Right Heart FailureNCT00811486
Body Volume Regulation in Pulmonary Arterial Hypertension With Right Ventricular Failure
A study testing Spironolactone and conivaptan in people with Right Heart Failure and Pulmonary Hypertension, run by University of Colorado, Denver at 1 site in United States.
Trial summary
Secondary hyperaldosteronism and the non-osmotic release of arginine vasopressin (AVP) are the major factors in sodium and water retention in pulmonary arterial hypertension with right ventricular failure. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Right Heart Failure, Pulmonary Hypertension
- What is being tested?
- Spironolactone and conivaptan
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- Jan 2009to Dec 2010
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 1. Patients with World Health Organization (WHO) group 1 pulmonary arterial hypertension [51], excluding patients with portal hypertension, meeting the following hemodynamic parameters:
- Mean pulmonary artery pressure (mPAP) >35 mmHg at rest, and
- Pulmonary capillary wedge pressure (PCWP) <15 mmHg, and
- Pulmonary vascular resistance (PVR) >1.5 wood units, and 2. Age 18 to 75 years 3. Right ventricular failure defined by right atrial pressure >7 mmHg along with either dilated right ventricle, or absence of inferior vena cava collapse or BNP >100 pg/ml 4. Patients of childbearing age must be practicing effective birth control. 5. Normal left ventricular function as assessed by echocardiogram, multiple gated acquisition (MUGA) cardiac scan, or invasive left ventriculography.
Who cannot join
- 1. Group 2-5 pulmonary hypertension as defined by WHO.
- Pulmonary hypertension with left heart failure (as assessed by echocardiogram, multiple gated acquisition (MUGA) cardiac scan, or invasive left ventriculography).
- Pulmonary hypertension associated with lung disease and/or hypoxemia (e.g. chronic obstructive pulmonary disease, interstitial lung disease, sleep disordered breathing, chronic exposure to high altitude, alveolar hypoventilation syndrome.
- Pulmonary hypertension due to chronic thrombotic and/or embolic diseases
- Miscellaneous such as sarcoidosis, compression of pulmonary vessels by adenopathy, tumor 2. Systemic hypertension, defined as a systolic pressure >140 mmHg or a diastolic blood pressure >90 mmHg 3. Patients taking angiotensin converting enzyme (ACE) inhibitor or angiotensin receptor blockers (ARBs) 4. Pregnancy 5. Chronic kidney disease (serum creatinine > 2.5mg/dl, proteinuria >500 mg/day, hematuria) 6. Cirrhosis or portal hypertension 7. Inability to provide informed consent. 8. Allergy to conivaptan or spironolactone. 9. Active malignancy 10. Patients receiving spironolactone 11. Enrollment in other interventional studies. 12. Patients on Highly Active Antiretroviral Therapy (HAART)
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Colorado at Denver and Health Sciences Center General Clinical Research Center
Denver, Colorado, 80262
About this study
Secondary hyperaldosteronism and the non-osmotic release of arginine vasopressin (AVP) are the major factors in sodium and water retention in pulmonary arterial hypertension with right ventricular failure. Natriuretic doses of mineralocorticoid antagonist and aquaretic doses of V2 receptor antagonist will attenuate the sodium and water retention respectively, and be associated with clinical improvement.
Read the detailed description
Much has been learned about the pathophysiological state that underlies the development of increased total body volume and edema in left ventricular failure. Very little, however, is known about the mechanism underlying systemic hypervolemia in patients with isolated right ventricular dysfunction. Patients with pulmonary arterial hypertension (PAH) represent a model of isolated right ventricular dysfunction in which these mechanisms may be elucidated. Aldosterone has now been shown to have many properties that are likely to be detrimental in congestive heart failure (CHF) and that are not shared by angiotensin II. Aldosterone blockade has been associated with improved mortality in patients with left ventricular failure, already receiving an angiotensin converting enzyme inhibitor. But its role in isolated right ventricular failure has not been elucidated. The plasma arginine vasopressin levels are disproportionately elevated for the degree of serum osmolarity in patients with heart failure and result in water retention and hyponatremia. Conivaptan, a vasopressin receptor antagonist, appears to reduce body weight and improve signs of left heart failure, though there is no study to evaluate its role in right ventricular failure with edema.
This study will examine the role of spironolactone and conivaptan in patients with right ventricular failure and pathophysiology of sodium and water retention in these patients.
- Conditions
- Right Heart Failure, Pulmonary Hypertension
- Being tested
- Spironolactone and conivaptan
- Medical subject headings
- Heart Failure, Hypertension, Pulmonary
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Spironolactone and conivaptanDrug
Tablet, 50 mg to 200 mg, daily, orally 20 mg intravenously one time over 30 minutes
| Study group | Role | What they receive |
|---|---|---|
| Usual care | No intervention | Group II |
| Spironolactone and conivaptan | Experimental | Group I Receives: Drug: Spironolactone and conivaptan |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cross sectional study
Correlation between severity of pulmonary hypertension and neurohumoral activation, Regional Blood Flow (RBF) \& Transcatheter Pulmonary Valve (TPV). Acute study:electrolyte-free water and sodium excretion. Cohort Study: Composite of Cardiac index (CI),brain natriuretic peptide (BNP) and Right Atrial Pressure (RAP)
Measured: 18 months
Secondary outcomes (1)
Cross-sectional Study
Correlations between mean pulmonary artery pressure, pulmonary vascular resistance; and neurohumoral activation, glomerular filtration rate (GFR) and Transcatheter Pulmonary Valve (TPV). Acute study:correlation between response to drug and severity of disease.
Measured: 18 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Dec 2008 (estimated)
- Study startJan 2009
- Primary completionJul 2010
- Study completionDec 2010
Why it stopped: Only 1 patient recruited, and he withdrew
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Right Heart FailureStudies of the same condition, open and under way.
- More trials run by University of Colorado, DenverThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Colorado, Denver
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Shweta Bansal, MD, Principal investigator, UCHSC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00811486
- Sponsor's protocol ID
- 07-1022
- Status last verified
- Jan 2013
- First submitted
- 18 Dec 2008
- Last updated
- 28 Jan 2013
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 28 Jan 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Body Volume Regulation in Pulmonary Arterial Hypertension With Right Ventricular Failure
- ClinicalTrials.gov ID
- NCT00811486
- Acronym / sponsor ID
- 07-1022
- Conditions
- Right Heart Failure, Pulmonary Hypertension
- Study type
- Interventional
- Recruitment status
- WithdrawnReason stopped: Only 1 patient recruited, and he withdrew
- Enrolment
- 0 participants (actual)
- Lead sponsor
- University of Colorado, DenverUniversity, hospital or other
- Study start
- Jan 2009
- Primary completion
- Jul 2010 (actual)
- Study completion
- Dec 2010 (actual)
- First posted
- 19 Dec 2008 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Secondary hyperaldosteronism and the non-osmotic release of arginine vasopressin (AVP) are the major factors in sodium and water retention in pulmonary arterial hypertension with right ventricular failure. Natriuretic doses of mineralocorticoid antagonist and aquaretic doses of V2 receptor antagonist will attenuate the sodium and water retention respectively, and be associated with clinical improvement.
Detailed description
Much has been learned about the pathophysiological state that underlies the development of increased total body volume and edema in left ventricular failure. Very little, however, is known about the mechanism underlying systemic hypervolemia in patients with isolated right ventricular dysfunction. Patients with pulmonary arterial hypertension (PAH) represent a model of isolated right ventricular dysfunction in which these mechanisms may be elucidated. Aldosterone has now been shown to have many properties that are likely to be detrimental in congestive heart failure (CHF) and that are not shared by angiotensin II. Aldosterone blockade has been associated with improved mortality in patients with left ventricular failure, already receiving an angiotensin converting enzyme inhibitor. But its role in isolated right ventricular failure has not been elucidated. The plasma arginine vasopressin levels are disproportionately elevated for the degree of serum osmolarity in patients with heart failure and result in water retention and hyponatremia. Conivaptan, a vasopressin receptor antagonist, appears to reduce body weight and improve signs of left heart failure, though there is no study to evaluate its role in right ventricular failure with edema.
This study will examine the role of spironolactone and conivaptan in patients with right ventricular failure and pathophysiology of sodium and water retention in these patients.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Usual care | No intervention | –Group II |
| Spironolactone and conivaptan | Experimental | Drug: Spironolactone and conivaptanGroup I |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- 1. Patients with World Health Organization (WHO) group 1 pulmonary arterial hypertension [51], excluding patients with portal hypertension, meeting the following hemodynamic parameters:
- Mean pulmonary artery pressure (mPAP) >35 mmHg at rest, and
- Pulmonary capillary wedge pressure (PCWP) <15 mmHg, and
- Pulmonary vascular resistance (PVR) >1.5 wood units, and 2. Age 18 to 75 years 3. Right ventricular failure defined by right atrial pressure >7 mmHg along with either dilated right ventricle, or absence of inferior vena cava collapse or BNP >100 pg/ml 4. Patients of childbearing age must be practicing effective birth control. 5. Normal left ventricular function as assessed by echocardiogram, multiple gated acquisition (MUGA) cardiac scan, or invasive left ventriculography.
Key exclusion criteria (5 listed)
- 1. Group 2-5 pulmonary hypertension as defined by WHO.
- Pulmonary hypertension with left heart failure (as assessed by echocardiogram, multiple gated acquisition (MUGA) cardiac scan, or invasive left ventriculography).
- Pulmonary hypertension associated with lung disease and/or hypoxemia (e.g. chronic obstructive pulmonary disease, interstitial lung disease, sleep disordered breathing, chronic exposure to high altitude, alveolar hypoventilation syndrome.
- Pulmonary hypertension due to chronic thrombotic and/or embolic diseases
- Miscellaneous such as sarcoidosis, compression of pulmonary vessels by adenopathy, tumor 2. Systemic hypertension, defined as a systolic pressure >140 mmHg or a diastolic blood pressure >90 mmHg 3. Patients taking angiotensin converting enzyme (ACE) inhibitor or angiotensin receptor blockers (ARBs) 4. Pregnancy 5. Chronic kidney disease (serum creatinine > 2.5mg/dl, proteinuria >500 mg/day, hematuria) 6. Cirrhosis or portal hypertension 7. Inability to provide informed consent. 8. Allergy to conivaptan or spironolactone. 9. Active malignancy 10. Patients receiving spironolactone 11. Enrollment in other interventional studies. 12. Patients on Highly Active Antiretroviral Therapy (HAART)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Spironolactone and conivaptanTablet, 50 mg to 200 mg, daily, orally 20 mg intravenously one time over 30 minutes | Drug | Spironolactone and conivaptan |
Primary outcome
Cross sectional study
Time frame: 18 months
Correlation between severity of pulmonary hypertension and neurohumoral activation, Regional Blood Flow (RBF) \& Transcatheter Pulmonary Valve (TPV). Acute study:electrolyte-free water and sodium excretion. Cohort Study: Composite of Cardiac index (CI),brain natriuretic peptide (BNP) and Right Atrial Pressure (RAP)
1 secondary outcome
Cross-sectional Study
Time frame: 18 months
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Jan 2013.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Shweta Bansal, MD principal investigator
UCHSC
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Spironolactone and conivaptan in people with Right Heart Failure and Pulmonary Hypertension, run by University of Colorado, Denver at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: withdrawn, as of the sponsor's last update on 28 Jan 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cross sectional study (time frame: 18 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Jan 2013; AzTrials last refreshed its copy on 8 Nov 2026.