NCT00871650

Brief Summary

The overarching aim of this Exploratory/Developmental Research Grant Award (R21) is to explore the neurobiological correlates of PTSD during REM sleep by using state-of-the science positron emission tomography (PET) sleep imaging. This study will allow us to gain insight into the differences in sleep and waking brain mechanisms between veterans with PTSD and those without PTSD.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
24

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Mar 2009

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2009

Completed
25 days until next milestone

First Submitted

Initial submission to the registry

March 26, 2009

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 30, 2009

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2011

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2011

Completed
Last Updated

January 16, 2013

Status Verified

January 1, 2013

Enrollment Period

2 years

First QC Date

March 26, 2009

Last Update Submit

January 14, 2013

Conditions

Keywords

Post Traumatic Stress DisorderPTSDBrainImagingPETNeuralSleepREM Sleep

Outcome Measures

Primary Outcomes (2)

  • Brain glucose metabolism

    During waking

  • Brain glucose metabolism

    During REM sleep

Study Arms (2)

Combat Veterans with PTSD

Male Veterans of Operation Iraqi Freedom (OIF) and/or Operation Enduring Freedom (OEF), ages 18-50, with Combat Exposure Scale score \> 17, who are not on medication and do not have trauma history before age 18.

Other: Sleep data recordingOther: PET scan - wakingOther: PET scan - REM Sleep

Combat Veterans without PTSD

Male Veterans of Operation Iraqi Freedom (OIF) and/or Operation Enduring Freedom (OEF), ages 18-50, with combat experience, who are not suffering from PTSD, and who are not on medication.

Other: Sleep data recordingOther: PET scan - wakingOther: PET scan - REM Sleep

Interventions

After completing the screening procedures, eligible participants will sleep in the laboratory for three consecutive nights of EEG sleep studies, one waking \[18F\]-FDG PET scan, and one REM sleep PET scan according to published methods.

Combat Veterans with PTSDCombat Veterans without PTSD

After completing the screening procedures, eligible participants will sleep in the laboratory for three consecutive nights of EEG sleep studies, one waking \[18F\]-FDG PET scan, and one REM sleep PET scan according to published methods.

Combat Veterans with PTSDCombat Veterans without PTSD

After completing the screening procedures, eligible participants will sleep in the laboratory for three consecutive nights of EEG sleep studies, one waking \[18F\]-FDG PET scan, and one REM sleep PET scan according to published methods.

Combat Veterans with PTSDCombat Veterans without PTSD

Eligibility Criteria

Age18 Years - 50 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Male Veterans of Operation Iraqi Freedom (OIF) and/or Operation Enduring Freedom (OEF), ages 18-50, with combat experience, who are not on medication.

You may qualify if:

  • Male OIF/OEF returnees between the ages of 18 and 45 years old
  • Combat Exposure Scale score \> 17
  • Not taking medications known to affect sleep or wake function for at least 2 weeks (6 weeks for fluoxetine).
  • No history of trauma before age 18
  • Meet diagnostic criteria for current PTSD according to the CAPS-1
  • CAPS-1 score is less than 80
  • Total CAPS-1 scores \< 17
  • Does not meet criteria for PTSD

You may not qualify if:

  • Trauma occurred less than 3 months prior to study entry
  • CES score \< 17
  • Taking medications known to affect sleep and / or brain glucose metabolism
  • Current diagnosis of depression as determined by the SCID or BDI score \> 13
  • History of psychotic or bipolar disorder
  • Current history (within 3 months) of substance or alcohol abuse as determined by the SCID
  • Positive alcohol blood test at screening or during the PET protocol
  • Significant or unstable acute or chronic medical conditions
  • Other current sleep disorders, such as insufficient sleep syndrome, delayed sleep phase syndrome, narcolepsy, restless legs syndrome, periodic leg movement disorder, obstructive sleep apnea, and current night shift work, suspected during the structured interview. Individuals who are found to have a apnea-hypopnea index (AHI) \> 10 or an index of periodic leg movements with arousal \> 15 will be excluded.
  • Presence of implanted devices such as cardiac pacemaker, aneurysm clip, ear implant, shrapnel, neurostimulators or other metal devices
  • Fear of closed spaces
  • Previous radiation. Due to the risk of radiation exposure, we will exclude subjects who have had PET scans or other radiotracer exposure in the previous year.
  • History of open head injury.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pittsburgh

Pittsburgh, Pennsylvania, 15213, United States

Location

Related Publications (1)

  • Stocker RP, Cieply MA, Paul B, Khan H, Henry L, Kontos AP, Germain A. Combat-related blast exposure and traumatic brain injury influence brain glucose metabolism during REM sleep in military veterans. Neuroimage. 2014 Oct 1;99:207-14. doi: 10.1016/j.neuroimage.2014.05.067. Epub 2014 Jun 2.

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental Disorders

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 26, 2009

First Posted

March 30, 2009

Study Start

March 1, 2009

Primary Completion

March 1, 2011

Study Completion

November 1, 2011

Last Updated

January 16, 2013

Record last verified: 2013-01

Locations