ClinicalTrials.gg
RecruitingNCT04557293Updated Nov 18, 2025

Effort-based Decision-making and CPAP Adherence

An interventional study of Continuous Positive Airway Pressure (CPAP) treatment in Obstructive Sleep Apnea and Adherence, sponsored by Istituti Clinici Scientifici Maugeri SpA. Recruiting at 1 site in Italy. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-11-18.

Sponsored by Istituti Clinici Scientifici Maugeri SpA · Not applicable, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Apr 2026, 6 months ago, but the record still lists the study as recruiting.
  • Started Mar 2021; still recruiting 5 years 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
64
Allocation
Non-randomized
Ages
18 Years to 80 Years
Sex
All
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Study summary

Obstructive sleep apnoea is the most common sleep disorder in general population, and is often associated with cognitive deficit, mood disorders, hypertension, diabetes mellitus, excessive daytime somnolence, nicturia and an increased cardiovascular and metabolic risk. The gold standard of treatment is Continuous Positive Airway Pressure (CPAP), but the adherence is often poor. The aim of our study is to investigate the effort based-decision making in patients with OSA, pre and post CPAP treatment, as a possible cause of poor adherence.

Read the detailed description

Obstructive sleep apnea is a very common disease in general population (24% males; 9% females), characterized by frequent partial or total upper-airway collapse, intermittent hypoxia, arousal from sleep, change in blood pressure, excessive daytime sleepiness, cardiovascular and metabolic diseases, psychological and cognitive consequences. The gold standard treatment is Continuous Positive Airway Pressure (CPAP), but the adherence is often poor. Poor therapy adherence might be partially explained by executive deficits, decreasing the ability to plan and pursue longsighted behaviors entailing immediate costs/efforts. We investigate the cognitive function, in particular effort based-decision making and the relationship with excessive daytime somnolence and other cognitive function in a group of OSA patients and in control group. We assess cognitive function in OSA patients at the diagnosis moment and after six months of CPAP use.

02

Conditions studied

  • Obstructive Sleep Apnea
  • Adherence

Keywords

  • apnoea
  • effort based decision making
  • rehabilitation
  • adherence
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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 64 is above the median of 52 across 1,472 interventional studies indexed under Sleep Apnea, Obstructive.

Browse Sleep Apnea, Obstructive studies →

Lead sponsor

Istituti Clinici Scientifici Maugeri SpA is the lead sponsor of 126 studies on the registry; 51 are open to participants now.

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

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • Age ≥ 18
  • AHI±15

Exclusion criteria

Exclusion Criteria:

  • ≥ 35 Kg/m2
  • \<24
  • Complex sleep apnoea
  • Sleep disorder
  • Psychiatric disorder
Terms in these criteria, in plain language(2)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

MMSE and MoCA

Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.

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Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
64 participants (estimated)

Study arms

  • Experimental
    CPAP Treatment

    Patients with OSA will undergo cognitive assessment before starting CPAP treatment and after six months of CPAP use.

    Device: Continuous Positive Airway Pressure (CPAP) treatment

  • No intervention
    Control Group

    We will enrol a control group of subjects without sleep disorders and comparable to OSA patients for age and schooling. Control group will undergo cognitive assessment.

Interventions

  • DeviceContinuous Positive Airway Pressure (CPAP) treatment

    Treatment of Obstructive sleep apnoea syndrome with CPAP

06

What researchers measure

Primary outcomes

  1. Memory

    Short and Long-term memory will be assessed with Digit span and California verbal learning test

    Time frame: Change will be assesd before starting CPAP and after six months of CPAP treatment

  2. Executive Function

    attentional and executive functioning will be assessed with Test of Attentional Performance (TAP)

    Time frame: Change will be assesd before starting CPAPT and after six months of CPAP treatment

  3. Planning

    Planning will be assessed with Tower of London

    Time frame: Change will be assesd before starting CPAPT and after six months of CPAP treatment

  4. Response inhibition

    Will be assessed with Test Go-nogo

    Time frame: Change will be assesd before starting CPAPT and after six months of CPAP treatment

  5. Efforth decision making

    Will be assesses with Rapid Serial Visual Presentation (RSVP)

    Time frame: Change will be assesd before starting CPAPT and after six months of CPAP treatment

Secondary outcomes

  1. Effect of CPAP treatment on memory

    Administration of Digit span and California verbal Learning test

    Time frame: After six month of CPAP use

  2. Effect of CPAP treatment on executive function

    Administration of Test attentional Performance

    Time frame: After six month of CPAP use

  3. Effect of CPAP on planning

    Adimnistration of Tower of London Test

    Time frame: After six month of CPAP use

  4. Effect of CPAP on Response inhibition

    administration of go no go Test

    Time frame: After six month of CPAP use

  5. Effect of CPAP on effort decision making

    Administration of Rapid Serial Visual Presentation (RSVP) test

    Time frame: After six month of CPAP use

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Study locations

1 of 1 sites recruiting
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References and documents

Publications

  • Patil SP, Ayappa IA, Caples SM, Kimoff RJ, Patel SR, Harrod CG. Treatment of Adult Obstructive Sleep Apnea with Positive Airway Pressure: An American Academy of Sleep Medicine Clinical Practice Guideline. J Clin Sleep Med. 2019 Feb 15;15(2):335-343. doi: 10.5664/jcsm.7640. PubMed 30736887 ↗
  • Canessa N, Castronovo V, Cappa SF, Aloia MS, Marelli S, Falini A, Alemanno F, Ferini-Strambi L. Obstructive sleep apnea: brain structural changes and neurocognitive function before and after treatment. Am J Respir Crit Care Med. 2011 May 15;183(10):1419-26. doi: 10.1164/rccm.201005-0693OC. Epub 2010 Oct 29. PubMed 21037021 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 18, 2025, 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
NCT04557293
Collaborators
Istituto Universitario di Studi Superiori Pavia
Responsible party
Sponsor
First posted
Sep 21, 2020
Start date
Mar 10, 2021
Primary completion
Apr 30, 2026 (estimated)
Completion
Apr 30, 2026 (estimated)
Last update
Nov 18, 2025

Study contacts

Nicola Canessa, PhD
Contact
nicola.canessa@icsmaugeri.it
+39 0382 375845
Nicola Canessa, PhD
principal investigator · IRCCS Istituti Clinici Scientifici Maugeri - Scuola superiore IUSS Pavia

Oversight

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

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