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Sleep Apnea Biomarkers and Adherence to Continuous Positive Airway Pressure (BIOSA)

26. August 2026 aktualisiert von: Bughin Francois, Clinique du Millenaire

Impact of Obstructive Sleep Apnea Biomarkers on Adherence to Continuous Positive Airway Pressure: Role of Pulse Wave Amplitude Drop Index, Hypoxic Burden, and Heart Rate Variability

Obstructive sleep apnea (OSA) is commonly assessed using the apnea-hypopnea index, although this measure does not fully reflect cardiovascular risk or the physiological impact of the disease. Emerging biomarkers, including sleep apnea-specific hypoxic burden, pulse wave amplitude drop index, and heart rate response, may provide additional information on cardiovascular vulnerability.

This prospective multicenter observational study will investigate the association between these biomarkers, measured from the diagnostic sleep study, and adherence to continuous positive airway pressure (CPAP) therapy after three months. Symptoms, quality of life, clinical characteristics, and changes in biomarkers under continuous positive airway pressure will also be evaluated.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

This is a prospective, longitudinal, multicenter observational cohort study involving adults with newly diagnosed obstructive sleep apnea for whom continuous positive airway pressure therapy is indicated as part of routine clinical care.

At baseline, demographic and clinical characteristics, medical history, current treatments, symptom questionnaires, and results from diagnostic respiratory polygraphy or polysomnography will be collected. Hypoxic burden, pulse wave amplitude drop index, and heart rate response will be calculated from the initial sleep recording. Continuous positive airway pressure will be prescribed according to standard clinical practice.

At 12 weeks, with a permitted window of plus or minus four weeks, adherence data will be obtained from the continuous positive airway pressure device. Clinical information and questionnaires will be collected again. Participants requiring a follow-up sleep study as part of routine care may undergo respiratory polygraphy or polysomnography while receiving continuous positive airway pressure, allowing assessment of biomarker changes under treatment.

The principal analysis will examine associations between baseline biomarkers and continuous positive airway pressure adherence. Secondary analyses will assess biomarker distributions according to clinical characteristics, associations with symptoms and quality of life, and changes in biomarkers during treatment.

Studientyp

Beobachtungs

Einschreibung (Geschätzt)

200

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

      • Montpellier, Frankreich, 34000
        • Rekrutierung
        • Clinique Millenaire
        • Kontakt:
          • Francois FB Bughin, Study Principal Investigator
          • Telefonnummer: 0033761783081
          • E-Mail: fbughin@hotmail.com

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

Adults with newly diagnosed obstructive sleep apnea syndrome and an indication for continuous positive airway pressure therapy, recruited from approximately 10 sleep medicine centers in France. Participants are treated according to routine clinical practice and followed for 3 months to assess CPAP adherence, symptoms, quality of life, and sleep apnea biomarkers.

Beschreibung

Inclusion Criteria:

  • Newly diagnosed obstructive sleep apnea with an indication for continuous positive airway pressure therapy
  • Age older than 18 years
  • Written informed consent obtained

Exclusion Criteria:

  • Continuous positive airway pressure treatment during the preceding 3 months
  • Medical contraindication to continuous positive airway pressure therapy
  • Concomitant condition likely to affect adherence to continuous positive airway pressure, including severe cognitive impairment or an unstable psychiatric disorder

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
Patients with newly diagnosed obstructive sleep apnea
Adults with newly diagnosed obstructive sleep apnea and a clinical indication for continuous positive airway pressure therapy. Treatment is prescribed according to routine clinical practice. Participants are followed for three months to evaluate treatment adherence, symptoms, quality of life, and sleep apnea biomarkers.
Continuous positive airway pressure prescribed as part of routine clinical care according to applicable clinical recommendations. The study does not assign the treatment or its settings.
Andere Namen:
  • CPAP
  • Positiver Atemwegsdruck

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Association Between Baseline Hypoxic Burden and CPAP Adherence at 3 Months
Zeitfenster: Baseline to 3 months after CPAP initiation
Association between hypoxic burden measured during the baseline diagnostic sleep study and mean nightly CPAP use during the 30 days preceding the 3-month visit. CPAP adherence will also be categorized as less than 4 hours per night versus 4 hours or more per night.
Baseline to 3 months after CPAP initiation

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Distribution of Baseline Sleep Apnea Biomarkers
Zeitfenster: BASELINE
Distribution of hypoxic burden, pulse wave amplitude drop index, and heart rate response measured or calculated from the baseline respiratory polygraphy or polysomnography. Results will be described according to sex, age, body mass index, medical history, cardiovascular history, and current treatments.
BASELINE
Association Between Baseline Heart Rate Response and CPAP Adherence at 3 Months
Zeitfenster: Baseline to 3 months after CPAP initiation
Association between the heart rate response to respiratory events (delta heart rate) measured during the baseline diagnostic sleep study and mean nightly CPAP use during the 30 days preceding the 3-month visit. CPAP adherence will also be categorized as less than 4 hours per night versus 4 hours or more per night.
Baseline to 3 months after CPAP initiation
Association Between Baseline Pulse Wave Amplitude Drop Index and CPAP Adherence at 3 Months
Zeitfenster: Baseline to 3 months after CPAP initiation
Association between the pulse wave amplitude drop index (PWAD index) measured during the baseline diagnostic sleep study and mean nightly CPAP use during the 30 days preceding the 3-month visit. CPAP adherence will also be categorized as less than 4 hours per night versus 4 hours or more per night.
Baseline to 3 months after CPAP initiation
Daytime Sleepiness Assessed by the Epworth Sleepiness Scale
Zeitfenster: Baseline and 3 months
Daytime sleepiness will be assessed using the Epworth Sleepiness Scale at baseline and 3 months after CPAP initiation. The total score ranges from 0 to 24, with higher scores indicating greater daytime sleepiness and therefore a worse outcome. The change in total score between baseline and 3 months will be evaluated.
Baseline and 3 months
Health-Related Quality of Life Assessed Using the EuroQol 5-Dimension 5-Level Questionnaire
Zeitfenster: baseline and 3 months
Health-related quality of life will be assessed using the EuroQol 5-Dimension 5-Level questionnaire (EQ-5D-5L) at baseline and 3 months after CPAP initiation. The EQ-5D-5L evaluates five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has five response levels, ranging from 1 (no problems) to 5 (extreme problems or inability to perform the activity). Responses will be converted into an EQ-5D-5L utility index using the French value set. Index values range from -0.525 to 1, with higher values indicating better health-related quality of life. The change in the utility index between baseline and 3 months will be evaluated.
baseline and 3 months
Goal Attainment Assessed by Goal Attainment Scaling
Zeitfenster: baseline and 3 months
Goal Attainment Scaling score and its change between baseline and the 3-month follow-up visit. Attainment of the participant's individualized treatment goal will be assessed at 3 months using Goal Attainment Scaling (GAS). Goal attainment is rated on a five-point scale ranging from -2 to +2: -2 indicates a much worse outcome than expected, -1 a somewhat worse outcome than expected, 0 the expected level of goal attainment, +1 a somewhat better outcome than expected, and +2 a much better outcome than expected. Higher scores indicate better goal attainment and therefore a better outcome
baseline and 3 months
Change in Sleep Apnea-Specific Hypoxic Burden During CPAP Therapy
Zeitfenster: baseline and 3 months
Sleep apnea-specific hypoxic burden will be calculated from the oxygen desaturation area associated with respiratory events and expressed as percent-minutes per hour (%min/h). The change from the baseline diagnostic sleep study to the sleep study performed during CPAP therapy at 3 months will be evaluated. Higher values indicate a greater hypoxic burden and therefore a worse outcome. This assessment will be performed only in participants undergoing a follow-up sleep study as part of routine care.
baseline and 3 months
Change in Pulse Wave Amplitude Drop Index During CPAP Therapy
Zeitfenster: Baseline and 3 months after CPAP initiation
The pulse wave amplitude drop index will be calculated as the number of pulse wave amplitude drops per hour of sleep or recording. The change from the baseline diagnostic sleep study to the sleep study performed during CPAP therapy at 3 months will be evaluated. Higher values indicate more frequent pulse wave amplitude drops. This assessment will be performed only in participants undergoing a follow-up sleep study as part of routine care.
Baseline and 3 months after CPAP initiation
Change in Heart Rate Response to Respiratory Events During CPAP Therapy
Zeitfenster: Baseline and 3 months after CPAP initiation
Heart rate response will be measured as the mean change in heart rate associated with respiratory events (delta heart rate). The change from the baseline diagnostic sleep study to the sleep study performed during CPAP therapy at 3 months will be evaluated. Higher values indicate a greater heart rate response to respiratory events. This assessment will be performed only in participants undergoing a follow-up sleep study as part of routine care.
Baseline and 3 months after CPAP initiation

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

18. Februar 2026

Primärer Abschluss (Geschätzt)

31. Dezember 2026

Studienabschluss (Geschätzt)

30. September 2027

Studienanmeldedaten

Zuerst eingereicht

10. August 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

26. August 2026

Zuerst gepostet (Tatsächlich)

28. August 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

28. August 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

26. August 2026

Zuletzt verifiziert

1. August 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • BIOSA
  • 2025-A01061-48 (Andere Kennung: French National Agency for the Safety of Medicines and Health Products (ANSM))

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UNENTSCHIEDEN

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Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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