Belgian Pulmonary Function Study (BPFS)
4. marts 2013 opdateret af: Marc Decramer
Belgian Pulmonary Function Study : the Belgian Thoracic Society
Pulmonary function tests including spirometry, lung volumes, measurements of resistance and diffusing capacity are essential in the diagnosis of several pulmonary diseases.
These tests are an integral part of the diagnosis and treatment of lung diseases, but until now there is no clear evidence for the use of many of the pulmonary function tests because of a lack of adequate studies.
The obscurity largely pertains to the conditions under which combinations of the various tests are indicated.
Therefore the Belgian Thoracic Society, assembling all pulmonologists and the pneumology LOK/GLEM"s, will investigate this matter.
Studieoversigt
Status
Afsluttet
Betingelser
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
1000
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
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Flanders
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Leuven, Flanders, Belgien
- University Hospital Leuven
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år til 75 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Sandsynlighedsprøve
Studiebefolkning
Caucasian outpatients with respiratory symptoms but without diagnosis
Beskrivelse
Inclusion Criteria:
- Males and females
- Age between 18 and 75 years old
- New outpatients with respiratory symptoms as dyspnoea, cough, sputum, but without firm diagnosis
- Results of the tests are available and acceptable
- Standardized list of complaints
- Capability of patient for doing pulmonary function tests
- Seen by a Pneumologist
- Written informed consent
Exclusion Criteria:
- Patients with diagnosed respiratory disease
- Younger than 18 and older than 75 years old
- Recent heart attack
- Pneumothorax
- hemoptoic
- Suspicion of Tuberculosis
- Not capable to do pulmonary function tests
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
|---|
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Caucasian outpatients with respiratory symptoms
all consecutive new Caucasian outpatients with respiratory symptoms like dyspnoea, cough, sputum but without diagnosis who are being examined for the first time.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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pulmonary function tests (spirometry, volumes, resistance and diffusing capacity in that order) on the preferential diagnosis.
Tidsramme: end of study
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To determine the effect of stepwise addition of various pulmonary function tests (spirometry, volumes, resistance and diffusing capacity in that order) on the preferential diagnosis and its reflection of the gold standard (final diagnosis), a statistical score will be calculated based on 1/n differential diagnoses after every pulmonary function test.
The score will contain corrections for a high number of differential diagnoses and a wrong preferential diagnosis and compared with Linear mixed model after logistic transformation.
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end of study
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
% correct preferential diagnoses
Tidsramme: end of study
|
To determine the effect of stepwise addition of various pulmonary function tests (spirometry, volumes, resistance and diffusing capacity in that order) on preferential diagnoses and their reflection of the gold standard (final diagnosis), the number and percentage of correct preferential diagnoses will be analysed after every pulmonary function test and compared by a generalized estimating equation model (GEE)
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end of study
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N differential diagnoses in the subgroup with correct preferential diagnosis
Tidsramme: end of study
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To determine the effect of stepwise addition of various pulmonary function tests (spirometry, volumes, resistance and diffusing capacity in that order) on the number of differential diagnoses and their reflection of the gold standard (final diagnosis), the number of differential diagnoses in patients with correct preferential diagnosis will be analysed after each pulmonary function test and compared with Poisson GEE
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end of study
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subgroup analyses
Tidsramme: end of study
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The primary endpoint (1/n differntial diagnoses) and 2 secondary endpoints (% correct preferential diagnoses, n differential diagnoses within correct preferential diagnosis) will be analysed in subgroups with final gold standard diagnosis of COPD, asthma, interstitial lung disease and " no pulmonary abnormality"
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end of study
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Sensitivity analysis
Tidsramme: end of study
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Primary endpoint (1/n differntial diagnoses) and 2 secondary endpoints (% correct preferential diagnoses, n differential diagnoses within correct preferential diagnosis) and subgroup analyses (asthma, COPD, interstitial lung disease and no primary pulmonary abnormality) will be evaluated not only considering final diagnosis as standard but als correct side diagnosis
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end of study
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Marc MD Decramer, PhD, Universitaire Ziekenhuizen KU Leuven
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. juni 2011
Primær færdiggørelse (Faktiske)
1. juni 2012
Studieafslutning (Faktiske)
1. december 2012
Datoer for studieregistrering
Først indsendt
16. februar 2011
Først indsendt, der opfyldte QC-kriterier
16. februar 2011
Først opslået (Skøn)
17. februar 2011
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
5. marts 2013
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
4. marts 2013
Sidst verificeret
1. marts 2013
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- S52460
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .