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Dynamic Hyperinflation and Tiotropium

10. august 2019 opdateret af: Gelb, Arthur F., M.D.

Simplified Detection of Dynamic Hyperinflation Using Metronome Paced Hyperventilation and the Effect of Tiotropium in Patients With COPD

We will detect dynamic hyperinflation (DH) in 40 COPD (chronic obstructive pulmonary disease) patients with moderately severe disease using metronome paced hyperventilation (MPH) with inspiratory capacity as the primary end point. Hypothesis: Is tiotropium capable of lung volume protecting inspiratory capacity from MPH induced DH vs placebo in a randomized crossover double blinded study.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Study completed with 29 patients studied. Data is being analyzed to evaluate trough and peak effect of 18 µg tiotropium vs placebo on FEV 1 (L)(forced expiratory capacity in one second), inspiratory capacity and functional residual volume. In addition, we will study the effect of 18 µg tiotropium vs placebo on metronome paced hyperventilation induced dynamic hyperinflation. We will also evaluate the effect of tiotropium induced increase in IC (inspiratory capacity) vs extent of emphysema as evaluated on high resolution thin section CT lung

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

30

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Canada
    • Ontario
      • Toronto, Ontario, Canada
        • Noe Zamel MD
  • Forenede Stater
    • California
      • Lakewood, California, Forenede Stater, 90712
        • Arthur F Gelb MD

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

40 år til 85 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Moderately severe COPD patients age 40-85 yr with post 180ug albuterol FEV 1 between 60 and 79% predicted and FEV 1/FVC < 70%.
  • Smoking history > 10 pack yr.
  • Clinically stable X 6 weeks.
  • No oxygen usage.

Exclusion Criteria:

  • History of asthma
  • Clinically unstable
  • Any other significant medical problem precluding full cooperation for study

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Tiotropium 18 µg capsule, bronchodilator
tiotropium 18 µg capsule for 1 month versus placebo. To study bronchodilation and effect following metronome paced hyperventilation and induced dynamic hyperinflation of active tiotropium versus placebo
Medicin: Placebo
Procedure/Surgery - tiotropium 18ug capsule daily for 1 month vs placebo to study the effect of trough and peak effect on bronchodilation and effect of metronome paced hyperventilation induced dynamic hyperinflation
Placebo komparator: 2
placebo 18ug tiotropium for 1 month
Medicin: Placebo
Procedure/Surgery - tiotropium 18ug capsule daily for 1 month vs placebo to study the effect of trough and peak effect on bronchodilation and effect of metronome paced hyperventilation induced dynamic hyperinflation

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Bronchodilator Response:Peak FEV1(L)(Forced Expiratory Volume in One Second)-
Tidsramme: 30 days
Lung function studies (mean +/- SD): peak FEV1 (+2h) after 30 days of placebo or tiotropium in 29 moderate COPD patients. FEV1 = Forced expiratory volume in one second
30 days
Bronchodilator Response:Peak FRC (L) (Functional Residual Capacity)
Tidsramme: 30 days
Lung function studies (mean +/- SD): peak FRC after 30 days (+2h) of placebo or tiotropium in 29 moderate COPD patients.
30 days
Bronchodilator Response: Peak FVC (L) (Forced Vital Capacity)- Tiotropium and Placebo
Tidsramme: 30 days
Lung function studies (mean +/- SD) of peak forced vital capaciy (L) after 30 days (+2h) of tiotropium versus placebo in 29 moderate COPD patients. Forced vital capacity - liters
30 days
Bronchodilator Response: Peak IC (L) - (Inspiratory Capacity) - Tiotropium Versus Placebo
Tidsramme: 30 days
Lung function studies (mean +/- SD) - Peak inspiratory capacity after 30 days (+2h)of tiotropium versus placebo in 29 moderate COPD patients. Inspiratory capacity- liters
30 days
Bronchodilator Response: Peak FRC/TLC Percentage (Functional Residual Capacity(L)/Total Lung Capacity(L) - Tiotropium or Placebo
Tidsramme: 30 days
Lung function studies (mean +/- SD) peak Peak FRC/TLC after 30 days (+2h)of tiotropium versus placebo in 29 moderate COPD patients. Functional residual capacity/total lung capacity - percentage
30 days
Bronchodilator Response: Peak TLC (L) (Total Lung Capacity)- Tiotropium or Placebo
Tidsramme: 30 days
Net change in lung function studies (mean +/- SE) from baseline to trough (-1h) and peak (+2h) after 30 days of tiotropium versus placebo in 29 moderate COPD patients. Total lung capacity - liters
30 days
Bronchodilator Response: Trough FEV1 (L)- (Forced Expiratory Volume) Tiotropium Versus Placebo
Tidsramme: 30 days
Lung function studies Trough FEV1(mean +/- SD) after 30 days(-1h) of tiotropium versus placebo in 29 moderate COPD patients. Forced expiratory volume in 1s (liters)
30 days
Bronchodilator Response: Trough FRC (L)- Tiotropium Versus Placebo
Tidsramme: 30 days
Lung function studies Trough FRC(mean +/- SD) after 30 days(-1h) of tiotropium versus placebo in 29 moderate COPD patients. Functional residual capacity(liters)
30 days
Bronchodilator Response: Trough FVC (L)- (Forced Vital Capacity) Tiotropium Versus Placebo
Tidsramme: 30 days
Lung function studies Trough FVC(mean +/- SD) after 30 days(-1h) of tiotropium versus placebo in 29 moderate COPD patients
30 days
Bronchodilator Response: Trough IC (L) Inspiratory Capacity - Tiotropium Versus Placebo
Tidsramme: 30 days
Lung function studies (Trough IC(mean +/- SD) after 30 days(-1h) of tiotropium versus placebo in 29 moderate COPD patients Trough inspiratory capacity- liters
30 days
Bronchodilator Response: Trough FRC/TLC (Functional Residual Capacity/Total Lung Capacity)- Tiotropium Versus Placebo
Tidsramme: 30 days
Lung function studies Trough FRC/TLC(mean +/- SD) after 30 days(-1h) of tiotropium versus placebo in 29 moderate COPD patients Trough Functional residual capacity/total lung capacity - percentage
30 days
Bronchodilator Response: Trough TLC (L) (Total Lung Capacity)- Tiotropium Versus Placebo
Tidsramme: 30 days
Lung function studies Trough TLC(mean +/- SD) after 30 days(-1h) of tiotropium versus placebo in 29 moderate COPD patients
30 days
IC (Inspiratory Capacity L)and Metronome Paced Hyperventilation-induced Dynamic Hyperinflation in Tiotropium Cohort Versus Placebo and Baseline
Tidsramme: baseline and 30 days (+2h) post dose
IC measurement before and after metronome paced hyperventilation-induced dynamic hyperinflation at baseline and in tiotropium and placebo groups. Measure ratio of functional residual capacity divided by total lung capacity at baseline and after 30 days of tiotropium versus placebo
baseline and 30 days (+2h) post dose
TLC (L) Before and After Metronome Paced Hyperventilation Induced Dynamic Hyperinflation in Tiotropium Cohort Versus Placebo
Tidsramme: one hour before intervention & 2 hrs. after after 30 days
Total lung capacity before and after metronome paced hyperventilation induced dynamic hyperinflation in tiotropium cohort versus placebo. Difference between TLC measured at one hour before intervention & 2 hrs. after after 30 days of treatment with either placebo or tiotropium
one hour before intervention & 2 hrs. after after 30 days

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Extent of Lung CT Scored Emphysema and and Lung Function of FEV1(l) After Tiotropium
Tidsramme: baseline to 30 days
Correlation between improved lung function after tiotropium and extent of lung CT scored emphysema with respect to FEV 1; correlation of tiotropium induced bronchodilation and extent of lung ct scored emphysema; measures include increase in FEV1 from baseline to peak tiotropium
baseline to 30 days
IC (Inspiratory Capacity, L) Post Mph (Metronome Paced Hyperventilation) Induced dh (Dynamic Hyperinflation) After Tiotropium and Extent of Lung CT Scored Emphysema
Tidsramme: baseline to 30 days
Correlation between change in inspiratory capacity (L) post metronome paced hyperventilation induced dynamic hyperinflation and extent of lung ct scored emphysema
baseline to 30 days
Extent of Lung CT Scored Emphysema and and Lung Function of FRC/TLC (Functional Residual Capacity(L)/Total Lung Capacity (L) After Tiotropium
Tidsramme: baseline to trough tiotropium
Correlation between improved lung function after tiotropium and extent of lung CT scored emphysema with respect to ratio functional residual capacity divided by total lung capacity. Specifically, correlation of tiotropium induced bronchodilation and extent of lung ct scored emphysema
baseline to trough tiotropium

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Gelb, Arthur F., M.D.

Samarbejdspartnere

Pfizer
Boehringer Ingelheim

Efterforskere

  • Ledende efterforsker: Noe Zamel, MD, Mt. Sinai Hosp. Toronto, Univ Toronto Medical Center

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.

Generelle publikationer

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. oktober 2006

Primær færdiggørelse (Faktiske)

1. februar 2009

Studieafslutning (Faktiske)

1. marts 2009

Datoer for studieregistrering

Først indsendt

6. december 2007

Først indsendt, der opfyldte QC-kriterier

6. december 2007

Først opslået (Skøn)

7. december 2007

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

20. august 2019

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. august 2019

Sidst verificeret

1. juli 2017

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 20061693
  • IIS Boehringer-Ingelheim (Andet bevillings-/finansieringsnummer: Boehringer-Ingelheim and Pfizer)
  • IIS Pfizer (Andet bevillings-/finansieringsnummer: Pfizer)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Please see published data

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 .

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