- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02306473
The Leaky Lung Test
A Novel Non-invasive Way to Measure Airway Epithelial Permeability in Human Subjects
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Tidlig fase 1
Kontakter og lokationer
Studiesteder
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-
New York
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Rochester, New York, Forenede Stater, 14642
- University of Rochester Medical Center
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-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion criteria: Asthma The diagnosis of asthma will be based on a consistent history, physical exam, and previous physician diagnosis of asthma. Consistent historical features of asthma include episodic wheezing, shortness of breath, chest tightness, or cough, often precipitated by known environmental triggers (e.g. respiratory viral infection, exposure to pollen, exercise, or stress). Consistent physical findings of asthma include audible expiratory wheezing and findings of associated diseases (e.g. eczema, allergic rhinitis), although the physical exam may be normal in between asthma attacks. Subjects will need to be free of asthma symptoms at time of challenge testing. Most asthmatic subjects should demonstrate bronchial reactivity during the mannitol challenge test.
Inclusion criteria: Non-asthmatic controls Healthy control subjects will be recruited in order to define baseline values for serum and urine mannitol. Healthy control subjects will be defined by the lack of symptoms or physical findings of asthma or other allergic diseases (e.g. eczema, allergic rhinitis), and absence of any other chronic lung disease. Healthy subjects should also not demonstrate bronchial reactivity during a mannitol challenge test.
Exclusion Criteria:
- >5 pack year history of tobacco use or active smoking.
- Other chronic or active lung diseases (e.g. COPD, pulmonary fibrosis, lung cancer)
- History of significant renal insufficiency of liver disease
- Asthma subjects with severe disease according to NAEPP guidelines (e.g. severe ongoing symptoms despite high-dose inhaled or oral glucocorticoids)
- Asthma subjects with a baseline FEV1<65% predicted
- Asthma subjects unwilling or unable to withhold medications prior to testing
- Pregnant women.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Asthma
Subjects with asthma will be exposed to inhaled mannitol according to FDA approved protocols.
|
Subjects will be challenged with inhaled mannitol according to already approved protocols.
Andre navne:
|
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Eksperimentel: Controls
Healthy control subjects will be exposed to inhaled mannitol according to FDA approved protocols.
|
Subjects will be challenged with inhaled mannitol according to already approved protocols.
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Airway permeability index (Urinary clearance of mannitol overtime)
Tidsramme: 24 hours
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Urinary clearance of mannitol overtime
|
24 hours
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Absorption of mannitol (Absorption and clearance of mannitol from the bloodstream)
Tidsramme: 6 hours
|
Absorption and clearance of mannitol from the bloodstream
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6 hours
|
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Steve N Georas, M.D., University of Rochester
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- RSRB00043414
- R01HL122424 (U.S. NIH-bevilling/kontrakt)
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