Evaluation of MRI Measures of Lung Water With Posture Changes in Healthy Volunteers and in Patients With Cardiac Failure
29. maj 2014 opdateret af: GlaxoSmithKline
An Evaluation of MRI Measures of Lung Water Increases With Postural Changes in Healthy Subjects and in Patients With Cardiac Failure: A Methods Validation Study for Evaluation of Novel Treatments Limiting Pulmonary Oedema in Cardiac Failure
The aim of this study is to establish a model for the evaluation of drug targets using postural measures to induce changes in lung water concentration as assessed by MRI.
A reduction in the magnitude and rate of water transudation with postural changes in patients with congestive heart failure (CHF) could provide a model for the evaluation of various classes of molecules for target validation and for dose selection.
Studieoversigt
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
20
Fase
- Fase 1
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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London, Det Forenede Kongerige, W12 0HS
- GSK Investigational Site
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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 og ældre (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- Heart Failure Patients:
- Established diagnosis of mild to moderate heart failure of any aetiology with symptoms defined as corresponding to the New York Heart Association (NYHA) class I, II or III
- Able in the opinion of the patient and investigator to be supine for 1 hour and to experience passive leg raising (PLR) whilst in the MRI scanner
- Male or female over 18 years of age at the time of signing the informed consent
- Negative urine or serum pregnancy test
- Capable of giving written informed consent
- Registered with a UK general practitioner.
- Participants must read (in English) at a level sufficient to adequately complete study related questionnaires
- Able to understand and comply with protocol requirements, instructions and protocol-stated restrictions
- Healthy Volunteers:
- Healthy as determined by a responsible physician
- Male or female over 18 years of age at the time of signing the informed consent
- Capable of giving written informed consent
- Negative urine or serum pregnancy test
- Registered with a UK general practitioner
- Participants must read (in English) at a level sufficient to adequately complete study related questionnaires
- Able to understand and comply with protocol requirements, instructions and protocol-stated restrictions
Exclusion Criteria:
- Heart Failure Patients
- History of primary pulmonary disease requiring current medication or other therapy.
- Orthopnoea of sufficient severity to preclude supine scanning.
- Hip or leg pathology of sufficient severity to prevent extension of both legs to 45 degrees.
- Unstable heart failure, defined as change in NYHA status, change in heart failure therapy regimen or hospitalization for acute decompensation of heart failure within preceding 6 weeks.
- Unstable angina within the past 3 months
- Current smoker, defined as having smoked in the preceding 1 year
- Uncontrolled hypertension (resting systolic BP > 160 mmHg or resting diastolic BP > 100mmHg)
- Resting hypoxia (SaO2 <93%).
- Contraindication to MRI scanning
- Pregnant females
- Positive drugs of abuse or alcohol screen.
- Unwillingness or inability to follow the procedures outlined in the protocol.
- Healthy Volunteers
- History of primary pulmonary disease requiring current medication or other therapy
- Current smoker, defined as having smoked in the preceding 1 year
- Hip or leg pathology of sufficient severity to prevent extension of both legs to 45 degrees
- Contraindication to MRI scanning
- Pregnant females
- Positive drugs of abuse or alcohol screen
- Unwillingness or inability to follow the procedures outlined in the protocol
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
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 |
|---|---|
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Andet: Healthy Volunteer
Healthy Volunteer cohort
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MRI of lungs to measure lung water content before and after passive leg raising (PLR)
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Andet: Heart Failure
Heart Failure cohort
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MRI of lungs to measure lung water content before and after passive leg raising (PLR)
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Lung water distribution as measured by MRI
Tidsramme: Visit 1 and Visit 2 will be approximately 1 week apart
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MRI test
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Visit 1 and Visit 2 will be approximately 1 week apart
|
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Lung water concentration as measured by MRI
Tidsramme: Visit 1 and Visit 2 will be approximately 1 week apart
|
MRI test
|
Visit 1 and Visit 2 will be approximately 1 week apart
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Between patient variability in lung water concentration as measured by MRI at 2 independent visits
Tidsramme: Visit 1 and Visit 2 will be approximately 1 week apart
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MRI test
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Visit 1 and Visit 2 will be approximately 1 week apart
|
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Within patient variability in lung water concentration as measured by MRI at 2 independent visits
Tidsramme: Visit 1 and Visit 2 will be approximately 1 week apart
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MRI test
|
Visit 1 and Visit 2 will be approximately 1 week apart
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
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. januar 2011
Primær færdiggørelse (Faktiske)
1. august 2011
Studieafslutning (Faktiske)
1. august 2011
Datoer for studieregistrering
Først indsendt
18. november 2010
Først indsendt, der opfyldte QC-kriterier
13. januar 2011
Først opslået (Skøn)
17. januar 2011
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
2. juni 2014
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
29. maj 2014
Sidst verificeret
1. maj 2014
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 114747
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
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Ingen
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