NCT02290405

Brief Summary

The purpose of this study is to learn more about people with insomnia disorder and cognitive impairment. Cognitive impairment is difficulty with mental abilities such as thinking, knowing and remembering.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
89

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2014

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

October 1, 2014

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

November 4, 2014

Completed
10 days until next milestone

First Posted

Study publicly available on registry

November 14, 2014

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2017

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2017

Completed
3.2 years until next milestone

Results Posted

Study results publicly available

March 30, 2021

Completed
Last Updated

March 30, 2021

Status Verified

May 1, 2018

Enrollment Period

3.1 years

First QC Date

November 4, 2014

Results QC Date

May 31, 2018

Last Update Submit

March 4, 2021

Conditions

Keywords

insomniaprimary insomniachronic insomnia

Outcome Measures

Primary Outcomes (1)

  • Number of Incorrect Trials During the Computer-administered Attention-Switching Task Test.Attention-Switching Task Latency Error Rate

    Number of incorrect trials during the computer-administered Attention-Switching Task test, aka Attention-Switching Task test.Attention-Switching Task Latency Error Rate

    All study activities for each participant were conducted during a one-day period

Study Arms (2)

Primary Insomnia (PI)

PI sufferers enrolled will meet Research Diagnostic Criteria for insomnia disorder, score \> 14 on the Insomnia Severity Index, report insomnia for \> 3 months, have sleep difficulties \> 3 nights per week, score \< 3 on the Epworth Sleepiness Scale (ESS), score \> 40 on the Hyperarousal Scale10 and report an inability to nap in the daytime.

Behavioral: Multiple Sleep Latency Test (MSLT)

Normal Sleepers (NS)

The normal sleepers enrolled will report general satisfaction with sleep and no sleep/wake complaints, score \< 10 on the ESS, score \< 35 on the Hyperarousal Scale10, and deny a practice of routine daytime napping.

Behavioral: Multiple Sleep Latency Test (MSLT)

Interventions

The daytime protocol will include a 4-trial Multiple Sleep Latency Test (MSLT) along with 4-trials of a computer -administered battery of reaction time tasks. The assessment protocol will start two to three hours after participants' respective morning rising times and will begin with a battery of the neuro-cognitive testing followed by an MSLT nap. Per standard MSLT procedures, the daytime testing will be scheduled so the four performance testing and sleepiness assessment trials occur two hours apart. All daytime testing will be conducted under the supervision of trained laboratory technologists.

Normal Sleepers (NS)Primary Insomnia (PI)

Eligibility Criteria

Age21 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

This study will use a matched-groups cross-sectional experimental design. Age and gender matched groups of hyperaroused PI sufferers and non-complaining normal sleepers (NS) will be recruited and enrolled. A comprehensive screening process that includes structured sleep and psychiatric interviews, screening questionnaires, medical exam, and diagnostic PSG will be used to determine eligible subjects.

You may qualify if:

  • to 80 years of age
  • Insomnia sufferers enrolled, will meet Research Diagnostic Criteria for insomnia disorder
  • score \> 14 on the Insomnia Severity Index
  • report insomnia for \> 3 months
  • have sleep difficulties \> 3 nights per week
  • score \< 3 on the Epworth Sleepiness Scale (ESS)
  • score \> 40 on the Hyperarousal Scale and report an inability to nap in the daytime
  • The normal sleepers enrolled will report general satisfaction with sleep and no sleep/wake complaints, score \< 10 on the ESS, score \< 35 on the Hyperarousal Scale, and deny a practice of routine daytime napping

You may not qualify if:

  • sleep-disruptive medical condition (e.g., rheumatoid arthritis)
  • current major psychiatric (Axis I) condition on the basis of a Structured Clinical Interview for Psychiatric Disorders (SCID)
  • sedative hypnotic dependence and unwillingness/inability to abstain from these medications while in the study
  • use of anxiolytics, antidepressants, or any other psychotropic medication
  • an apnea/hypopnea index (AHI) \> 5 or a periodic limb movement-related arousal index \> 5 during on screening PSG that includes a full sleep montage to allow for detection/diagnosis of sleep-disordered breathing and Periodic Limb Movement Disorder (PLMD).
  • female participants who have tested positive on urine pregnancy tests or planing on becoming pregnant during the study
  • Additionally, self-described NS who meet criteria for any sleep disorder and those insomnia sufferers who meet criteria for a comorbid sleep disorder in addition to insomnia disorder will also be excluded

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Jewish Health

Denver, Colorado, 80206, United States

Location

Related Publications (1)

  • Edinger JD, Bathgate CJ, Tsai S, Khassawneh B. Impact of daytime sleepiness and insomnia on simple and complex cognitive task performances. Sleep Med. 2021 Nov;87:46-55. doi: 10.1016/j.sleep.2021.08.004. Epub 2021 Aug 12.

MeSH Terms

Conditions

Sleep Initiation and Maintenance Disorders

Condition Hierarchy (Ancestors)

Sleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental Disorders

Results Point of Contact

Title
Bryan Simmons
Organization
National Jewish Health

Study Officials

  • Jack Edinger, PhD

    National Jewish Health

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor, Department of Medicine

Study Record Dates

First Submitted

November 4, 2014

First Posted

November 14, 2014

Study Start

October 1, 2014

Primary Completion

October 31, 2017

Study Completion

December 31, 2017

Last Updated

March 30, 2021

Results First Posted

March 30, 2021

Record last verified: 2018-05

Locations