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Multi-scale Modeling of Sleep Behaviors in Social Networks

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ClinicalTrials.gov Identifier: NCT02846077
Recruitment Status : Completed
First Posted : July 27, 2016
Last Update Posted : July 11, 2018
Sponsor:
Collaborators:
Massachusetts Institute of Technology
Harvard University
Information provided by (Responsible Party):
Elizabeth B. Klerman, Brigham and Women's Hospital

Brief Summary:
The project is designed to document in college undergraduates the relationships among sleep/wake timing and duration, use of mobile phones and other electronic devices, food timing and content, self-reported mood and physiological measures.

Condition or disease Intervention/treatment
Healthy Volunteers Other: No intervention. Observation only

Detailed Description:
College undergraduates are studied in cohorts of ~ 50 in fall or spring semesters. They complete diaries once in the morning and once in the evening about sleep/wake timing, timing of social and school activities, and mood. They wear physiological sensors. They install (1) an application on their mobile phone that tracks timing, duration and de-identified sender/recipient of phone calls and text messages, use of internet or apps (but not the content or names of those internet sites and apps) and (2) meal content and timing. They also spend at least one overnight session providing saliva samples for later assay for hormones.

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Study Type : Observational
Actual Enrollment : 729 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Multi-scale Modeling of Sleep Behaviors in Social Networks
Actual Study Start Date : September 2013
Actual Primary Completion Date : June 2018
Actual Study Completion Date : June 2018

Group/Cohort Intervention/treatment
College students
College students will be monitored and will complete online surveys, install apps on their mobile phones, wear physiological sensors and provide saliva samples for later assay.
Other: No intervention. Observation only
No intervention. Observation only




Primary Outcome Measures :
  1. Timing of sleep and wake [ Time Frame: Approximately one month ]
    Timing of self-reported sleep onset and wake onset

  2. Timing of phone use (e.g., mobile phone calls, text messages, applications and internet use) [ Time Frame: Approximately one month ]
    Timing of phone use (e.g, mobile phone calls, text messages, applications and internet use)


Secondary Outcome Measures :
  1. Mood [ Time Frame: Approximately one month ]
    Self-reported mood using a linear non-numeric scale

  2. Activity levels [ Time Frame: approximately one month ]
    Activity levels collected every minute using a wrist-worn device

  3. Light exposure levels [ Time Frame: approximately one month ]
    Light exposure levels collected every minute using a wrist-worn device

  4. Food choice [ Time Frame: approximately one month ]
    Content of food

  5. Circadian phase [ Time Frame: one day ]
    Calculated time of melatonin phase as a marker of circadian rhythms

  6. Electrodermal activity [ Time Frame: approximately one month ]
    Electrodermal activity as measured using a wrist-worn device

  7. Timing of meals [ Time Frame: approximately one month ]
    Time meals are eaten


Biospecimen Retention:   Samples Without DNA
Saliva


Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
College undergraduates
Criteria

Inclusion Criteria:

  • undergraduate at institution at which we have permission to perform study
  • owning a mobile device on which the phone app can be installed
  • ability to wear the wrist-worn sensors

Exclusion Criteria:

  • no travel outside one time zone starting approximately 2 weeks before monitoring begins through end of approximately one month of monitoring.
  • participation in a prior group studied

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02846077


Locations
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United States, Massachusetts
Brigham and Women's Hospital
Boston, Massachusetts, United States, 02115
Sponsors and Collaborators
Brigham and Women's Hospital
Massachusetts Institute of Technology
Harvard University
Investigators
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Principal Investigator: Elizabeth B Klerman, MD PhD Brigham and Women's Hospital
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Elizabeth B. Klerman, Associate Professor, Brigham and Women's Hospital
ClinicalTrials.gov Identifier: NCT02846077    
Other Study ID Numbers: BrighamHospital
First Posted: July 27, 2016    Key Record Dates
Last Update Posted: July 11, 2018
Last Verified: July 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided
Keywords provided by Elizabeth B. Klerman, Brigham and Women's Hospital:
sleep
social networks
undergraduates
mood
circadian rhythms