Study to Evaluate the Safety of Twice Daily Oral Carvedilol

NCT ID: NCT00129363

Last Updated: 2008-12-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

75 participants

Study Classification

INTERVENTIONAL

Study Start Date

2002-01-31

Study Completion Date

2006-01-31

Brief Summary

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The objective of this study is to evaluate the long-term safety of carvedilol in pediatric patients with chronic heart failure, who completed the Pediatric Carvedilol Study 321. Carvedilol will be provided as open-label therapy for a period of at least 6 months (or until termination of the study) by SmithKline Beecham Corporation d/b/a GlaxoSmithKline (GSK) or the University Sponsor.

Detailed Description

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This open-label, uncontrolled, extension study is designed to assess the long-term safety of carvedilol in pediatric patients with heart failure and includes the following phases:

1. Screening Phase (coincides with the final maintenance Month 6 Visit in the 321 study
2. Down-/Up-titration Phase
3. Maintenance Phase
4. Down-titration
5. Follow-up

Conditions

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Congestive Heart Failure

Keywords

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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 Male Natriuretic Peptide, Brain/blood Placebos Propanolamines/therapeutic use Propanolamines/administration & dosage Prospective Studies Support, Non-U.S. Gov't Treatment Outcome Ventricular Dysfunction/drug therapy Ventricular Dysfunction/complications Ventricular Dysfunction/blood Ventricular Function/drug effects Ventricular Remodeling/drug effects

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Interventions

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Carvedilol

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Male or female patients with chronic symptomatic congestive heart failure (CHF) due to systemic ventricular systolic dysfunction, who are receiving standard heart failure therapy and have successfully completed the maintenance phase of the Pediatric Carvedilol Study 321.
* Parent or guardian of patient able and willing to give written informed consent. The written assent from children \> 9 years of age is also required.

Exclusion Criteria

* A patient who, in the opinion of the investigator, would not benefit from open-label carvedilol.
* A patient who, in the opinion of the investigator, is incapable of cooperating with the requirements of this study.
* A patient treated with the following medications at the time of entry in the study:

* Monoamine oxidase (MAO) inhibitors;
* Calcium entry blockers;
* α- blockers, or labetalol;
* Disopyramide, flecainide, encainide, moricizine, propafenone;
* Intravenous inotropes such as dobutamine or intravenous vasodilator agents such as amrinone or milrinone;
* Intravenous CHF medications (e.g. diuretics, digoxin);
* Beta-blockers, other than double-blind carvedilol.
* Uncorrected primary obstructive or severe regurgitative valvular disease, nondilated (restrictive) or hypertrophic cardiomyopathy, or significant systemic ventricular outflow obstruction.
* A patient with any of the following contra-indications to beta-blocker therapy:

* Heart rate \< 2nd percentile for age;
* Unacceptable blood pressure. 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;
* Sick sinus syndrome, second or third degree atrioventricular (AV) block, unless treated with a permanent pacemaker;
* History or current clinical evidence of moderate-to-severe obstructive pulmonary disease or reactive airway diseases (e.g., asthma) requiring therapy;
* Unstable insulin-dependent diabetes mellitus.
* 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

* 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;
* Endocrine disorders such as pheochromocytoma, active hyperthyroidism and untreated hypothyroidism;
* Any illness other than heart failure that may limit survival within 1 year (e.g. neoplasm);
* Girls of childbearing potential who are pregnant or sexually active and not taking adequate contraceptive precautions (e.g., intrauterine device \[IUD\] or oral contraceptives).
* A patient who received any investigational drug within the preceding 30 days except blinded medication in Pediatric Carvedilol Study 321. An investigational drug is defined as any agent (placebo or drug) dispensed as part of a research study.
Minimum Eligible Age

1 Day

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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GlaxoSmithKline

INDUSTRY

Sponsor Role collaborator

Shaddy, Robert, M.D.

INDIV

Sponsor Role lead

Responsible Party

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The Children's Hospital of Philadelphia

Principal Investigators

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Robert E Shaddy, MD

Role: PRINCIPAL_INVESTIGATOR

University of Utah

Locations

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Mattel Children's Hospital at UCLA

Los Angeles, California, United States

Site Status

Children's Hospital Los Angeles

Los Angeles, California, United States

Site Status

Stanford University

Palo Alto, California, United States

Site Status

University of Colorado

Denver, Colorado, United States

Site Status

University of Miami

Miami, Florida, United States

Site Status

Children's Memorial Hospital

Chicago, Illinois, United States

Site Status

Children's Hospital, Boston

Boston, Massachusetts, United States

Site Status

C.S. Mott Children's Hospital

Ann Arbor, Michigan, United States

Site Status

Children's Hospital of Michigan

Detroit, Michigan, United States

Site Status

Washington University

St Louis, Missouri, United States

Site Status

Columbia University

New York, New York, United States

Site Status

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, United States

Site Status

Vanderbilt Children's Hospital

Nashville, Tennessee, United States

Site Status

UT Southwestern Medical Center

Dallas, Texas, United States

Site Status

Texas Children's Hospital

Houston, Texas, United States

Site Status

University of Utah

Salt Lake City, Utah, United States

Site Status

Seattle Childrens Hospital and Regional Medical Center

Seattle, Washington, United States

Site Status

Countries

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United States

Other Identifiers

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SB 105517-396

Identifier Type: -

Identifier Source: org_study_id