Analgesic Efficacy and Safety of V116517 in Subjects With Moderate to Severe Chronic Pain Due to Postherpetic Neuralgia (PHN)



Status:Completed
Conditions:Chronic Pain, Postherpatic Neuralgia
Therapuetic Areas:Musculoskeletal, Neurology
Healthy:No
Age Range:21 - 90
Updated:3/1/2014
Start Date:September 2012
End Date:April 2014
Contact:Patient Recruitment Specialist
Phone:1-877-285-9802

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A Phase 2, Randomized, Double-blind, Placebo- and Active-controlled, Parallel-group, Multicenter Study Evaluating the Analgesic Efficacy and Safety of V116517 in Subjects With Moderate to Severe Chronic Pain Due to Postherpetic Neuralgia (PHN)

The primary objective of this study is to evaluate the analgesic efficacy of 2 dose levels
of V116517 versus placebo.


Key Inclusion Criteria:

1. Subjects with chronic pain due to PHN as their primary pain condition and some degree
of pain every day from this condition.

2. Clinical diagnosis of PHN based on history of painful dermatomal blistering rash
resolving in a few weeks followed by persistent pain in the same region of ≥ 3 months
duration.

Key Exclusion Criteria:

1. Subjects with chronic pain conditions other than PHN as their predominant pain
condition, including gout, pseudo gout, psoriatic arthritis, active Lyme disease,
rheumatoid arthritis or any other inflammatory arthritis, fibromyalgia, neuropathic
pain conditions, bursitis, or acute injury or signs of active infection in the target
pain area.

2. Subjects who cannot or will not agree to stop all concomitant analgesic medications
apart from specified protocol supplemental analgesic medications.

3. Subjects with a recent history of seizure within the past 5 years.

4. Subjects who use opioids more than 4 days per week.

5. Subjects with clinically unstable medical conditions, including cardiac disease
(unstable atrial fibrillation, symptomatic bradycardia, unstable congestive heart
failure, or active myocardial ischemia); respiratory disease; biliary tract disease;
hypothyroidism; adrenal cortical insufficiency; or any other medical condition that
in the investigator's opinion is inadequately treated and precludes entry into the
study.

6. Subjects with a history of suicide attempts, or subjects clinically judged by the
principal investigator (PI) to be at serious risk of suicide.

7. PHN-pain-condition-specific exclusions:

- Subjects who received pain-control interventions including neurolytic blocks or
neurosurgical procedures to the affected nerve or spinal cord segment, spinal
cord, stimulators, or neuraxial infusion pumps.

8. Active-comparator-related exclusions:

- Subjects who are allergic to or cannot tolerate pregabalin or acetaminophen.

Other protocol specific inclusion/exclusion criteria may apply.
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