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Completed Phase 2 Interventional

Efficacy and Safety of EN3324 (Axomadol) in Subjects With Chronic Low Back Pain

ClinicalTrials.gov ID: NCT01043263

Public ClinicalTrials.gov record NCT01043263. 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 Sep 20, 2026, 6:38 PM 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 IIB, Randomized, Double-blind, Two-arm, Multi-center, Placebo-controlled, Study to Assess the Efficacy and Safety of EN3324 (Axomadol) in Subjects With Moderate to Severe Chronic Low Back Pain

Brief summary

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

The purpose of this study is to determine the efficacy and safety of EN3324 (axomadol) in subjects with moderate to severe chronic low back pain

Study identification

NCT ID
NCT01043263
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Grünenthal GmbH
Industry
Enrollment
236 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
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
Nov 30, 2009
Primary completion
May 31, 2011
Completion
May 31, 2011
Last update posted
Apr 1, 2015

2009 – 2011

United States locations

U.S. sites
59
U.S. states
19
U.S. cities
46
Facility City State ZIP Site status
Matthew Doust, MD Phoenix Arizona 85050
Paradigm Clinical Tucson Arizona 85705
Visions Clinical Research Tucson Arizona 85712
Genova Clinical Research, Inc. Tucson Arizona 85741
Quality of Life Medical & Research Center Tuscon Arizona 85715
Advanced Clinical Research Institute Anaheim California 92801
Orange County Clinical Trials, Inc. Anaheim California 92801
Associated Pharmaceutical Research Center, Inc. Buena Park California 90620
Catalina Research Institute, LLC Chino California 91710
Paradigm Clinical Research Garden Grove California 92844
Synergy Escondido La Mesa California 91942
Triwest Research Associates La Mesa California 91942
LBCCR Long Beach California 90806
Pacific Institute for Med Research Los Angeles California 90024
Samaritan Center for Medical Research Los Gatos California 95032
Synergy Research Center National City California 91950
Northern California Research Sacramento California 95821
Mountain View Clinical Research Denver Colorado 80209
Avail Clinical Research DeLand Florida 32720
Neuropsychiatric Research Center of SW Florida Fort Myers Florida 33912
CNS Healthcare Jacksonville Florida 32216
Florida Institute of Medical Research Jacksonville Florida 32257
Behavioral Clinical Research, Inc. Lauderhill Florida 33319
Segal Institute for Clinical Research North Miami Florida 33161
CNS Health Orlando Florida 32806
Compass Research Orlando Florida 32806
Altas Orthopedics & Sports Medicine Orlando Florida 32822
Gold Coast Research LLC. Plantation Florida 33324
Medex Healthcare Research, Inc. Chicago Illinois 60603
Center for Pain Management Rehabilitation Institute of Chicago Chicago Illinois 60611
Integrated Clinical Trial Services Inc. West Des Moines Iowa 50265
International Clinical Research Institute Inc. Overland Park Kansas 66211
Robert Wagner, MD Crestview Hills Kentucky 41017
Four Rivers Clinical Research Paducah Kentucky 42003
Beacon Clinical Research LLC Brockton Massachusetts 02301
Quest Research Institute Bingham Farms Michigan 48025
Prime Care Research Associates Florissant Missouri 63031
Medex Health Research, Inc. St Louis Missouri 63117
Sundance Clinical Research St Louis Missouri 63141
Office of Danka Micheals, MD Las Vegas Nevada 89128
Stephen Miller, MD Las Vegas Nevada 89144
Comprehensive Clinical Research Berlin New Jersey 08009
Finger Lakes Clinical Research Rochester New York 14618
New Hanover Medical Research Wilmington North Carolina 28401
The Center for Clinical Research, LLC & Carolinas Pain Institute, P.A. Winstom-Salem North Carolina 27103
David Schneider, MD Cincinnari Ohio 45245
Community Research Cincinnati Ohio 45227
North Star Medical Research, LLC Middleburg Heights Ohio 44130
Bone, Joint & Spine Surgeons, Inc. Toledo Ohio 43623
Neurology & Neruoscience Center of Ohio Toledo Ohio 43623
Alleghany Pain Management, PC Altoona Pennsylvania 16602
Paragon Clinical Research Inc. Cranston Rhode Island 02920
Omega Clinical Research Warwick Rhode Island 02818
Future Search Trials Ausitn Texas 78756
Austin Diagnostic Clinic Ausitn Texas 78758
KRK Medical Research Dallas Texas 75230
Clinical Trial Network Houston Texas 77074
Medex Healthcare Research Houston Texas 77074
Sun Research Institute San Antonio Texas 78215

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

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01043263, 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 Apr 1, 2015 · Synced Sep 20, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01043263 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →