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A Study to Test the Effects of Riociguat in Patients With Pulmonary Hypertension Associated With Left Ventricular Systolic Dysfunction

Randomized, Double Blind, Placebo Controlled, Parallel Group, Multi-center Study to Evaluate the Hemodynamic Effects of Riociguat (BAY 63-2521) as Well as Safety and Kinetics in Patients With Pulmonary Hypertension Associated With Left Ventricular Systolic Dysfunction

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01065454
Acronym
LEPHT
Enrollment
202
Registered
2010-02-09
Start date
2010-04-14
Completion date
2025-07-23
Last updated
2026-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypertension, Pulmonary, Ventricular Dysfunction, Left

Keywords

Pulmonary Hypertension, Left ventricular dysfunction

Brief summary

The aim of this study is to assess whether increasing oral doses of Riociguat are safe and improve the well-being, symptoms and outcome in patients with pulmonary hypertension associated with left ventricular systolic dysfunction

Detailed description

Pharmacokinetics parameters were regarded as exploratory parameters. Adverse event data will be covered in Adverse events section.

Interventions

DRUGRiociguat (Adempas, BAY63-2521)

up to 2 mg three times a day (increasing from 0.5 to 1 to 2 mg)

DRUGPlacebo

Placebo three times a day

Sponsors

Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Male and female patients with symptomatic pulmonary hypertension due to left ventricular systolic dysfunction despite optimized heart failure therapy

Exclusion criteria

* Types of pulmonary hypertension other than group 2.1 of Dana Point Classification

Design outcomes

Primary

MeasureTime frameDescription
Pulmonary Artery Mean Pressure (PAPmean) at Rest - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Mean pulmonary arterial pressure (PAPmean) is a directly measured hemodynamic parameter. PAPmean is recorded during a right heart catheterization.

Secondary

MeasureTime frameDescription
Venous Oxygen Saturation (SvO2) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The mixed venous oxygen saturation rate (SvO2) is a directly measured hemodynamic parameter. SvO2 is recorded during a right heart catheterization.
Pulmonary Vascular Resistance (PVR) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The pulmonary vascular resistance (PVR) is a calculated hemodynamic parameter. PVR is derived from the directly measured parameters mean pulmonary arterial pressure (PAPmean) and pulmonary capillary wedge pressure (PCWP), divided by the cardiac output (CO). PVR and PAPmean are acquired during a right heart catheterization. CO is a calculated hemodynamic parameter, too. Formula: PVR = 80\*(PAPmean - PCWP)/CO
Pulmonary Vascular Resistance Index (PVRi) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The pulmonary vascular resistance index (PVRi) is a calculated hemodynamic parameter. PVRi is derived from the pulmonary vascular resistance (PVR) normalized by the body surface area (BSA). Formula: PVRi = 80\*(PAPmean - PCWP)\*BSA/CO
Asymmetric Dimethylarginine (ADMA) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of nitric oxides. Recent clinical studies have indicated that ADMA may have diagnostic relevance as a novel cardiovascular risk marker.
Osteopontin - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Osteopontin is a cytokine-like pro-fibrotic mediator, which is expressed in cardiovascular tissues. Its expression is induced by increased pressure and volume load in the myocardium, kidney and lung. Therefore, osteopontin may be used as a prognostic marker in patients with cardiovascular diseases.
Systemic Vascular Resistance (SVR) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The systemic vascular resistance (SVR) is a calculated hemodynamic parameter. SVR is derived from the directly measured parameter mean right atrial pressure (RAPmean) and the calculated parameter mean systemic arterial pressure (SAPmean) divided by the cardiac output (CO). RAPmean is acquired during a right heart catheterization. CO is a calculated hemodynamic parameter, too. Formula: SVR = 80\*(SAPmean - RAPmean)/CO
Systemic Vascular Resistance Index (SVRi) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The systemic vascular resistance index (SVRi) is a calculated hemodynamic parameter. SVRi is derived from the systemic vascular resistance (SVR) normalized by the body surface area (BSA). Formula: SVRi = 80\*(SAPmean - RAPmean)\*BSA/CO
Transpulmonary Pressure Gradient (TPG) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The transpulmonary pressure gradient (TPG) is a calculated hemodynamic parameter. TPG is calculated from the directly measured parameters mean pulmonary arterial pressure (PAPmean) and pulmonary capillary wedge pressure (PCWP). These 2 parameters are acquired during a right heart catheterization. Formula: TPG = PAPmean - PCWP
Pulmonary Capillary Wedge Pressure (PCWP) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Pulmonary capillary wedge pressure (PCWP) is a directly measured hemodynamic parameter acquired during a right heart catheterization.
Tricuspid Annular Plane Systolic Excursion (TAPSE) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The tricuspid annular plane systolic excursion (TAPSE) is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.
Systolic Pulmonary Arterial Pressure (PAPsyst) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Systolic pulmonary arterial pressure (PAPsyst) is a directly measured hemodynamic parameter acquired during a right heart catheterization.
Left Ventricular Ejection Fraction (LVEF) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The left ventricular ejection fraction work index (LVEF) is a calculated echocardiography parameter. LVEF is derived from the directly measured parameters left ventricular end-diastolic volume (LVEDV) and left ventricular end-systolic volume (LVESV). These 2 parameters are acquired during a non-invasive echocardiography examination. Formula: LEVF = 100\*(LVEDV - LVESV)/LVEDV
Left Ventricular End-systolic Volume (LVESV) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Left ventricular end-systolic volume (LVESV) is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.
Left Ventricular End-diastolic Volume (LVEDV) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Left ventricular end-diastolic volume (LVEDV) is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.
E-wave Deceleration Time - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)E-wave deceleration time is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.
Ratio of Mitral Peak Velocity of Early Filling to Mitral Peak Velocity of Late Filling (E/A) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)E/A ratio is a measured echocardiography parameter and describes the ratio of mitral peak velocity of early filling to mitral peak velocity of late filling. It is acquired during a non-invasive echocardiography examination.
6-minute Walking Distance (6MWD) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)6-minute walking distance (6MWD) is a measure for the objective evaluation of a patient's functional exercise capacity.
WHO (World Health Organization) Functional Class - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The WHO functional assessment of pulmonary arterial hypertension ranged from functional class I (Patients with PH but without resulting limitation of physical activity) to class IV (Patients with PH with inability to carry out any physical activity without symptoms. These patients manifest signs of right-heart failure.). Changes to a lower WHO functional class resemble improvement, changes to a higher functional class resemble deterioration of PAH.
Percentage of Participants With Clinical WorseningAt visit 6 (16 weeks)The combined endpoint "time to clinical worsening", made up of the following components, defined by the first occurrence: all cause mortality, including cardiovascular mortality; first hospitalization for a cardiovascular event, including heart failure, acute myocardial infarction, stroke or ventricular arrhythmia; upgrade of the HTx (heart transplantation) status to next higher level; need for IV diuretics; persistent worsening of WHO functional class due to deterioration of PH or cardiac function.
Borg CR 10 Scale - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The Borg CR10 Scale is a patient reported outcome measure used in clinical diagnosis of e.g. breathlessness and dyspnea. It documents the patient's exertion during a physical test. Low values indicate low levels of exertion, high values indicate more intense exertion reported by the patient. The score ranges from 0 ("Nothing at all") to 10 ("Extremely strong - Maximal").
EQ-5D Utility Score - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)EQ-5D utility score is a Quality-of-Life patient reported outcome measure. An increase in the utility score represents an improvement in quality of life. The score ranges from 0 (worst imaginable health state) to 100 (best imaginable health state).
Minnesota Living With Heart Failure Questionnaire (MLHF) Score - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)The self-reported Minnesota Living with Heart Failure questionnaire (MLHF) is designed to measure the effects of PH and PH-specific treatments on an individual's quality of life. The MLHF total score can range from 0 (best) to 105 (worst).
Cystatin C - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Cystatin C is a biomarker for predicting new onset or deteriorating cardiovascular disease.
N-terminal Pro-brain Natriuretic Peptide (NT-pro BNP) - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)N-terminal pro-brain natriuretic peptide (NT-pro BNP) levels in the blood are used for screening, diagnosis of acute congestive heart failure (CHF) and may be useful to establish prognosis in heart failure.
Troponin T - Change From Baseline to Week 16Baseline and visit 6 (16 weeks)Troponin T is a cardiac-specific protein which is released from damaged or injured heart muscle cells.

Countries

Australia, Austria, Belgium, Canada, China, Czechia, Denmark, France, Germany, Italy, Japan, Netherlands, Poland, Singapore, Spain, Switzerland, United Kingdom, United States

Contacts

STUDY_DIRECTORBayer Study Director

Bayer

Participant flow

Recruitment details

Only subjects with symptomatic pulmonary hypertension associated with left ventricular systolic dysfunction (PH-sLVD) could participate in this study. Subjects must have been pre-treated with optimized CHF therapy.

Pre-assignment details

301 subjects were screened in 84 study centers in 18 countries worldwide. 99 of the 301 screened subjects were not randomized (adverse event \[1\], protocol violation \[1\], screen failure \[87\], withdrawal by subject \[10\]). Of the 202 subjects randomized, one subject did not receive any study medication.

Participants by arm

ArmCount
Riociguat (Adempas, BAY63-2521) up to 2 mg
Participants received riociguat up to 2 mg three times per day (tid) (increasing from 0.5 to 1 to 2 mg).
67
Riociguat (Adempas, BAY63-2521) up to 1 mg
Participants received riociguat up to 1 mg tid (increasing from 0.5 to 1 mg).
33
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mg
Participants received riociguat 0.5 mg tid (fixed dose).
32
Placebo
Participants received placebo tid.
69
Total201

Baseline characteristics

CharacteristicRiociguat (Adempas, BAY63-2521) up to 2 mgTotalPlaceboRiociguat (Adempas, BAY63-2521) Fixed 0.5 mgRiociguat (Adempas, BAY63-2521) up to 1 mg
6-minute walking distance380.9 Meters
STANDARD_DEVIATION 125.8
390.5 Meters
STANDARD_DEVIATION 116.94
382.1 Meters
STANDARD_DEVIATION 123.51
416.6 Meters
STANDARD_DEVIATION 95.77
401.9 Meters
STANDARD_DEVIATION 101.75
Age, Continuous59.3 Years
STANDARD_DEVIATION 10.8
58.1 Years
STANDARD_DEVIATION 11.2
58.9 Years
STANDARD_DEVIATION 11.2
57.2 Years
STANDARD_DEVIATION 9.9
55.1 Years
STANDARD_DEVIATION 13.2
Baseline drug and device therapy
Aldosterone antagonists
51 Participants153 Participants53 Participants23 Participants26 Participants
Baseline drug and device therapy
Amiodarone
9 Participants24 Participants8 Participants4 Participants3 Participants
Baseline drug and device therapy
Angiotensin-converting enzyme inhibitors
50 Participants142 Participants46 Participants21 Participants25 Participants
Baseline drug and device therapy
Angiotensin II receptor blockers
20 Participants57 Participants19 Participants10 Participants8 Participants
Baseline drug and device therapy
Beta-blockers
31 Participants100 Participants32 Participants21 Participants16 Participants
Baseline drug and device therapy
Beta-blockers with alpha-blocking activity
30 Participants86 Participants30 Participants11 Participants15 Participants
Baseline drug and device therapy
Cardiac devices
38 Participants120 Participants44 Participants21 Participants17 Participants
Baseline drug and device therapy
Cardiac glycosides
28 Participants74 Participants28 Participants6 Participants12 Participants
Baseline drug and device therapy
Loop diuretics
62 Participants190 Participants68 Participants29 Participants31 Participants
Baseline drug and device therapy
Oral anticoagulants
38 Participants102 Participants33 Participants15 Participants16 Participants
Baseline drug and device therapy
Thiazide diuretics
12 Participants32 Participants10 Participants7 Participants3 Participants
Body mass index28.87 kg/m^2
STANDARD_DEVIATION 5.27
28.73 kg/m^2
STANDARD_DEVIATION 5.44
28.65 kg/m^2
STANDARD_DEVIATION 5.89
29.20 kg/m^2
STANDARD_DEVIATION 5.64
28.16 kg/m^2
STANDARD_DEVIATION 4.72
Etiology
Data missing
0 Participants3 Participants1 Participants1 Participants1 Participants
Etiology
Ischemic cardiomyopathy
30 Participants90 Participants34 Participants14 Participants12 Participants
Etiology
Non-ischemic cardiomyopathy
37 Participants108 Participants34 Participants17 Participants20 Participants
Glomerular filtration rate (GFR)65.1 mL/min/1.73m^2
STANDARD_DEVIATION 19.1
68.7 mL/min/1.73m^2
STANDARD_DEVIATION 19.91
68.7 mL/min/1.73m^2
STANDARD_DEVIATION 19.9
72.0 mL/min/1.73m^2
STANDARD_DEVIATION 17.9
72.6 mL/min/1.73m^2
STANDARD_DEVIATION 22.7
Left ventricular ejection fraction (LVEF)28.4 Percentage
STANDARD_DEVIATION 5.72
27.8 Percentage
STANDARD_DEVIATION 5.24
27.1 Percentage
STANDARD_DEVIATION 5.02
27.0 Percentage
STANDARD_DEVIATION 5.21
28.8 Percentage
STANDARD_DEVIATION 4.54
Number of participants with atrial fibrillation9 Participants24 Participants9 Participants3 Participants3 Participants
Number of participants with atrial flutter0 Participants2 Participants1 Participants1 Participants0 Participants
Number of participants with diabetes mellitus (including subtypes)30 Participants87 Participants34 Participants13 Participants10 Participants
Number of participants with pacemaker rhythm17 Participants50 Participants17 Participants7 Participants9 Participants
Sex: Female, Male
Female
12 Participants29 Participants8 Participants6 Participants3 Participants
Sex: Female, Male
Male
55 Participants172 Participants61 Participants26 Participants30 Participants
WHO (World Health Organization) functional class
II
35 Participants120 Participants42 Participants23 Participants20 Participants
WHO (World Health Organization) functional class
III
31 Participants76 Participants23 Participants9 Participants13 Participants
WHO (World Health Organization) functional class
IV
1 Participants5 Participants4 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
1 / 671 / 331 / 320 / 6929 / 142
other
Total, other adverse events
61 / 6729 / 3324 / 3252 / 69136 / 142
serious
Total, serious adverse events
23 / 677 / 337 / 3218 / 69116 / 142

Outcome results

Primary

Pulmonary Artery Mean Pressure (PAPmean) at Rest - Change From Baseline to Week 16

Mean pulmonary arterial pressure (PAPmean) is a directly measured hemodynamic parameter. PAPmean is recorded during a right heart catheterization.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF \[safety analysis set\]/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgPulmonary Artery Mean Pressure (PAPmean) at Rest - Change From Baseline to Week 16-6.1 mmHgStandard Deviation 9.68
Riociguat (Adempas, BAY63-2521) up to 1 mgPulmonary Artery Mean Pressure (PAPmean) at Rest - Change From Baseline to Week 16-0.8 mmHgStandard Deviation 8.41
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgPulmonary Artery Mean Pressure (PAPmean) at Rest - Change From Baseline to Week 16-4.5 mmHgStandard Deviation 7.35
PlaceboPulmonary Artery Mean Pressure (PAPmean) at Rest - Change From Baseline to Week 16-4.0 mmHgStandard Deviation 9
p-value: 0.104495% CI: [-5.99, 0.057]ANCOVA
p-value: 0.529295% CI: [-5.71, 2.94]ANCOVA
p-value: 0.027895% CI: [-8.52, -0.5]ANCOVA
p-value: 0.382195% CI: [-2.25, 5.84]ANCOVA
p-value: 0.208495% CI: [-1.76, 8.02]ANCOVA
p-value: 0.544295% CI: [-5.66, 3]ANCOVA
Secondary

6-minute Walking Distance (6MWD) - Change From Baseline to Week 16

6-minute walking distance (6MWD) is a measure for the objective evaluation of a patient's functional exercise capacity.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mg6-minute Walking Distance (6MWD) - Change From Baseline to Week 1631.425 mStandard Deviation 83.386
Riociguat (Adempas, BAY63-2521) up to 1 mg6-minute Walking Distance (6MWD) - Change From Baseline to Week 1625.379 mStandard Deviation 84.244
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mg6-minute Walking Distance (6MWD) - Change From Baseline to Week 16-2.784 mStandard Deviation 90.324
Placebo6-minute Walking Distance (6MWD) - Change From Baseline to Week 1617.857 mStandard Deviation 80.851
95% CI: [-18.48, 38.81]
95% CI: [-26.76, 42.59]
95% CI: [-44.08, 31.78]
Secondary

Asymmetric Dimethylarginine (ADMA) - Change From Baseline to Week 16

Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of nitric oxides. Recent clinical studies have indicated that ADMA may have diagnostic relevance as a novel cardiovascular risk marker.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgAsymmetric Dimethylarginine (ADMA) - Change From Baseline to Week 160.020 µmol/LStandard Deviation 0.115
Riociguat (Adempas, BAY63-2521) up to 1 mgAsymmetric Dimethylarginine (ADMA) - Change From Baseline to Week 160.026 µmol/LStandard Deviation 0.118
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgAsymmetric Dimethylarginine (ADMA) - Change From Baseline to Week 160.006 µmol/LStandard Deviation 0.098
PlaceboAsymmetric Dimethylarginine (ADMA) - Change From Baseline to Week 160.020 µmol/LStandard Deviation 0.09
95% CI: [-0.04, 0.03]
95% CI: [-0.04, 0.05]
95% CI: [-0.07, 0.03]
Secondary

Borg CR 10 Scale - Change From Baseline to Week 16

The Borg CR10 Scale is a patient reported outcome measure used in clinical diagnosis of e.g. breathlessness and dyspnea. It documents the patient's exertion during a physical test. Low values indicate low levels of exertion, high values indicate more intense exertion reported by the patient. The score ranges from 0 (Nothing at all) to 10 (Extremely strong - Maximal).

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgBorg CR 10 Scale - Change From Baseline to Week 160.269 Scores on a scaleStandard Deviation 1.9
Riociguat (Adempas, BAY63-2521) up to 1 mgBorg CR 10 Scale - Change From Baseline to Week 16-0.804 Scores on a scaleStandard Deviation 2.319
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgBorg CR 10 Scale - Change From Baseline to Week 16-0.682 Scores on a scaleStandard Deviation 1.516
PlaceboBorg CR 10 Scale - Change From Baseline to Week 160.187 Scores on a scaleStandard Deviation 2.64
Secondary

Cystatin C - Change From Baseline to Week 16

Cystatin C is a biomarker for predicting new onset or deteriorating cardiovascular disease.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgCystatin C - Change From Baseline to Week 1639.3 ng/mLStandard Deviation 232.7
Riociguat (Adempas, BAY63-2521) up to 1 mgCystatin C - Change From Baseline to Week 1611.2 ng/mLStandard Deviation 218.5
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgCystatin C - Change From Baseline to Week 1671.2 ng/mLStandard Deviation 140.8
PlaceboCystatin C - Change From Baseline to Week 1658.6 ng/mLStandard Deviation 242.9
95% CI: [-117.58, 68.33]
95% CI: [-162.46, 55.88]
95% CI: [-135.78, 119.06]
Secondary

EQ-5D Utility Score - Change From Baseline to Week 16

EQ-5D utility score is a Quality-of-Life patient reported outcome measure. An increase in the utility score represents an improvement in quality of life. The score ranges from 0 (worst imaginable health state) to 100 (best imaginable health state).

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgEQ-5D Utility Score - Change From Baseline to Week 160.073 Scores on a scaleStandard Deviation 0.211
Riociguat (Adempas, BAY63-2521) up to 1 mgEQ-5D Utility Score - Change From Baseline to Week 160.016 Scores on a scaleStandard Deviation 0.242
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgEQ-5D Utility Score - Change From Baseline to Week 160.004 Scores on a scaleStandard Deviation 0.166
PlaceboEQ-5D Utility Score - Change From Baseline to Week 160.018 Scores on a scaleStandard Deviation 0.201
95% CI: [-0.04, 0.1]
95% CI: [-0.07, 0.09]
95% CI: [-0.07, 0.11]
Secondary

E-wave Deceleration Time - Change From Baseline to Week 16

E-wave deceleration time is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgE-wave Deceleration Time - Change From Baseline to Week 162.857 msecStandard Deviation 31.47
Riociguat (Adempas, BAY63-2521) up to 1 mgE-wave Deceleration Time - Change From Baseline to Week 16-0.636 msecStandard Deviation 38.138
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgE-wave Deceleration Time - Change From Baseline to Week 168.000 msecStandard Deviation 39.542
PlaceboE-wave Deceleration Time - Change From Baseline to Week 16-1.208 msecStandard Deviation 43.937
95% CI: [-7.38, 17.95]
95% CI: [-9.79, 22.73]
95% CI: [-6.14, 26.84]
Secondary

Left Ventricular Ejection Fraction (LVEF) - Change From Baseline to Week 16

The left ventricular ejection fraction work index (LVEF) is a calculated echocardiography parameter. LVEF is derived from the directly measured parameters left ventricular end-diastolic volume (LVEDV) and left ventricular end-systolic volume (LVESV). These 2 parameters are acquired during a non-invasive echocardiography examination. Formula: LEVF = 100\*(LVEDV - LVESV)/LVEDV

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgLeft Ventricular Ejection Fraction (LVEF) - Change From Baseline to Week 166.599 PercentageStandard Deviation 43.187
Riociguat (Adempas, BAY63-2521) up to 1 mgLeft Ventricular Ejection Fraction (LVEF) - Change From Baseline to Week 1612.659 PercentageStandard Deviation 41.769
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgLeft Ventricular Ejection Fraction (LVEF) - Change From Baseline to Week 165.529 PercentageStandard Deviation 48.322
PlaceboLeft Ventricular Ejection Fraction (LVEF) - Change From Baseline to Week 1611.121 PercentageStandard Deviation 42.989
95% CI: [-0.21, 1.24]
95% CI: [-0.07, 1.69]
95% CI: [-0.74, 1.15]
Secondary

Left Ventricular End-diastolic Volume (LVEDV) - Change From Baseline to Week 16

Left ventricular end-diastolic volume (LVEDV) is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgLeft Ventricular End-diastolic Volume (LVEDV) - Change From Baseline to Week 166.599 mLStandard Deviation 43.187
Riociguat (Adempas, BAY63-2521) up to 1 mgLeft Ventricular End-diastolic Volume (LVEDV) - Change From Baseline to Week 1612.659 mLStandard Deviation 41.769
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgLeft Ventricular End-diastolic Volume (LVEDV) - Change From Baseline to Week 165.529 mLStandard Deviation 48.322
PlaceboLeft Ventricular End-diastolic Volume (LVEDV) - Change From Baseline to Week 1611.121 mLStandard Deviation 42.989
95% CI: [-21.13, 12.6]
95% CI: [-17.59, 23.16]
95% CI: [-26.43, 17.2]
Secondary

Left Ventricular End-systolic Volume (LVESV) - Change From Baseline to Week 16

Left ventricular end-systolic volume (LVESV) is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgLeft Ventricular End-systolic Volume (LVESV) - Change From Baseline to Week 161.805 mLStandard Deviation 31.735
Riociguat (Adempas, BAY63-2521) up to 1 mgLeft Ventricular End-systolic Volume (LVESV) - Change From Baseline to Week 166.415 mLStandard Deviation 28.832
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgLeft Ventricular End-systolic Volume (LVESV) - Change From Baseline to Week 161.507 mLStandard Deviation 34.033
PlaceboLeft Ventricular End-systolic Volume (LVESV) - Change From Baseline to Week 167.295 mLStandard Deviation 32.311
95% CI: [-17.33, 7.22]
95% CI: [-14.55, 15.11]
95% CI: [-21.05, 10.69]
Secondary

Minnesota Living With Heart Failure Questionnaire (MLHF) Score - Change From Baseline to Week 16

The self-reported Minnesota Living with Heart Failure questionnaire (MLHF) is designed to measure the effects of PH and PH-specific treatments on an individual's quality of life. The MLHF total score can range from 0 (best) to 105 (worst).

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgMinnesota Living With Heart Failure Questionnaire (MLHF) Score - Change From Baseline to Week 16-10.789 Scores on a scaleStandard Deviation 22.232
Riociguat (Adempas, BAY63-2521) up to 1 mgMinnesota Living With Heart Failure Questionnaire (MLHF) Score - Change From Baseline to Week 16-5.132 Scores on a scaleStandard Deviation 14.111
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgMinnesota Living With Heart Failure Questionnaire (MLHF) Score - Change From Baseline to Week 16-7.595 Scores on a scaleStandard Deviation 18.651
PlaceboMinnesota Living With Heart Failure Questionnaire (MLHF) Score - Change From Baseline to Week 160.211 Scores on a scaleStandard Deviation 15.964
95% CI: [-12.81, -0.78]
95% CI: [-13.96, 0.35]
95% CI: [-15.29, 0.28]
Secondary

N-terminal Pro-brain Natriuretic Peptide (NT-pro BNP) - Change From Baseline to Week 16

N-terminal pro-brain natriuretic peptide (NT-pro BNP) levels in the blood are used for screening, diagnosis of acute congestive heart failure (CHF) and may be useful to establish prognosis in heart failure.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgN-terminal Pro-brain Natriuretic Peptide (NT-pro BNP) - Change From Baseline to Week 16-168.42 pg/mLStandard Deviation 1585.28
Riociguat (Adempas, BAY63-2521) up to 1 mgN-terminal Pro-brain Natriuretic Peptide (NT-pro BNP) - Change From Baseline to Week 16-213.48 pg/mLStandard Deviation 1204.24
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgN-terminal Pro-brain Natriuretic Peptide (NT-pro BNP) - Change From Baseline to Week 16-215.71 pg/mLStandard Deviation 769.16
PlaceboN-terminal Pro-brain Natriuretic Peptide (NT-pro BNP) - Change From Baseline to Week 16171.51 pg/mLStandard Deviation 2123.55
95% CI: [-1055.23, 240.54]
95% CI: [-1212.74, 318.22]
95% CI: [-1369.48, 334.53]
Secondary

Osteopontin - Change From Baseline to Week 16

Osteopontin is a cytokine-like pro-fibrotic mediator, which is expressed in cardiovascular tissues. Its expression is induced by increased pressure and volume load in the myocardium, kidney and lung. Therefore, osteopontin may be used as a prognostic marker in patients with cardiovascular diseases.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgOsteopontin - Change From Baseline to Week 16-13.400 µg/mLStandard Deviation 44.931
Riociguat (Adempas, BAY63-2521) up to 1 mgOsteopontin - Change From Baseline to Week 16-0.852 µg/mLStandard Deviation 22.396
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgOsteopontin - Change From Baseline to Week 16-2.722 µg/mLStandard Deviation 29.379
PlaceboOsteopontin - Change From Baseline to Week 16-4.588 µg/mLStandard Deviation 77.576
95% CI: [-30.79, 2.53]
95% CI: [-32.89, 7.43]
95% CI: [-41.53, 5]
Secondary

Percentage of Participants With Clinical Worsening

The combined endpoint time to clinical worsening, made up of the following components, defined by the first occurrence: all cause mortality, including cardiovascular mortality; first hospitalization for a cardiovascular event, including heart failure, acute myocardial infarction, stroke or ventricular arrhythmia; upgrade of the HTx (heart transplantation) status to next higher level; need for IV diuretics; persistent worsening of WHO functional class due to deterioration of PH or cardiac function.

Time frame: At visit 6 (16 weeks)

Population: Intent to Treat (ITT) - a randomized participant was valid for ITT analyses if at least one dose of study medication was administered. Only participants with a baseline and at least one post-baseline measurement were included in the analysis.

ArmMeasureValue (NUMBER)
Riociguat (Adempas, BAY63-2521) up to 2 mgPercentage of Participants With Clinical Worsening23.9 Percentage of participants
Riociguat (Adempas, BAY63-2521) up to 1 mgPercentage of Participants With Clinical Worsening15.1 Percentage of participants
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgPercentage of Participants With Clinical Worsening15.6 Percentage of participants
PlaceboPercentage of Participants With Clinical Worsening21.7 Percentage of participants
95% CI: [-13.36, 14.61]
95% CI: [-24.32, 5.39]
95% CI: [-22.26, 10.13]
Secondary

Pulmonary Capillary Wedge Pressure (PCWP) - Change From Baseline to Week 16

Pulmonary capillary wedge pressure (PCWP) is a directly measured hemodynamic parameter acquired during a right heart catheterization.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgPulmonary Capillary Wedge Pressure (PCWP) - Change From Baseline to Week 16-3.93 mmHgStandard Deviation 9.381
Riociguat (Adempas, BAY63-2521) up to 1 mgPulmonary Capillary Wedge Pressure (PCWP) - Change From Baseline to Week 160.25 mmHgStandard Deviation 9.001
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgPulmonary Capillary Wedge Pressure (PCWP) - Change From Baseline to Week 16-2.818 mmHgStandard Deviation 7.842
PlaceboPulmonary Capillary Wedge Pressure (PCWP) - Change From Baseline to Week 16-2.68 mmHgStandard Deviation 7.791
95% CI: [-5, 0.8]
95% CI: [-2.1, 4.9]
95% CI: [-4.9, 2.7]
Secondary

Pulmonary Vascular Resistance Index (PVRi) - Change From Baseline to Week 16

The pulmonary vascular resistance index (PVRi) is a calculated hemodynamic parameter. PVRi is derived from the pulmonary vascular resistance (PVR) normalized by the body surface area (BSA). Formula: PVRi = 80\*(PAPmean - PCWP)\*BSA/CO

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgPulmonary Vascular Resistance Index (PVRi) - Change From Baseline to Week 16-152.60 dyn*s*cm^-5*m^2Standard Deviation 250.366
Riociguat (Adempas, BAY63-2521) up to 1 mgPulmonary Vascular Resistance Index (PVRi) - Change From Baseline to Week 16-61.763 dyn*s*cm^-5*m^2Standard Deviation 202.138
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgPulmonary Vascular Resistance Index (PVRi) - Change From Baseline to Week 16-91.65 dyn*s*cm^-5*m^2Standard Deviation 237.256
PlaceboPulmonary Vascular Resistance Index (PVRi) - Change From Baseline to Week 16-76.47 dyn*s*cm^-5*m^2Standard Deviation 311.693
95% CI: [-172.9, 5.5]
95% CI: [-162.1, 45.6]
95% CI: [-153.7, 67.1]
Secondary

Pulmonary Vascular Resistance (PVR) - Change From Baseline to Week 16

The pulmonary vascular resistance (PVR) is a calculated hemodynamic parameter. PVR is derived from the directly measured parameters mean pulmonary arterial pressure (PAPmean) and pulmonary capillary wedge pressure (PCWP), divided by the cardiac output (CO). PVR and PAPmean are acquired during a right heart catheterization. CO is a calculated hemodynamic parameter, too. Formula: PVR = 80\*(PAPmean - PCWP)/CO

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgPulmonary Vascular Resistance (PVR) - Change From Baseline to Week 16-78.15 dyn*s*cm^-5Standard Deviation 125.261
Riociguat (Adempas, BAY63-2521) up to 1 mgPulmonary Vascular Resistance (PVR) - Change From Baseline to Week 16-33.05 dyn*s*cm^-5Standard Deviation 99.322
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgPulmonary Vascular Resistance (PVR) - Change From Baseline to Week 16-51.44 dyn*s*cm^-5Standard Deviation 124.107
PlaceboPulmonary Vascular Resistance (PVR) - Change From Baseline to Week 16-36.97 dyn*s*cm^-5Standard Deviation 157.523
95% CI: [-89.4, -3.8]
95% CI: [-84.9, 20.4]
95% CI: [-83, 30]
Secondary

Ratio of Mitral Peak Velocity of Early Filling to Mitral Peak Velocity of Late Filling (E/A) - Change From Baseline to Week 16

E/A ratio is a measured echocardiography parameter and describes the ratio of mitral peak velocity of early filling to mitral peak velocity of late filling. It is acquired during a non-invasive echocardiography examination.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgRatio of Mitral Peak Velocity of Early Filling to Mitral Peak Velocity of Late Filling (E/A) - Change From Baseline to Week 16-0.247 E/A ratioStandard Deviation 0.957
Riociguat (Adempas, BAY63-2521) up to 1 mgRatio of Mitral Peak Velocity of Early Filling to Mitral Peak Velocity of Late Filling (E/A) - Change From Baseline to Week 160.141 E/A ratioStandard Deviation 1.261
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgRatio of Mitral Peak Velocity of Early Filling to Mitral Peak Velocity of Late Filling (E/A) - Change From Baseline to Week 16-0.063 E/A ratioStandard Deviation 0.884
PlaceboRatio of Mitral Peak Velocity of Early Filling to Mitral Peak Velocity of Late Filling (E/A) - Change From Baseline to Week 16-0.175 E/A ratioStandard Deviation 1.079
95% CI: [-0.55, 0.24]
95% CI: [-0.34, 0.67]
95% CI: [-0.45, 0.56]
Secondary

Systemic Vascular Resistance Index (SVRi) - Change From Baseline to Week 16

The systemic vascular resistance index (SVRi) is a calculated hemodynamic parameter. SVRi is derived from the systemic vascular resistance (SVR) normalized by the body surface area (BSA). Formula: SVRi = 80\*(SAPmean - RAPmean)\*BSA/CO

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgSystemic Vascular Resistance Index (SVRi) - Change From Baseline to Week 16-651.98 dyn*s*cm^-5*m^2Standard Deviation 757.617
Riociguat (Adempas, BAY63-2521) up to 1 mgSystemic Vascular Resistance Index (SVRi) - Change From Baseline to Week 16-217.14 dyn*s*cm^-5*m^2Standard Deviation 742.465
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgSystemic Vascular Resistance Index (SVRi) - Change From Baseline to Week 16-100.31 dyn*s*cm^-5*m^2Standard Deviation 612.46
PlaceboSystemic Vascular Resistance Index (SVRi) - Change From Baseline to Week 16-195.11 dyn*s*cm^-5*m^2Standard Deviation 853.927
95% CI: [-687.4, -205.6]
95% CI: [-530.4, 67.2]
95% CI: [-353.7, 283.7]
Secondary

Systemic Vascular Resistance (SVR) - Change From Baseline to Week 16

The systemic vascular resistance (SVR) is a calculated hemodynamic parameter. SVR is derived from the directly measured parameter mean right atrial pressure (RAPmean) and the calculated parameter mean systemic arterial pressure (SAPmean) divided by the cardiac output (CO). RAPmean is acquired during a right heart catheterization. CO is a calculated hemodynamic parameter, too. Formula: SVR = 80\*(SAPmean - RAPmean)/CO

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgSystemic Vascular Resistance (SVR) - Change From Baseline to Week 16-340.44 dyn*s*cm^-5Standard Deviation 394.87
Riociguat (Adempas, BAY63-2521) up to 1 mgSystemic Vascular Resistance (SVR) - Change From Baseline to Week 16-118.72 dyn*s*cm^-5Standard Deviation 369.865
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgSystemic Vascular Resistance (SVR) - Change From Baseline to Week 16-67.46 dyn*s*cm^-5Standard Deviation 315.097
PlaceboSystemic Vascular Resistance (SVR) - Change From Baseline to Week 16-94.37 dyn*s*cm^-5Standard Deviation 431.049
95% CI: [-363.4, -115.3]
95% CI: [-274.4, 32.6]
95% CI: [-189.3, 138.2]
Secondary

Systolic Pulmonary Arterial Pressure (PAPsyst) - Change From Baseline to Week 16

Systolic pulmonary arterial pressure (PAPsyst) is a directly measured hemodynamic parameter acquired during a right heart catheterization.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgSystolic Pulmonary Arterial Pressure (PAPsyst) - Change From Baseline to Week 16-7.69 mmHgStandard Deviation 14.251
Riociguat (Adempas, BAY63-2521) up to 1 mgSystolic Pulmonary Arterial Pressure (PAPsyst) - Change From Baseline to Week 16-2.89 mmHgStandard Deviation 12.333
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgSystolic Pulmonary Arterial Pressure (PAPsyst) - Change From Baseline to Week 16-5.86 mmHgStandard Deviation 11.589
PlaceboSystolic Pulmonary Arterial Pressure (PAPsyst) - Change From Baseline to Week 16-4.49 mmHgStandard Deviation 13.717
95% CI: [-8.76, 1.09]
95% CI: [-6.05, 6.01]
95% CI: [-8.93, 4.06]
Secondary

Transpulmonary Pressure Gradient (TPG) - Change From Baseline to Week 16

The transpulmonary pressure gradient (TPG) is a calculated hemodynamic parameter. TPG is calculated from the directly measured parameters mean pulmonary arterial pressure (PAPmean) and pulmonary capillary wedge pressure (PCWP). These 2 parameters are acquired during a right heart catheterization. Formula: TPG = PAPmean - PCWP

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgTranspulmonary Pressure Gradient (TPG) - Change From Baseline to Week 16-2.16 mmHgStandard Deviation 4.795
Riociguat (Adempas, BAY63-2521) up to 1 mgTranspulmonary Pressure Gradient (TPG) - Change From Baseline to Week 16-1.01 mmHgStandard Deviation 5.224
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgTranspulmonary Pressure Gradient (TPG) - Change From Baseline to Week 16-1.65 mmHgStandard Deviation 4.652
PlaceboTranspulmonary Pressure Gradient (TPG) - Change From Baseline to Week 16-1.37 mmHgStandard Deviation 7.001
95% CI: [-3.1, 0.5]
95% CI: [-3.1, 1.3]
95% CI: [-3.2, 1.5]
Secondary

Tricuspid Annular Plane Systolic Excursion (TAPSE) - Change From Baseline to Week 16

The tricuspid annular plane systolic excursion (TAPSE) is a measured echocardiography parameter. It is acquired during a non-invasive echocardiography examination.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgTricuspid Annular Plane Systolic Excursion (TAPSE) - Change From Baseline to Week 160.584 mmStandard Deviation 2.344
Riociguat (Adempas, BAY63-2521) up to 1 mgTricuspid Annular Plane Systolic Excursion (TAPSE) - Change From Baseline to Week 161.140 mmStandard Deviation 2.986
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgTricuspid Annular Plane Systolic Excursion (TAPSE) - Change From Baseline to Week 160.304 mmStandard Deviation 2.109
PlaceboTricuspid Annular Plane Systolic Excursion (TAPSE) - Change From Baseline to Week 160.393 mmStandard Deviation 1.586
95% CI: [-0.58, 1.14]
95% CI: [-0.23, 1.87]
95% CI: [-1.11, 1.06]
Secondary

Troponin T - Change From Baseline to Week 16

Troponin T is a cardiac-specific protein which is released from damaged or injured heart muscle cells.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgTroponin T - Change From Baseline to Week 160.005 µg/LStandard Deviation 0.027
Riociguat (Adempas, BAY63-2521) up to 1 mgTroponin T - Change From Baseline to Week 16-0.008 µg/LStandard Deviation 0.042
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgTroponin T - Change From Baseline to Week 16-0.001 µg/LStandard Deviation 0.006
PlaceboTroponin T - Change From Baseline to Week 160.003 µg/LStandard Deviation 0.015
95% CI: [-0.01, 0.01]
95% CI: [-0.02, 0]
95% CI: [-0.02, 0.01]
Secondary

Venous Oxygen Saturation (SvO2) - Change From Baseline to Week 16

The mixed venous oxygen saturation rate (SvO2) is a directly measured hemodynamic parameter. SvO2 is recorded during a right heart catheterization.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureValue (MEAN)Dispersion
Riociguat (Adempas, BAY63-2521) up to 2 mgVenous Oxygen Saturation (SvO2) - Change From Baseline to Week 161.98 PercentageStandard Deviation 7.084
Riociguat (Adempas, BAY63-2521) up to 1 mgVenous Oxygen Saturation (SvO2) - Change From Baseline to Week 160.46 PercentageStandard Deviation 7.866
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgVenous Oxygen Saturation (SvO2) - Change From Baseline to Week 16-0.21 PercentageStandard Deviation 5.969
PlaceboVenous Oxygen Saturation (SvO2) - Change From Baseline to Week 161.28 PercentageStandard Deviation 9.259
95% CI: [-0.83, 4.56]
95% CI: [-3.12, 3.51]
95% CI: [-3.31, 3.77]
Secondary

WHO (World Health Organization) Functional Class - Change From Baseline to Week 16

The WHO functional assessment of pulmonary arterial hypertension ranged from functional class I (Patients with PH but without resulting limitation of physical activity) to class IV (Patients with PH with inability to carry out any physical activity without symptoms. These patients manifest signs of right-heart failure.). Changes to a lower WHO functional class resemble improvement, changes to a higher functional class resemble deterioration of PAH.

Time frame: Baseline and visit 6 (16 weeks)

Population: Per-protocol set (PPS) - A subject was included in the PPS if he/she was valid for SAF/ITT and showed no major protocol deviations affecting efficacy. Only participants with a baseline and at least one post-baseline measurement were included in this analysis.

ArmMeasureGroupValue (NUMBER)
Riociguat (Adempas, BAY63-2521) up to 2 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 16-120.4 Percentage of participants
Riociguat (Adempas, BAY63-2521) up to 2 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 1615.6 Percentage of participants
Riociguat (Adempas, BAY63-2521) up to 2 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 16074.1 Percentage of participants
Riociguat (Adempas, BAY63-2521) up to 1 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 16-121.4 Percentage of participants
Riociguat (Adempas, BAY63-2521) up to 1 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 1613.6 Percentage of participants
Riociguat (Adempas, BAY63-2521) up to 1 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 16075 Percentage of participants
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 16068.2 Percentage of participants
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 16-122.7 Percentage of participants
Riociguat (Adempas, BAY63-2521) Fixed 0.5 mgWHO (World Health Organization) Functional Class - Change From Baseline to Week 1619.1 Percentage of participants
PlaceboWHO (World Health Organization) Functional Class - Change From Baseline to Week 16-119.6 Percentage of participants
PlaceboWHO (World Health Organization) Functional Class - Change From Baseline to Week 1618.9 Percentage of participants
PlaceboWHO (World Health Organization) Functional Class - Change From Baseline to Week 16071.4 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Aug 21, 2026