NCT06832007

Brief Summary

Opioid use disorder (OUD) is a chronic relapsing disorder and is well-known for its high-risk rate of overdoses and death. In OUD, sleep and circadian disruptions are highly prevalent, interfere with opioid maintenance treatment outcomes and increase the risk of relapse. So far, commonly used pharmacological sleep treatments fail to improve sleep or decrease illicit drug use in OUD. Thus, there is an urgent need to fill this research gap. Previous work showed that OUD patients who were receiving opioid agonist treatment (MOUD+) exhibited greater irregularity of sleep-wake cycle. In OUD patients, sleep-wake irregularity was associated with years of heroin use and low light exposure. Bright light therapy (BLT) is a very promising circadian/sleep intervention for several sleep, psychiatric and neurological disorders. BLT improved circadian, sleep outcomes and negative mood. In a pilot study, BLT improved objective and subjective sleep in patients with alcohol use disorder. Here investigators proposed an intervention study for MOUD+ patients to determine effects of BLT as an adjunct treatment on sleep and circadian outcomes including endogenous circadian rhythm, rest-activity rhythm and sleep neurophysiology (Primary objectives); and to determine effects of BLT on brain function and on clinical outcomes including negative affect, craving and illicit drug use and whether changes in sleep and circadian rhythm mediate the BLT effect on brain recovery and clinical outcomes (Secondary objectives). Fifty MOUD+ will be assigned either to bright light or to dim light group for 2 weeks. The groups will be matched for age, sex, race and OUD medication (Methadone vs Buprenorphine). The study will run throughout the year such that it occurs during all seasons. Light exposure will be measured with light sensor for additional control. All MOUD+ participants will have a daily 30-min light exposure (bright or dim blue light) in the morning after their habitual wake-up time and will be asked to avoid evening light before bed. Dim light melatonin onset, accelerometer, sleep EEG and questionnaires will be used to measure objective and subjective sleep and circadian outcomes. For brain function, cue-reactivity task will be used to assess brain activation during drug craving. Resting state functional connectivity and brain state dynamics will be assessed by rsfMRI. Mood, opiate craving and illicit drug use will be assessed. All measures will be repeated before and after the treatment. Investigators expect that BLT would normalize sleep and circadian outcomes, attenuate impairments in brain functions and result in better clinical outcomes. If successful, light therapy will provide add-on benefits to opioid agonist therapy and facilitate OUD recovery process.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
105

participants targeted

Target at P50-P75 for not_applicable

Timeline
29mo left

Started Sep 2025

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 Progress22%
Sep 2025Sep 2028

First Submitted

Initial submission to the registry

February 6, 2025

Completed
12 days until next milestone

First Posted

Study publicly available on registry

February 18, 2025

Completed
7 months until next milestone

Study Start

First participant enrolled

September 6, 2025

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 16, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 16, 2028

Last Updated

October 20, 2025

Status Verified

October 1, 2025

Enrollment Period

3 years

First QC Date

February 6, 2025

Last Update Submit

October 16, 2025

Conditions

Keywords

opioid use disordersleepcircadian rhythmsfMRI research

Outcome Measures

Primary Outcomes (7)

  • Dim light melatonin onset (DLMO)

    DLMO is assessed for endogenous circadian phase.Participants will be asked to remain awake in dim light \< 5 lux. Salivary melatonin sample will be collected hourly and start 5h before habitual bedtime. Melatonin concentration will be later radioimmunoassayed. DLMO will be calculated as the time when melatonin concentration exceeds and remains above 4 pg/mL.

    the day directly before and after the intervention

  • melatonin metabolites level

    Participants will be asked to collect their first morning urine void (overnight urine) upon waking. Urinary metabolite of melatonin 6-sulphatoxymelatonin (aMT6s) will be quantified and normalized to urinary creatinine concentrations to account for variations in urine concentration.

    the day directly before and after the intervention

  • Sleep-wake regularity

    To record rest-activity/sleep-wake patterns, participants are asked to wear a triaxial accelerometer placed on the non-dominant wrist continuously throughout the study.

    From the enrollment to the end of the treatment at 24 days

  • Total sleep duration

    total sleep duration (hours) will be measured by sleep EEG. Participants will be asked to wear a wireless sleep monitor device during sleep in their home environment.

    From the enrollment to the end of the treatment at 24 days; 2-3 nights per week

  • N3 sleep

    N3 sleep (hours) will be measured by sleep EEG. Participants will be asked to wear a wireless sleep monitor device during sleep in their home environment.

    From the enrollment to the end of the treatment at 24 days; 2-3 nights per week

  • REM sleep

    REM sleep (hours) will be measured by sleep EEG. Participants will be asked to wear a wireless sleep monitor device during sleep in their home environment.

    From the enrollment to the end of the treatment at 24 days; 2-3 nights per week

  • sleep spindle

    Amount of sleep spindle will be measured by sleep EEG. Participants will be asked to wear a wireless sleep monitor device during sleep in their home environment.

    From the enrollment to the end of the treatment at 24 days; 2-3 nights per week

Secondary Outcomes (3)

  • brain signiture of craving measured by cue reactivity task

    the day prior to the intervention and the day after the intervention

  • brain functions during resting state

    the day before and after light intervention

  • Ecological momentary assessment (EMA)

    From the enrollment to the end of the treatment at 24 days

Other Outcomes (1)

  • post-illumination pupil response

    study visit prior to the treatment

Study Arms (3)

Experimental light

EXPERIMENTAL

MOUD participants

Device: AYO light glasses (experimental)

Comparison light

ACTIVE COMPARATOR

MOUD participants

Device: AYO light glasses (comparator)

Healthy control

NO INTERVENTION

Interventions

OUD patients are asked to wear AYO light therapy glasses (wavelength 470nm ± 2nm, irradiance 250 μW/cm2 or approx.1500 m-EDI) daily for 30 min after habitual wake-up times for two weeks.

Experimental light

The comparison group will wear the same AYO glasses but with lower intensity (1% light intensity) compared to the experimental group. This group will also self-administer 30 min of light from commercially available light glasses each morning for two weeks

Comparison light

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • All Participants
  • Between 18 and 60 years old
  • Fluent in English
  • Able to provide written informed consent
  • OUD
  • DSM-5 diagnosis of an OUD.
  • ≥12 months of lifetime opioid use
  • Positive on urine drug screen for buprenorphine or methadone
  • Receiving opioid agonist therapy for OUD (e.g., methadone or buprenorphine) with a stable dose for the past month. Must have been stabilized on OMT medication, since the increasing of doses during induction phase might interfere with outcomes and unstable patients might experience strong withdrawal symptoms in the morning which makes them unsuitable for a home-based BLT.

You may not qualify if:

  • All Participants
  • Head trauma with loss of consciousness for more than 30 minutes as determined by medical history.
  • history of seizures/epilepsy.
  • Pregnant and/or currently breast-feeding.
  • Presence of ferromagnetic objects in the body that are contraindicated for MRI or fear of enclosed spaces.
  • Eye disease including disease of the anterior and posterior segment of the eye, cataracts, retinopathy, glaucoma, amblyopia, scotoma, color or night blindness, corneal pathologies, macular degeneration, or retinitis pigmentosa reported by history or identified by eye exam
  • History of eye surgery
  • Chronic migraine triggered by bright light
  • worked night shift or traveled across\>2 time zones in the past month
  • OUD
  • diagnosis of substance use disorder other than for opioids that was deemed to be primary
  • lifetime diagnosis of schizophrenia, bipolar disorder, or suicidality.
  • History of light treatment
  • Unstable dose of psychiatric medication (hypnotics, sleep aids, and antidepressants must be stable for 30 days before and during the study)
  • Current or past DSM-IV or DSM-5 diagnosis of a psychiatric disorder including substance use disorder (except for nicotine/caffeine).
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Alabama at Birmingham

Birmingham, Alabama, 35294, United States

RECRUITING

MeSH Terms

Conditions

Opioid-Related Disorders

Condition Hierarchy (Ancestors)

Narcotic-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Central Study Contacts

Rui Zhang, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

February 6, 2025

First Posted

February 18, 2025

Study Start

September 6, 2025

Primary Completion (Estimated)

September 16, 2028

Study Completion (Estimated)

September 16, 2028

Last Updated

October 20, 2025

Record last verified: 2025-10

Locations