SYNCHRO. Evaluation of the Forecasts Parameters of Real Time-three-dimensional Doppler Echocardiography in Selecting Patients With Chronic Heart Failure for Cardiac Resynchronisation Therapy

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. Identifier: NCT00488410
Recruitment Status : Completed
First Posted : June 20, 2007
Last Update Posted : September 8, 2010
Information provided by:
University Hospital, Clermont-Ferrand

Brief Summary:
Patients showing a normal value of SDI (< or + 8%) will randomly be assigned to CRT in "ON" or "OFF"mode at one month after implantation. In any case of emergency, an automated rescue mode is included in the device for the patients in "OFF" mode.

Condition or disease Intervention/treatment Phase
Chronic Heart Failure Device: Doppler echocardiography Not Applicable

Detailed Description:

Patients with a pathological SDI (> 8%) will as usually be treated by CRT and will serve as control group. The study duration for each patient included in the trial is 6 months. Patients showing a decreased NYHA score by at least one class and an absence of major cardiovascular event during the period will be considered as "good responders". The otherswill be considered as "no responders".

Based on this composite clinical score, the percentage of good responders in each group at 6 months is the primary endpoint of the study.

Main secondary endpoints :

  • Evaluation of the left ventricular function
  • Exercice capacity
  • Serious adverse events'frequency
  • Quality of life (SF36)
  • Diagnostic and prognostic value of the "Brain Natriuretic Peptide"(NT pro BNP)evolution.

Study Type : Interventional  (Clinical Trial)
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Single
Official Title: Evaluation of the Forecasts Parameters of Real Time Three-dimensional Doppler Echocardiography in Selecting Patients With Chronic Heart Failure for Cardiac Resynchronisation Therapy
Study Start Date : November 2006
Actual Primary Completion Date : October 2009
Actual Study Completion Date : December 2009

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Heart Failure

Primary Outcome Measures :
  1. Three parallel arms, randomized, controlled, single blinded, monocentre, clinical trial.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Both gender
  • Age>18 years
  • Patients in functional class NYHA III or IV
  • Patient with ejection fraction <or=150msec or with QRS between 120 and 149 msec but with echocardiographic evidences for cardiac dyssynchrony, such as those retained in the CARE-HF trial, e.g.two from the three following criterions :-Aortic pre-ejection delay>140msec
  • Interventricular mechanical delay >40msec
  • Delayed activation of the left ventricular postero-lateral wall
  • Patient under optimal treatment for chronic heart failure for at least one month before inclusion
  • Written informed consentement

Exclusion Criteria:

  • Patient with atrial fibrillation
  • Absence of echogenicity
  • Patient with an indication for pacemaker implantation
  • Patient suffering from arterial pressure disorders, with systolic pressure greater than 170 or lower than 80 mmHg
  • Major cardiovascular event within 6 weeks before inclusion
  • Patient in the exclusion period of any other clinical trial
  • Patient without social insurance policy
  • Drug or alcohol addiction
  • Any psychological disorder
  • Pregnant women
  • Patient with a transplanted organ
  • HIV positive serology at inclusion

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 identifier (NCT number): NCT00488410

Clermont-Ferrand University Hospital
Clermont-Ferrand, Auvergne, France, 63000
Sponsors and Collaborators
University Hospital, Clermont-Ferrand
Principal Investigator: Bernard Citron, Pr University Hospital, Clermont-Ferrand

Responsible Party: CHU Clermont-Ferrand, Cardiac surgery center Identifier: NCT00488410     History of Changes
Other Study ID Numbers: CHU63-0016
First Posted: June 20, 2007    Key Record Dates
Last Update Posted: September 8, 2010
Last Verified: September 2010

Keywords provided by University Hospital, Clermont-Ferrand:
Chronic heart failure
real time three-dimensional echocardiography
cardiac resynchronization therapy
ventricular asynchrony
systolic dysynchrony index

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases