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Trial · NCT00423813

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

NCT00423813, Phase 3, Completed, Jazz Pharmaceuticals; results first posted 2012-01-10

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Safety and Efficacy Study of Xyrem® (Sodium Oxybate) to Treat Fibromyalgia. Trials, record NCT00423813. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00423813

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Safety and Efficacy Study of Xyrem® (Sodium Oxybate) to Treat Fibromyalgia.
NCT number
NCT00423813
Status
Completed
Phases
Phase 3
Enrollment
573 participants, actual
Lead sponsor
Jazz Pharmaceuticals
Conditions
Fibromyalgia
Interventions
placebo, Xyrem®
First posted
2007-01-18
Last updated
2012-01-24
Results first posted
2012-01-10

Source ClinicalTrials.gov

Registered outcomes1

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

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

Outcomes1

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).Baseline to Week 14Percentage of ParticipantsNUMBER

Results by group6

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Pain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).PlaceboResponder20.2Percentage of Participants
Pain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).Xyrem (Sodium Oxybate) 4.5gResponder35.4Percentage of Participants
Pain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).Xyrem (Sodium Oxybate) 6.0gResponder35.3Percentage of Participants
Pain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).PlaceboNon - Responder79.8Percentage of Participants
Pain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).Xyrem (Sodium Oxybate) 4.5gNon - Responder64.6Percentage of Participants
Pain VAS (Visual Analog Scale) Response. Percentage of Subjects With a Greater Than or Equal to 30% Reduction in Pain VAS From Baseline (BOCF).Xyrem (Sodium Oxybate) 6.0gNon - Responder64.7Percentage of Participants

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo188
Overall StudySTARTEDXyrem (Sodium Oxybate) 4.5g195
Overall StudySTARTEDXyrem (Sodium Oxybate) 6.0g190
Overall StudyTreatedPlacebo188
Overall StudyTreatedXyrem (Sodium Oxybate) 4.5g194
Overall StudyTreatedXyrem (Sodium Oxybate) 6.0g189
Overall StudyCOMPLETEDPlacebo131
Overall StudyCOMPLETEDXyrem (Sodium Oxybate) 4.5g129
Overall StudyCOMPLETEDXyrem (Sodium Oxybate) 6.0g116
Overall StudyNOT COMPLETEDPlacebo57

Adverse events177

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherPalpatationsCardiac disordersPlacebo2188
otherPalpatationsCardiac disordersXyrem (Sodium Oxybate) 4.5g2194
otherPalpatationsCardiac disordersXyrem (Sodium Oxybate) 6.0g4189
otherVertigoEar and labyrinth disordersPlacebo4188
otherVertigoEar and labyrinth disordersXyrem (Sodium Oxybate) 4.5g8194
otherVertigoEar and labyrinth disordersXyrem (Sodium Oxybate) 6.0g7189
otherVision BlurredEye disordersPlacebo2188
otherVision BlurredEye disordersXyrem (Sodium Oxybate) 4.5g4194
otherVision BlurredEye disordersXyrem (Sodium Oxybate) 6.0g3189
otherNauseaGastrointestinal disordersPlacebo16188

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo
Total, all-cause mortalityXyrem (Sodium Oxybate) 4.5g
Total, all-cause mortalityXyrem (Sodium Oxybate) 6.0g
Total, other adverse eventsPlacebo126188
Total, other adverse eventsXyrem (Sodium Oxybate) 4.5g146194
Total, other adverse eventsXyrem (Sodium Oxybate) 6.0g156189
Total, serious adverse eventsPlacebo3188
Total, serious adverse eventsXyrem (Sodium Oxybate) 4.5g2194
Total, serious adverse eventsXyrem (Sodium Oxybate) 6.0g3189

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00423813

GET https://conductscience.org/api/trials/v1/NCT00423813/events?page=2