Effect of blue-blocking glasses in bipolar disorder with sleep onset insomnia: a randomized, double-blind, placebo-controlled study

Effect of blue-blocking glasses in bipolar disorder with sleep onset insomnia: a randomized, double-blind, placebo-controlled study - Effect of blue-blocking glasses in bipolar disorder with sleep onset insomnia

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000028125

Enrollment

Registered

2017-07-07

Start date

2017-08-02

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

Bipolar disorder

Interventions

Wear blue light blocking glasses from 20:00 until bedtime every evening for two weeks. Wear placebo glasses (blocking only ultraviolet light) from 20:00 until bedtime every evening for two weeks.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, (DSM-V) diagnosis of bipolar disorders outpatient. Score of the Insomnia Severity Index is 8 points or more

Exclusion criteria

Exclusion criteria: Marked suicidal ideation. psychotic disorders, substance abuse, shift work

Design outcomes

Primary

Measure	Time frame
VAS (visual analogue mood scales)for assessment of sleep quality	—

Secondary

Measure	Time frame
Montgomery Asberg Depression Rating Scale Young Mania Rating Scale Clinical global impression sleep diary Insomnia Severity Index morning and evening question Actiwatch	—

Countries

Japan

Contacts

Public ContactEsaki Yuichi

Okehazama Hospital Medical office

esakiz@fujita-hu.ac.jp0562-97-1361

Outcome results

None listed

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