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Bright Light: A Novel Treatment for Anxiety

NCT01064700 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 33

Last updated 2021-04-28

No results posted yet for this study

Summary

The primary aim of this research was to examine the influence of bright light on anxiety in high-anxious young adults. In an acute exposure study, participants were randomly assigned to 45 min of either (1) bright light (3,000 lux) or (2) a placebo inactivated negative ion generator. Treatments were initiated ≤1 hr after awakening. At 10 min before and 30 min after the treatments, state anxiety, mood, and blood pressure were assessed.

Following the acute exposure study, participants performed a 5-week study. Following a a 1-week baseline, participants were randomly assigned to four weeks of daily exposure to either (1) bright light (45 min/day; 3,000 lux) or (2) placebo inactivated negative ion generator, which were initiated ≤1 hr after awakening. Before and after the experiment, clinical ratings were conducted with the Hamilton Anxiety Scale, the Hamilton Depression Scale, and the Clinical Global Impressions scale (CGI). Following baseline, and following each week of treatment, blood pressure, as well as questionnaires for state anxiety, depression, mood, sleep, and side effects were assessed.

Conditions

Interventions

DEVICE

Litebook Bright Light Box

Four weeks of daily exposure to bright light (3,000 lux) for 45 min/day, beginning within 60 min of arising.

DEVICE

Litebook inactivated negation ion generator (the placebo)

Four weeks of daily exposure to inactivated negative ion generator for 45 min/day, beginning within 60 min of arising

Sponsors & Collaborators

  • Liteboook Company

    collaborator UNKNOWN

  • University of South Carolina

    lead OTHER

Principal Investigators

  • Shawn D Youngstedt · University of Southern California

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
35 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2006-10-31
Primary Completion
2007-12-31
Completion
2007-12-31

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01064700 on ClinicalTrials.gov