The effect of JNJ-39588146 on cardiac index (CI), a hemodynamic parameter that relates heart performance to the size of the individual measured in liters per minute per square metre (l/min/m2) was evaluated in patients with heart failure (HF). The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in CI at each time point as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The effect of JNJ-39588146 on pulmonary capillary wedge pressure (PCWP) was evaluated by administering multiple ascending doses of JNJ-39588146 or placebo over a 3-hour intravenous (IV) infusion period to patients with heart failure. The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from baseline in PCWP at each time point as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in heart rate (HR) at each time point as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in systolic blood pressure (SBP) at each time point as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of LS mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in Least Square (LS) means (and associated confidence intervals) for change from Baseline in diastolic blood pressure(DBP) at each time point as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in left ventricular end systolic volume (LVESV) at the end of the 30 ng/kg/min infusion as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in Left Ventricular End Diastolic Volume (LVEDV) at the end of the 30 ng/kg/min infusion as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in Left Ventricular Ejection Fraction (LVEF) at the end of the 30 ng/kg/min infusion as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in Fractional Shortening (FS) at the end of the 30 ng/kg/min infusion as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in Stroke Volume (SV) at the end of the 30 ng/kg/min infusion as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in Pulmonary Arterial Systolic Pressure (PASP) at the end of 5, 15 and 30 ng/kg/min Infusions as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Square (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in Pulmonary Arterial Diastolic Pressure (PADP) at the end of 5, 15 and 30 ng/kg/min Infusions as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.

The primary analysis of this study focused on the differences between the treatment groups in terms of Least Squares (LS) mean change from Baseline at each time point; thus, the results provided below consist of the JNJ-39588146 minus placebo differences in LS means (and associated confidence intervals) for change from Baseline in Calculated Systemic Vascular Resistance (SVR) at the end of 5, 15 and 30 ng/kg/min Infusions as well as treatment group LS means and Standard Errors.

The modified intent-to-treat (MITT) population included all randomized patients who received at least 1 dose of study drug, had baseline measurement and at least 1 post-baseline measurement value of at least 1 of the primary endpoints. The efficacy analysis was to be performed using the MITT analysis set.