NCT05457127

Brief Summary

Serious mental illnesses (SMI) like schizophrenia and bipolar disorder are two of the most disabling and costly chronic illnesses worldwide. A high proportion of adults with schizophrenia and bipolar disorder have sleep disorders, like obstructive sleep apnea (OSA), but tend to be underdiagnosed and undertreated compared to the general population. This study aims to examine feasibility, acceptance, and impact of OSA treatment and how it affects cognitive function in people with SMI.

Trial Health

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Trial Health Score

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

Enrollment
300

participants targeted

Target at P75+ for not_applicable

Timeline
4mo left

Started Jan 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet 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 Progress79%
Jan 2025Nov 2026

First Submitted

Initial submission to the registry

June 22, 2022

Completed
21 days until next milestone

First Posted

Study publicly available on registry

July 13, 2022

Completed
2.5 years until next milestone

Study Start

First participant enrolled

January 1, 2025

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2026

Last Updated

July 10, 2024

Status Verified

July 1, 2024

Enrollment Period

1.8 years

First QC Date

June 22, 2022

Last Update Submit

July 8, 2024

Conditions

Keywords

Serious mental illnessagingpositive airway pressure

Outcome Measures

Primary Outcomes (5)

  • Acceptance of PAP trial

    Acceptance of PAP trial (based on post-adherence program survey taken after the completion of the 4 sessions.) Acceptability will be rated by % individuals who rate high level of satisfaction with the intervention.

    3 months

  • OSA self-efficacy using the SEMSA

    OSA self-efficacy will be assessed using the Self-Efficacy Measure for Sleep Apnea (SEMSA). The SEMSA is a 26-item, self-administered questionnaire. The SEMSA has 3 categories: perceived risk, outcome expectancies, and treatment self-efficacy. In the perceived risk category, individuals answer questions about their perceived vulnerability to health risks. In the outcome expectancies, individuals answer questions regarding the potential behavior to reduce those risks, and in the treatment self-efficacy, the participant rates the level of validity of the statements on a 4-point scale regarding their perceived ability to perform behavior. Each of the 3 categories has a 4-point ordinal scale (1= irrelevant, 4 = extremely relevant) ranging from very low to very high. The mean of the 3 subscales are calculated. Higher scores indicate greater perceived self-efficacy, perceived response efficacy, and higher perceived susceptibility.

    3 months

  • PAP usage

    PAP usage will be assessed using mean hours/night - which will be obtained from the PAP machine data.

    3 months

  • Cognitive Functioning

    Cognitive functioning will be measured with the MATRICS Cognitive Consensus Battery (MCCB).159 The MCCB assesses six cognitive domains (attention/vigilance\*\*, verbal learning/memory\*\*, processing speed, working memory, auditory learning/memory, and reasoning), and has excellent test-retest reliability (ICC = 0.88) with minimal practice effects.159, 160 Executive functioning is the one cognitive domain that is less ideally covered within the MCCB. The closest MCCB domain, reasoning, is measured by a single timed-mazes task that can be readily affected by non-executive functions. We use subtests from the Delis-Kaplan Executive Functioning System (D-KEFS) battery161 \[Color Word Interference, Letter Number Sequencing, and phonemic (FAS) and semantic (Animals) fluency\] to assess Executive Functioning\*. We have successfully employed these measures as a supplement to the MCCB in multiple prior studies in PwS.

    3 months

  • Monitoring Slow Wave Sleep and Sleep Spindle Density

    Slow wave sleep -based on proportion/duration of Slow wave activity on overnight sleep EEG recordings. Sleep Spindle density - based on sleep spindle density measured during non-REM sleep on overnight sleep EEG recordings

    3 months

Study Arms (1)

Automatic Positive Airway Pressure (APAP) device

EXPERIMENTAL
Device: Automatic Positive Airway Pressure (APAP)

Interventions

If eligible, participants will be given a clinical Automatic Positive Airway Pressure (APAP) device for up to 3 months, while they are waiting for their clinical evaluation from a sleep physician. The APAP device will we will be using is the ResMed Airsense 11 Autoset. APAP is a smart positive airway pressure (PAP) device, where the pressure changes as needed to provide optimal pressure to splint the upper airway. Dr. Lee and Dr. Schmickl will oversee management of the device. During the first month of APAP use, individuals will participate in weekly phone calls or in-person visits to ensure optimal adherence and troubleshoot any issues (improper mask fitting, discomfort, etc) that may arise.

Automatic Positive Airway Pressure (APAP) device

Eligibility Criteria

Age40 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Control participants:
  • lifetime absence of major psychiatric illness
  • to 70 years old
  • be at risk for or have a diagnosis of obstructive sleep apnea
  • For participants with serious mental illness:
  • diagnosis of schizophrenia, schizoaffective disorder, or bipolar disorder
  • must not be conservatized
  • years old
  • be at risk or have a diagnosis of obstructive sleep apnea.

You may not qualify if:

  • DSM-IV-TR diagnosis of active alcohol or other substance abuse or dependence in the 3 months preceding enrollment. This will be self-report.
  • Diagnosis of dementia, mental retardation, or other neurological or medical conditions known to affect neurophysiologic or neurocognitive functioning, or autoimmune disease
  • Other major DSM-IV-TR Axis I Disorder
  • Medical problems that interfere with a participant's ability to complete the assessments
  • Plans to move out of the San Diego county area within the following 6 months
  • Diagnosis of OSA and currently receiving APAP, CPAP, or any treatment from a physician.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UCSD

La Jolla, California, 92037, United States

Location

MeSH Terms

Conditions

Psychotic DisordersSchizophreniaBipolar Disorder

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental DisordersBipolar and Related DisordersMood Disorders

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

June 22, 2022

First Posted

July 13, 2022

Study Start

January 1, 2025

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

November 1, 2026

Last Updated

July 10, 2024

Record last verified: 2024-07

Locations