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Sleep Disordered Breathing in Transient Ischemic Attack (TIA)/Ischemic Stroke and Continuous Positive Airway Pressure (CPAP) Treatment Efficacy (SAS-CARE)

23 oktober 2015 uppdaterad av: Prof. Claudio Bassetti

Sleep Disordered Breathing in TIA/Ischemic Stroke: Effects on Short- and Long-term Outcome and CPAP Treatment Efficacy: an Open, Observational, Clinical, Multicentre Trial With a Randomized Arm

The study aims to observe the short term effect (3-month) of sleep disordered breathing (SDB) on cardiovascular parameters, heart rate variability, endothelial function and surrogate markers of atherosclerosis after acute cerebrovascular events (ACE). The long-term effect (6-24-month) of Continuous Positive Airway Pressure (CPAP) on clinical vascular outcome, cardiovascular parameters, evolution of surrogate of atherosclerosis heart rate variability and endothelial function after ACE is observed over 24 months. A preventive effect of CPAP therapy on cerebro-vascular events in patients with moderate-severe obstructive SDB without sleepiness after ictus or transient ischaemic attack will be evaluated.

Studieöversikt

Status

Okänd

Betingelser

Intervention / Behandling

Detaljerad beskrivning

Sleep disordered breathing is an independent risk factor for cardiovascular morbidity and mortality and is frequent in patients with acute cerebrovascular events. In this study the investigators observe the association between sleep disordered breathing, hypertension, stroke and the evolution of blood markers for atherosclerosis as well as the efficacy of Continuous Positive Airway Pressure treatment in patients with acute or subacute cerebrovascular events.

Sleep disordered breathing is an independent risk factor for cardiovascular morbidity and mortality and is frequent in patients with acute cerebrovascular events. In this study the investigators observe the association between sleep disordered breathing, hypertension, stroke and the evolution of blood markers for atherosclerosis as well as the efficacy of Continuous Positive Airway Pressure treatment in patients with acute or subacute cerebrovascular events.

The SAS CARE 1 study is planned to verify whether or not sleep disordered breathing has a detrimental 3 months effect on cardiovascular functions and markers after acute cerebrovascular events. The SAS CARE 2 study is designed to address whether or not the treatment of sleep disordered breathing with CPAP reduces the combined rate of mortality, stroke, cardiovascular events (myocardial infarction/revascularisation/instable angina/ hospitalisation for heart insufficiency) over a 24 months period in patients after acute cerebrovascular events.

Studietyp

Interventionell

Inskrivning (Faktisk)

246

Fas

  • Fas 4

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

    • Lombardia
      • Milan, Lombardia, Italien, I-20162
        • Dipartimento Neuroscienze, Ospedale Niguarda
      • Bern, Schweiz, CH-3010
        • Inselspital, Universitätsklinik für Pneumologie
    • Ticino
      • Bellinzona, Ticino, Schweiz, CH-6500
        • Ospedale San Giovanni
      • Lugano, Ticino, Schweiz, CH-6900
        • Neurocenter of Southern Switzerland, Ospedale Civico
      • Münster, Tyskland
        • University Hospital Munster

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

35 år till 75 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • ≥ 35 years old and < 75 years old
  • with clinical diagnosis of TIA or ischemic stroke
  • admitted in a Stroke Unit within 2 days from onset of symptoms
  • or with TIA or ischemic stroke within the last 60-90 days
  • signed Informed Consent

Exclusion Criteria:

  • with unstable clinical situation (cardio-respiratory or life-threatening medical conditions)
  • currently on CPAP or on CPAP during the last 3 months before stroke
  • with non-ischemic events (intracerebral/subarachnoid haemorrhage)
  • Patients with coma/stupor
  • with borderline obstructive SDB (AHI 10-19)
  • with any condition that interferes with the acceptance of CPAP treatment

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: CPAP in sleepy patients with SDB
SDB defined as AHI >=20 Sleepy defined as Epworth Sleepiness Score >=10
Inget ingripande: no CPAP in non sleepy patients with SDB
SDB defined as AHI >=20 Sleepy defined as Epworth Sleepiness Score >=10
Aktiv komparator: CPAP in non sleepy patients with SDB
SDB defined as AHI >=20 Sleepy defined as Epworth Sleepiness Score >=10

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Occurence of new vascular events or death in stroke survivors (myocardial infarction, stroke, death) assessed by telephone or reported
Tidsram: 24 monts after stroke
New vascular events will be assessed by regular telephone interviews at 6,12 and 24 months after stroke
24 monts after stroke

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
CPAP-Compliance measured by hours of usage
Tidsram: up to 24 months after stroke
Compliance is monitored for the use of the CPAP by the pulmonary specialist at the patients' routine visits 2-3, 4-6 weeks, 3-6 months, 12 and 24 months after randomisation. The hours ofuse are registered by a chip inserted in the device. Good compliance is, if the device was used > 10 hours per day. Satisfactory compliance is defined for a use of the CPAP for at least 4 hours per night during at least 70% of the nights. Insufficient compliance is defined as < 4 hours per night or less than 70% of nights.
up to 24 months after stroke
Blood pressure profile (systolic mean, diastolic mean, max, min: general, day, night) measured in mmHg for every patient by ambulatory 24h-BP-devices in the acute stroke phase, after 3 months and after 12 months
Tidsram: up to 12 months after stroke
Mean systolic and diastolic BP values, minimal and maximum values will be calculated for each patient for each period of time [after stroke: whole measuring period, (36 h) first night, second day, and second night after stroke; 3 months after stroke: whole period (24 h), day, night]. In addition same measurements will be made 12 months after stroke The occurrence of dippers will be registered at baseline (after stroke) and at 3 months. A dipper is defined, if the mean pressure at night is diminished more than 10% (compared to day data). An inverse-dipper is defined if more than 10% augmentation of night pressure will be registered. A deep-deeper is defined the mean pressure at night is diminished more than 20% (compared to day data).
up to 12 months after stroke
Blood pressure dipping measured by ambulatory 24h-BP-devices in the acute stroke phase, after 3 months and after 12 months
Tidsram: up to 12 months after stroke
The occurrence of dippers will be registered at baseline (after stroke) and at 3 months and 12 months after stroke. A dipper is defined, if the mean pressure at night is diminished more than 10% (compared to day data). An inverse-dipper is defined if more than 10% augmentation of night pressure will be registered. A deep-deeper is defined the mean pressure at night is diminished more than 20% (compared to day data).
up to 12 months after stroke

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

  • Huvudutredare: Claudio Bassetti, Professor, Universitätsspital Bern (Inselspital) und Universität Bern
  • Studiestol: Carlo Cereda, Capo CLinica, Neurocentre of Southern Switzerland, Ospedale Civico
  • Studiestol: Sebastian Ott, MD, Pneumology, University Hospital, Bern
  • Studiestol: Lino Nobili, Prof. MD, Neurology, Stroke Unit, Ospedale Niguarda, Milan, Italy
  • Studiestol: Mauro Manconi, MD, Neurocentre of Southern Switzerland, Ospedale Civico
  • Studiestol: Peter Young, Prof. MD, Universitätsklinik Münster, Zentrum für Schlafmedizin

Publikationer och användbara länkar

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Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 juli 2010

Primärt slutförande (Förväntat)

1 april 2016

Avslutad studie (Förväntat)

1 april 2016

Studieregistreringsdatum

Först inskickad

1 april 2010

Först inskickad som uppfyllde QC-kriterierna

1 april 2010

Första postat (Uppskatta)

2 april 2010

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

26 oktober 2015

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

23 oktober 2015

Senast verifierad

1 oktober 2015

Mer information

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