Phase 2 Chronic Low Back Pain Study

NCT ID: NCT01364922

Last Updated: 2014-01-29

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

168 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-06-30

Study Completion Date

2011-10-31

Brief Summary

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The primary purpose of this study was to evaluate the analgesic effect and safety of hydrocodone/acetaminophen extended release compared to placebo.

Detailed Description

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This phase 2, multicenter, double-blind (DB), placebo-controlled, randomized withdrawal study compared the analgesic efficacy and safety of hydrocodone/acetaminophen extended release to placebo in subjects with moderate to moderately severe chronic lower back pain (CLBP). Participants met pre-defined criteria at the conclusion of the open-label (OL) Titration Period to proceed to randomization into the double-blind (DB) Maintenance Period of the study. Study drug was given for a total of approximately 5 weeks, which included 2 weeks in OL, 2 weeks in DB, and a 3-day taper. During the OL period, all participants took increasing doses of hydrocodone/acetaminophen extended release until they were taking 2 tablets, twice daily. During the DB period, participants in the hydrocodone/acetaminophen extended release group took 1 hydrocodone/acetaminophen extended release tablet twice daily throughout the 2 weeks, while participants in the placebo group took 1 placebo tablet twice daily.

Conditions

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Chronic Low Back Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Open-label Hydrocodone/Acetaminophen Extended Release

Hydrocodone/acetaminophen extended release, 2 tablets twice daily

Group Type EXPERIMENTAL

hydrocodone/acetaminophen extended release

Intervention Type DRUG

Double-blind Hydrocodone/Acetaminophen Extended Release

Hydrocodone/acetaminophen extended release, 1 tablet twice daily

Group Type EXPERIMENTAL

hydrocodone/acetaminophen extended release

Intervention Type DRUG

Double-blind Placebo

Placebo, 1 tablet twice daily

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Interventions

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hydrocodone/acetaminophen extended release

Intervention Type DRUG

Placebo

Intervention Type DRUG

Other Intervention Names

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ABT-712

Eligibility Criteria

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Inclusion Criteria

Adult subjects who have a diagnosis of chronic low back pain of at least 6 month duration

Exclusion Criteria

Subjects with a history of surgical or invasive intervention
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AbbVie (prior sponsor, Abbott)

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pedro Quintana Diez, MD

Role: STUDY_DIRECTOR

AbbVie

Locations

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Site Reference ID/Investigator# 54875

Tucson, Arizona, United States

Site Status

Site Reference ID/Investigator# 54876

Anaheim, California, United States

Site Status

Site Reference ID/Investigator# 54877

Burbank, California, United States

Site Status

Site Reference ID/Investigator# 54873

Lomita, California, United States

Site Status

Site Reference ID/Investigator# 54874

DeLand, Florida, United States

Site Status

Site Reference ID/Investigator# 54866

Oldsmar, Florida, United States

Site Status

Site Reference ID/Investigator# 54879

Marietta, Georgia, United States

Site Status

Site Reference ID/Investigator# 54865

Valparaiso, Indiana, United States

Site Status

Site Reference ID/Investigator# 54782

Prairie Village, Kansas, United States

Site Status

Site Reference ID/Investigator# 54862

Pasadena, Maryland, United States

Site Status

Site Reference ID/Investigator# 54878

Watertown, Massachusetts, United States

Site Status

Site Reference ID/Investigator# 54880

St Louis, Missouri, United States

Site Status

Site Reference ID/Investigator# 54881

Williamsville, New York, United States

Site Status

Site Reference ID/Investigator# 54872

Cincinnati, Ohio, United States

Site Status

Site Reference ID/Investigator# 54863

Marion, Ohio, United States

Site Status

Site Reference ID/Investigator# 54745

Killeen, Texas, United States

Site Status

Site Reference ID/Investigator# 54742

San Antonio, Texas, United States

Site Status

Countries

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United States

Related Links

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Other Identifiers

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M12-807

Identifier Type: -

Identifier Source: org_study_id

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