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Congestive Heart FailurePhase 3NCT00052026

Safety and Efficacy Study of Carvedilol to Treat Children With Congestive Heart Failure

A Phase 3 study testing carvedilol in people with Congestive Heart Failure, run by Shaddy, Robert, M.D. at 21 sites in United States.

Completed

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

Official record
Search all trials

Trial summary

The purpose of this study is to determine whether a new medicine, called carvedilol, improves symptoms and heart function in children who have congestive heart failure (diminished function of their heart muscle that pumps blood to the body). Read more about this study

Who is it for?
Ages 1 day to 17 years
Conditions the study is for
Congestive Heart Failure
What is being tested?
carvedilol
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
161 participants
Where
21 sitesUnited States
Study dates
May 2000to Jul 2006
Phase
Phase 3
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 1 day to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Male or female children from birth through 17 years of age with chronic symptomatic CHF due to systemic ventricular systolic dysfunction who are receiving standard heart failure therapy will be eligible. Since adolescents with left ventricular dysfunction are very similar to adults with this disease, this study will focus recruitment in the prepubertal age group of children, including children from birth through Tanner Stage 3. The number of adolescents enrolled will be limited to approximately 10% of study enrollment. However, teenagers with single ventricles or morphologic right ventricles as systemic ventricles represent an important population that is unique to pediatric cardiology. The 10% limitation will only apply to teenagers who have dilated cardiomyopathies since these patients may be similar to young adults with dilated cardiomyopathies. Adolescents will be defined as Tanner Stage 4 through age 17.
  • A diagnosis of CHF by NYHA Class II-IV (generally, children older than 5 years of age) or Ross' classification of CHF Class II-IV (12) (generally, children less than 5 years old) for at least 1 month (at least 2 weeks, for neonates) prior to screening.
  • An estimated ejection fraction less than 40% in patients with systemic left ventricular dysfunction or qualitative evidence of a dilated ventricle with moderate systemic ventricular systolic dysfunction in patients with right ventricular or single ventricular physiology, documented within 4 weeks of randomization. Patients may be enrolled based on these criteria as determined by the site. However, all echocardiograms will be reviewed and interpreted by the Data Coordinating Center (DCC) at the University of Utah. Upon subsequent review by the DCC, if it is determined that either the ejection fraction is greater than or equal to 40% or the ventricular function is not moderate to severely decreased, patients will be enrolled. However, their data analysis will be based upon the findings from the DCC at the University of Utah.
  • The etiology of the cardiomyopathy will include idiopathic dilated cardiomyopathy, post-viral myocarditis cardiomyopathy, anthracycline-induced cardiomyopathy, ischemic cardiomyopathies (e.g., Kawasaki's disease, repaired anomalous left coronary artery arising from the pulmonary artery, d-TGA s/p arterial switch), cardiomyopathies associated with single ventricle with ventricular systolic dysfunction, corrected transposition, etc. Excluded from enrollment will be dilated cardiomyopathies secondary to muscular dystrophies, hemoglobinopathies, HIV, carnitine deficiency, and systemic ventricular dysfunction due to ventricular outflow obstruction.
  • Patients undergoing treatment for CHF with standard CHF therapy, such as diuretic, digoxin and ACE inhibitors. All patients should be receiving ACE inhibitors prior to enrollment in this study unless contraindicated or intolerant. If intolerance has been established, the patient must have been withdrawn from these drugs for at least one month prior to randomization. Other medications such as hydralazine, nitrates or amiodarone may also be used. Therapy with amiodarone should not have started or stopped within 2 months of randomization.
  • All patients should be receiving diuretics prior to enrollment in this study unless contraindicated or intolerant. Patients must be in optimal fluid status prior to enrollment.
  • Patients must be receiving a stable regimen of standard CHF medications for a period of at least one month (2 weeks in neonates) at the time of randomization into the study.

Who cannot join

  • Patients with any of the following will be excluded from the study:
  • NYHA or Ross' CHF Classification Class I (asymptomatic).
  • Patients actively listed for transplantation at time of entry into the study or anticipated to undergo heart transplantation or corrective heart surgery during the 8 months following entry into the study. However, those patients in whom listing for transplantation is anticipated but may be waiting a long period of time (greater than 8 months), such as Status 2 patients, may be considered for enrollment in this study.
  • Sustained or symptomatic ventricular dysrhythmias uncontrolled by drug therapy or the use of an implantable defibrillator, and/or significant cardiac conduction defects, e.g., 2nd degree or 3rd degree AV block, or sick sinus syndrome, unless a functioning pacemaker is in place.
  • Uncorrected primary obstructive or severe regurgitative valvular disease, nondilated (restrictive) or hypertrophic cardiomyopathy, or significant systemic ventricular outflow obstruction.
  • Dilated cardiomyopathies secondary to muscular dystrophies, hemoglobinopathies, HIV, carnitine deficiency, and systemic ventricular dysfunction due to ventricular outflow obstruction.
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  • Active myocarditis.
  • Unacceptable blood pressures and heart rates. Sitting (supine in infants) systolic blood pressure must be > 85 mm Hg in teens, > 75 mm Hg in school-aged children, and > 65 mm Hg in infants (12). Resting heart rate must be greater than the 2nd percentile for age (13).
  • Renovascular hypertension or evidence of pulmonary hypertension (pulmonary vascular resistance index > 6 Wood units-m2) unresponsive to vasodilator agents such as oxygen, nitroprusside, or nitric oxide.
  • History or current clinical evidence of moderate-to-severe obstructive pulmonary disease or reactive airway diseases (e.g., asthma) requiring therapy.
  • Significant renal (serum creatinine >2.0), hepatic (serum AST and/or ALT > 3 times upper limit of normal), gastrointestinal, or biliary disorders that could impair absorption, metabolism, or excretion of orally administered medications.
  • Concurrent terminal illness or other severe disease (e.g., active neoplasm) or other significant laboratory value(s) which, in the opinion of the investigator, could preclude participation or survival.
  • Endocrine disorders such as primary aldosteronism, pheochromocytoma, hyper- or hypothyroidism, insulin-dependent diabetes mellitus.
  • Unwillingness or inability to cooperate, or for the parents or guardians to give consent, or for the child to give assent, or any condition of sufficient severity to impair cooperation in the study.
  • Girls of child bearing potential who are pregnant, lactating, or sexually active and not taking adequate contraceptive precautions (e.g., IUD or oral contraceptives for 3 months prior to entry into the study).
  • Use of an investigational drug within 30 days of randomization, or within 5 half-lives of the investigational drug (the longer period will apply); investigational vaccines or biological agents (e.g., the monoclonal antibody Synagis), may be granted exceptions through consultation with the principal investigator and GlaxoSmithKline.
  • History of drug sensitivity or allergic reaction to a-blockers or ß-blockers.
  • Use of any of the following medications within two weeks of randomization:
  • Monoamine oxidase (MAO) inhibitors
  • Calcium entry blockers
  • Alpha blockers, or labetalol
  • Disopyramide, flecainide, encainide, moricizine, propafenone
  • Intravenous ß-adrenergic agonists (including intravenous inotropes such as dobutamine) or intravenous vasodilator agents such as amrinone or milrinone
  • Intravenous CHF medications (e.g., diuretics, digoxin)
  • Treatment with b-adrenergic blockers, including sotalol or carvedilol within 2 months of randomization.

Trial locations and contacts

21 sites in 1 country.

21 sites in 1 country

United States21 sites
  • C.S. Mott Children's Hospital

    Ann Arbor, Michigan, 48109

  • University of Alabama

    Birmingham, Alabama, 35249-6852

  • Children's Hospital, Boston

    Boston, Massachusetts, 02115

  • Children's Memorial Hospital

    Chicago, Illinois, 60614

  • UT Southwestern Medical Center

    Dallas, Texas, 75235-7794

  • University of Colorado

    Denver, Colorado, 80218

  • Children's Hospital of Michigan

    Detroit, Michigan, 48201-2196

  • Texas Children's Hospital

    Houston, Texas, 77030

  • Mattel Children's Hospital at UCLA

    Los Angeles, California, 90025

  • Children's Hospital Los Angeles

    Los Angeles, California, 90027

  • University of Miami

    Miami, Florida, 33101

  • Vanderbilt Children's Hospital

    Nashville, Tennessee, 37332

  • NYU Medical Center

    New York, New York, 10016

  • Columbia University

    New York, New York, 10032-1537

  • Stanford University

    Palo Alto, California, 94303

  • Children's Hospital of Philadelphia

    Philadelphia, Pennsylvania, 19104

  • Children's Hospital of Pittsburgh

    Pittsburgh, Pennsylvania, 15213

  • University of Utah

    Salt Lake City, Utah, 84132

  • Seattle Childrens Hospital and Regional Medical Center

    Seattle, Washington, 98105

  • Washington University

    St Louis, Missouri, 63110-1014

  • University of Southern Florida

    St. Petersburg, Florida, 33701

Other trials in United States

About this study

Official title: A Multicenter, Placebo-Controlled, 8-Month Study of the Effect of Twice Daily Carvedilol in Children With Congestive Heart Failure Due to Systemic Ventricular Systolic Dysfunction

The purpose of this study is to determine whether a new medicine, called carvedilol, improves symptoms and heart function in children who have congestive heart failure (diminished function of their heart muscle that pumps blood to the body). To accomplish this, we will give carvedilol to some patients who have diminished heart function and congestive heart failure and see whether symptoms and heart function are better at the end of an 8 month period in those who received carvedilol compared to the other patients who did not receive carvedilol. We will be testing 2 different doses of carvedilol compared to no additional medicine.

Read the detailed description

Overactivity of the sympathetic nervous system is thought to contribute to the pathophysiology of congestive heart failure (CHF). Blockade of the sympathetic nervous system with β-adrenergic inhibitors could be expected to ameliorate these detrimental effects in a manner analogous to the effects of the angiotensin converting enzyme inhibitors on the overactive renin-angiotensin system.

Carvedilol may be superior to pure beta-blockers in the treatment of CHF through its mechanism of action of blocking not only β-receptors but also α-receptors, which would allow vasodilation to reduce the afterload on the failing heart. Since beta-blockers may initially produce a negative inotropic effect on the heart, long term treatment has been needed to show benefits of removal of the adrenergic stimulation. The investigators will monitor the safety and efficacy of carvedilol administration in children with chronic CHF due to systemic ventricular dysfunction.

Being tested
carvedilol, placebo
Keywords
Adolescent, Adrenergic alpha-Antagonists/therapeutic use, Adrenergic alpha-Antagonists/pharmacokinetics, Adrenergic alpha-Antagonists/administration & dosage, Adrenergic beta-Antagonists/therapeutic use, Adrenergic beta-Antagonists/pharmacokinetics, Adrenergic beta-Antagonists/administration & dosage, Age Factors, Carbazoles/therapeutic use, Carbazoles/administration & dosage, Child, Child, Preschool, Drug Administration Schedule, Female, Heart Failure, Congestive/etiology, Heart Failure, Congestive/drug therapy, Heart Failure, Congestive/blood, Human, Infant, Infant, Newborn
Medical subject headings
Heart Failure, Ventricular Dysfunction

What participants receive

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

  • carvedilolDrug

    Also called Coreg

    low-dose carvedilol administered twice daily for 8 months

  • placeboDrug

    administered twice daily for 8 months

  • carvedilolDrug

    Also called Coreg

    high-dose carvedilol administered twice daily for 8 months

Study groups in NCT00052026
Study groupRoleWhat they receive
1Placebo comparatorPlacebo
Receives: Drug: placebo
2ExperimentalLow-dose carvedilol
Receives: Drug: carvedilol
3Experimentalhigh-dose carvedilol
Receives: Drug: carvedilol

What is being measured

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

  1. The primary efficacy variable is a CHF composite response.

    Measured: 8 months

Secondary outcomes (1)
  1. Selected individual components of the CHF composite of clinical outcomes

    Measured: 8 months

Timeline

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

  1. First posted23 Jan 2003 (estimated)
  2. Study startMay 2000
  3. Primary completionJun 2005
  4. Study completionJul 2006

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
161 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00052026
Sponsor's protocol ID
SB 105517-321
Status last verified
Dec 2008
First submitted
21 Jan 2003
Last updated
25 Dec 2008
Results posted
No
Data monitoring committee
Yes

Publications

  • Shaddy RE, Curtin EL, Sower B, Tani LY, Burr J, LaSalle B, Boucek MM, Mahony L, Hsu DT, Pahl E, Burch GH, Schlencker-Herceg R. The Pediatric Randomized Carvedilol Trial in Children with Heart Failure: rationale and design. Am Heart J. 2002 Sep;144(3):383-9. doi: 10.1067/mhj.2002.124402.

    PubMed 12228773
  • Boucek MM, Novick RJ, Bennett LE, Fiol B, Keck BM, Hosenpud JD. The Registry of the International Society of Heart and Lung Transplantation: first official pediatric report--1997. J Heart Lung Transplant. 1997 Dec;16(12):1189-206. No abstract available.

    PubMed 9436131
  • Gilbert EM, Anderson JL, Deitchman D, Yanowitz FG, O'Connell JB, Renlund DG, Bartholomew M, Mealey PC, Larrabee P, Bristow MR. Long-term beta-blocker vasodilator therapy improves cardiac function in idiopathic dilated cardiomyopathy: a double-blind, randomized study of bucindolol versus placebo. Am J Med. 1990 Mar;88(3):223-9. doi: 10.1016/0002-9343(90)90146-5.

    PubMed 1968710
  • Waagstein F, Bristow MR, Swedberg K, Camerini F, Fowler MB, Silver MA, Gilbert EM, Johnson MR, Goss FG, Hjalmarson A. Beneficial effects of metoprolol in idiopathic dilated cardiomyopathy. Metoprolol in Dilated Cardiomyopathy (MDC) Trial Study Group. Lancet. 1993 Dec 11;342(8885):1441-6. doi: 10.1016/0140-6736(93)92930-r.

    PubMed 7902479
  • Shaddy RE, Olsen SL, Bristow MR, Taylor DO, Bullock EA, Tani LY, Renlund DG. Efficacy and safety of metoprolol in the treatment of doxorubicin-induced cardiomyopathy in pediatric patients. Am Heart J. 1995 Jan;129(1):197-9. doi: 10.1016/0002-8703(95)90061-6. No abstract available.

    PubMed 7817916
  • Shaddy RE. Beta-blocker therapy in young children with congestive heart failure under consideration for heart transplantation. Am Heart J. 1998 Jul;136(1):19-21. doi: 10.1016/s0002-8703(98)70176-0.

    PubMed 9665213
  • Shaddy RE, Tani LY, Gidding SS, Pahl E, Orsmond GS, Gilbert EM, Lemes V. Beta-blocker treatment of dilated cardiomyopathy with congestive heart failure in children: a multi-institutional experience. J Heart Lung Transplant. 1999 Mar;18(3):269-74. doi: 10.1016/s1053-2498(98)00030-8.

    PubMed 10328154
  • Packer M, Bristow MR, Cohn JN, Colucci WS, Fowler MB, Gilbert EM, Shusterman NH. The effect of carvedilol on morbidity and mortality in patients with chronic heart failure. U.S. Carvedilol Heart Failure Study Group. N Engl J Med. 1996 May 23;334(21):1349-55. doi: 10.1056/NEJM199605233342101.

    PubMed 8614419
  • Bristow MR, Gilbert EM, Abraham WT, Adams KF, Fowler MB, Hershberger RE, Kubo SH, Narahara KA, Ingersoll H, Krueger S, Young S, Shusterman N. Carvedilol produces dose-related improvements in left ventricular function and survival in subjects with chronic heart failure. MOCHA Investigators. Circulation. 1996 Dec 1;94(11):2807-16. doi: 10.1161/01.cir.94.11.2807.

    PubMed 8941106
  • Olsen SL, Gilbert EM, Renlund DG, Taylor DO, Yanowitz FD, Bristow MR. Carvedilol improves left ventricular function and symptoms in chronic heart failure: a double-blind randomized study. J Am Coll Cardiol. 1995 May;25(6):1225-31. doi: 10.1016/0735-1097(95)00012-S.

    PubMed 7722114
  • Richards AM, Doughty R, Nicholls MG, Macmahon S, Ikram H, Sharpe N, Espiner EA, Frampton C, Yandle TG. Neurohumoral prediction of benefit from carvedilol in ischemic left ventricular dysfunction. Australia-New Zealand Heart Failure Group. Circulation. 1999 Feb 16;99(6):786-92. doi: 10.1161/01.cir.99.6.786.

    PubMed 9989964
  • Ross RD, Daniels SR, Schwartz DC, Hannon DW, Shukla R, Kaplan S. Plasma norepinephrine levels in infants and children with congestive heart failure. Am J Cardiol. 1987 Apr 1;59(8):911-4. doi: 10.1016/0002-9149(87)91118-0.

    PubMed 3825955
  • Bristow MR, O'Connell JB, Gilbert EM, French WJ, Leatherman G, Kantrowitz NE, Orie J, Smucker ML, Marshall G, Kelly P, et al. Dose-response of chronic beta-blocker treatment in heart failure from either idiopathic dilated or ischemic cardiomyopathy. Bucindolol Investigators. Circulation. 1994 Apr;89(4):1632-42. doi: 10.1161/01.cir.89.4.1632.

    PubMed 7908610
  • From Nadas AS, Fyler DC: Pediatric Cardiology. 3rd Ed. WB Saunders, Philadelphia, 1972.

  • From Harriet Lane Handbook, 14th Edition, page 132.

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing carvedilol in people with Congestive Heart Failure, run by Shaddy, Robert, M.D. at 21 sites 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 7 inclusion and 25 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 25 Dec 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 21 sites 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The primary efficacy variable is a CHF composite response. (time frame: 8 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 NCT00052026, which also lists 16 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 25 Dec 2008.

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