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Pulmonary HypertensionPAHTCHNCT01586156

PAHTCH Pulmonary Arterial Hypertension Treatment With Carvedilol for Heart Failure (Carvedilol)

A study testing Carvedilol in people with Pulmonary Hypertension, run by The Cleveland Clinic at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Pulmonary arterial hypertension (PAH) is a progressive disease of the pulmonary vasculature leading to elevated pulmonary pressure and right ventricular (RV) dysfunction with heart failure. Measures of RV function are better predictors of mortality and long term outcomes than pulmonary vascular resistance. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Pulmonary Hypertension
What is being tested?
Carvedilol
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
1 siteUnited States
Study dates
Dec 2012to Jul 2016
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Men and women age 18 or older not greater than age 65 years
  • Diagnosis of pulmonary arterial hypertension class 1, 3, 4, 5 (Dana Point 2008)
  • NYHA (New York Health Association)/WHO (World Health Organization) Class I-III
  • PAH medications must have been initiated according to the latest consensus statement recommendations and remained stable for the last 30 days
  • Women of child-bearing age must use a double-barrier local contraception till completion of the study
  • Subjects must demonstrate understanding of the study, sign the informed consent, and have a reliable method of communication for contact and ability to comply with the study requirements

Who cannot join

  • Participation in any other treatment studies during enrollment
  • Significant illness in the past 30 days requiring hospitalization
  • Hepatic insufficiency (transaminase levels > 4 fold the upper limit of normal or bilirubin > 2 fold the upper limit of normal),
  • History of HIV, Hepatitis B or C
  • Serum creatinine > 2.8 mg/dl
  • Pregnancy, breast-feeding, or lack of safe contraception
Show all 13Show fewer
  • Acute decompensated heart failure within past 30 days
  • Known allergy or intolerance to carvedilol or other β blockers
  • Significant, persistent bradycardia (resting heart rate < 50 bpm) or hypotension (systolic blood pressure < 100 mmHg or mean blood pressure < 70 mmHg) at the time of enrollment
  • Second or third-degree AV (Atrial Ventricular) block without pacemaker
  • Use of CYP2D6 isoenzyme inhibitors (such as quinidine, fluoxetine, paroxetine, propafenone) which increase drug levels and result in greater vasodilating effects and hypotension
  • Use of hypotensive drugs that deplete catecholamines (such as reserpine and monoamine oxidase inhibitors) which may lead to greater signs of hypotension or bradycardia
  • Other medical and psychosocial conditions as determined by principal investigator deemed unsuitable for enrollment

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Cleveland Clinic

    Cleveland, Ohio, 44195

Other trials in United States

About this study

Official title: Pulmonary Arterial Hypertension Treatment With Carvedilol for Heart Failure

Pulmonary arterial hypertension (PAH) is a progressive disease of the pulmonary vasculature leading to elevated pulmonary pressure and right ventricular (RV) dysfunction with heart failure. Measures of RV function are better predictors of mortality and long term outcomes than pulmonary vascular resistance. The interaction between RV function and the pulmonary circulation is not fully understood, but increased after load appears insufficient to explain right heart failure. Yet, all approved PAH therapies target vasodilation of the pulmonary vasculature to lower pressures

Read the detailed description

Pulmonary arterial hypertension (PAH) is a serious condition characterized by endothelial dysfunction leading to pulmonary vascular constriction, smooth muscle and endothelial proliferation, and progressive right-sided heart failure. The severity of pulmonary hypertension is mostly determined by the response of the right ventricle (RV) to the increased afterload or pulmonary pressures, and RV failure is the leading cause of death in PAH. Most accepted therapies for PAH have been aimed at vasodilation of the pulmonary vasculature, and there has been little thought that PAH patients would benefit from traditional left heart failure treatments. A cornerstone therapy in left heart failure is £]-adrenergic receptor blockade because of its ability to reverse cardiac remodeling and improve clinical outcomes, despite decades of concern regarding its propensity to exacerbate heart failure. It has been reported to reduce mortality by about 30% in patients, and while the precise mechanisms that contribute to its beneficial effects remain to be elucidated, there is evidence that patients with underlying contractile reserve (i.e., via recruitment of viable myocardium with £]-adrenergic receptor stimulation) may experience greater recovery of their cardiac function. In a study using rats with pulmonary hypertension treated with £] blocker, RV function improved, and maladaptive myocardial remodeling was prevented.

Being tested
Carvedilol, placebo
Medical subject headings
Hypertension, Pulmonary

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CarvedilolDrug

    Also called low fixed dose, escalating dose

    Group 1 will receive 3.125mg carvedilol twice daily for six months.Group 2 will receive carvedilol in a dose escalation scheme.

  • placeboDrug

    Placebo will be taken twice daily for 6 months

Study groups in NCT01586156
Study groupRoleWhat they receive
Open Label CarvedilolActive comparatorEligible subjects will receive open label carvedilol therapy at a dose 3.125 mg twice daily for one week. Subjects will be admitted overnight to the CRU (Clinical Research Unit) for the first-dose challenge of carvedilol. Subjects will take the medication for one week and at the end of one week, eligible subjects will be randomized to one of two groups (blinded). Group 1 will receive 3.125mg twice daily for six months.Group 2 will receive carvedilol in a dose escalation scheme. They will be given 3.125mg tablets to take twice daily for one week, followed by 6.25 mg twice daily for one week, followed by 12.5mg twice daily for one week with the option to increase to the max dose of 25mg twice daily for the remainder of the study.
Receives: Drug: Carvedilol
Placebo ArmPlacebo comparatorEligible subjects will receive open label carvedilol therapy at a dose 3.125 mg twice daily for one week. Subjects will be admitted overnight for the first-dose challenge of carvedilol. After one week run in phase, subjects will be placed on placebo. Subjects and Investigators will be blinded to the group assignment for the duration of the study.
Receives: Drug: placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cardiac Glucose Uptake in FDG-PET (Fluorodeoxyglucose-Positron Emission Tomography)

    We hypothesize that use of carvedilol in patients with PAH (Pulmonary Arterial Hypertension) will decrease the cardiac glucose utilization, and this will be measurable as a drop in fasting FDG-PET standardized uptake values of the heart at 6 months as compared to baseline

    Measured: 6 months

Secondary outcomes (2)
  1. Urinary cAMP (Cyclic Adenosine Monophosphate)/Creatinine

    We hypothesize that use of carvedilol in patients with PAH will increase beta adrenergic receptor function and this will be measurable as an increase in cAMP measured in the urine at 6 months in participants in dose escalation carvedilol.

    Measured: 6 months

  2. Beta-Adrenergic Receptor (Alprenolol Binding Assay)

    We hypothesize that use of carvedilol in patients with PAH will increase beta- adrenergic receptor availability, and this will be measurable as a increase in alprenolol binding over time of drug use.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2012 (estimated)
  2. Study startDec 2012
  3. Primary completionJul 2016
  4. Study completionJul 2016

Resources

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01586156
Sponsor's protocol ID
11-1198
Other IDs
R01HL115008
Acronym
PAHTCH
Status last verified
Nov 2018
First submitted
23 Apr 2012
Last updated
5 Dec 2018
Data monitoring committee
Yes

Publications

  • Farha S, Saygin D, Park MM, Cheong HI, Asosingh K, Comhair SA, Stephens OR, Roach EC, Sharp J, Highland KB, DiFilippo FP, Neumann DR, Tang WHW, Erzurum SC. Pulmonary arterial hypertension treatment with carvedilol for heart failure: a randomized controlled trial. JCI Insight. 2017 Aug 17;2(16):e95240. doi: 10.1172/jci.insight.95240. eCollection 2017 Aug 17.

    PubMed 28814664
  • Saygin D, Highland KB, Farha S, Park M, Sharp J, Roach EC, Tang WHW, Thomas JD, Erzurum SC, Neumann DR, DiFilippo FP. Metabolic and Functional Evaluation of the Heart and Lungs in Pulmonary Hypertension by Gated 2-[18F]-Fluoro-2-deoxy-D-glucose Positron Emission Tomography. Pulm Circ. 2017 Apr-Jun;7(2):428-438. doi: 10.1177/2045893217701917. Epub 2017 Mar 10.

    PubMed 28597761
  • Park JH, Park MM, Farha S, Sharp J, Lundgrin E, Comhair S, Tang WH, Erzurum SC, Thomas JD. Impaired Global Right Ventricular Longitudinal Strain Predicts Long-Term Adverse Outcomes in Patients with Pulmonary Arterial Hypertension. J Cardiovasc Ultrasound. 2015 Jun;23(2):91-9. doi: 10.4250/jcu.2015.23.2.91. Epub 2015 Jun 26.

    PubMed 26140151
  • Stephens OR, Weiss K, Frimel M, Rose JA, Sun Y, Asosingh K, Farha S, Highland KB, Prasad SVN, Erzurum SC. Interdependence of hypoxia and beta-adrenergic receptor signaling in pulmonary arterial hypertension. Am J Physiol Lung Cell Mol Physiol. 2019 Sep 1;317(3):L369-L380. doi: 10.1152/ajplung.00015.2019. Epub 2019 Jun 26.

    PubMed 31242023
  • Cheong HI, Farha S, Park MM, Thomas JD, Saygin D, Comhair SAA, Sharp J, Highland KB, Tang WHW, Erzurum SC. Endothelial Phenotype Evoked by Low Dose Carvedilol in Pulmonary Hypertension. Front Cardiovasc Med. 2018 Dec 12;5:180. doi: 10.3389/fcvm.2018.00180. eCollection 2018.

    PubMed 30619887

Questions about this trial

What is this clinical trial studying?

A study testing Carvedilol in people with Pulmonary Hypertension, run by The Cleveland Clinic 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 6 inclusion and 13 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: finished, as of the sponsor's last update on 5 Dec 2018. 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. Some participants in this study may receive a placebo. 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?

Yes. Results are posted in the registry (first posted 30 Nov 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Cardiac Glucose Uptake in FDG-PET (Fluorodeoxyglucose-Positron Emission Tomography) (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01586156, which also lists 5 linked publications.

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 5 Dec 2018.

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