Evaluation of MRI Measures of Lung Water With Posture Changes in Healthy Volunteers and in Patients With Cardiac Failure
This study has been completed.
Sponsor:
GlaxoSmithKline
Information provided by (Responsible Party):
GlaxoSmithKline
ClinicalTrials.gov Identifier:
NCT01277679
First received: November 18, 2010
Last updated: March 15, 2012
Last verified: November 2011
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Purpose
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.
| Condition | Intervention |
|---|---|
|
Heart Failure, Congestive |
Procedure: MRI |
| Study Type: | Observational |
| Study Design: | Observational Model: Cohort Time Perspective: Prospective |
| Official Title: | 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 |
Resource links provided by NLM:
Further study details as provided by GlaxoSmithKline:
Primary Outcome Measures:
- Lung water distribution as measured by MRI [ Time Frame: Visit 1 and Visit 2 will be approximately 1 week apart ] [ Designated as safety issue: No ]MRI test
- Lung water concentration as measured by MRI [ Time Frame: Visit 1 and Visit 2 will be approximately 1 week apart ] [ Designated as safety issue: No ]MRI test
Secondary Outcome Measures:
- Between patient variability in lung water concentration as measured by MRI at 2 independent visits [ Time Frame: Visit 1 and Visit 2 will be approximately 1 week apart ] [ Designated as safety issue: No ]MRI test
- Within patient variability in lung water concentration as measured by MRI at 2 independent visits [ Time Frame: Visit 1 and Visit 2 will be approximately 1 week apart ] [ Designated as safety issue: No ]MRI test
| Enrollment: | 20 |
| Study Start Date: | January 2011 |
| Study Completion Date: | August 2011 |
| Primary Completion Date: | August 2011 (Final data collection date for primary outcome measure) |
| Groups/Cohorts | Assigned Interventions |
|---|---|
|
Healthy Volunteer
Healthy Volunteer cohort
|
Procedure: MRI
MRI of lungs to measure lung water content before and after passive leg raising (PLR)
|
|
Heart Failure
Heart Failure cohort
|
Procedure: MRI
MRI of lungs to measure lung water content before and after passive leg raising (PLR)
|
Eligibility| Ages Eligible for Study: | 18 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Non-Probability Sample |
Study Population
The study intends to recruit enough subjects to yield up to 15 evaluable datasets in each of two groups of subjects: those with heart failure and healthy volunteers.
Criteria
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
Contacts and Locations
More Information
No publications provided
| Responsible Party: | GlaxoSmithKline |
| ClinicalTrials.gov Identifier: | NCT01277679 History of Changes |
| Other Study ID Numbers: | 114747 |
| Study First Received: | November 18, 2010 |
| Last Updated: | March 15, 2012 |
| Health Authority: | United Kingdom: National Research Ethics Service (NRES) |
Keywords provided by GlaxoSmithKline:
|
lung water measures pulmonary edema MRI heart failure |
Additional relevant MeSH terms:
|
Heart Failure Pulmonary Edema Heart Diseases |
Cardiovascular Diseases Lung Diseases Respiratory Tract Diseases |
ClinicalTrials.gov processed this record on May 16, 2013