Congestive Heart FailurePhase 3COMPARENCT00323037
A Study to Compare the Effects of Coreg CR and Coreg IR on Heart Function in Subjects With Stable Chronic Heart Failure
A Phase 3 study testing carvedilol immediate release in people with Congestive Heart Failure, run by CTI-1, LLC at 75 sites in United States.
Trial summary
The purpose of this study is to determine if Coreg CR is as effective as Coreg IR in improving heart function in subjects with stable chronic heart failure. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Congestive Heart Failure
- What is being tested?
- carvedilol immediate release
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 318 participants
- Where
- 75 sitesUnited States
- Study dates
- Mar 2006to Jun 2008
- Phase
- Phase 3
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Male or non-pregnant female
- At least 18 years of age at the time informed consent is signed
- Stable, chronic, mild to severe heart failure as defined as subjects with symptoms of heart failure who do not require IV diuretics, inotropes, or vasodilators or those that require support with a left ventricular assist device
- Angiotensin converting enzyme inhibitors or angiotensin receptor blockers should be prescribed to all patients with HF due to LV systolic dysfunction with reduced LVEF unless contraindicated or intolerant to use
- At screening, subject has an LVEF < 40 as measured by 2-D echocardiography
- Willing to provide written informed consent
Who cannot join
- On beta-blocker therapy for greater than 42 days prior to consent
- Acute ischemic coronary event or coronary revascularization (PTCA, CABG, thrombolysis) within 1 week of screening echocardiography
- Scheduled or expected to be scheduled coronary revascularization within 4 weeks
- Unstable angina (angina characterized by sudden changes in the severity or length of angina attacks or a decrease in level of exertion that precipitates an episode
- Uncorrected primary obstructive or severe regurgitant valvular disease, nondilated (restrictive) or hypertrophic cardiomyopathies
- Uncontrolled ventricular arrhythmias (symptomatic or sustained ventricular arrhythmias not controlled with antiarrhythmic therapy or an implantable defibrillator)
Show all 25Show fewer
- Current treatment of calcium channel blockers except for long acting dihydropyridines
- Current treatment on any Class I or III antiarrhythmic, except amiodarone
- History of sick sinus syndrome unless a pacemaker is in place
- Second or third degree heart block unless a pacemaker is in place
- Current clinical evidence of obstructive pulmonary disease (e.g., asthma or bronchitis) requiring inhaled or oral bronchodilator or steroid therapy; or having a history of bronchospastic disease not undergoing active therapy in whom, in the investigator's opinion, treatment with study medication could provoke bronchospasm
- Expected biventricular pacemaker placement within 8 months of enrollment
- Resting systolic blood pressure <90 mmHg (based on the average of 3 readings
- Resting heart rate <50 beats per minute (bpm) (based on the average of 3 readings)
- Current decompensated heart failure
- Elevated liver enzymes (i.e., ALT or AST levels greater than 3 times upper limit of normal)
- History of drug sensitivity or allergic reaction to alpha or beta-blockers
- Contraindication or intolerance to beta-blockers
- Pregnant or lactating women and women planning to become pregnant. NOTE: Female subjects must be post-menopausal (i.e., no menstrual period for a minimum of 6 months prior to screening), surgically sterilized, using a double barrier method contraceptive, or using Depo-Provera or implanted contraceptives for at least one month prior to screening and agree to continue to use the same contraceptive method throughout the study.
- Use of an investigational drug within 30 days of enrollment
- Participation in an investigational device trial within 30 days of enrollment
- Known drug or alcohol abuse 1 year prior to enrollment
- In the opinion of the investigator the subject is known to be noncompliant with prescribed medication regimen
- Has any systemic disease, including cancer, with reduced life expectancy (<12 months)
- Has a history of psychological illness/condition that interferes with ability to understand or complete requirements of the study.
Trial locations and contacts
75 sites in 1 country.
75 sites in 1 country
United States75 sites
Albany Associates in Cardiology
Albany, New York, 12205
University of New Mexico
Albuquerque, New Mexico, 87131-0001
Blair Medical Associates
Altoona, Pennsylvania, 16602
Cardiac Disease Specialists, PC
Atlanta, Georgia, 30309
One Heart, LLC
Baltimore, Maryland, 21215
North Shore Cardiovascular Research Consortium
Bannockburn, Illinois, 60015
Tri-State Medical Group
Beaver, Pennsylvania, 15009
Bay Area Cardiology
Brandon, Florida, 33511
Buffalo Heart Group, LLP
Buffalo, New York, 14215
University of North Carolina
Chapel Hill, North Carolina, 27599
Charleston Cardiology
Charleston, South Carolina, 29403
Sterling Research Group Ltd.
Cincinnati, Ohio, 45219
The Lindner Clinical Trial Center
Cincinnati, Ohio, 45219
University Hospital
Cincinnati, Ohio, 45267-0542
Clearwater Cardiovascular and Interventional Consultants
Clearwater, Florida, 33756
South Carolina Heart Center
Columbia, South Carolina, 29204
Inland Heart Doctors Medical Group
Corona, California, 92879
Samaritan Cardiology
Corvallis, Oregon, 97330
Aurora Denver Cardiology Associates
Denver, Colorado, 80218
Rancho Los Amigos USC
Downey, California, 90242
Central Bucks Specialists
Doylestown, Pennsylvania, 18901
Luther Midelfort Mayo Health Systems
Eau Claire, Wisconsin, 54702
Minnesota Heart Clinic
Edina, Minnesota, 55435
Saint Francis Hospital
Evanston, Illinois, 60202
Comprehensive Cardiology Associates
Florence, Kentucky, 41042
White-Wilson Medical Center, PA
Fort Walton Beach, Florida, 32547
Heart Specialists
Friendswood, Texas, 77546
Green Bay HeartCare
Green Bay, Wisconsin, 54303
LeBauer Cardiovascular Research Foundation
Greensboro, North Carolina, 27401
William Bowden, DO Private Practice
Healdsburg, California, 95448
Illinois Heart and Vascular
Hinsdale, Illinois, 60521
The Care Group LLC
Indianapolis, Indiana, 46260
River Cities Cardiology
Jeffersonville, Indiana, 47130
Rocky Mountain Heart & Lung
Kalispell, Montana, 59901
Mid-America Cardiology
Kansas City, Kansas, 66160
Cardiovascular Associates
Louisville, Kentucky, 40205
Louisville Cardiology Medical Group
Louisville, Kentucky, 40207
Medical Center of the Rockies Foundation
Loveland, Colorado, 80538
Texas Cardiac Center
Lubbock, Texas, 79410
Merced Heart Associates
Merced, California, 95340
South Florida International Cardiology Consultants, Inc.
Miami, Florida, 33137-3732
Long Island Heart Associates
Mineola, New York, 11501
Hennepin County Medical Center
Minneapolis, Minnesota, 55415
Cardiology Associates
Mobile, Alabama, 36608
Mobile Heart Specialists
Mobile, Alabama, 36608
Intermountain Medical Center
Murray, Utah, 84107
New York Cardiovascular Associates
New York, New York, 10035
Oklahoma Cardiovascular Research Group
Oklahoma City, Oklahoma, 73120
Palm Beach Cardiology
Palm Beach Gardens, Florida, 33410
HeartCare Midwest
Peoria, Illinois, 61614
Cardiology Consultants of Philadelphia
Philadelphia, Pennsylvania, 19148
Mid State Medical Service
Philipsburg, Pennsylvania, 16866
Mayo Clinic Arizona
Phoenix, Arizona, 85054
Rhode Island Heart Failure Center
Providence, Rhode Island, 02903
Rockford Cardiology Research Foundation
Rockford, Illinois, 61107
Harbin Clinic
Rome, Georgia, 30165
Sutter Memorial Hospital
Sacramento, California, 95819
Regions Hospital Cardiology Research
Saint Paul, Minnesota, 55101
St. Paul Cardiology
Saint Paul, Minnesota, 55102
Heart Center
Salt Lake City, Utah, 84124
Southern California Cardiology Medical Group, Inc.
San Diego, California, 92120
Scottsdale Cardiovascular Research Institute
Scottsdale, Arizona, 85251
Buxmont Cardiology Associates, PC
Sellersville, Pennsylvania, 18960
Prairie Cardiovascular Consultants
Springfield, Illinois, 62701
Montefiore Medical Center
The Bronx, New York, 10467
Northwest Ohio Cardiology Consultants
Toledo, Ohio, 43615
South West Heart
Tucson, Arizona, 85715
Cardiology Associates Research, LLC
Tupelo, Mississippi, 38801
Medvin Clinical Research
Van Nuys, California, 91405
Iowa Heart Center
West Des Moines, Iowa, 50266
South Bay Cardiovascular Associates
West Islip, New York, 11795
Diagnostic and Clinical Cardiology
West Orange, New Jersey, 07052
Via Christi Research, Inc.
Wichita, Kansas, 67214
Winchester Medical Center
Winchester, Virginia, 22601
Wake Forest University Baptist Medical Center
Winston-Salem, North Carolina, 27157
About this study
Official title: A Multicenter,Randomized, Double Blind, Double Dummy, Parallel Group Study to Compare Effects of Coreg CR and Coreg IR on Left Ventricular End Systolic Volume Index in Subjects With Stable Chronic Heart Failure
The purpose of this study is to determine if Coreg CR is as effective as Coreg IR in improving heart function in subjects with stable chronic heart failure.
Read the detailed description
Results of clinical trials have shown beta-blockers improve symptoms and left ventricular function, reduce hospitalizations and death in heart failure, and prolong survival [MERIT-HF, CIBIS-II, Packer, 1996]. Clinical guidelines mandate use of beta-blockers in treatment of subjects with heart failure.
Carvedilol (Coreg IR) is a multiple action adrenergic receptor blocker with alpha 1, beta 1 and beta 2 receptor blockade properties. The beta-adrenergic properties are non-selective for beta 1 and beta 2 adrenergic receptors. Coreg IR, administered twice daily, is marketed in the United States for long term treatment of mild-moderate hypertension, mild to severe heart failure and subjects surviving an acute myocardial infarction with left ventricular dysfunction with or without symptomatic heart failure.
Coreg IR significantly reduces all cause mortality and the need for cardiovascular hospitalization [Packer, 1996a; Packer, 1996b; Colucci, 1996; Cohn, 1997; Olsen, 1995; Sharpe 1997]. The effect of Coreg is dose dependent [Bristow, 1996]. In subjects treated long term after an acute myocardial infarction (MI) complicated by left ventricular systolic dysfunction, Coreg IR reduced the frequency of all-cause and cardiovascular mortality, and recurrent non-fatal MIs. These beneficial effects are additional to those of evidence-based treatments for acute MI, including ACE inhibitors [Dargie, 2001].
Left Ventricular End Systolic Volume Index (LVESVI) is an important measure of ventricular function and remodeling in the evaluation of heart failure. In controlled clinical trials, Coreg IR, administered twice daily, has reduced LVESVI in subjects with ischemic heart failure. An echocardiography substudy of the Australia-New Zealand Trial [Doughty, 1997], evaluated left ventricular remodeling in 123 subjects with ischemic heart failure with an LVEF < 45 randomized to carvedilol or placebo. The LVESVI was reduced by 6.2 + 1.6 ml/m2 after 6 months and 8.7 + 2.6 ml/m2 after 12 months of carvedilol therapy compared to the placebo treated subjects. Metra et al [Metra, 2000] observed the favorable effects of carvedilol compared with metoprolol on LVEF, LV stroke volume, and pulmonary artery pressure despite similar effects on cardiovascular outcome. Both groups also showed significant decreases in LV systolic volume. Doughty et al [Doughty, 2004] observed the favorable effects of carvedilol on LV remodeling, with improved LV end-systolic volume and ejection fraction, after 6 months of treatment.
Carvedilol phosphate CR (Coreg CR) is an approved, modified release, once-daily formulation of carvedilol that is hoped to provide an advance in patient care through improved compliance with prescribed dose.
The clinical experience with various formulations of Coreg CR is limited to eight single dose studies in healthy subjects and one repeated dose study in subjects with hypertension. In total 230, adult subjects have received at least one dose of Coreg IR or one of several CR formulations across nine studies. The subjects ranged in age from 18 to 63 years; 62% were male and 69% were white. The various formulations of Coreg CR capsules were safe and well tolerated in single dose pharmacokinetic studies in doses ranging from 6.25 to 60 mg in healthy subjects. The most common adverse events were headache, dizziness and orthostatic hypotension and are all known adverse events following administration of Coreg IR [GSK Study 386, 388, 399, 400, 402, 907].
This study will be the first controlled clinical study investigating the efficacy of treatment with Coreg CR formulation [Coreg CR filled with 7.5 mg of carvedilol phosphate immediate release (IRp) microparticles, 22.5 mg of carvedilol phosphate Micropump IIa MR microparticles, and 30 mg of carvedilol phosphate Micropump IIc MR microparticles] compared to Coreg IR evaluating LVESVI in subjects with stable chronic heart failure.
- Conditions
- Congestive Heart Failure
- Being tested
- carvedilol controlled release, carvedilol immediate release
- Keywords
- heart failure
- Medical subject headings
- Heart Failure
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
carvedilol controlled releaseDrug
Also called Coreg CR
Carvedilol controlled release (10, 20, 40 or 80 mg) and placebo taken in the morning. Two placebos taken in the evening. A total of 4 pills will be taken PO daily.
carvedilol immediate releaseDrug
Also called Coreg, Coreg IR
Carvedilol immediate release (3.125, 6.25, 12.5 or 25 mg) and placebo, taken PO, twice-daily.
| Study group | Role | What they receive |
|---|---|---|
| 1 | Active comparator | Not described Receives: Drug: carvedilol immediate release |
| 2 | Active comparator | Not described Receives: Drug: carvedilol controlled release |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Left Ventricular End Systolic Volume Index (LVESVI) Characterized by 2-D Echocardiography
Maintenance Visit 3 minus Baseline. Maintenance Visit 3 occurred 24 weeks after entry into the maintenance period. The maintenance period started after completion of a titration period of variable duration.
Measured: 24 weeks after entry into the maintenance period
Secondary outcomes (16)
Change From Baseline in Left Ventricular Ejection Fraction (LVEF)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular End Systolic Volume (LVESV)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular End Diastolic Volume Index (LVEDVI)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Intraventricular Septal Thickness (IVST)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Posterior Wall Thickness (PWT)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular Mass (LVM)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in End Diastolic Dimension (EDD)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in End Systolic Dimension (ESD)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Deceleration Time
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in Early to Late Atrial Ratio (E:A Ratio)
Measured: 24 weeks after entry into the maintenance period
Change From Baseline in BNP Levels
Measured: 24 weeks after entry into the maintenance period
Incidence of Hospitalizations
Measured: Up to 32 weeks (titration and maintenance phases)
Drug Dose Tolerability
Measured: Up to 32 weeks (titration and maintenance phases)
Treatment Compliance
Measured: Up to 32 weeks (titration and maintenance phases)
Safety and Tolerability of Coreg CR
SAEs experienced
Measured: 24 weeks after entry into the maintenance phase (after unblinding)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 May 2006 (estimated)
- Study startMar 2006
- Primary completionApr 2008
- Study completionJun 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for Congestive Heart FailureStudies of the same condition, open and under way.
- 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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 318 participants (actual)
Sponsor and investigators
- Lead sponsor
- CTI-1, LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- CTI Clinical Trial and Consulting Services, GlaxoSmithKline
- Responsible party
- Sponsor
- Investigators
- Barry Greenberg, MD, Study chair
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00323037
- Sponsor's protocol ID
- 104852
- Acronym
- COMPARE
- Status last verified
- Mar 2023
- First submitted
- 5 May 2006
- Last updated
- 28 Mar 2023
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Effect of metoprolol CR/XL in chronic heart failure: Metoprolol CR/XL Randomised Intervention Trial in Congestive Heart Failure (MERIT-HF). Lancet. 1999 Jun 12;353(9169):2001-7.
PubMed 10376614The Cardiac Insufficiency Bisoprolol Study II (CIBIS-II): a randomised trial. Lancet. 1999 Jan 2;353(9146):9-13.
PubMed 10023943Packer M, Colucci WS, Sackner-Bernstein JD, Liang CS, Goldscher DA, Freeman I, Kukin ML, Kinhal V, Udelson JE, Klapholz M, Gottlieb SS, Pearle D, Cody RJ, Gregory JJ, Kantrowitz NE, LeJemtel TH, Young ST, Lukas MA, Shusterman NH. Double-blind, placebo-controlled study of the effects of carvedilol in patients with moderate to severe heart failure. The PRECISE Trial. Prospective Randomized Evaluation of Carvedilol on Symptoms and Exercise. Circulation. 1996 Dec 1;94(11):2793-9. doi: 10.1161/01.cir.94.11.2793.
PubMed 8941104Packer 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 8614419Colucci WS, Packer M, Bristow MR, Gilbert EM, Cohn JN, Fowler MB, Krueger SK, Hershberger R, Uretsky BF, Bowers JA, Sackner-Bernstein JD, Young ST, Holcslaw TL, Lukas MA. Carvedilol inhibits clinical progression in patients with mild symptoms of heart failure. US Carvedilol Heart Failure Study Group. Circulation. 1996 Dec 1;94(11):2800-6. doi: 10.1161/01.cir.94.11.2800.
PubMed 8941105Cohn JN, Fowler MB, Bristow MR, Colucci WS, Gilbert EM, Kinhal V, Krueger SK, Lejemtel T, Narahara KA, Packer M, Young ST, Holcslaw TL, Lukas MA. Safety and efficacy of carvedilol in severe heart failure. The U.S. Carvedilol Heart Failure Study Group. J Card Fail. 1997 Sep;3(3):173-9. doi: 10.1016/s1071-9164(97)90013-0.
PubMed 9330125Olsen 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 7722114Randomised, placebo-controlled trial of carvedilol in patients with congestive heart failure due to ischaemic heart disease. Australia/New Zealand Heart Failure Research Collaborative Group. Lancet. 1997 Feb 8;349(9049):375-80.
PubMed 9033462Bristow 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 8941106Dargie HJ. Effect of carvedilol on outcome after myocardial infarction in patients with left-ventricular dysfunction: the CAPRICORN randomised trial. Lancet. 2001 May 5;357(9266):1385-90. doi: 10.1016/s0140-6736(00)04560-8.
PubMed 11356434Doughty RN, Whalley GA, Walsh HA, Gamble GD, Lopez-Sendon J, Sharpe N; CAPRICORN Echo Substudy Investigators. Effects of carvedilol on left ventricular remodeling after acute myocardial infarction: the CAPRICORN Echo Substudy. Circulation. 2004 Jan 20;109(2):201-6. doi: 10.1161/01.CIR.0000108928.25690.94. Epub 2004 Jan 5.
PubMed 14707020Doughty RN, Whalley GA, Gamble G, MacMahon S, Sharpe N. Left ventricular remodeling with carvedilol in patients with congestive heart failure due to ischemic heart disease. Australia-New Zealand Heart Failure Research Collaborative Group. J Am Coll Cardiol. 1997 Apr;29(5):1060-6. doi: 10.1016/s0735-1097(97)00012-0.
PubMed 9120160Greenberg BH, Mehra M, Teerlink JR, Ordronneau P, McCollum D, Gilbert EM. COMPARE: comparison of the effects of carvedilol CR and carvedilol IR on left ventricular ejection fraction in patients with heart failure. Am J Cardiol. 2006 Oct 2;98(7A):53L-59L. doi: 10.1016/j.amjcard.2006.08.003. Epub 2006 Aug 28.
PubMed 17023233
Study at a glance
From the registry record, last updated by the sponsor on 28 Mar 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Multicenter,Randomized, Double Blind, Double Dummy, Parallel Group Study to Compare Effects of Coreg CR and Coreg IR on Left Ventricular End Systolic Volume Index in Subjects With Stable Chronic Heart Failure
- ClinicalTrials.gov ID
- NCT00323037
- Acronym / sponsor ID
- COMPARE / 104852
- Conditions
- Congestive Heart Failure
- Keywords
- heart failure
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 318 participants (actual)
- Lead sponsor
- CTI-1, LLCIndustry (pharma, biotech, devices)
- Collaborators
- CTI Clinical Trial and Consulting Services, GlaxoSmithKline
- Study start
- Mar 2006
- Primary completion
- Apr 2008 (actual)
- Study completion
- Jun 2008 (actual)
- First posted
- 9 May 2006 (estimated)
- Results
- Posted 13 Mar 2009
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine if Coreg CR is as effective as Coreg IR in improving heart function in subjects with stable chronic heart failure.
Detailed description
Results of clinical trials have shown beta-blockers improve symptoms and left ventricular function, reduce hospitalizations and death in heart failure, and prolong survival [MERIT-HF, CIBIS-II, Packer, 1996]. Clinical guidelines mandate use of beta-blockers in treatment of subjects with heart failure.
Carvedilol (Coreg IR) is a multiple action adrenergic receptor blocker with alpha 1, beta 1 and beta 2 receptor blockade properties. The beta-adrenergic properties are non-selective for beta 1 and beta 2 adrenergic receptors. Coreg IR, administered twice daily, is marketed in the United States for long term treatment of mild-moderate hypertension, mild to severe heart failure and subjects surviving an acute myocardial infarction with left ventricular dysfunction with or without symptomatic heart failure.
Coreg IR significantly reduces all cause mortality and the need for cardiovascular hospitalization [Packer, 1996a; Packer, 1996b; Colucci, 1996; Cohn, 1997; Olsen, 1995; Sharpe 1997]. The effect of Coreg is dose dependent [Bristow, 1996]. In subjects treated long term after an acute myocardial infarction (MI) complicated by left ventricular systolic dysfunction, Coreg IR reduced the frequency of all-cause and cardiovascular mortality, and recurrent non-fatal MIs. These beneficial effects are additional to those of evidence-based treatments for acute MI, including ACE inhibitors [Dargie, 2001].
Left Ventricular End Systolic Volume Index (LVESVI) is an important measure of ventricular function and remodeling in the evaluation of heart failure. In controlled clinical trials, Coreg IR, administered twice daily, has reduced LVESVI in subjects with ischemic heart failure. An echocardiography substudy of the Australia-New Zealand Trial [Doughty, 1997], evaluated left ventricular remodeling in 123 subjects with ischemic heart failure with an LVEF < 45 randomized to carvedilol or placebo. The LVESVI was reduced by 6.2 + 1.6 ml/m2 after 6 months and 8.7 + 2.6 ml/m2 after 12 months of carvedilol therapy compared to the placebo treated subjects. Metra et al [Metra, 2000] observed the favorable effects of carvedilol compared with metoprolol on LVEF, LV stroke volume, and pulmonary artery pressure despite similar effects on cardiovascular outcome. Both groups also showed significant decreases in LV systolic volume. Doughty et al [Doughty, 2004] observed the favorable effects of carvedilol on LV remodeling, with improved LV end-systolic volume and ejection fraction, after 6 months of treatment.
Carvedilol phosphate CR (Coreg CR) is an approved, modified release, once-daily formulation of carvedilol that is hoped to provide an advance in patient care through improved compliance with prescribed dose.
The clinical experience with various formulations of Coreg CR is limited to eight single dose studies in healthy subjects and one repeated dose study in subjects with hypertension. In total 230, adult subjects have received at least one dose of Coreg IR or one of several CR formulations across nine studies. The subjects ranged in age from 18 to 63 years; 62% were male and 69% were white. The various formulations of Coreg CR capsules were safe and well tolerated in single dose pharmacokinetic studies in doses ranging from 6.25 to 60 mg in healthy subjects. The most common adverse events were headache, dizziness and orthostatic hypotension and are all known adverse events following administration of Coreg IR [GSK Study 386, 388, 399, 400, 402, 907].
This study will be the first controlled clinical study investigating the efficacy of treatment with Coreg CR formulation [Coreg CR filled with 7.5 mg of carvedilol phosphate immediate release (IRp) microparticles, 22.5 mg of carvedilol phosphate Micropump IIa MR microparticles, and 30 mg of carvedilol phosphate Micropump IIc MR microparticles] compared to Coreg IR evaluating LVESVI in subjects with stable chronic heart failure.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Active comparator | Drug: carvedilol immediate release |
| 2 | Active comparator | Drug: carvedilol controlled release |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Male or non-pregnant female
- At least 18 years of age at the time informed consent is signed
- Stable, chronic, mild to severe heart failure as defined as subjects with symptoms of heart failure who do not require IV diuretics, inotropes, or vasodilators or those that require support with a left ventricular assist device
- Angiotensin converting enzyme inhibitors or angiotensin receptor blockers should be prescribed to all patients with HF due to LV systolic dysfunction with reduced LVEF unless contraindicated or intolerant to use
- At screening, subject has an LVEF < 40 as measured by 2-D echocardiography
Key exclusion criteria (25 listed)
- On beta-blocker therapy for greater than 42 days prior to consent
- Acute ischemic coronary event or coronary revascularization (PTCA, CABG, thrombolysis) within 1 week of screening echocardiography
- Scheduled or expected to be scheduled coronary revascularization within 4 weeks
- Unstable angina (angina characterized by sudden changes in the severity or length of angina attacks or a decrease in level of exertion that precipitates an episode
- Uncorrected primary obstructive or severe regurgitant valvular disease, nondilated (restrictive) or hypertrophic cardiomyopathies
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 |
|---|---|---|
| carvedilol controlled releaseAlso: Coreg CRCarvedilol controlled release (10, 20, 40 or 80 mg) and placebo taken in the morning. Two placebos taken in the evening. A total of 4 pills will be taken PO daily. | Drug | 2 |
| carvedilol immediate releaseAlso: Coreg, Coreg IRCarvedilol immediate release (3.125, 6.25, 12.5 or 25 mg) and placebo, taken PO, twice-daily. | Drug | 1 |
Primary outcome
Change From Baseline in Left Ventricular End Systolic Volume Index (LVESVI) Characterized by 2-D Echocardiography
Time frame: 24 weeks after entry into the maintenance period
Maintenance Visit 3 minus Baseline. Maintenance Visit 3 occurred 24 weeks after entry into the maintenance period. The maintenance period started after completion of a titration period of variable duration.
16 secondary outcomes
Change From Baseline in Left Ventricular Ejection Fraction (LVEF)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular End Diastolic Volume (LVEDV)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular End Systolic Volume (LVESV)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular End Diastolic Volume Index (LVEDVI)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Intraventricular Septal Thickness (IVST)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Posterior Wall Thickness (PWT)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Left Ventricular Mass (LVM)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in End Diastolic Dimension (EDD)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in End Systolic Dimension (ESD)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Deceleration Time
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in Early to Late Atrial Ratio (E:A Ratio)
Time frame: 24 weeks after entry into the maintenance period
Change From Baseline in BNP Levels
Time frame: 24 weeks after entry into the maintenance period
Incidence of Hospitalizations
Time frame: Up to 32 weeks (titration and maintenance phases)
Drug Dose Tolerability
Time frame: Up to 32 weeks (titration and maintenance phases)
Treatment Compliance
Time frame: Up to 32 weeks (titration and maintenance phases)
Safety and Tolerability of Coreg CR
Time frame: 24 weeks after entry into the maintenance phase (after unblinding)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Mar 2023.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 10376614Effect of metoprolol CR/XL in chronic heart failure: Metoprolol CR/XL Randomised Intervention Trial in Congestive Heart Failure (MERIT-HF). Lancet. 1999 Jun 12;353(9169):2001-7.
- Background: PubMed 10023943The Cardiac Insufficiency Bisoprolol Study II (CIBIS-II): a randomised trial. Lancet. 1999 Jan 2;353(9146):9-13.
- Background: PubMed 8941104Packer M, Colucci WS, Sackner-Bernstein JD, Liang CS, Goldscher DA, Freeman I, Kukin ML, Kinhal V, Udelson JE, Klapholz M, Gottlieb SS, Pearle D, Cody RJ, Gregory JJ, Kantrowitz NE, LeJemtel TH, Young ST, Lukas MA, Shusterman NH. Double-blind, placebo-controlled study of the effects of carvedilol in patients with moderate to severe heart failure. The PRECISE Trial. Prospective Randomized Evaluation of Carvedilol on Symptoms and Exercise. Circulation. 1996 Dec 1;94(11):2793-9. doi: 10.1161/01.cir.94.11.2793.
- Background: PubMed 8614419Packer 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.
- Background: PubMed 8941105Colucci WS, Packer M, Bristow MR, Gilbert EM, Cohn JN, Fowler MB, Krueger SK, Hershberger R, Uretsky BF, Bowers JA, Sackner-Bernstein JD, Young ST, Holcslaw TL, Lukas MA. Carvedilol inhibits clinical progression in patients with mild symptoms of heart failure. US Carvedilol Heart Failure Study Group. Circulation. 1996 Dec 1;94(11):2800-6. doi: 10.1161/01.cir.94.11.2800.
- Background: PubMed 9330125Cohn JN, Fowler MB, Bristow MR, Colucci WS, Gilbert EM, Kinhal V, Krueger SK, Lejemtel T, Narahara KA, Packer M, Young ST, Holcslaw TL, Lukas MA. Safety and efficacy of carvedilol in severe heart failure. The U.S. Carvedilol Heart Failure Study Group. J Card Fail. 1997 Sep;3(3):173-9. doi: 10.1016/s1071-9164(97)90013-0.
- Background: PubMed 7722114Olsen 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.
- Background: PubMed 9033462Randomised, placebo-controlled trial of carvedilol in patients with congestive heart failure due to ischaemic heart disease. Australia/New Zealand Heart Failure Research Collaborative Group. Lancet. 1997 Feb 8;349(9049):375-80.
- Background: PubMed 8941106Bristow 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.
- Background: PubMed 11356434Dargie HJ. Effect of carvedilol on outcome after myocardial infarction in patients with left-ventricular dysfunction: the CAPRICORN randomised trial. Lancet. 2001 May 5;357(9266):1385-90. doi: 10.1016/s0140-6736(00)04560-8.
- Background: PubMed 14707020Doughty RN, Whalley GA, Walsh HA, Gamble GD, Lopez-Sendon J, Sharpe N; CAPRICORN Echo Substudy Investigators. Effects of carvedilol on left ventricular remodeling after acute myocardial infarction: the CAPRICORN Echo Substudy. Circulation. 2004 Jan 20;109(2):201-6. doi: 10.1161/01.CIR.0000108928.25690.94. Epub 2004 Jan 5.
- Background: PubMed 9120160Doughty RN, Whalley GA, Gamble G, MacMahon S, Sharpe N. Left ventricular remodeling with carvedilol in patients with congestive heart failure due to ischemic heart disease. Australia-New Zealand Heart Failure Research Collaborative Group. J Am Coll Cardiol. 1997 Apr;29(5):1060-6. doi: 10.1016/s0735-1097(97)00012-0.
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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.
Barry Greenberg, MD study chair
75 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing carvedilol immediate release in people with Congestive Heart Failure, run by CTI-1, LLC at 75 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 6 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 28 Mar 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 75 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. 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?
Yes. Results are posted in the registry (first posted 13 Mar 2009). 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?
Change From Baseline in Left Ventricular End Systolic Volume Index (LVESVI) Characterized by 2-D Echocardiography (time frame: 24 weeks after entry into the maintenance period). 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 NCT00323037, which also lists 13 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 28 Mar 2023.