Effects Of Pregabalin (Lyrica) On Sleep Maintenance In Subjects With Fibromyalgia

Effects Of Pregabalin On Sleep Maintenance In Subjects With Fibromyalgia Syndrome And Sleep Maintenance Disturbance: A Randomized Placebo-Controlled 2-Way Crossover Polysomnography Study

The purpose of the study is to demonstrate the effect of Lyrica on Wake after sleep onset in subjects with fibromyalgia with sleep maintenance disturbance (on polysomnogram)

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

119

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Alberta
      • Calgary, Alberta, Canada, T2X 3V4
        • Pfizer Investigational Site
      • Edmonton, Alberta, Canada, T5R 5W5
        • Pfizer Investigational Site
    • British Columbia
      • Kelowna, British Columbia, Canada, V1Y 3G8
        • Pfizer Investigational Site
      • Kelowna, British Columbia, Canada, V1Y 4R9
        • Pfizer Investigational Site
    • Ontario
      • Mississauga, Ontario, Canada, L5B 4M4
        • Pfizer Investigational Site
      • Point Edward, Ontario, Canada, N7V 1X4
        • Pfizer Investigational Site
      • Thornhill, Ontario, Canada, L4J 6X2
        • Pfizer Investigational Site
      • Toronto, Ontario, Canada, M6J 3S3
        • Pfizer Investigational Site
      • Toronto, Ontario, Canada, M4P 1P2
        • Pfizer Investigational Site
      • Toronto, Ontario, Canada, M3H 3V6
        • Pfizer Investigational Site
      • Berlin, Germany, 10117
        • Pfizer Investigational Site
      • Berlin, Germany, 10969
        • Pfizer Investigational Site
      • Berlin, Germany, 12683
        • Pfizer Investigational Site
      • Berlin, Germany, 13125
        • Pfizer Investigational Site
      • Chemnitz, Germany, 09111
        • Pfizer Investigational Site
      • Goeppingen, Germany, 73033
        • Pfizer Investigational Site
      • Goeppingen, Germany, 73035
        • Pfizer Investigational Site
      • Muenchen, Germany, 80336
        • Pfizer Investigational Site
      • Muenchen, Germany, 81675
        • Pfizer Investigational Site
      • Schwerin, Germany, 19053
        • Pfizer Investigational Site
    • Arizona
      • Phoenix, Arizona, United States, 85013
        • Pfizer Investigational Site
      • Phoenix, Arizona, United States, 85020
        • Pfizer Investigational Site
      • Tucson, Arizona, United States, 85741
        • Pfizer Investigational Site
    • California
      • San Diego, California, United States, 92102
        • Pfizer Investigational Site
    • Colorado
      • Colorado Springs, Colorado, United States, 80909
        • Pfizer Investigational Site
    • Florida
      • DeLand, Florida, United States, 32720
        • Pfizer Investigational Site
      • Hallandale Beach, Florida, United States, 33009
        • Pfizer Investigational Site
      • Orange City, Florida, United States, 32763
        • Pfizer Investigational Site
      • Pembroke Pines, Florida, United States, 33026
        • Pfizer Investigational Site
      • South Miami, Florida, United States, 33143
        • Pfizer Investigational Site
    • Georgia
      • Atlanta, Georgia, United States, 30342
        • Pfizer Investigational Site
    • Illinois
      • Chicago, Illinois, United States, 60634
        • Pfizer Investigational Site
    • Kansas
      • Overland Park, Kansas, United States, 66212
        • Pfizer Investigational Site
    • Kentucky
      • Crestview Hills, Kentucky, United States, 41017
        • Pfizer Investigational Site
      • Louisville, Kentucky, United States, 40217
        • Pfizer Investigational Site
    • Louisiana
      • Baton Rouge, Louisiana, United States, 70809
        • Pfizer Investigational Site
    • Mississippi
      • Hattiesburg, Mississippi, United States, 39401
        • Pfizer Investigational Site
      • Hattiesburg, Mississippi, United States, 39402
        • Pfizer Investigational Site
    • North Carolina
      • Raleigh, North Carolina, United States, 27612
        • Pfizer Investigational Site
    • Ohio
      • Beachwood, Ohio, United States, 44122
        • Pfizer Investigational Site
      • Cleveland, Ohio, United States, 44122
        • Pfizer Investigational Site
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73103
        • Pfizer Investigational Site
      • Oklahoma City, Oklahoma, United States, 73112
        • Pfizer Investigational Site
    • Pennsylvania
      • Duncansville, Pennsylvania, United States, 16635
        • Pfizer Investigational Site
      • Philadelphia, Pennsylvania, United States, 19114
        • Pfizer Investigational Site
      • Philadelphia, Pennsylvania, United States, 19139
        • Pfizer Investigational Site
    • South Carolina
      • Columbia, South Carolina, United States, 29201
        • Pfizer Investigational Site
    • Texas
      • Dallas, Texas, United States, 75230
        • Pfizer Investigational Site
      • Dallas, Texas, United States, 75248
        • Pfizer Investigational Site
      • Houston, Texas, United States, 77063
        • Pfizer Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subjects must meet diagnostic criteria for fibromyalgia;
  • Subjects must report difficulty in maintaining sleep at least 3 times per week and meet Research Diagnostic Criteria (RDC) for insomnia disorder, corroborated by subject diary, and meet PSG inclusion criteria at visit 3.

Exclusion Criteria:

  • History of active sleep disorder other than Research Diagnostic Criteria(RDC) insomnia criteria or any sleep or circadian rhythm disturbance;
  • Use of medications known to affect sleep wake function by Visit 2;
  • Involved in night or rotating shift work, or travel across >4 time zones 14 days prior to screening and during study; regular daytime napping
  • PSG finding of apnea/hypopnea or periodic limb movement with arousal index >10/hr on either night of PSG.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Capsule, flexible dosing double-blind. Treatment duration is approximately 4 weeks
Experimental: Lyrica
flexible dosing Lyrica 300-450mg/day
Capsule, flexible dosing double-blind. Treatment duration is approximately 4 weeks titrated to 300-450 mg/day

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Wake After Sleep Onset (WASO) at Weeks 5 and 11
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or Early Termination (ET)
WASO was the sum of wake time during sleep measured in epochs (30 seconds of polysomnography [PSG]) recording) after the onset of persistent sleep and prior to final awakening and wake time after sleep (the number of epochs after the final awakening until the end of PSG recording [i.e. awake epoch immediately prior to the end of the recording]) on 2 consecutive nights divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or Early Termination (ET)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Wake Time During Sleep (WTDS)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
WTDS, as determined by PSG, was the total amount of time awake the participant experienced after the onset of persistent sleep and prior to the final awakening, or at the end of 8 hours of recording. WTDS was the sum of 2 consecutive nights of recordings divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Wake Time After Sleep (WTAS)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
WTAS, as determined by PSG, was the total amount of time awake after the final awakening until the end of the 8 hours. WTAS was the sum of 2 consecutive nights of recordings divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Total Sleep Time (TST)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
TST, as determined by PSG, was the number of non-wake epochs from the beginning of recording to the end of the recording. TST was the sum of 2 consecutive nights of recording divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Sleep Efficiency (SE)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
SE, as determined by PSG, was the TST divided by the time in bed, multiplied by 100. The sum of 2 consecutive nights of recording divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Number of Awakenings After Sleep Onset (NAASO 1)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
NAASO 1, as determined by PSG, was the number of times there was a wake period of at least one epoch in duration. Each entry counted was separated by a Stage 2 epoch, Stage 3 and 4 epoch, or Stage rapid eye movement (REM) epoch. The sum of 2 consecutive nights of recording was divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Number of Awakenings After Sleep Onset (NAASO 2)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
NAASO 2, as determined by PSG, was the number of times that there was a wake period of at least two epochs in duration. Each entry counted was separated by a Stage 2 epoch, Stage 3 and 4 epoch, or Stage REM epoch. The sum of 2 consecutive nights of recording divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Latency to Persistent Sleep (LPS)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
LPS, as determined by PSG, was the total number of epochs recorded on 2 consecutive nights divided by 2 at the end of each intervention period, from the beginning of the recording to the start of the first 20 consecutive non-wake epochs.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
WASO by Hour of the Night
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
WASO, as determined by PSG, was the wake time during sleep (number of wake epochs after the onset of persistent sleep and prior to final awakening) and wake time after sleep (the number of epochs after the final awakening until the end of PSG recording) on 2 consecutive nights divided by 2 at the end of each intervention period by each individual hour (8 hours total).
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
WASO by Each Quarter of the Night
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
WASO, as determined by PSG, was the sum of wake time during sleep (number of wake epochs after the onset of persistent sleep and prior to final awakening) and wake time after sleep (the number of epochs after the final awakening until the end of PSG recording) on 2 consecutive nights divided by 2 at the end of each intervention period by each individual quarter of the night (eight hours in 2 hour increments).
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Slow Wave Sleep (SWS)
Time Frame: Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
SWS, as determined by PSG, Stage 3 plus 4 sleep divided by TST times 100 was the percentage of TST. The sum of 2 consecutive nights of recording divided by 2 at the end of each intervention period.
Week 5 (End of Intervention Period 1) and Week 11 (End of Intervention Period 2) or ET
Change From Baseline in MOS-SS Sleep Disturbance at Weeks 5 and 11
Time Frame: Week 1 (Baseline Intervention Period 1), Week 5 (End of Intervention Period 1), Week 7 (Baseline Intervention Period 2) and Week 11 (End of Intervention Period 2) or ET
MOS-SS, a participant rated instrument used to assess sleep quantity and quality over the previous week, was comprised of 12 items yielding 7 subscale scores and 2 index composite index scores. Sleep Disturbance subscale score (4 items): individual scores were transformed (actual raw score minus lowest possible score divided by possible raw score range times 100) and ranged from 0 to 100; higher score indicated greater disturbance. Total score ranged=0 to 100; higher score indicates greater intensity of attribute. Change was score at week x minus score at baseline.
Week 1 (Baseline Intervention Period 1), Week 5 (End of Intervention Period 1), Week 7 (Baseline Intervention Period 2) and Week 11 (End of Intervention Period 2) or ET
Change From Baseline in MOS-SS Sleep Problems Index II Weeks 5 and 11
Time Frame: Week 1 (Baseline Intervention Period 1), Week 5 (End of Intervention Period 1), Week 7 (Baseline Intervention Period 2) and Week 11 (End of Intervention Period 2) or ET
MOS-SS, a participant rated instrument used to assess sleep quantity and quality over the previous week, was compromised of 12 items yielding 7 subscale scores and 2 index composite index scores. Composite index included Sleep Problems Index II (9 items), scores ranged from 0 to 100; higher scores indicated greater sleep problems. Change was score at week x minus score at baseline.
Week 1 (Baseline Intervention Period 1), Week 5 (End of Intervention Period 1), Week 7 (Baseline Intervention Period 2) and Week 11 (End of Intervention Period 2) or ET
Sleep Quality
Time Frame: Weeks 1, 2, 3 and 4 of Each Intervention Period or ET
Sleep Quality as meassured by numeric rating scale (NRS), a participant rated scale 0 to 10, (0 = very poor sleep, 10 = excellent sleep). Weekly values were calculated as the average of the participants daily diary scores.
Weeks 1, 2, 3 and 4 of Each Intervention Period or ET
Latency of Sleep Onset (LSO)
Time Frame: Weeks 1, 2, 3 and 4 of Each Intervention Period or ET
LSO as reported on daily Subjective Sleep Questionnaire (SSQ), a participant reported subjective estimate of the amount of time to fall asleep after lights out. Weekly values were calculated as the average minutes reported on the participant's daily SSQ.
Weeks 1, 2, 3 and 4 of Each Intervention Period or ET
Daily Pain Score
Time Frame: Daily up to Day 73 or ET
Pain intensity as measured by NRS; a participant rated scale 0 to 10 (0 = no pain to 10 = worst pain possible). Weekly values were calculated as the average of the participants daily pain scores.
Daily up to Day 73 or ET
Subjective Wake After Sleep Onset (sWASO)
Time Frame: Weeks 1, 2, 3 and 4 of Each Intervention Period or ET
sWASO as reported on daily SSQ, a participant reported subjective estimate of the total amount of time the participant was awake after initial sleep onset until final awakening. Weekly values were calculated as the average of the participant's daily SSQ values.
Weeks 1, 2, 3 and 4 of Each Intervention Period or ET
Subjective Total Sleep Time (sTST)
Time Frame: Weeks 1, 2, 3 and 4 of Each Intervention Period or ET
sTST as reported on daily SSQ, a participant reported subjective estimate of the total amount of time the participant was asleep after lights out until final awakening. Weekly values were calculated as the average of the participants daily SSQ values.
Weeks 1, 2, 3 and 4 of Each Intervention Period or ET

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2009

Primary Completion (Actual)

June 1, 2010

Study Completion (Actual)

June 1, 2010

Study Registration Dates

First Submitted

April 17, 2009

First Submitted That Met QC Criteria

April 17, 2009

First Posted (Estimate)

April 20, 2009

Study Record Updates

Last Update Posted (Actual)

January 25, 2021

Last Update Submitted That Met QC Criteria

January 21, 2021

Last Verified

July 1, 2011

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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