NCT06117579

Brief Summary

Sleep apnea-hypopnea syndrome is a sleep-related respiratory disorder characterized by partial or total interruptions in breathing during sleep. The majority of syndromes involve an obstructive mechanism (OSA), caused by a reduction in the caliber of the upper airway (UA), most often associated with hypotonia of the surrounding muscles, preventing air from entering the UA during inspiration. The clinical consequences of this syndrome are excessive fatigue and daytime sleepiness, which have a negative impact on the quality of life of patients. Despite the positive results on apnea-hypopnea index and daytime sleepiness of continuous positive airway pressure (today's reference treatment), its 3-year compliance rate (i.e 59.9% according to a study by Abdelghani et al points to the need to develop other associated therapies. Several studies have demonstrated the efficacy of physiotherapy, such as physical activity and oro-pharyngeal muscle strengthening, notably on the apnea-hypopnea index and daytime sleepiness measured by the Epworth scale. Few studies have investigated the effect of inspiratory muscle training (IMT), even though the use of the inspiratory musculature (i.e. the diaphragm) is a means of supplementing the peri-pharyngeal muscles, as it helps to maintain the permeability of the upper airways. Inspiratory muscle training (IMT) could therefore be considered as part of the physiotherapeutic management of the OSA. The heterogeneity of current results concerning IMT in OSA , but above all the lack of evidence that it is dangerous, means that new clinical studies could be carried out in an attempt to demonstrate its efficacy. Our research hypothesis is therefore as follows: Implementing an inspiratory muscle strengthening protocol in patients suffering from OSA can reduce daytime sleepiness.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
58

participants targeted

Target at P25-P50 for not_applicable

Timeline
8mo left

Started Jun 2024

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress72%
Jun 2024Jan 2027

First Submitted

Initial submission to the registry

October 31, 2023

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 7, 2023

Completed
8 months until next milestone

Study Start

First participant enrolled

June 26, 2024

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 25, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 25, 2027

Last Updated

December 30, 2025

Status Verified

December 1, 2025

Enrollment Period

2.3 years

First QC Date

October 31, 2023

Last Update Submit

December 22, 2025

Conditions

Keywords

Obstructive Sleep ApneaInspiratory muscle training

Outcome Measures

Primary Outcomes (1)

  • Change in Daytime sleepiness

    Change in daytime sleepiness measured by the Epworth Sleepiness Scale following the introduction of IMT combined with CPAP Epworth Sleepiness Scale ranged from 0 (it is unlikely that you are abnormally sleepy) to 24 (you are excessively sleepy and should consider seeking medical attention).

    12 weeks

Study Arms (2)

Inspiratory muscle training group

EXPERIMENTAL

Step 1: During the consultation to diagnose obstructive sleep disorder with the pulmonologist (following polysomnography) to set up continuous positive airway pressure (CPAP): * Introduction of CPAP * Epworth Sleepiness Scale (ESS) * Maximum Inspiratory Pressure (MIP) measurement * Explanation of exercise program and use of POWERBreathe Step 2: 6-week telephone follow-up with measurement of Epworth Sleepiness Scale (ESS) Step 3: Follow-up visit at 12 weeks after introduction of CPAP: * Review of CPAP implementation * Epworth Sleepiness Scale (ESS) * MIP measurement

Other: Inspiratory muscle training

Control group

NO INTERVENTION

Step 1: During the consultation to diagnose obstructive sleep disorder with the pulmonologist (following polysomnography) to set up continuous positive airway pressure (CPAP): * Introduction of CPAP * Epworth Sleepiness Scale (ESS) * Maximum Inspiratory Pressure (MIP) measurement Step 2: 6-week telephone follow-up with measurement of Epworth Sleepiness Scale (ESS) Step 3: Follow-up visit at 12 weeks after introduction of CPAP: * Review of CPAP implementation * Epworth Sleepiness Scale (ESS) * MIP measurement

Interventions

Description of a typical session: Session duration: between 12 and 20 minutes 3 cycles of 30 repetitions with 1 minute of break between each cycle. The patient should inhale as hard as possible against an inspiratory resistance generated by a valve device.

Inspiratory muscle training group

Eligibility Criteria

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

You may qualify if:

  • patients over 18 years of age with
  • OSA with an Apnea Hypopnea Index ≥ 5 requiring CPAP

You may not qualify if:

  • Sleep apnea of neurological or mixed origin,
  • Contraindication to or refusal of CPAP,
  • Cognitive disorders,
  • protected persons (under guardianship or curatorship),
  • persons under court protection,
  • persons not affiliated to a social security scheme
  • pregnant or breast-feeding women.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chu Orleans

Orléans, France

RECRUITING

Related Publications (6)

  • Chou KT, Tsai YL, Yeh WY, Chen YM, Huang N, Cheng HM. Risk of work-related injury in workers with obstructive sleep apnea: A systematic review and meta-analysis. J Sleep Res. 2022 Feb;31(1):e13446. doi: 10.1111/jsr.13446. Epub 2021 Aug 12.

    PMID: 34384138BACKGROUND
  • Sabil A, Bignard R, Gerves-Pinquie C, Philip P, Le Vaillant M, Trzepizur W, Meslier N, Gagnadoux F. Risk Factors for Sleepiness at the Wheel and Sleep-Related Car Accidents Among Patients with Obstructive Sleep Apnea: Data from the French Pays de la Loire Sleep Cohort. Nat Sci Sleep. 2021 Oct 5;13:1737-1746. doi: 10.2147/NSS.S328774. eCollection 2021.

    PMID: 34675722BACKGROUND
  • Peng J, Yuan Y, Zhao Y, Ren H. Effects of Exercise on Patients with Obstructive Sleep Apnea: A Systematic Review and Meta-Analysis. Int J Environ Res Public Health. 2022 Aug 31;19(17):10845. doi: 10.3390/ijerph191710845.

    PMID: 36078558BACKGROUND
  • Abdelghani A, Slama S, Hayouni A, Harrabi I, Mezghanni S, Garrouche A, Klabi N, Benzarti M, Jerray M. [Acceptance and long-term compliance to continuous positive airway pressure in obstructive sleep apnea. A prospective study on 72 patients treated between 2004 and 2007]. Rev Pneumol Clin. 2009 Jun;65(3):147-52. doi: 10.1016/j.pneumo.2009.03.010. Epub 2009 Jun 3. French.

    PMID: 19524803BACKGROUND
  • Azeredo LM, Souza LC, Guimaraes BLS, Puga FP, Behrens NSCS, Lugon JR. Inspiratory muscle training as adjuvant therapy in obstructive sleep apnea: a randomized controlled trial. Braz J Med Biol Res. 2022 Oct 3;55:e12331. doi: 10.1590/1414-431X2022e12331. eCollection 2022.

    PMID: 36197415BACKGROUND
  • Eckert DJ, White DP, Jordan AS, Malhotra A, Wellman A. Defining phenotypic causes of obstructive sleep apnea. Identification of novel therapeutic targets. Am J Respir Crit Care Med. 2013 Oct 15;188(8):996-1004. doi: 10.1164/rccm.201303-0448OC.

    PMID: 23721582BACKGROUND

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • Marie DEVAUX, Dr

    CHU d'Orléans

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 31, 2023

First Posted

November 7, 2023

Study Start

June 26, 2024

Primary Completion (Estimated)

October 25, 2026

Study Completion (Estimated)

January 25, 2027

Last Updated

December 30, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations