NCT05156112

Brief Summary

Substance use disorder (SUD) and posttraumatic stress disorder (PTSD) frequently co-occur and having both disorders is associated with greater psychological and functional impairment than having either disorder alone. This is especially true in residential settings where both disorders are more severe than outpatient settings. Obstructive sleep apnea (OSA) is highly comorbid with both disorders and untreated OSA is associated with worse functional impairment across multiple domains, worse quality of life, worse PTSD, higher suicidal ideation, and higher substance use and relapse rates. Treating OSA with evidence-based positive airway pressure (PAP) in Veterans with SUD/PTSD on a residential unit is a logical way to maximize treatment adherence and treatment outcomes. This study compares OSA treatment while on a SUD/PTSD residential unit to a waitlist control group. The investigators hypothesize that treating OSA on the residential unit, compared to the waitlist control, will have better functional, SUD, and PTSD outcomes.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
194

participants targeted

Target at P75+ for not_applicable

Timeline
13mo left

Started Jan 2023

Longer than P75 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress76%
Jan 2023May 2027

First Submitted

Initial submission to the registry

November 30, 2021

Completed
14 days until next milestone

First Posted

Study publicly available on registry

December 14, 2021

Completed
1.1 years until next milestone

Study Start

First participant enrolled

January 2, 2023

Completed
4.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2027

Last Updated

November 3, 2025

Status Verified

October 1, 2025

Enrollment Period

4.4 years

First QC Date

November 30, 2021

Last Update Submit

October 30, 2025

Conditions

Keywords

VeteranPTSDObstructive Sleep ApneaSubstance Use DisorderPAP TreatmentResidential Treatment

Outcome Measures

Primary Outcomes (4)

  • Change in WHO Disability Assessment Schedule 2.0 (WHODAS 2.0)

    Change in functional impairment across multiple domains. The WHODAS 2.0 is a 36-item questionnaire that assess functional impairment across 5 subscales: cognitions (understanding and communicating), mobility, self-care getting along with others, household responsibilities, work responsibilities, and community participation.

    Baseline, Post-SARRTP Unit (28 Days), 3-Month Follow up (90 Days)

  • Change in Timeline Follow-Back (TLFB) % days drinking/using in last 90 days

    Examining change in percentage of substance use in the past 90 days.

    Baseline, 3-Month Follow up (90 Days)

  • Change in Clinician Administered PTSD Scale (CAPS-5)

    Change in PTSD symptom severity will be assessed using CAPS-5 in the past month. The CAPS-5 is a 30-item structured interview.

    Baseline, Post-SARRTP Unit (28 Days), 3-Month Follow up (90 Days)

  • Change in The Columbia-Suicide Severity Rating Scale (C-SSRS)

    Change in suicidal ideation severity using the C-SSRS. The C-SSRS is a standardized 8-point clinician-administered suicidal rating system designed to track suicidal adverse events across a treatment trial and covering the wide spectrum of suicidality

    Baseline, Post-SARRTP Unit (28 Days), 3-Month Follow up (90 Days)

Secondary Outcomes (1)

  • PAP adherence rates

    3-Month Follow up (90 Days)

Study Arms (2)

PAP Treatment on SARRTP Unit

EXPERIMENTAL

Veterans will receive Positive Airway Pressure device while on the 28-day SARRTP Unit.

Device: Positive Airway Pressure Device

Waitlist Control

NO INTERVENTION

Veterans will not receive PAP device until after 3-month Follow Up.

Interventions

Each PAP treatment initiation meeting will include 1) mask fitting; 2) psycho-education to what to expect and reviewing PAP machine problem solving; and 3) setting up correct PAP treatment (e.g., auto PAP or in rare conditions, bi-level PAP).

Also known as: PAP; CPAP; Auto-PAP
PAP Treatment on SARRTP Unit

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • a Veteran of the U.S. military or Reserve/National Guard member
  • at least 18 years of age
  • have an AHI 5 per hour
  • experienced trauma that occurred in childhood or adulthood; at least one month post-trauma
  • have current DSM-5 diagnoses of SUD via SCID-SUD module with a minimum 20 days of substance use in the last 90 days (Timeline Follow-back)
  • Full PTSD diagnosis via clinician administered PTSD scale
  • are literate in English
  • are on the PTSD track of the SARRTP unit
  • are capable of giving informed consent

You may not qualify if:

  • have central sleep apnea (AHI \>=5 and \> 50% central apneas)
  • arrives on the SARRTP unit already using a PAP device (Veteran's previously diagnosed with OSA, but not using PAP therapy will be eligible)
  • the SARRTP medical staff advises against the study based on medical history and physical examination; d) history of severe cognitive impairment (via MOCA \< 26)
  • history of psychosis or mania independent of substance use will be excluded because the presence of these disorders can impede therapy progress

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA San Diego Healthcare System, San Diego, CA

San Diego, California, 92161-0002, United States

RECRUITING

MeSH Terms

Conditions

Stress Disorders, Post-TraumaticSleep Apnea, ObstructiveSubstance-Related Disorders

Interventions

Continuous Positive Airway Pressure

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental DisordersSleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesChemically-Induced Disorders

Intervention Hierarchy (Ancestors)

Positive-Pressure RespirationRespiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Study Officials

  • Peter Colvonen, PhD

    VA San Diego Healthcare System, San Diego, CA

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Peter Colvonen, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
All assessors will be blinded to treatment condition to minimize bias in outcome assessments
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The investigators aim to examine the effects of PAP treatment on Veterans with PTSD and SUD on a 28-day residential unit. The investigators are proposing a randomized controlled study comparing two groups: an early intervention PAP treatment group receiving PAP treatment while on the residential unit, compared to a waitlist control group who will receive PAP treatment at 3-months post-discharge follow-up.
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 30, 2021

First Posted

December 14, 2021

Study Start

January 2, 2023

Primary Completion (Estimated)

May 31, 2027

Study Completion (Estimated)

May 31, 2027

Last Updated

November 3, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations