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CompletedNCT01605253Updated Dec 23, 2022Results posted

Eszopiclone for the Treatment of Posttraumatic Stress Disorder

A Phase 4 interventional study of Eszopiclone and Placebo in Posttraumatic Stress Disorders, sponsored by Rush University Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2022-12-23.

Sponsored by Rush University Medical Center · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
81
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to determine if eszopiclone relative to placebo (sugar pill) is effective and tolerable for people with posttraumatic stress disorder (PTSD)-related sleep disturbance. The investigators will also examine the impact of treatment on sleep patterns, memory recall bias, and level of inflammatory markers (cytokines). The investigators predict eszopiclone will lead to greater improvement than placebo in measures of PTSD symptoms, memory recall bias, and level of inflammatory markers.

02

Conditions studied

  • Posttraumatic Stress Disorders

Keywords

  • Post-traumatic stress disorder
  • sleep disturbance
  • insomnia
  • cytokines
  • anxiety
  • traumatic event
  • memory
03

In context

Stress Disorders, Traumatic

1,147 studies on the registry are indexed under Stress Disorders, Traumatic; 108 are open to participants now.

This study's enrollment of 81 is above the median of 60 across 908 interventional studies indexed under Stress Disorders, Traumatic.

Browse Stress Disorders, Traumatic studies →

Lead sponsor

Rush University Medical Center is the lead sponsor of 394 studies on the registry; 61 are open to participants now.

Of its 30 completed or terminated interventional studies of FDA-regulated products, 25 (83%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Male or female outpatients age 18-65 with a primary diagnosis of PTSD and associated sleep disturbance
  • Good physical health
  • Willingness and ability to comply with the requirements of the study protocol

Exclusion criteria

Exclusion Criteria:

  • Women pregnant, lactating, or of childbearing potential not using medically accepted contraception
  • Concurrent use of other psychotropic medications at least two weeks prior to baseline
  • Concurrent use of other anti-inflammatory medications or anti-cytokine medications. If used on an as-needed (PRN) basis, subjects may enter the study, but will be excluded from cytokine analyses
  • Concurrent use of beta-blockers less than one month prior to baseline
  • Serious medical illness or instability for which hospitalization may be likely within the next year
  • Seizure disorders with the exception of a history of febrile seizures if they occurred during childhood
  • Sleep apnea or restless leg syndrome
  • Concurrent psychotherapy initiated within 3 months of randomization or ongoing psychotherapy of any duration directed specifically toward treatment of PTSD and/or sleep disturbance
  • Patients with significant suicidal ideation
  • Current legal actions related to trauma or an ongoing relationship with assailant
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
81 participants (actual)

Study arms

  • Active comparator
    Eszopiclone

    The total study duration is 16 weeks, with subjects taking 3mg eszopiclone at bedtime for 12 weeks. There is one follow-up visit after the 12 week treatment phase.

    Drug: Eszopiclone

  • Placebo comparator
    Placebo

    The total study duration is 16 weeks, with subjects taking placebo at bedtime for 12 weeks. There is one follow-up visit after the 12 week treatment phase.

    Drug: Placebo

Interventions

  • DrugEszopiclone

    Eszopiclone has been approved by the US Food and Drug Administration (FDA) for the treatment of insomnia (inability to sleep). Eszopiclone has not been specifically approved by the FDA for people who have PTSD-related sleep disturbance.

    Also known as: Lunesta®

  • DrugPlacebo

    The placebo used in this study looks exactly like eszopiclone but contains no active ingredients.

06

What researchers measure

Primary outcomes

  1. Change in Symptoms of Post-Traumatic Stress Disorder (PTSD) Between Baseline and Week 12

    The Clinician-Administered PTSD Scale (CAPS) is a highly detailed measure of the presence and severity of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-IV) Post-Traumatic Stress Disorder (PTSD) criteria. The severity score was calculated by adding up the frequency score (scale 0 = "none of the time" to 4 = "most or all of the time") and an intensity score (scale 0 = "none" to 4 = "extreme"), which can then be summed for all 17 symptom questions and/or for the three symptom clusters. Scores range from 0 to 136, where greater than or equal to 80 represents extreme PTSD symptomatology.

    Time frame: Between Baseline and Week 12

Secondary outcomes

  1. Total Score on the Pittsburgh Sleep Quality Index With Post-Traumatic Stress Disorder Addendum (PSQI)

    This standard daily sleep diary addresses timing of sleep, ability to fall and stay asleep, dreams, nightmares, and factors which can affect sleep (e.g. caffeine). It requires a summary of the subscales: Duration of sleep + Sleep Disturbance + Sleep Latency + Days of dysfunction due to sleepiness + Sleep efficiency + Overall Sleep Quality + Needing medication to sleep. All subscales are measured from 0 to 3 (Minimum Score = 0 better; Maximum Score = 3 worse). The Minimum TOTAL Score is 0 (better) and Maximum TOTAL Score is 21 (worse).

    Time frame: Changes in total score between Baseline and Week 12 (range of 0 to 21 worse)

  2. Changes in Emotional Bias Memory Encoding Between Baseline and Week 12

    Changes in Emotional Bias Memory Encoding by measuring mean hits minus the false alarms at baseline and at week 12. Subjects perform an encoding session on the 1st day utilizing 147 picture slides, thirty six pictures with negative valence, 36 with neutral valence and additional 75 pictures randomly intermixed. Higher false alarms are associated with lower emotional bias memory encoding.

    Time frame: Baseline and week 12

  3. Cytokine Inflammatory Markers

    Differences between baseline and week 12 on Interferon-Gamma, Interleukin-βeta, Interleukin-6, Tumor Necrosis Factor-alpha levels between treatment arms (eszopiclone versus placebo).

    Time frame: Week 12

  4. Cytokine Inflammatory Marker on Interleukin-2

    Differences between baseline and week 12 on Interleukin-2 levels between treatment arms (eszopiclone versus placebo).

    Time frame: Week 12

07

Results

Posted Dec 23, 2022

Participant flow

Participant flow — Overall Study
MilestoneEszopiclonePlacebo
Started1312
Completed79
Not completed63
Withdrew: Physician decision32
Withdrew: Lost to follow-up31

Outcome measures

PrimaryChange in Symptoms of Post-Traumatic Stress Disorder (PTSD) Between Baseline and Week 12

The Clinician-Administered PTSD Scale (CAPS) is a highly detailed measure of the presence and severity of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-IV) Post-Traumatic Stress Disorder (PTSD) criteria. The severity score was calculated by adding up the frequency score (scale 0 = "none of the time" to 4 = "most or all of the time") and an intensity score (scale 0 = "none" to 4 = "extreme"), which can then be summed for all 17 symptom questions and/or for the three symptom clusters. Scores range from 0 to 136, where greater than or equal to 80 represents extreme PTSD symptomatology.

Time frame:
Between Baseline and Week 12
Reported as:
Mean · units on a scale
Change in Symptoms of Post-Traumatic Stress Disorder (PTSD) Between Baseline and Week 12
units on a scaleEszopiclonePlacebo
Change in Symptoms of Post-Traumatic Stress Disorder (PTSD) Between Baseline and Week 12-23 ± 17.61-20 ± 15.22
SecondaryTotal Score on the Pittsburgh Sleep Quality Index With Post-Traumatic Stress Disorder Addendum (PSQI)

This standard daily sleep diary addresses timing of sleep, ability to fall and stay asleep, dreams, nightmares, and factors which can affect sleep (e.g. caffeine). It requires a summary of the subscales: Duration of sleep + Sleep Disturbance + Sleep Latency + Days of dysfunction due to sleepiness + Sleep efficiency + Overall Sleep Quality + Needing medication to sleep. All subscales are measured from 0 to 3 (Minimum Score = 0 better; Maximum Score = 3 worse). The Minimum TOTAL Score is 0 (better) and Maximum TOTAL Score is 21 (worse).

Time frame:
Changes in total score between Baseline and Week 12 (range of 0 to 21 worse)
Reported as:
Mean · units on a scale
Total Score on the Pittsburgh Sleep Quality Index With Post-Traumatic Stress Disorder Addendum (PSQI)
units on a scaleEszopiclonePlacebo
Total Score on the Pittsburgh Sleep Quality Index With Post-Traumatic Stress Disorder Addendum (PSQI)-4.13 ± 2.93-3.33 ± 3.59
SecondaryChanges in Emotional Bias Memory Encoding Between Baseline and Week 12

Changes in Emotional Bias Memory Encoding by measuring mean hits minus the false alarms at baseline and at week 12. Subjects perform an encoding session on the 1st day utilizing 147 picture slides, thirty six pictures with negative valence, 36 with neutral valence and additional 75 pictures randomly intermixed. Higher false alarms are associated with lower emotional bias memory encoding.

Time frame:
Baseline and week 12
Reported as:
Mean · units on a scale
Changes in Emotional Bias Memory Encoding Between Baseline and Week 12
units on a scaleEszopiclonePlacebo
Changes in Emotional Bias Memory Encoding Between Baseline and Week 1293 ± 31102 ± 32
SecondaryCytokine Inflammatory Markers

Differences between baseline and week 12 on Interferon-Gamma, Interleukin-βeta, Interleukin-6, Tumor Necrosis Factor-alpha levels between treatment arms (eszopiclone versus placebo).

Time frame:
Week 12
Reported as:
Mean · pg/ml
Cytokine Inflammatory Markers
pg/mlEszopiclonePlacebo
Interferon-GAMMA pg/mL3.62 ± 13.98-1.55 ± 6.35
Interleukin-βeta pg/mL-0.10 ± 40.30 ± 7
Interleukin-6 pg/mL1.29 ± 8-0.08 ± 9
Tumor Necrosis Factor-alpha pg/mL67.27 ± 1164.80 ± 10
SecondaryCytokine Inflammatory Marker on Interleukin-2

Differences between baseline and week 12 on Interleukin-2 levels between treatment arms (eszopiclone versus placebo).

Time frame:
Week 12
Reported as:
Mean · IU
Cytokine Inflammatory Marker on Interleukin-2
IUEszopiclonePlacebo
Cytokine Inflammatory Marker on Interleukin-21.67 ± 8-0.07 ± 9

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Eszopiclone—0/13 (0%)9/13 (69.2%)
Placebo—0/12 (0%)9/12 (75%)
Most frequent other events
Showing 10 of 18
Most frequent other events
EventEszopiclonePlacebo
DysgeusiaGeneral disorders4/133/12
HeadacheGeneral disorders2/133/12
SedationGeneral disorders3/130/12
Dry mouthGeneral disorders1/132/12
GI distressGastrointestinal disorders2/131/12
ConstipationGastrointestinal disorders1/131/12
DiarrheaGastrointestinal disorders0/131/12
DizzinessGeneral disorders0/131/12
JitterinessGeneral disorders0/131/12
Muscle crampingMusculoskeletal and connective tissue disorders0/131/12

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)EszopiclonePlaceboTotal
<=18 years000
Between 18 and 65 years131225
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)EszopiclonePlaceboTotal
Female5510
Male8715
Region of Enrollment
Region of Enrollment(Participants)EszopiclonePlaceboTotal
United States131225
08

Study locations

1 site
  • Center for Anxiety and Traumatic Stress Disorders at Rush
    Chicago, Illinois 60612, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 23, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01605253
Lead sponsor
Rush University Medical Center
Collaborators
National Institute of Mental Health (NIMH)
Responsible party
Sponsor
First posted
May 24, 2012
Start date
Mar 2012
Primary completion
Dec 2015
Completion
Dec 2015
Results posted
Dec 23, 2022
Last update
Dec 23, 2022

Study contacts

Mark Pollack, MD
principal investigator · Rush University Medical Center

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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