We updated the design of this site on September 25th. Learn more.
Show more
ClinicalTrials.gov
ClinicalTrials.gov Menu

Markers and Response to Cardiac Resynchronization Therapy (MARC)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01519908
First Posted: January 27, 2012
Last Update Posted: December 2, 2015
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Collaborators:
Center for Translational Molecular Medicine
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
UMC Utrecht
Maastricht University Medical Center
Free University Medical Center
Information provided by (Responsible Party):
Alexander H. Maass, University Medical Center Groningen
  Purpose

The purpose of this study is to investigate: the relation of a set of (bio)markers and response to Cardiac Resynchronization Therapy (CRT); the interrelationship as well as the potential predictive power of these (bio)markers on improvement and/or deterioration of cardiac function, cardiac geometry (reverse re-modeling during CRT) will be evaluated.

(Bio)markers include but are not limited to: collagen, genomic markers, molecular markers, electrocardiographic markers, echocardiographic markers, arrhythmogenic markers and markers for renal function: blood urea nitrogen (BUN), serum creatinine, glomerular filtration rate (GFR).


Condition Intervention
Heart Failure Device: CRT-D (Medtronic)

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Markers and Response to Cardiac Resynchronization Therapy

Further study details as provided by Alexander H. Maass, University Medical Center Groningen:

Primary Outcome Measures:
  • Correlation of biomarkers with reverse remodeling in cardiac resynchronization therapy [ Time Frame: 6 months ]

    To investigate the relationship between a set of (bio)markers and response to cardiac resynchronization therapy (as measured by echocardiography) at 6 months.

    For each biomarker, the relation with LVESVi change between baseline and 6 months post implant will be analyzed.



Secondary Outcome Measures:
  • Correlation of biomarker with reverse remodeling in cardiac resynchronization therapy [ Time Frame: 12 months ]

    Secondary objective 1

    • To investigate the relationship between a set of (bio)markers and response to cardiac resynchronization therapy (as measured by echocardiography) at 12 months For each biomarker, the relation with LVESVi change between baseline and 12 months will be analyzed. This is identical to the primary objective, except that a 12 months horizon is used instead of 6 months.


  • Correlation of biomarkers and atrial fibrillation in cardiac resynchronization therapy [ Time Frame: 12 months ]

    Secondary objective 2

    • To investigate the relationship between (bio)markers and atrial fibrillation during follow-up The purpose of this objective is to investigate if biomarkers can identify patients that have increased risk to get AF episodes, and to investigate if biomarkers can predict the amount of AF.


  • Correlation of biomarkers and ventricular arrhythmias in cardiac resynchronization therapy [ Time Frame: 12 months ]

    Secondary objective 3

    • To investigate the relationship between (bio)markers and ventricular tachycardia/ fibrillation and/or appropriate shocks during follow-up The purpose of this objective is to investigate if biomarkers can identify patients that have increased risk to get VF episodes.


  • Correlation of biomarkers with echocardiographic changes in cardiac resynchronization therapy [ Time Frame: 12 months ]

    Secondary objective 4

    • To investigate the relationship between (bio)markers and reverse remodeling The primary objective will look at change of LVESVi. The purpose of this secondary objective is to confirm results of the primary objective by looking at other cardiac volume and dimension measurements, including LVESV, LVEDV and LVEDD.


  • Correlation of anatomy and function with response to cardiac resynchronization therapy [ Time Frame: 12 months ]

    Secondary objective 5

    • To relate baseline cardiac anatomy, function and mechanical dyssynchrony by cardiac MRI and PET imaging in a subset of patients to CRT-response and to atrial and ventricular arrhythmia's.



Biospecimen Retention:   Samples With DNA
Whole blood, serum, plasma

Enrollment: 240
Study Start Date: February 2012
Study Completion Date: December 2014
Primary Completion Date: December 2014 (Final data collection date for primary outcome measure)
Intervention Details:
    Device: CRT-D (Medtronic)
    Biventricular implantable cardioverter defibrillator, post marketing release
    Other Name: Medtronic CRT-D device
  Show Detailed Description

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
The study group to be recruited will consist of symptomatic heart failure patients (NYHA II-III), male and female, with a reduced left ventricular ejection fraction and ventricular dyssynchrony as measured prior to implantation of a cardiac resynchronization therapy device (CRT-D). Each study subject receives a CRT-Daccording to the current ESC/AHA guidelines.
Criteria

Inclusion Criteria:

  • Subject is indicated for CRT-D device according to current applicable ESC/AHA guidelines
  • Subject has NYHA class II or III
  • Subject has stable sinus rhythm (no atrial arrhythmias lasting > 30 seconds during the last 2 weeks prior to inclusion) No documented AF-episodes allowed during the last 2 weeks prior to inclusion.
  • Intrinsic QRS-width ≥ 130 ms with LBBB or ≥ 150 ms without LBBB as measured within 30 days prior to device implant for subjects with NYHA class II
  • Intrinsic QRS-width ≥ 120 ms with LBBB or ≥ 150 ms without LBBB as measured within 30 days prior to device implant for subjects with NYHA class III
  • Subject receives optimal heart failure oral medical therapy (ACE inhibitor and/or ARB and Beta Blockers), and is on a stable medication scheme for at least 1 month prior to enrollment
  • Subject is willing to sign informed consent form
  • Subject is 18 years or older

Exclusion Criteria:

  • Subject is upgraded from a bradycardia pacemaker to CRT-D
  • Subject receives CRT-D replacement or is upgraded from CRT-P to CRT-D
  • Subject has permanent atrial fibrillation/ flutter or tachycardia.
  • Subject experienced recent myocardial infarction (MI), within 40 days prior to enrollment
  • Subject underwent coronary artery bypass graft (CABG) or valve surgery, within 90 days prior to enrollment
  • Subject is post heart transplantation, or is actively listed on the transplantation list, or has reasonable probability (per investigator's discretion) of undergoing transplantation in the next year
  • Subject is implanted with a left ventricular assist device (LVAD), or has reasonable probability (per investigator's discretion) of receiving a LVAD in the next year
  • Subject is on chronic renal dialysis
  • Subject has severe renal disease (defined as Glomerular Filtration Rate (GFR) < 30 mL/min/1.73m2)
  • Subject is on continuous or uninterrupted infusion (inotropic) therapy for heart failure (≥ 2 stable infusions per week)
  • Subject has RBBB
  • Subject has permanent 2nd or 3rd degree AV-block
  • Subject has severe aortic stenosis (with a valve area of < 1.0 cm2 or significant valve disease expected to be operated within study period)
  • Subject has complex and uncorrected congenital heart disease
  • Subject has a mechanical right heart valve
  • Subject has a life expectancy of less than one year in the opinion of the investigator
  • Pregnant or breastfeeding women, or women of child bearing potential and who are not on a reliable form of birth control
  • Subject is enrolled in one or more concurrent studies that would confound the results of this study
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01519908


Locations
Netherlands
Academic Medical Center
Amsterdam, Netherlands
Free University
Amsterdam, Netherlands
Medisch Spectrum Twente
Enschede, Netherlands
University Medical Center Groningen
Groningen, Netherlands
Maastricht University Medical Center
Maastricht, Netherlands
University Medical Center Utrecht
Utrecht, Netherlands
Sponsors and Collaborators
University Medical Center Groningen
Center for Translational Molecular Medicine
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
UMC Utrecht
Maastricht University Medical Center
Free University Medical Center
Investigators
Study Director: Marc Vos, MD, PhD UMC Utrecht
  More Information

Additional Information:
Responsible Party: Alexander H. Maass, Principal Investigator, University Medical Center Groningen
ClinicalTrials.gov Identifier: NCT01519908     History of Changes
Other Study ID Numbers: CTMM-COHFAR-MARC
First Submitted: January 24, 2012
First Posted: January 27, 2012
Last Update Posted: December 2, 2015
Last Verified: November 2015

Keywords provided by Alexander H. Maass, University Medical Center Groningen:
cardiac resynchronization therapy
biomarkers
response

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases