NCT05917119

Brief Summary

Persistent daytime symptoms of sleepiness in individuals with obstructive sleep apnea (OSA) who are using Continuous Positive Airway Pressure (CPAP) are associated with adverse long term medical and functional outcomes. Supplementary exposure to bright light has beneficial effects on sleep quality and daytime vigilance in healthy individuals and it has been increasingly applied in a variety of sleep and neuropsychiatric conditions. This study will explore the role of Bright Light Therapy (BLT), a well-established non-pharmacological intervention for circadian disturbances, for the treatment of residual daytime symptoms of OSA which do not respond to CPAP. BLT will be delivered via therapy glasses in a cross-over design, where each participant will be exposed to active treatment and sham treatment (4 weeks in each arm) in a randomized order. The hypothesis is that participants will demonstrate improvements in the variables of interest during the four-week active treatment portion of the eight-week crossover study, compared to the four-week sham treatment portion.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
20mo left

Started Oct 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress48%
Oct 2024Dec 2027

First Submitted

Initial submission to the registry

June 14, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 23, 2023

Completed
1.3 years until next milestone

Study Start

First participant enrolled

October 26, 2024

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2027

Expected
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

January 9, 2026

Status Verified

January 1, 2026

Enrollment Period

2.6 years

First QC Date

June 14, 2023

Last Update Submit

January 7, 2026

Conditions

Keywords

Obstructive sleep apneaCPAPResidual daytime sleepinessDepressive symptoms

Outcome Measures

Primary Outcomes (2)

  • Change in Epworth sleepiness scale

    self report questionnaire assessing daytime drowsiness and tendency to fall asleep if inactive

    baseline, week 4 (end of treatment 1), week 8 (end of wash out), week 12 (end of treatment 2)

  • Change in QIDS score

    self report assessment of depressive symptoms severity

    baseline, week 4 (end of treatment 1), week 8 (end of wash out), week 12 (end of treatment 2)

Study Arms (2)

BLT

EXPERIMENTAL

Bright light therapy delivered via glasses

Other: BLT

s-BLT

SHAM COMPARATOR

Sham Bright light therapy

Other: s-BLT

Interventions

BLTOTHER

Bright light therapy delivered via glasses

Also known as: Bright light therapy-Active intervention
BLT
s-BLTOTHER

sham delivered with bright light therapy glasses to which a neutral density filter has been applied

Also known as: sham-Bright light therapy
s-BLT

Eligibility Criteria

Age40 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Documented diagnosis of OSA
  • Currently on CPAP or BiPAP for at least 3 months
  • with documented adherence (defined as wearing CPAP/BiPAP for \>6h/night on at least 75% of nights), and adequate control of sleep apnea, as indicated by an AHI of 10 or less when on CPAP
  • Excessive residual daytime sleepiness (Epworth score \> 10)
  • If taking alertness promoting medication, the investigators will require that they are on a stable dose for at least one month prior to entering the study and that they refrain from dose changes while participating in the study
  • If already prescribed BLT, subjects must not have used it for at least one month prior to participating

You may not qualify if:

  • Shift work
  • Travel across time zones in the past month
  • Narcolepsy
  • Regular hypnotics use
  • Decompensated congestive heart failure (CHF)
  • Primary central sleep apnea, needing O2 therapy via nasal cannula
  • Poorly controlled diabetes (HgA1c\>8%)
  • Active substance use disorder
  • Dementia
  • Untreated bipolar disorder
  • the investigators will consider individuals with a diagnosis of bipolar disorder who are currently in treatment and stable
  • Macular degeneration, recent lasik surgery (within 3 months)
  • Legally blind
  • Taking medication that will cause photosensitivity to blue-green light spectrum wavelength
  • Already using bright light therapy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA Pittsburgh Healthcare System University Drive Division, Pittsburgh, PA

Pittsburgh, Pennsylvania, 15240, United States

RECRUITING

MeSH Terms

Conditions

Sleep Apnea, ObstructiveDepression

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesBehavioral SymptomsBehavior

Study Officials

  • Isabella Soreca, MD

    VA Pittsburgh Healthcare System University Drive Division, Pittsburgh, PA

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Participants are not told which arm is active versus sham
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: single blind crossover design with randomized condition order
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 14, 2023

First Posted

June 23, 2023

Study Start

October 26, 2024

Primary Completion (Estimated)

May 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

January 9, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations