Bright Light as a Countermeasure for Circadian Desynchrony

This study is currently recruiting participants. (see Contacts and Locations)
Verified December 2013 by VA Palo Alto Health Care System
Sponsor:
Collaborators:
Stanford University
Palo Alto Institute for Research and Education, Inc
Information provided by (Responsible Party):
Jamie M. Zeitzer, Ph.D., VA Palo Alto Health Care System
ClinicalTrials.gov Identifier:
NCT01119365
First received: May 5, 2010
Last updated: December 17, 2013
Last verified: December 2013

May 5, 2010
December 17, 2013
July 2011
January 2016   (final data collection date for primary outcome measure)
Circadian phase [ Time Frame: 1 week ] [ Designated as safety issue: No ]
Circadian phase as ascertained through salivary melatonin concentrations
Same as current
Complete list of historical versions of study NCT01119365 on ClinicalTrials.gov Archive Site
Alertness [ Time Frame: 1 hour ] [ Designated as safety issue: No ]
Alertness as assessed through change in brain wave (electroencephalographic, EEG) activity, questionnaires, and objective testing
Same as current
Not Provided
Not Provided
 
Bright Light as a Countermeasure for Circadian Desynchrony
Bright Light as a Countermeasure for Circadian Desynchrony

Light is the primary means by which the internal circadian clock remains aligned ("entrained") with the external world. Misalignment of this internal clock can occur during situations such as shift work and jet travel across multiple time zones (jet lag). The purpose of this study is to examine the parameters of light and how they affect entrainment of the clock.

Not Provided
Interventional
Not Provided
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Basic Science
Healthy
Other: Bright light
Bright (1000 lux) light
Experimental: Light
Bright light
Intervention: Other: Bright light

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
80
June 2016
January 2016   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Good health
  • Normal hearing

Exclusion Criteria:

  • Sleep disorder
  • Extreme chronotype
  • Regular smoker
  • Depression
  • Alcohol abuse
  • Illegal drug use
Both
18 Years to 35 Years
Yes
Contact: Ban Ku 650-493-5000 ext 61971 banku@gmail.com
United States
 
NCT01119365
10165
No
Jamie M. Zeitzer, Ph.D., VA Palo Alto Health Care System
VA Palo Alto Health Care System
  • Stanford University
  • Palo Alto Institute for Research and Education, Inc
Principal Investigator: Jamie M Zeitzer, PhD Stanford University/VAPAHCS
VA Palo Alto Health Care System
December 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP