ClinicalTrials.gg
RecruitingNCT06698809STIL TIREDUpdated Jan 14, 2026

Obstructive Sleep Apnea Therapeutic Intervention for REsiDual Sleepiness

An interventional study of Active tPBM in Obstructive Sleep Apnea and Sleepiness, sponsored by NYU Langone Health. Recruiting at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-01-14.

Sponsored by NYU Langone Health · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Jan 2026; still recruiting 10 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
22
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

Obstructive sleep apnea (OSA) is a sleep disorder that is commonly treated using positive airway pressure, yet 50% of patients still experience residual sleepiness after successful therapy. A potential neuromodulation strategy that can decrease residual sleepiness is transcranial photobiomodulation (tPBM). tPBM is a neuromodulatory treatment that uses red and/or near infrared light to penetrate the cortex and can alter both cerebral metabolism and blood flow. However, this potential has never been explored before directly in sleep disordered individuals. This project aims to explore the effect of tPBM on sleepiness and understand the potential neural mechanism of tPBM in OSA. The short-term goal of this project is to collect pilot data, which is the first of its kind, and suggest tPBM as a potential modulator of sleepiness in OSA.

02

Conditions studied

  • Obstructive Sleep Apnea
  • Sleepiness

Keywords

  • Transcranial Photobiomodulation
03

In context

Sleep Apnea, Obstructive

2,240 studies on the registry are indexed under Sleep Apnea, Obstructive; 475 are open to participants now.

This study's planned enrollment of 22 is below the median of 52 across 1,472 interventional studies indexed under Sleep Apnea, Obstructive.

Browse Sleep Apnea, Obstructive studies →

Lead sponsor

NYU Langone Health is the lead sponsor of 1,430 studies on the registry; 258 are open to participants now.

Of its 235 completed or terminated interventional studies of FDA-regulated products, 197 (84%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Cognitively normal (Telephone Interview for Cognitive Status (TiCS) ≥29))
  • Moderate - severe OSA
  • Currently on therapy for OSA and has received treatment for OSA for at least 3 months.
  • Sustained compliance with continuous positive airway pressure (CPAP), which means using the machine at least 4 hours per night for five nights a week.
  • Epworth Sleepiness Score (ESS) greater than or equal to 8 or excess daytime sleepiness as defined by the Functional Outcome Sleep Questionnaire or clinical complaint.

Exclusion criteria

Exclusion Criteria:

  • Documented diagnosis of chronic insomnia, or sleep onset insomnia based on Insomnia Severity Index (ISI)
  • Documented diagnosis of circadian rhythm disorder
  • Any current use of supplemental oxygen
  • Other sleep-related breathing disorders (central sleep apnea, etc.) based on American Academy of Sleep Medicine (AASM) criteria
  • Current shift work involving night shift (regular work between 12am and 6am or night shift) within the past 6 months
  • Anticipated scheduled bariatric surgery within the next 3 months
  • Chronic regular (> 2 nights per week) use of any sedative, stimulant, neuroleptic drugs, or other medications limiting validity of cognitive tests. This includes regular use of alcohol or marijuana for sleep. Melatonin is ok.
  • Diagnosis of uncontrolled psychiatric disease in the last six months, and/or history of schizophrenia or bipolar disorder. Controlled conditions will include major depressive disorder, panic disorder, schizoaffective disorder, generalized anxiety disorder, Obsessive-compulsive disorder (OCD), substance use disorders, and alcohol abuse/dependence. Personality disorders and neurodevelopmental disorders (e.g. autism, ADHD) are allowed if cognition is within normal limits.
  • Taking methylphenidate for ADHD.
  • Presence of other critical comorbid conditions that would lead to inability to complete the study protocol (including follow-up for 2 years), or that would affect cognition (e.g. endocrine or hematological conditions).
  • Chronic regular (> 2 nights per week) use of stimulant if unable to complete a prior to MRI.
  • Does not have a regular sleeping environment (i.e., sleeps in a different setting > 2 nights per week).
  • Currently pregnant or planning to become pregnant.
  • Prior diagnosis of a Central nervous system (CNS) disease, such as multiple sclerosis, stroke, Parkinson's disease, Alzheimer's disease, epilepsy, a loss of consciousness > 24 hours, or traumatic brain injury as identified by the Cumulative Illness Rating Scale for Geriatrics (CIRS). Participants who are diagnosed with Mild cognitive impairment (MCI) or Alzheimer's disease based on neuropsychological testing will be excluded. Delirium in the last 12 months.
  • Near-miss or prior automobile accident "due to sleepiness" within the past 12 months.
  • Employed as a commercial driver during the study (for example, bus drivers, train engineers, airplane pilots) or construction worker.
  • Past intolerance or to tPBM.
  • Significant skin conditions (i.e., hemangioma, scleroderma, psoriasis, rash, open wound or tattoo) on the subject's scalp that are found in the area of the procedure sites.
  • Any use of light-activated drugs (photodynamic therapy) within 14 days prior to study enrollment.
  • Any type of implants in the head, whose functioning might be affected by tPBM (e.g., stent, clipped aneurysm, embolized arteriovenous malformation (AVM), implantable shunt - Hakim valve).
  • Failure to meet standard MRI safety requirements (e.g., claustrophobia, non-removable piercings, implanted medical devices, other non-removable metals) as determined by the MRI Safety Checklist.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
22 participants (estimated)

Study arms

  • Experimental
    Participants with Moderate-to-Severe OSA

    Participants will receive tPBM treatment and sham for approximately 12 minutes and complete assessments. Participants have the choice to participate in an optional follow-up 1 week post-initial visit, in which they will receive tPBM treatment for approximately 11-12 minutes and complete assessments at a different time of day.

    Device: Active tPBM

Interventions

  • DeviceActive tPBM

    tPBM is a neuromodulatory treatment that uses red and/or near infrared light to penetrate the cortex and can alter both cerebral metabolism and blood flow. Subjects will receive treatment for approximately 12 minutes per treatment and sham.

06

What researchers measure

Primary outcomes

  1. Percent Change in Cerebral Blood Flow

    Measured via MRI imaging.

    Time frame: Pre-Active tPBM Treatment, Post-Active tPBM Treatment (Day 1, approx. 11-12 minutes)

Secondary outcomes

  1. Change in Karolinska Sleepiness Scale (KSS) Score

    The KSS is a 1-item assessment of sleepiness in the 5 minutes prior to administration of the questionnaire. Participants rank their sleepiness on a scale from 1 (extremely alert) to 9 (very sleepy). The total score is the item ranking and ranges from 1-9; higher scores indicate greater sleepiness.

    Time frame: Pre-Active tPBM Treatment, Post-Active tPBM Treatment (Day 1, approx. 11-12 minutes)

  2. Change in Psychomotor Vigilance Task (PVT) Score

    The psychomotor vigilance task (PVT) is a computer-based test that measures how consistently someone responds to visual or auditory stimuli over 10 minutes. The participant presses a button in response to a digital signal on a computer screen. The test measures reaction time and the number of lapses, which are defined as response times longer than 500 milliseconds or failing to respond. The total score is calculated by subtracting the number of lapses and false starts from 100%. The result is a percentage that ranges from 100% for optimal performance to 0% for worst possible performance.

    Time frame: Pre-Active tPBM Treatment, Post-Active tPBM Treatment (Day 1, approx. 11-12 minutes)

  3. Change in Controlled Oral Word Association Test (COWAT) Score

    The COWAT is a verbal fluency test in which participants are asked to say as many words as possible from a given category and in a specified timeframe. The total score is the number of correct words named by the participant.

    Time frame: Pre-Active tPBM Treatment, Post-Active tPBM Treatment (Day 1, approx. 11-12 minutes)

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Study locations

1 of 1 sites recruiting
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References and documents

Individual participant data

Plan to share: Yes — The de-identified participant data from the final research dataset will be shared upon reasonable request beginning 9 to 36 months after publication or as required by a condition of awards or supporting agreements, provided the requesting investigator executes a data use agreement with NYU Langone Health. This instance of data sharing will also require separate IRB review as well as review from NYU Langone's Data Sharing Strategy Board (DSSB). Requests should be directed to: Naomi.Gaggi@nyulangone.org. The protocol and statistical analysis plan will be posted on Clinicaltrials.gov only as required by federal regulation or supporting awards and agreements.

Supporting information: Study protocol, Statistical analysis plan

Time frame: Beginning 9 months and ending 36 months following article publication or as required by a condition of awards and agreements supporting the research.

Access criteria: The investigator who proposed to use the data will be granted access upon reasonable request. Requests should be directed to Naomi.Gaggi@nyulangone.org. To gain access, data requestors will need to sign a data access agreement. This instance of data sharing will also require separate IRB review as well as review from NYU Langone's DSSB.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2026 (actual). Primary completion is estimated for Sep 2026, 7 months after the start.

Of 508 non-industry interventional studies with no phase under Sleep Apnea, Obstructive, half reached primary completion within 33 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 53. This study's planned 7 months is below that.

Counting every sponsor, half of 623 studies reached it within 27 months; a quarter within 12 and three quarters within 50.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 19, 2024
First posted
Nov 21, 2024
StartActual
Jan 12, 2026
Primary completionEst.
Sep 1, 2026
CompletionEst.
Oct 3, 2026
Last update
Jan 14, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 14, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06698809
Lead sponsor
NYU Langone Health
Collaborators
American Academy of Sleep Medicine
Responsible party
Sponsor
First posted
Nov 21, 2024
Start date
Jan 12, 2026
Primary completion
Sep 1, 2026 (estimated)
Completion
Oct 3, 2026 (estimated)
Last update
Jan 14, 2026

Study contacts

Naomi Gaggi
Contact
Naomi.Gaggi@nyulangone.org
(646) 754-2238
Jennifer Bernal
Contact
Jennifer.Bernal@nyulangone.org
(646) 754-2238
Naomi Gaggi
principal investigator · NYU Langone Health
Ricardo Osario
principal investigator · NYU Langone Health

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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