Enhancement of Cognitive Behavioral therapy for anxiety disorders and posttraumatic stress disorder by bright light exposure

Enhancement of Cognitive Behavioral therapy for anxiety disorders and posttraumatic stress disorder by bright light exposure - Enhancement of CBT for anxiety disorders and PTSD by bright light

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000023206

Enrollment

Registered

2016-07-17

Start date

2016-07-19

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

anxiety disorders and PTSD

Interventions

Intervention: Bright-light ME (8,000 lx)

30-45 min/week

Total 8 times (2 months). Sham: TWINBIRD LK-H345 (sham: 800 lx)

30-45 min/week: Total 8 times (2 months).

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Meet a clinical criterion for anxiety disorders (Panic disorder, Social anxiety disorder, Agoraphobia, Specific phobia) or PTSD in DSM-5. Anxiety severity (STAI-S: Higher than 40).

Exclusion criteria

Exclusion criteria: 1) Comorbid psychiatric disorders met in DSM-5 criteria. 2) Physical disorder diagnoses associated with the anxiety disorders or PTSD. 3) Severe suicidal ideation (C-SSRS: not less than 3). 4) Severe depressive symptoms (MADRS-S: 30 and over). 5) Pregnancy. 6) Retinal diseases.

Design outcomes

Primary

Measure	Time frame
State Trait Anxiety Inventory (STAI)	—

Secondary

Measure	Time frame
36-item short form of the MOS Questionnaire: SF-36 WHO Disability Schedule 2.0 (WHODAS 2.0) Montgomery-Asberg Depression Rating Scale (MADRS-S) Pittsburgh Sleep Quality Index (PSQI) Columbia-Suicide Severity Rating Scale: C-SSRS Alcohol Use Disorder Identification Test: AUDIT functional neuroimaging (fMRI) Liebowitz Social Anxiety Scale: LSAS-SR Panic Disorder Severity Scale: PDSS-SR Mobility Inventory for Agoraphobia: MIA Severity Measure for Specific Phobia-Adult: SMSP-A Impact of Event Scale Revised: IES-R	—

Measure

Time frame

36-item short form of the MOS Questionnaire: SF-36 WHO Disability Schedule 2.0 (WHODAS 2.0) Montgomery-Asberg Depression Rating Scale (MADRS-S) Pittsburgh Sleep Quality Index (PSQI) Columbia-Suicide Severity Rating Scale: C-SSRS Alcohol Use Disorder Identification Test: AUDIT functional neuroimaging (fMRI) Liebowitz Social Anxiety Scale: LSAS-SR Panic Disorder Severity Scale: PDSS-SR Mobility Inventory for Agoraphobia: MIA Severity Measure for Specific Phobia-Adult: SMSP-A Impact of Event Scale Revised: IES-R

—

Countries

Japan

Contacts

Public ContactKenichi Kuriyama

Shiga University of Medical Science Department of Psychiatry

kenichik@belle.shiga-med.ac.jp077-548-2291

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026