- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT02495675
Effects of Treatment With High Flow Nasal Cannulas on Respiratory Pattern and Work of Breathing Among Healthy Subjects (HDWOBSS)
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
High flow oxygen therapy (HFOT) is a promising technique increasingly used in the management of acute respiratory failure. In hospitalised hypoxemic patients, recent clinical evidence showed that HFOT can reduce endotracheal intubation and reduce mortality. Physiologically, the HFOT causes a decrease in respiratory rate and minute-ventilation and may be associated with a decrease in carbone dioxyde arterial pressure. It is possible that these effects are associated with decreased work of breathing, which could explain some of the benefits in terms of comfort and efficiency.
The objective of this research is to evaluate the impact of a wash-out of anatomical dead space by high flow nasal cannulas on respiratory parameters and on the work of breathing among healthy subjects. The investigators will evaluate the baseline status in room air, and then compare it with four different levels of flow. The primary endpoint will be the work of breathing.
Studietype
Registrering (Forventet)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
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Quebec
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Québec, Quebec, Canada, G1V4G5
- Rekruttering
- Centre de recherche de l'IUCPQ
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Ta kontakt med:
- François Lellouche, MD, PhD
- Telefonnummer: 3298 418-656-8711
- E-post: francois.lellouche@criucpq.ulaval.ca
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-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Healthy subjects
- Written and informed consent
Exclusion Criteria:
- Pregnant or breastfeeding women;
- Subject enrolled in another study excluding co-enrolment;
- Cardio-vascular or respiratory disease;
- History of ear nose and throat disease (i.e. surgery, epistaxis, trauma), eso-gastric disease (i.e. esophageal varices, digestive haemorrhage), rheumatologic or neurologic disease possibly interfering with the design of the study;
- Subject feeling nauseous or under recent fed condition (<1h).
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Crossover-oppdrag
- Masking: Enkelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Ingen inngripen: No flow
Subjects will be spontaneously breathing in room air with no flow.
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Eksperimentell: Conventional flow via nasal prongs
Subjects will be breathing with nasal prongs delivering 5 L/min of air (inspired fraction of oxygen: 0.21)
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Low flow of air delivered through conventional nasal prongs
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Eksperimentell: High flow nasal cannulas 20 L/min
Subjects will be breathing with high flow nasal cannulas delivering 20 L/min with an inspired fraction of oxygen of 0.21.
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Comparison of different flow levels
Andre navn:
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Eksperimentell: High flow nasal cannulas 40 L/min
Subjects will be breathing with high flow nasal cannulas delivering 40 L/min with an inspired fraction of oxygen of 0.21.
|
Comparison of different flow levels
Andre navn:
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Eksperimentell: High flow nasal cannulas 60 L/min
Subjects will be breathing with high flow nasal cannulas delivering 60 L/min with an inspired fraction of oxygen of 0.21.
|
Comparison of different flow levels
Andre navn:
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Work of breathing
Tidsramme: 10 minutes
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Work of breathing at the end of each period is calculated from the measurement of esophageal pressure and tidal volume (composite outcome).
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10 minutes
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Esophageal pressure-time product
Tidsramme: 10 minutes
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Measured at the end of each period
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10 minutes
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Tidal Volume
Tidsramme: 10 minutes
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Measured at the end of each period
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10 minutes
|
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Comfort of breathing
Tidsramme: 10 minutes
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Subjective evaluation at the end of each period
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10 minutes
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Blood gases
Tidsramme: 10 minutes
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Arterial or capillary blood gases at the end of each period
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10 minutes
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Dyspnea
Tidsramme: 10 minutes
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Evaluation on a borg scale at the end of each period
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10 minutes
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Respiratory Rate
Tidsramme: 10 minutes
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Measured at the end of each period
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10 minutes
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End-tidal carbon dioxide
Tidsramme: 10 minutes
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Measured at the end of each period
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10 minutes
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Heart rate
Tidsramme: 10 minutes
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Measured at the end of each period
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10 minutes
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Oxygen saturation
Tidsramme: 10 minutes
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Measured at the end of each period
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10 minutes
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Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Studieleder: François Lellouche, MD, PhD, Fondation IUCPQ
Publikasjoner og nyttige lenker
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Forventet)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- IUCPQ-HDWOBSS
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .
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