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Completed

NCT Number: NCT01938937

The Effect of Acute Transcranial Bright Light on Anxiety Symptoms

The purpose of this study is to determine if transcranially administered bright light has acute effect on anxiety symptoms.

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Key information

Conditions

Anxiety Anxiety Disorders Mental Disorders

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Oulu University

Oulu, 90014, Finland

About this study

Subjects (n=30) with anxiety symptoms will be recruited into the study. To be included into the study, subjects have to get at least seven points in BAI(Becks Anxiety Inventory). At the beginning of the study subject will be randomly assigned to 12 minutes of acute transcranial bright light or placebo exposure group. Anxiety symptoms will be measured using Spielberger State-Trait Anxiety Inventory (STAI, form Y1)self-rating questionnaire just before and 10 and 110 minutes after the experiment.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subject can read and understand the study protocol
  • The written informed consent is obtained from subject
  • Subject's BAI total score >= 7

Exclusion criteria

  • Subject has a lifetime psychotic disorder
  • Subject abuses substance or has a dependence
  • Subject has had suicidal idealization during the past month
  • Subject use psychotropic medications
  • Subject has unstable somatic disease
  • Subject has used bright-light therapy for the current episode
  • Subject is pregnant
  • Subject is a relative of a member of research team
  • Subject has used transcranial light treatment

Treatment and study plan

Transcranial bright light device

Device

Other names: Valkee npt 1100

Transcranial sham device

Device

Other names: Valkee npt 1100

Primary outcomes

  1. Change in total score of STAI-Y1

    Time frame: just before exposure, 10 minutes and 110 minutes after the exposure

    STAI-Y1 (Spielberger State-Trait Anxiety Inventory, form Y1)

Sponsors and collaborators

Lead sponsor

University of Oulu

Other

Collaborators

  • Valkee Oy

Registry information

Important dates

Study start
2012
Primary completion
2014
Study completion
2014
First posted
Sep 10, 2013
Registry last updated
Feb 26, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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