A Study to Evaluate the Safety and Tolerability of Arbaclofen Placarbil (XP19986) in Subjects With Acute Back Spasms

NCT ID: NCT00817986

Last Updated: 2021-02-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

161 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-12-31

Study Completion Date

2009-07-31

Brief Summary

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The purpose of the study is to evaluate safety and tolerability of arbaclofen placarbil sustained release tablets taken every 12 hours compared to placebo in subjects with acute back spasms in the lumbar region.

Detailed Description

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Conditions

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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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Arbaclofen placarbil 20 mg

Arbaclofen placarbil 20 mg, BID, for 14 days including the taper period.

Group Type EXPERIMENTAL

Arbaclofen placarbil, 20 mg

Intervention Type DRUG

tablets

Placebo for Arbaclofen placarbil

Placebo for 14 days

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

tablets

Arbaclofen placarbil 30 mg

Arbaclofen placarbil 30 mg, BID, for 14 days including the taper period.

Group Type EXPERIMENTAL

Arbaclofen placarbil, 30 mg

Intervention Type DRUG

tablets

Arbaclofen placarbil 40 mg

Arbaclofen placarbil 40 mg, BID, for 14 days including the taper period.

Group Type EXPERIMENTAL

Arbaclofen placarbil, 40 mg

Intervention Type DRUG

tablets

Interventions

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Arbaclofen placarbil, 20 mg

tablets

Intervention Type DRUG

Placebo

tablets

Intervention Type DRUG

Arbaclofen placarbil, 30 mg

tablets

Intervention Type DRUG

Arbaclofen placarbil, 40 mg

tablets

Intervention Type DRUG

Other Intervention Names

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XP19986 SR3 Sugar Pill XP19986 SR3 XP19986 SR3 tablets

Eligibility Criteria

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Inclusion Criteria

1. Acute moderate to severe muscle spasms in the lumbar region, as indicated by a minimum Visual Analog Scale pain severity score of 4.0 cm, beginning either:

* within four days prior to screening for subjects who do not require a 24-hour washout

Or
* within three days for subjects who require a 24-hour washout
2. Willing to discontinue all analgesics (e.g. NSAIDS, COX-2 inhibitors, acetaminophen), aspirin \>81 mg/day, short-acting muscle relaxants (i.e. carisoprodol, Soma®), and herbal remedies for pain at least 24 hours prior to first dose and to refrain from use during the study (cardio-protective doses of aspirin ≤ 81 mg /day are allowed).

Exclusion Criteria

1. Clinically significant abnormal neurological history or examination at screening (excluding back spasm), including lumbar radicular symptoms, spinal stenosis, foot drop, herniated nucleus pulposus, or other structural defects
2. Subjects with back spasm related to major trauma to the region
3. Subjects with muscle spasms due to a work-related injury or subjects involved in any injury-related litigation
4. Subjects using any of the following medications at screening:

* Opioids, both short- and long-acting including but not limited to: morphine, fentanyl patch, oxycodone, tramadol)
* benzodiazepines, such as valium and lorazepam
* cyclobenzaprine containing drugs (e.g., Flexeril, Amrix)
* carisoprodol (e.g., Soma®) within 24 hours of screening
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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XenoPort, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Study Director

Role: STUDY_DIRECTOR

Indivior Inc.

Locations

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Litchfield Park, Arizona, United States

Site Status

Anaheim, California, United States

Site Status

Anaheim, California, United States

Site Status

San Diego, California, United States

Site Status

Vista, California, United States

Site Status

Fort Lauderdale, Florida, United States

Site Status

Miami, Florida, United States

Site Status

Atlanta, Georgia, United States

Site Status

Overland Park, Kansas, United States

Site Status

Erlanger, Kentucky, United States

Site Status

Traverse City, Michigan, United States

Site Status

Brick, New Jersey, United States

Site Status

Raleigh, North Carolina, United States

Site Status

Winston-Salem, North Carolina, United States

Site Status

Oklahoma City, Oklahoma, United States

Site Status

Anderson, South Carolina, United States

Site Status

Dallas, Texas, United States

Site Status

Houston, Texas, United States

Site Status

San Antonio, Texas, United States

Site Status

Salt Lake City, Utah, United States

Site Status

Countries

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United States

Other Identifiers

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XP-B-083

Identifier Type: -

Identifier Source: org_study_id

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