A Safety and Efficacy Study of Xyrem® (Sodium Oxybate) to Treat Fibromyalgia.

The objective of this trial is to evaluate the safety and efficacy of Xyrem® compared to placebo for the treatment of fibromyalgia in a randomized, double blind, placebo controlled, parallel group trial.

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Key information

Conditions

Fibromyalgia Arthralgia Joint Diseases Muscular Diseases Musculoskeletal Diseases Musculoskeletal Pain Myalgia Nervous System Diseases Neurologic Manifestations Neuromuscular Diseases Pain Pathological Conditions, Signs and Symptoms Rheumatic Diseases Signs and Symptoms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Rhumatologie, Amiens, France

About this study

The trial is a randomized, double blind, placebo controlled, parallel group trial in subjects diagnosed with fibromyalgia in accordance with the American College of Rheumatology. Total duration is up to twenty-two (22) weeks of trial participation. Subjects will undergo a screening and withdrawal/washout period lasting up to five (5) weeks combined followed by baseline period lasting one (1) week. Total treatment duration will be fourteen (14) weeks followed by a two week safety follow-up post treatment period. During the screening and withdrawal/washout period, no study medication will be given; however rescue medication up to 4 grams per day of acetaminophen (paracetemol) will be allowed.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Male or female subjects, 18 years or older who meet the American College of Rheumatology (ACR) diagnostic criteria for fibromyalgia.

Exclusion criteria

Subjects will be excluded if they have a history of rheumatic disease or other disorders that may compromise reliable representation of subjective symptoms.
Any other condition that will cause a risk to subjects if they participate in the trial is also a reason for exclusion.

Treatment and study plan

Placebo

Drug

Oral Solution

Xyrem®

Drug

two doses

Primary outcomes

Pain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).

Time frame: Baseline to Week 14

Percentage of pain VAS responders. Subjects with a >= 30% reduction in pain VAS from baseline to endpoint (week 14) were considered responders; all other subjects were considered non-responders. Missing data were handled using BOCF (Baseline Observation Carried Forward). The pain VAS ranges from 0 (no pain) to 100 (worst imaginable pain). The pain VAS was collected morning, afternoon and evening. Baseline is the average value recorded for the measure during the week prior to the end-of-baseline visit. Endpoint is the average value recorded for the measure during the week prior to week 14.

Sponsors and collaborators

Lead sponsor

Jazz Pharmaceuticals

Industry

Registry information

Official study title

A Randomized, Double-Blind, Placebo-Controlled, Safety and Efficacy Study of Xyrem® (Sodium Oxybate) in Subjects With Fibromyalgia.

Important dates

Study start: 2006
Primary completion: 2009
Study completion: 2009
First posted: Jan 18, 2007
Registry last updated: Jan 24, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed