Validation of a Miniature SpO2 Sensor in Healthy Subjects and Patients With Long-term Oxygen Therapy. (OxyFrame)
Validation of a Miniature SpO2 Sensor in Healthy Subjects and Patients With Long-term Oxygen Therapy. A Prospective, Method Comparison, Proof of Concept Study.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Objectives:
- To determine accuracy of SpO2 measurements by the novel sensor compared to 2 reference pulse oximeters in healthy subjects undergoing a normobaric hypoxic challenge provoking SpO2 desaturation.
- To determine accuracy of SpO2 measurements by the novel sensor compared to 2 reference pulse oximeters and to arterial blood gas analysis in patients qualifying for LTOT, breathing room air at rest (lying, sitting, standing position) and during exercise (slow walking, 6-MWT, ergometer cycle).
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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-
-
Bern, Schweiz, 3010
- Department of Pulmonary Medicine, University Hospital Bern
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Healthy volunteers
Inclusion Criteria:
- Age 18 - 60 years,
- Non smoker,
- Good general health and physical fitness
- Informed Consent
Exclusion Criteria:
- Current or history of tobacco smoking (> 5 py)
- Current alcohol or drug abuse
- Heart disease or untreated arterial hypertension
- Pulmonary disease
- Epilepsy or other major neurologic disease
- Dark skin colour
- Known anemia
- Severe metabolic disease (e.g. diabetes)
- Pregnancy
Patients
Inclusion Criteria:
- Age ≥ 18 years
- Long term oxygen therapy at rest and/or on physical effort
- Hypoxemia in arterial blood gas analysis at rest PaO2 ≤ 55 mmHg or < 60 mmHg with PHT or polycythemia (men Hb > 174 g/L, women Hb > 140 g/L) or:
Oxygen desaturation on effort (SpO2 < 90%)
- Pulmonary disease including Chronic Obstructive Pulmonary Disease, Interstitial Lung Disease and Sarcoidosis
- Informed Consent
Exclusion Criteria:
- Severe hypoxemia (pO2 <40 mmHg)
- Severe hypercapnia (pCO2 >55 mmHg)
- Acute respiratory infection or systemic infection,
- Severe systolic heart disease (LVEF < 25%)
- Myocardial infarction during the last month before inclusion
- Unstable angina pectoris
- Severe aortic stenosis (mean gradient > 40mmHg, valve area <1 cm2)
- Rhythmogenic heart disease
- Severe or untreated arterial hypertension (blood pressure > 180mmHg systolic, >100mmHg diastolic)
- Anemia (Hb < 120 g/l)
- Known or suspected coagulation disorder (e.g. INR > 4)
- Severe or untreated metabolic disorder
- Neurologic disease or dementia
- Pregnancy
- History of non-compliance to medical treatment
- Current alcohol, drug abuse or current tobacco smoking
- Dark skin color
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Andet: Healthy Subjects and patients
Validation of SpO2 sensor in healthy subjects as a first step.
Validation of SpO2 sensor in patients as a second step.
|
Validation of a miniaturized pulse oximetry sensor for integration into the frame of oxygen delivery glasses.
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Assessment of accuracy in patients
Tidsramme: At baseline
|
Assessment of the accuracy of the novel pulse oximeter sensor in patients qualifying for LTOT over the entire saturation range by calculating accuracy root mean square (ARMS).
Continuous SpO2 measurement of the novel pulse oximeter will be compared to measurements assessed by 2 standard pulse oximeters and arterial blood gas analysis.
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At baseline
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Assessment of accuracy in healthy volunteers
Tidsramme: At baseline
|
Assessment of accuracy of the novel pulse oximeter sensor in healthy subjects undergoing a normobaric hypoxic challenge provoking SpO2 desaturation.
SpO2 will be measured continuously over the hole procedure and SpO2 range by the novel pulse oximeter sensor and the 2 reference pulse oximeters.
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At baseline
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Manuela Funke, MD, Department of Pulmonary Medicine, University Hospital Bern
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- OxyFrame
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