NCT02375126

Brief Summary

In this study, the investigators will collect EEG data in normal, healthy volunteers without a history of prior brain injury. This data will be analyzed by computer (quantitative, or qEEG) and stored in a normative database so that, in the future, the investigators can better understand and characterize the brain damage that can result from carbon monoxide (CO) poisoning and other types of brain injury.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Mar 2014

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2014

Completed
12 months until next milestone

First Submitted

Initial submission to the registry

February 19, 2015

Completed
11 days until next milestone

First Posted

Study publicly available on registry

March 2, 2015

Completed
8.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2023

Completed
Last Updated

August 10, 2022

Status Verified

August 1, 2022

Enrollment Period

9.8 years

First QC Date

February 19, 2015

Last Update Submit

August 8, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Electroencephalography Completion Questionnaire (Y/N)

    Electroencephalography study completed for the participant. (Y/N)

    Baseline

Study Arms (3)

Ages 18-35, no antidepressant use

Ages 18-35, up to 15 males and 15 females, no antidepressant use

Procedure: Electroencephalography

Ages 36-55, no antidepressant use

Ages 36-55, up to 15 males and 15 females, no antidepressant use

Procedure: Electroencephalography

Ages 18-55, with antidepressant use

Ages 18-55, up to 10 males and 10 females, taking antidepressants

Procedure: Electroencephalography

Interventions

Electroencephalography (EEG) is a relatively inexpensive measurement of basic brain activity. Traditional EEG techniques rely on the clinician to visually examine the electrical current waveforms to identify abnormal signal patterns and slowing. Abnormalities on EEG have been reported following CO poisoning, though the literature is scarce. While current EEG technologies record EEG signals digitally, rather than writing directly to paper, computer-assisted analysis of the data (quantitative EEG, or qEEG) has not been widely embraced, in part because clinicians are unsure what patterns revealed by computer-assisted analysis represent abnormal activity.

Also known as: EEG
Ages 18-35, no antidepressant useAges 18-55, with antidepressant useAges 36-55, no antidepressant use

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Normal, healthy volunteers (adult men and women, ages 18-55) will be selected from a carefully screened convenience sample.

You may qualify if:

  • Men and women, from 18 to 55 years old at the time of study enrollment. Women who are greater than 6 weeks post-partum, who are breastfeeding are allowed to participate if they are able to finish the electroencephalography (EEG) without interruption.
  • Able to speak and read English as their primary language.
  • Agrees to, and appears able to, participate in all outcome assessments.
  • Demonstrates the ability to offer informed consent and signs the study informed consent document.

You may not qualify if:

  • Vulnerable populations including, prisoners, pregnant women, and minors.
  • Women who are less than 6 weeks post-partum.
  • Unwilling or unable to participate in planned study visits.
  • Any past history of brain injury due to trauma, surgery, hypoxia, infection, inflammation, toxicity (e. g., carbon monoxide poisoning), or cerebrovascular etiology.
  • Individuals with a diagnosis of, or a persistent history of, or symptoms of a neurological disorder (e.g., tinnitus, vertigo, chronic fatigue, numbness, tingling, chronic migraine, fibromyalgia, multiple sclerosis).
  • Currently undergoing therapy for affective disorders, behavioral disorders, or psychological disorders.
  • Diagnosis of post-traumatic stress disorder or sub-clinical post-traumatic stress symptoms.
  • Diagnosis of diabetes mellitus, type 1 and type 2.
  • Current complaints of brain injury symptoms such as cognitive or affective problems.
  • Known neuroimaging abnormalities.
  • Participants taking daily prescription drugs or oral over the counter medications beyond vitamins that could impact a normal outcome determined by the Principal Investigator (e.g., beta blockers).
  • Participants who are ≥45 may be taking statins or angiotensin converting enzyme (ACE) inhibitors.
  • Participants between the ages of 18-55 may be taking antidepressants indicated for depression or post-partum depression.
  • Oral or injectable contraceptives are permitted
  • Known atrial septal defect, including but not limited to patent foramen ovale.
  • +12 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Intermountain Healthcare, LDS Hospital

Salt Lake City, Utah, 84143, United States

RECRUITING

MeSH Terms

Conditions

Carbon Monoxide Poisoning

Condition Hierarchy (Ancestors)

Gas PoisoningPoisoningChemically-Induced Disorders

Study Officials

  • Lindell K Weaver, MD

    Intermountain Health Care, Inc.

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Lindell K Weaver, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 19, 2015

First Posted

March 2, 2015

Study Start

March 1, 2014

Primary Completion

December 1, 2023

Study Completion

December 1, 2023

Last Updated

August 10, 2022

Record last verified: 2022-08

Locations