| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Chronic heart failure and left ventricular dysfunction |  | 
| E.1.1.1 | Medical condition in easily understood language | 
| Chronic heart failure and left ventricular dysfunction |  | 
| E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 14.1 |  
| E.1.2 | Level | PT |  
| E.1.2 | Classification code | 10007558 |  
| E.1.2 | Term | Cardiac failure chronic |  
| E.1.2 | System Organ Class | 10007541 - Cardiac disorders |  | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 14.1 |  
| E.1.2 | Level | PT |  
| E.1.2 | Classification code | 10049694 |  
| E.1.2 | Term | Left ventricular dysfunction |  
| E.1.2 | System Organ Class | 10007541 - Cardiac disorders |  | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| - Evaluation of the effects on cardiac function and NT-proBNP. |  | 
| E.2.2 | Secondary objectives of the trial | 
| - Evaluation of the safety profile. |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| - Male or female patients  superior or equal to 18 years and less or equal to 80 years. - Symptomatic chronic heart failure for at least 6 months before selection.
 - NYHA functional class II or III.
 - Ischemic disease or idiopathic dilated cardiomyopathy as main cause for CHF.
 - Left ventricular systolic dysfunction as evidenced by a LVEF less or equal to 40 % as measured within 6 months before selection.
 - ACE inhibitor and/or an ARB treatment for at least 3 months before selection.
 - NT-proBNP plasma concentration superior or equal to 400 pg/mL or BNP plasma concentration superior or equal to 100 pg/mL.
 
 |  | 
| E.4 | Principal exclusion criteria | 
| - Treatment with a beta-blocker within 2 months before selection. - Unstable condition within the previous 4 weeks before selection.
 - Recent (less than 3 months before selection) myocardial infarction, unstable angina or coronary revascularisation.
 - History of stroke or cerebral transient ischemic attack within the previous 3 months before selection.
 - Severe aortic or mitral stenosis, severe aortic regurgitation, or severe mitral regurgitation.
 - Congenital heart disease.
 - Hypertrophic obstructive cardiomyopathy.
 - Pericardial disease.
 - Atrio-ventricular block of second or third degree.
 - Corrected QT interval duration (Bazett’s formula) > 480 ms.
 - Family history of long QT syndrome or congenital long QT syndrome.
 - Serum creatinine > 200 micromoles/L (> 2.26 mg/dL).
 - ALAT or ASAT > 3 times the upper limit of normal values.
 - Serum total calcium < 2.1 mmol/L or > 2.6 mmol/L.
 - Blood hemoglobin lower than 110 g/L (in males) or lower than 100 g/L (in females).
 
 
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| - Echocardiographic parameters. - NT-proBNP plasma concentrations.
 |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
| - Echocardiographic parameters at the selection, W000, W004, W008 and W012 visits, - NT-proBNP plasma concentrations  before W000 visit, and at W001, W004, W008 and W012 visits.
 |  | 
| E.5.2 | Secondary end point(s) | 
| - Clinical safety measurements  (12-lead resting ECG, physical examination, adverse events, blood clinical laboratory parameters) |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| -12-lead resting ECG, physical examination and adverse events at selection, W000, W001, W004, W008, and W012 visits. -blood clinical parameters before W000 visit and at W001, W004, W008 and W012 visits.
 |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | No | 
| E.6.3 | Therapy | No | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | No | 
| E.6.7 | Pharmacodynamic | No | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | No | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | No | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | Yes | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | Yes | 
| E.8.1.1 | Randomised | Yes | 
| E.8.1.2 | Open | No | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | Yes | 
| E.8.1.5 | Parallel group | Yes | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | No | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | No | 
| E.8.2.2 | Placebo | Yes | 
| E.8.2.3 | Other | No | 
| E.8.2.4 | Number of treatment arms in the trial | 5 | 
| E.8.3 | The trial involves single site in the Member State concerned | No | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 6 | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.5.1 | Number of sites anticipated in the EEA | 31 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | Yes | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | No | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
| Estonia |  
| Germany |  
| Italy |  
| Latvia |  
| Poland |  
| Portugal |  
| Romania |  
| Russian Federation |  
| Ukraine |  
| United Kingdom |  | 
| E.8.7 | Trial has a data monitoring committee | No | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial | 
| Last Visit of Last Patient as stated in the protocol. |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 2 | 
| E.8.9.1 | In the Member State concerned months | 7 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 2 | 
| E.8.9.2 | In all countries concerned by the trial months | 7 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |