Effects of Mental Tasks on Breathing Patterns in Adults Using Chronic Opioids vs Non-opioid Users. (AWAKE)
Control of Ventilation During Wakefulness in Opioid vs. Non-opioid Patients
The goal of this observational study is to find out if using your brain for a mental task changes how you breathe. Researchers want to compare three groups of adults: people who take opioid pain medicine every day, people with sleep apnea, and healthy people with neither condition. The main questions this study aims to answer are:
- Does breathing change differently during mental tasks in people who take opioids, people with sleep apnea, and healthy controls?
- Is the connection between brain activity and breathing disrupted more in people who use chronic opioids or have OSA, compared with healthy controls, during periods of mental effort?
Researchers will compare the three groups to see if opioid use or sleep apnea makes breathing less steady, or weakens the link between the brain and breathing, when a person is concentrating on a task.
Participants will visit the UC San Diego Sleep Laboratory one time. During the visit, they will:
- Answer questions about sleep, opioid use, and sleep apnea risk.
- Have sensors placed on their skin and scalp to measure brain waves, breathing, and oxygen levels. This is the same kind of equipment used in a regular sleep study, and it does not hurt.
- Sit quietly and rest while their breathing and brain waves are recorded.
- Do a series of short mental tasks on a computer, tablet, or paper, testing things like memory, attention, and thinking speed, while their breathing and brain waves continue to be recorded.
No medicine or treatment will be given during the study, and no blood or other samples will be collected. This study only involves watching and measuring, not testing any treatment.
Studieoversigt
Status
Status
Betingelser
Betingelser
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
California
-
San Diego, California, Forenede Stater, 92037
- University of California San Diego
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria
All participants
- Able to provide informed consent
- Able to communicate in English, see/hear task stimuli (with usual corrective devices), follow multistep instructions, and complete a brief cognitive-task practice example
Opioid group
- Daily prescribed opioid use, under medical supervision, for chronic non-cancer pain, for ≥3 months
- Prescribed dose ≥20 MME/day (no upper limit)
- Stable dose for ≥2 weeks
OSA group
- Diagnosed OSA with AHI ≥15 events/hour (documented on a prior clinical sleep study)
Healthy control group
- No history of chronic prescribed opioid use
- No known history/diagnosis of OSA
- If a prior sleep study exists, AHI must be <10 events/hour within the past 3 years
Exclusion criteria
- Prisoners
- Pregnancy
- BMI <20 or >35
- Unable/unwilling to give informed consent or comply with study procedures
- Significant comorbidities of other organ systems (e.g., chronic kidney disease, CHF/active cardiac symptoms, cirrhosis, severe lung disease)
- Diseases affecting respiratory muscles or breathing control (neuromuscular, neurodegenerative, congenital)
- Psychiatric disease other than controlled mood disorders
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
|---|
|
Sund kontrolgruppe
|
|
Obstruktiv søvnapnø
|
|
Opioid Use
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Respiratory pattern changes during standardized cognitive load tasks
Tidsramme: 2 hours
|
2 hours
|
|
|
Respiratory variability/irregularity
Tidsramme: 2 hours
|
Measured from breathing signals (nasal pressure/airflow, thoracoabdominal effort belts, end-tidal CO2) during cognitive tasks vs. baseline
|
2 hours
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
EEG-respiratory coupling
Tidsramme: 2 hours
|
cortical-respiratory coupling - the degree of association between EEG activity and respiratory signal timing
|
2 hours
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Jeremy Orr, MD, UC San Diego
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 815022
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
- CSR
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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