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Completed Phase 2 Interventional Results available

Safety and Efficacy of AVP-923 in the Treatment of Central Neuropathic Pain in Multiple Sclerosis

ClinicalTrials.gov ID: NCT01324232

Public ClinicalTrials.gov record NCT01324232. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 25, 2026, 10:11 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 2, Double-blind, Randomized, Placebo-controlled, Four-arm, Multicenter, Dose-finding Study to Assess the Safety and Efficacy of Three Dose Levels of AVP-923 (Dextromethorphan/Quinidine) in the Treatment of Central Neuropathic Pain in Patients With Multiple Sclerosis

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The objectives of the study are to evaluate the safety, tolerability, and efficacy of 3 doses of AVP-923 capsules in the treatment of central neuropathic pain in participants with multiple sclerosis.

Study identification

NCT ID
NCT01324232
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Avanir Pharmaceuticals
Industry
Enrollment
209 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 85 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 8, 2011 (Actual)
Primary completion
Sep 26, 2013 (Actual)
Completion
Sep 26, 2013 (Actual)
Last update posted
Nov 22, 2021

2011 – 2013

United States locations

U.S. sites
44
U.S. states
24
U.S. cities
43
Facility City State ZIP Site status
North Central Neurology Associates PC Cullman Alabama 35058 —
St. Joseph's Hospital Medical Center Phoenix Arizona 85013 —
Alta Bates Summit Medical Center Berkeley California 94705 —
University of California, Irvine Orange California 92868 —
Coordinated Clinical Research San Diego California 92103 —
University of California, San Francisco San Francisco California 94158 —
University of Colorado Aurora Colorado 80045 —
Neurology Associates, PA Maitland Florida 32751 —
Collier Neurologic Specialists Naples Florida 34102 —
Laszlo J. Mate, MD North Palm Beach Florida 33408 —
Neurology Associates of Ormond Beach Ormond Beach Florida 32174 —
Neurological Associates Pompano Beach Florida 33060 —
Neurologique Foundation Ponte Vedra Beach Florida 32082-4040 —
Suncoast Neuroscience Associates, Inc. St. Petersburg Florida 33713 —
University of South Florida Tampa Florida 33612 —
Geodyssey Research, LLC Vero Beach Florida 32960 —
Shepard Center Atlanta Georgia 30309 —
Rush-Presbyterian St. Luke's Medical Center Chicago Illinois 60612 —
Consultants in Neurology Northbrook Illinois 60062 —
Josephson Wallack Munshower Neurology, P.C. Indianapolis Indiana 46256 —
MidAmerica Neuroscience Institute Lenexa Kansas 66214 —
Johns Hopkins University School of Medicine Baltimore Maryland 21287 —
Beth Israel Deaconess Medical Center Boston Massachusetts 02215 —
Michigan Neurology Associates, P.C. Clinton Township Michigan 48035 —
Wayne State University Detroit Michigan 48201 —
Henry Ford Health System Detroit Michigan 48202 —
Advanced Neurology Specialists Great Falls Montana 59405 —
Neurology Associates PC Lincoln Nebraska 68506 —
Albany Medical Center Hospital Albany New York 12208 —
NYU-Hospital for Joint Diseases New York New York 10003 —
University of Rochester Rochester New York 14642 —
SUNY at Stony Brook Stony Brook New York 11794 —
Carolinas Medical Center Charlotte North Carolina 28207 —
Cleveland Clinic Foundation Cleveland Ohio 44195 —
Oklahoma Medical Research Foundation Oklahoma City Oklahoma 73104 —
Drexel University College of Medicine Philadelphia Pennsylvania 19107 —
Geisinger Health System Wilkes-Barre Pennsylvania 18711 —
Advanced Neurosciences Institute Franklin Tennessee 37064 —
Baylor College of Medicine Houston Texas 77030 —
Rocky Mountain MS Clinic Salt Lake City Utah 84103 —
Neurological Associates Henrico Virginia 23226 —
MS Center of Greater Washington Vienna Virginia 22182 —
Swedish Medical Center Seattle Washington 98122 —
MultiCare Health System Tacoma Washington 98405 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 28 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01324232, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 22, 2021 · Synced Oct 25, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01324232 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →