic Neuralgia)

Pain Clinical Trial

Official title: A Multicenter, Randomized, Double-blind, Placebo-controlled, Dose-ranging Study to Evaluate the Efficacy, Safety, and Tolerability of JNJ-42160443 in Subjects With Postherpetic Neuralgia and Post-traumatic Neuralgia, Followed by a Double Blind Safety Extension and an Open-label Safety Extension

Status Terminated

Clinical Trial Summary

The purpose of this study is to evaluate the safety and effectiveness of JNJ-42160443 in the treatment of moderate to severe neuropathic pain in patients with a diagnosis of postherpetic neuralgia and post-traumatic neuralgia.

Clinical Trial Description

The current study is a randomized (study drug assigned by chance), double-blind (neither the study doctor nor the patient knows the name of the assigned drug), placebo-controlled, dose-ranging study to evaluate the efficacy, safety, and tolerability of JNJ-42160443 in patients with postherpetic neuralgia and post-traumatic neuralgia, followed by a double blind extension and an open-label (study doctor and patient knows the name of the study drug) extension. This study will evaluate the safety and effectiveness of JNJ-42160443 in the treatment of patients with moderate to severe, chronic, neuropathic pain that is not controlled with or without standard pain therapy and who have a diagnosis of postherpetic neuralgia (PHN) or post-traumatic neuralgia. The total duration of the study will be approximately 130 weeks (i.e., includes screening phase, 12-week double-blind efficacy phase, double-blind safety extension phase, and the open-label safety extension phase). During the 12 week treatment and 40 week double-blind extension phases, PHN patients will receive Placebo, JNJ 42160443 1, 3, or 10 mg and post-traumatic neuralgia patients will receive placebo or JNJ-42160443 10 mg; all doses will be given as a single, subcutaneous (under the skin) (SC) injection every 28 days. During the 52-week open-label extension phase, all patients will receive a single SC injection of JNJ-42160443 up to 10 mg every 4, 8, or 12 weeks. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Mononeuropathies
• Neuralgia
• Neuralgia, Postherpetic
• Pain

• NCT number: NCT00964990
• Study type: Interventional
• Source: Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
• Status: Terminated
• Phase: Phase 2
• Start date: September 2009
• Completion date: July 2011