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Safety and Efficacy of Imatinib Mesylate in Patients With Pulmonary Arterial Hypertension

A Randomised, Double-blind, Placebo-controlled Study to Evaluate the Safety and Efficacy of the Six Months Treatment With the Tyrosine Kinase Inhibitor STI571 for the Treatment of Pulmonary Arterial Hypertension (PAH)

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00477269
Enrollment
59
Registered
2007-05-23
Start date
2006-04-30
Completion date
2014-01-31
Last updated
2015-03-23

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

Conditions

Pulmonary Arterial Hypertension

Keywords

Pulmonary Arterial Hypertension, tyrosine kinase inhibitor, STI571

Brief summary

This study will evaluate the safety, tolerability, and efficacy of imatinib mesylate in patients with pulmonary arterial hypertension

Interventions

DRUGImatinib mesylate
DRUGPlacebo

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Diagnosis of PAH of either primary (idiopathic), familial or secondary to systemic sclerosis (excluding those with marked pulmonary fibrosis) according to World Conference on Pulmonary Hypertension classification (Venice, 2003). * Symptoms with a WHO class of II-IV

Exclusion criteria

* Use of unspecific phosphodiesterase inhibitors (for example, pentoxyfillin, enoximon, milrinone or pimobendan) during the study * Chronic inhaled nitric oxide therapy from start to study completion * Treatment with catecholamines (for example, adrenalin, noradrenalin, dopamine), * Pre-existing lung diseases, including parasitic diseases affecting lungs, asthma, congenital abnormalities of the lungs, chest, and diaphragm. * Pulmonary artery or valve stenosis; pulmonary venous hypertension; chronic thromboembolic pulmonary hypertension * Acute heart failure or chronic left sided heart failure; congenital or acquired valvular or myocardial disease * Severe (systemic) arterial hypertension (\> 200 mmHg (systolic) or \> 120 mmHg (diastolic)) Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the Core6 monthsIn this analysis patients with all (serious and non -serious) adverse events, and death were reported. See Safety Section.
Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the Extension72 monthsIn this analysis patients with all (serious and non -serious) adverse events, and death were reported. See Safety Section.
Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Distance \<500 meters suggests considerable exercise limitation; Distance 500-800 meters suggests moderate limitation; Distance \>800 meters (with no rests) suggests mild or no limitation.
Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Number of stops were recorded for each patient.
Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. If the patient stopped the duration of each stop was recorded.

Secondary

MeasureTime frameDescription
Borg Score During the Six Minutes Walk Test at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)Borg Score during Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Borg Score of Breathlessness was recorded using the following score of 0 to 10, how breathless do you feel? 0 is nothing at all and 10 is maximal breathlessness
Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including right Pulmonary Arterial Pressure (PAP). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.
Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Pulmonary Arterial Wedge Pressure (PAWP). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.
Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Systolic Arterial Pressure (SAP). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.
Mean Heart Rate (HR) at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Heart Rate (HR). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.
Mean Cardiac Output (CO) at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Cardiac Output (CO). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.
Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Pulmonary Vascular Resistance (PVR). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration. PVR calculated according to the equation:PVR = (PAP - PCWP)/CO
Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completionPAH assessed according to the WHO classification: Class I Patients with PAH but without resulting limitation of physical activity. Ordinary physical activity does not cause undue dyspnea or fatigue, chest pain or near syncope. Class II Patients with PAH resulting in slight limitation of physical activity. They are comfortable at rest. Ordinary physical activity causes undue dyspnea or fatigue, chest pain or near syncope. Class III Patients with PAH resulting in marked limitation of physical activity. They are comfortable at rest. Less than ordinary activity causes undue dyspnea or fatigue, chest pain or near syncope. Class IV Patients with PAH with inability to carry out any physical activity without symptoms. These patients manifest signs of right heart failure. Dyspnea and/or fatigue may even be present at rest. Discomfort is increased by any physical activity.
Blood Gas Measurement - PvO2 at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including PvO2 levels at baseline and Study completion Week 24.
Blood Gas Measurement - PaO2 at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including PaO2 levels at baseline and Study completion Week 24.
Blood Gas Measurement - PaCO2 at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including PaCO2 levels at baseline and Study completion Week 24.
Blood Gas Measurement - Arterial Saturation at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including Arterial Saturation levels at baseline and Study completion Week 24.
Blood Gas Measurement - Venous Saturation at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including Venous Saturation levels at baseline and Study completion Week 24.
Blood Gas Measurement - pH at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including pH levels at baseline and Study completion Week 24. The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic.
Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline, and Study completion (Week 24)The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Systemic Vascular Resistance (SVR). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration. SVR was calculated according to the equation: SVR = (Paorta - Pright atrium)/CO
Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. The test was terminated if the patient became too distressed or if their SaO2% fell below 60%.
Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Systolic blood pressure (mmHg) were recorded before the test at resting, at the end of the test and two minutes after the end of the test
Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Diastolic blood pressure (mmHg) were recorded before the test at resting, at the end of the test and two minutes after the end of the test
Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsBaseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Heart Rate (bpm) were recorded before the test at resting, at the end of the test and two minutes after the end of the test

Countries

Austria, Germany, United Kingdom, United States

Participant flow

Recruitment details

Of the 42 participants that completed the Core Study only 22 Participants continued into the Open Label Extension. Not all participants were required to continue into the extension from the core.

Participants by arm

ArmCount
STI571
STI571
28
Placebo
Placebo
31
Total59

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Core StudyAdverse Event640
Core StudyDeath330
Core StudyWithdrawn Consent010
Open Label ExtensionAbnormal laboratory values001
Open Label ExtensionAdminiatrative problems002
Open Label ExtensionAdverse Event004
Open Label ExtensionDeath004
Open Label Extensionunsatisfactory therapeutic effects002

Baseline characteristics

CharacteristicSTI571PlaceboTotal
Age, Continuous44.4 years
STANDARD_DEVIATION 15.3
44.2 years
STANDARD_DEVIATION 15.7
44.3 years
STANDARD_DEVIATION 15.4
Sex: Female, Male
Female
18 Participants22 Participants40 Participants
Sex: Female, Male
Male
10 Participants9 Participants19 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
26 / 2825 / 3121 / 22
serious
Total, serious adverse events
12 / 2811 / 3116 / 22

Outcome results

Primary

Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periods

The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Number of stops were recorded for each patient.

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time PeriodsDay 32 (n=25,27)-0.2 number of stopsStandard Deviation 0.7
STI571Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 8 (n=23,24)-0.2 number of stopsStandard Deviation 0.7
STI571Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 12 (n=22,24)-0.3 number of stopsStandard Deviation 0.9
STI571Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 16 (n=19, 23)-0.3 number of stopsStandard Deviation 0.8
STI571Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 20 (n=19, 21)-0.4 number of stopsStandard Deviation 1
STI571Change From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsstudy completion Week 24 (n=21, 12)-0.3 number of stopsStandard Deviation 0.8
PlaceboChange From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 20 (n=19, 21)0.3 number of stopsStandard Deviation 1
PlaceboChange From Baseline of Six Minute Walk Test - Number of Stops at Different Time PeriodsDay 32 (n=25,27)0.1 number of stopsStandard Deviation 0.4
PlaceboChange From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 16 (n=19, 23)0.0 number of stopsStandard Deviation 0.2
PlaceboChange From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 8 (n=23,24)0.0 number of stopsStandard Deviation 1.1
PlaceboChange From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsstudy completion Week 24 (n=21, 12)-0.1 number of stopsStandard Deviation 0.5
PlaceboChange From Baseline of Six Minute Walk Test - Number of Stops at Different Time Periodsweek 12 (n=22,24)0.3 number of stopsStandard Deviation 0.9
Primary

Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periods

The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Distance \<500 meters suggests considerable exercise limitation; Distance 500-800 meters suggests moderate limitation; Distance \>800 meters (with no rests) suggests mild or no limitation.

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time PeriodsDay 32 (n=25,27)10.2 metersStandard Deviation 53.7
STI571Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 8 (n=23,24)17.0 metersStandard Deviation 55.6
STI571Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 12 (n=22,24)21 metersStandard Deviation 36.2
STI571Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 16 (n=19, 23)25.5 metersStandard Deviation 43.1
STI571Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 20 (n=19, 21)38.3 metersStandard Deviation 42.5
STI571Change From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsstudy completion Week 24 (n=21, 12)22.0 metersStandard Deviation 63.1
PlaceboChange From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 20 (n=19, 21)12.8 metersStandard Deviation 60.4
PlaceboChange From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time PeriodsDay 32 (n=25,27)8.2 metersStandard Deviation 27.5
PlaceboChange From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 16 (n=19, 23)12.1 metersStandard Deviation 47.9
PlaceboChange From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 8 (n=23,24)15.5 metersStandard Deviation 40.8
PlaceboChange From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsstudy completion Week 24 (n=21, 12)-1.0 metersStandard Deviation 53.3
PlaceboChange From Baseline of Six Minute Walk Test - Total Distance Walked at Different Time Periodsweek 12 (n=22,24)7.8 metersStandard Deviation 50
Primary

Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periods

The Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. If the patient stopped the duration of each stop was recorded.

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time PeriodsDay 32 (n=25,27)-0.06 minutesStandard Deviation 0.19
STI571Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 8 (n=23,24)-0.03 minutesStandard Deviation 0.1
STI571Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 12 (n=22,24)-0.03 minutesStandard Deviation 0.1
STI571Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 16 (n=19, 23)-0.03 minutesStandard Deviation 0.1
STI571Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 20 (n=19, 21)-0.05 minutesStandard Deviation 0.15
STI571Change From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsstudy completion Week 24 (n=21, 12)-0.02 minutesStandard Deviation 0.1
PlaceboChange From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 20 (n=19, 21)0.12 minutesStandard Deviation 0.42
PlaceboChange From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time PeriodsDay 32 (n=25,27)0.12 minutesStandard Deviation 0.36
PlaceboChange From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 16 (n=19, 23)0.06 minutesStandard Deviation 0.26
PlaceboChange From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 8 (n=23,24)0.07 minutesStandard Deviation 0.27
PlaceboChange From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsstudy completion Week 24 (n=21, 12)0.03 minutesStandard Deviation 0.18
PlaceboChange From Baseline of Six Minute Walk Test - Total Duration of Stops at Different Time Periodsweek 12 (n=22,24)0.19 minutesStandard Deviation 0.55
Primary

Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the Core

In this analysis patients with all (serious and non -serious) adverse events, and death were reported. See Safety Section.

Time frame: 6 months

Population: Safety Population all participants enrolled was included in this population

ArmMeasureGroupValue (NUMBER)
STI571Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the CorePaients with AE(s)27 participants
STI571Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the CoreDeath3 participants
STI571Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the CoreSAE(s)12 participants
PlaceboNumber of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the CorePaients with AE(s)29 participants
PlaceboNumber of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the CoreDeath3 participants
PlaceboNumber of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the CoreSAE(s)11 participants
Primary

Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the Extension

In this analysis patients with all (serious and non -serious) adverse events, and death were reported. See Safety Section.

Time frame: 72 months

Population: No formal statistical analysis was performed in the extension phase of this study so no analysis data sets were defined. All summaries are based on all patients enrolled.

ArmMeasureGroupValue (NUMBER)
STI571Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the ExtensionAny AE(s)22 participants
STI571Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the ExtensionDeath4 participants
STI571Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs) and Death During the ExtensionSAE(s)16 participants
Secondary

Blood Gas Measurement - Arterial Saturation at Baseline and Study Completion

The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including Arterial Saturation levels at baseline and Study completion Week 24.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Blood Gas Measurement - Arterial Saturation at Baseline and Study CompletionBaseline n=19,1687.99 percentage of saturationStandard Deviation 9.19
STI571Blood Gas Measurement - Arterial Saturation at Baseline and Study CompletionWeek 24 n=14,1592.89 percentage of saturationStandard Deviation 4.5
PlaceboBlood Gas Measurement - Arterial Saturation at Baseline and Study CompletionBaseline n=19,1691.81 percentage of saturationStandard Deviation 4.05
PlaceboBlood Gas Measurement - Arterial Saturation at Baseline and Study CompletionWeek 24 n=14,1591.78 percentage of saturationStandard Deviation 3.36
Secondary

Blood Gas Measurement - PaCO2 at Baseline and Study Completion

The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including PaCO2 levels at baseline and Study completion Week 24.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Blood Gas Measurement - PaCO2 at Baseline and Study CompletionBaseline n=23,2132.70 mmHgStandard Deviation 4.4
STI571Blood Gas Measurement - PaCO2 at Baseline and Study CompletionWeek 24 n=16,1733.36 mmHgStandard Deviation 5.11
PlaceboBlood Gas Measurement - PaCO2 at Baseline and Study CompletionBaseline n=23,2130.02 mmHgStandard Deviation 4.76
PlaceboBlood Gas Measurement - PaCO2 at Baseline and Study CompletionWeek 24 n=16,1730.23 mmHgStandard Deviation 3.55
Secondary

Blood Gas Measurement - PaO2 at Baseline and Study Completion

The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including PaO2 levels at baseline and Study completion Week 24.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Blood Gas Measurement - PaO2 at Baseline and Study CompletionBaseline n=22,2163.36 mmHgStandard Deviation 14.33
STI571Blood Gas Measurement - PaO2 at Baseline and Study CompletionWeek 24 n=16,1772.49 mmHgStandard Deviation 14.09
PlaceboBlood Gas Measurement - PaO2 at Baseline and Study CompletionBaseline n=22,2163.75 mmHgStandard Deviation 12.02
PlaceboBlood Gas Measurement - PaO2 at Baseline and Study CompletionWeek 24 n=16,1770.13 mmHgStandard Deviation 16.72
Secondary

Blood Gas Measurement - pH at Baseline and Study Completion

The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including pH levels at baseline and Study completion Week 24. The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Blood Gas Measurement - pH at Baseline and Study CompletionBaseline n=24,237.43 pH scaleStandard Deviation 0.04
STI571Blood Gas Measurement - pH at Baseline and Study CompletionWeek 24 n=17,177.44 pH scaleStandard Deviation 0.05
PlaceboBlood Gas Measurement - pH at Baseline and Study CompletionBaseline n=24,237.44 pH scaleStandard Deviation 0.05
PlaceboBlood Gas Measurement - pH at Baseline and Study CompletionWeek 24 n=17,177.46 pH scaleStandard Deviation 0.05
Secondary

Blood Gas Measurement - PvO2 at Baseline and Study Completion

The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including PvO2 levels at baseline and Study completion Week 24.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Blood Gas Measurement - PvO2 at Baseline and Study CompletionBaseline n=14,1433.16 mmHgStandard Deviation 4.62
STI571Blood Gas Measurement - PvO2 at Baseline and Study CompletionWeek 24 n=11,1135.56 mmHgStandard Deviation 3.8
PlaceboBlood Gas Measurement - PvO2 at Baseline and Study CompletionBaseline n=14,1434.70 mmHgStandard Deviation 4.75
PlaceboBlood Gas Measurement - PvO2 at Baseline and Study CompletionWeek 24 n=11,1132.65 mmHgStandard Deviation 4.18
Secondary

Blood Gas Measurement - Venous Saturation at Baseline and Study Completion

The right heart catheter assessment was performed to assess Blood Gas Measurements in pulmonary hypertension, including Venous Saturation levels at baseline and Study completion Week 24.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Blood Gas Measurement - Venous Saturation at Baseline and Study CompletionBaseline n=17,1457.96 percentage of saturationStandard Deviation 10.48
STI571Blood Gas Measurement - Venous Saturation at Baseline and Study CompletionWeek 24 n=13,1365.11 percentage of saturationStandard Deviation 6.91
PlaceboBlood Gas Measurement - Venous Saturation at Baseline and Study CompletionBaseline n=17,1460.84 percentage of saturationStandard Deviation 6.61
PlaceboBlood Gas Measurement - Venous Saturation at Baseline and Study CompletionWeek 24 n=13,1357.00 percentage of saturationStandard Deviation 9.18
Secondary

Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time Periods

Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Diastolic blood pressure (mmHg) were recorded before the test at resting, at the end of the test and two minutes after the end of the test

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 26, 28)68.2 mmHgStandard Deviation 10.2
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 21, 26)75.1 mmHgStandard Deviation 10.8
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=25, 27)71.6 mmHgStandard Deviation 9.8
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 27)69.6 mmHgStandard Deviation 10.4
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 22, 22)78.2 mmHgStandard Deviation 12.3
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)72.5 mmHgStandard Deviation 9.1
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 22, 24)67.7 mmHgStandard Deviation 11.8
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 19, 20)74.8 mmHgStandard Deviation 10.8
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 24)71.2 mmHgStandard Deviation 10.3
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 23)65.5 mmHgStandard Deviation 8.3
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 17, 19)75.6 mmHgStandard Deviation 11.5
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 20, 22)73.1 mmHgStandard Deviation 8.9
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 22)67.7 mmHgStandard Deviation 9.9
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 15,18)72.7 mmHgStandard Deviation 9.2
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 22)71.4 mmHgStandard Deviation 11
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 20)67.2 mmHgStandard Deviation 8
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 16,17)72.9 mmHgStandard Deviation 8.7
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 20)71.9 mmHgStandard Deviation 9.2
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 21)69.7 mmHgStandard Deviation 10.3
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 16, 17)74.1 mmHgStandard Deviation 10.7
STI571Borg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 19)71.3 mmHgStandard Deviation 10.1
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 17, 19)72.4 mmHgStandard Deviation 14.3
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 26, 28)67.9 mmHgStandard Deviation 8.9
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 21)70.7 mmHgStandard Deviation 10.9
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 21, 26)69.5 mmHgStandard Deviation 11.9
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 20, 22)72.0 mmHgStandard Deviation 13.7
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=25, 27)67.9 mmHgStandard Deviation 9.6
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 16,17)72.9 mmHgStandard Deviation 8.1
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 27)68.4 mmHgStandard Deviation 8.8
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 22)66.7 mmHgStandard Deviation 7.7
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 22, 22)75.2 mmHgStandard Deviation 11.2
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 19)72.9 mmHgStandard Deviation 9.5
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)70.7 mmHgStandard Deviation 9.4
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 15,18)76.7 mmHgStandard Deviation 8.6
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 22, 24)68.8 mmHgStandard Deviation 9
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 20)72.7 mmHgStandard Deviation 9.8
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 19, 20)74.0 mmHgStandard Deviation 10.9
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 22)70.5 mmHgStandard Deviation 8
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 24)72.2 mmHgStandard Deviation 11.7
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 16, 17)72.3 mmHgStandard Deviation 10.9
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 23)70.6 mmHgStandard Deviation 11.6
PlaceboBorg Score-Diastolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 20)69.8 mmHgStandard Deviation 8.8
Secondary

Borg Score During the Six Minutes Walk Test at Different Time Periods

Borg Score during Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Borg Score of Breathlessness was recorded using the following score of 0 to 10, how breathless do you feel? 0 is nothing at all and 10 is maximal breathlessness

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 26, 27)0.27 score on a scaleStandard Deviation 0.83
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 27, 29)3.34 score on a scaleStandard Deviation 2.3
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=24, 26)0.88 score on a scaleStandard Deviation 1.67
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 27)0.24 score on a scaleStandard Deviation 0.83
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 25, 28)2.53 score on a scaleStandard Deviation 2.02
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)0.65 score on a scaleStandard Deviation 2.06
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 23, 24)0.32 score on a scaleStandard Deviation 1.02
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 23, 25)2.46 score on a scaleStandard Deviation 2.02
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 24)0.32 score on a scaleStandard Deviation 0.92
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 24)0.05 score on a scaleStandard Deviation 0.21
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 22, 25)2.27 score on a scaleStandard Deviation 1.59
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 22, 23)0.35 score on a scaleStandard Deviation 0.68
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 23)0.13 score on a scaleStandard Deviation 0.33
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 18, 23)2.50 score on a scaleStandard Deviation 1.91
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 23)0.41 score on a scaleStandard Deviation 0.72
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 21)0.05 score on a scaleStandard Deviation 0.16
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 18,22)2.31 score on a scaleStandard Deviation 1.7
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 18, 20)0.31 score on a scaleStandard Deviation 0.55
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 21)0.18 score on a scaleStandard Deviation 0.49
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 20, 21)2.58 score on a scaleStandard Deviation 1.87
STI571Borg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 20)0.29 score on a scaleStandard Deviation 0.62
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 22, 25)2.92 score on a scaleStandard Deviation 1.95
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 26, 27)0.43 score on a scaleStandard Deviation 0.92
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 21)0.40 score on a scaleStandard Deviation 0.82
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 27, 29)3.02 score on a scaleStandard Deviation 1.59
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 22, 23)0.65 score on a scaleStandard Deviation 1.06
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=24, 26)1.08 score on a scaleStandard Deviation 1.47
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 18,22)3.11 score on a scaleStandard Deviation 2.17
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 27)0.48 score on a scaleStandard Deviation 0.86
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 23)0.50 score on a scaleStandard Deviation 1.23
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 25, 28)3.07 score on a scaleStandard Deviation 2.08
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 20)0.67 score on a scaleStandard Deviation 1.07
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)1.06 score on a scaleStandard Deviation 1.34
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 18, 23)2.83 score on a scaleStandard Deviation 1.69
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 23, 24)0.38 score on a scaleStandard Deviation 0.81
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 18, 20)0.75 score on a scaleStandard Deviation 1.15
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 23, 25)2.32 score on a scaleStandard Deviation 1.64
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 23)0.70 score on a scaleStandard Deviation 1.25
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 24)0.58 score on a scaleStandard Deviation 1.04
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 20, 21)2.93 score on a scaleStandard Deviation 1.9
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 24)0.46 score on a scaleStandard Deviation 0.97
PlaceboBorg Score During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 21)0.67 score on a scaleStandard Deviation 1.14
Secondary

Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time Periods

Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Heart Rate (bpm) were recorded before the test at resting, at the end of the test and two minutes after the end of the test

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 28, 29)80.8 beats per minute (bpm)Standard Deviation 13
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 28, 29)106.3 beats per minute (bpm)Standard Deviation 23.9
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=26, 26)84.2 beats per minute (bpm)Standard Deviation 16.9
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 28)80.7 beats per minute (bpm)Standard Deviation 14.3
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 25, 28)108.4 beats per minute (bpm)Standard Deviation 19.1
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)89.2 beats per minute (bpm)Standard Deviation 17
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 23, 25)80.3 beats per minute (bpm)Standard Deviation 9.6
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 23, 24)109.5 beats per minute (bpm)Standard Deviation 21.4
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 23)85.3 beats per minute (bpm)Standard Deviation 15.7
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 25)76.5 beats per minute (bpm)Standard Deviation 13.2
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 20, 25)105.3 beats per minute (bpm)Standard Deviation 26.2
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 19, 22)83.8 beats per minute (bpm)Standard Deviation 17.8
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 24)76.5 beats per minute (bpm)Standard Deviation 13.2
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 18, 23)102.8 beats per minute (bpm)Standard Deviation 25.6
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 21)85.8 beats per minute (bpm)Standard Deviation 21
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 22)75.3 beats per minute (bpm)Standard Deviation 13.8
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 18,22)109.2 beats per minute (bpm)Standard Deviation 26.8
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 21)83.3 beats per minute (bpm)Standard Deviation 17.4
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 22)79.5 beats per minute (bpm)Standard Deviation 13.8
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 20, 21)110.2 beats per minute (bpm)Standard Deviation 18.1
STI571Borg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 21)87.9 beats per minute (bpm)Standard Deviation 17.5
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 20, 25)113.0 beats per minute (bpm)Standard Deviation 26.5
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 28, 29)87.9 beats per minute (bpm)Standard Deviation 12.7
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 22)83.6 beats per minute (bpm)Standard Deviation 8.6
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 28, 29)112.3 beats per minute (bpm)Standard Deviation 20.4
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 19, 22)89.4 beats per minute (bpm)Standard Deviation 15.7
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=26, 26)94.1 beats per minute (bpm)Standard Deviation 14.6
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 18,22)118.0 beats per minute (bpm)Standard Deviation 24.5
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 28)83.6 beats per minute (bpm)Standard Deviation 15.7
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 24)84.4 beats per minute (bpm)Standard Deviation 12.9
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 25, 28)113.1 beats per minute (bpm)Standard Deviation 19.5
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 21)88.9 beats per minute (bpm)Standard Deviation 11.8
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)90.6 beats per minute (bpm)Standard Deviation 14.1
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 18, 23)117.9 beats per minute (bpm)Standard Deviation 24.3
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 23, 25)81.1 beats per minute (bpm)Standard Deviation 11.2
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 21)87.3 beats per minute (bpm)Standard Deviation 11.4
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 23, 24)110.3 beats per minute (bpm)Standard Deviation 26.4
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 21)85.5 beats per minute (bpm)Standard Deviation 14.4
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 23)88.9 beats per minute (bpm)Standard Deviation 13.2
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 20, 21)116.8 beats per minute (bpm)Standard Deviation 21.7
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 25)85.1 beats per minute (bpm)Standard Deviation 13.2
PlaceboBorg Score-Heart Rate (HR) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 22)80.2 beats per minute (bpm)Standard Deviation 9.6
Secondary

Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time Periods

Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. The test was terminated if the patient became too distressed or if their SaO2% fell below 60%.

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 28, 29)94.3 Percentage of Oxygen SaturationStandard Deviation 4.6
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 28, 28)87.9 Percentage of Oxygen SaturationStandard Deviation 12.4
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=26, 26)93.0 Percentage of Oxygen SaturationStandard Deviation 7
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 28)94.5 Percentage of Oxygen SaturationStandard Deviation 4
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 25, 28)89.0 Percentage of Oxygen SaturationStandard Deviation 11.2
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)94.8 Percentage of Oxygen SaturationStandard Deviation 4.6
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 23, 25)95.1 Percentage of Oxygen SaturationStandard Deviation 3.3
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 23, 24)90.9 Percentage of Oxygen SaturationStandard Deviation 6.7
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 23)94.4 Percentage of Oxygen SaturationStandard Deviation 5.3
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 25)95.1 Percentage of Oxygen SaturationStandard Deviation 4.8
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 20, 24)89.8 Percentage of Oxygen SaturationStandard Deviation 9.2
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 19, 22)92.7 Percentage of Oxygen SaturationStandard Deviation 8.9
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 24)95.0 Percentage of Oxygen SaturationStandard Deviation 5
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 18, 23)87.9 Percentage of Oxygen SaturationStandard Deviation 13.1
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 19)94.6 Percentage of Oxygen SaturationStandard Deviation 6
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 22)94.0 Percentage of Oxygen SaturationStandard Deviation 4.7
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 18, 21)87.5 Percentage of Oxygen SaturationStandard Deviation 13.2
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 21)93.8 Percentage of Oxygen SaturationStandard Deviation 7.1
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 22)95.5 Percentage of Oxygen SaturationStandard Deviation 3.4
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 20, 21)89.9 Percentage of Oxygen SaturationStandard Deviation 7.1
STI571Borg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 21)94.8 Percentage of Oxygen SaturationStandard Deviation 4.3
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 20, 24)89.6 Percentage of Oxygen SaturationStandard Deviation 8.9
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 28, 29)93.4 Percentage of Oxygen SaturationStandard Deviation 4.7
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 22)94.3 Percentage of Oxygen SaturationStandard Deviation 4.6
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 28, 28)87.9 Percentage of Oxygen SaturationStandard Deviation 8.2
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 19, 22)94.2 Percentage of Oxygen SaturationStandard Deviation 5.6
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=26, 26)92.0 Percentage of Oxygen SaturationStandard Deviation 6.2
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 18, 21)87.6 Percentage of Oxygen SaturationStandard Deviation 9.1
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 28)92.4 Percentage of Oxygen SaturationStandard Deviation 6.3
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 24)94.1 Percentage of Oxygen SaturationStandard Deviation 5.1
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 25, 28)87.2 Percentage of Oxygen SaturationStandard Deviation 12.8
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 21)94.8 Percentage of Oxygen SaturationStandard Deviation 3.9
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)92.7 Percentage of Oxygen SaturationStandard Deviation 7.1
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 18, 23)88.1 Percentage of Oxygen SaturationStandard Deviation 9.8
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 23, 25)93.2 Percentage of Oxygen SaturationStandard Deviation 6.1
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 21)93.4 Percentage of Oxygen SaturationStandard Deviation 7.4
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 23, 24)87.9 Percentage of Oxygen SaturationStandard Deviation 11.9
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 19)93.3 Percentage of Oxygen SaturationStandard Deviation 8
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 23)93.1 Percentage of Oxygen SaturationStandard Deviation 7.8
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 20, 21)89.3 Percentage of Oxygen SaturationStandard Deviation 8.4
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 25)93.9 Percentage of Oxygen SaturationStandard Deviation 5.6
PlaceboBorg Score-Oxygen Saturation(SaO2) During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 22)93.7 Percentage of Oxygen SaturationStandard Deviation 5
Secondary

Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time Periods

Six Minute Walk test was carried out along a course, such as a hospital corridor, measuring at least 20 meters delineated by markers. During the walk the patient was connected to a portable pulse oximeter via a finger probe. Patients were instructed to walk at a comfortable speed as far as they could manage in six minutes, resting whenever they needed to. Systolic blood pressure (mmHg) were recorded before the test at resting, at the end of the test and two minutes after the end of the test

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 26, 28)111.3 mmHgStandard Deviation 14.2
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 21, 26)119.9 mmHgStandard Deviation 19.3
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=25, 27)120.0 mmHgStandard Deviation 18.3
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 27)111.4 mmHgStandard Deviation 9.6
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 22, 22)126.5 mmHgStandard Deviation 17.3
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)119.6 mmHgStandard Deviation 12.6
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 22, 24)108.9 mmHgStandard Deviation 12.3
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 19, 20)124.6 mmHgStandard Deviation 16.1
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 24)115.2 mmHgStandard Deviation 13.6
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 23)106.5 mmHgStandard Deviation 11.5
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 17, 19)122.2 mmHgStandard Deviation 17
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 20, 22)115.9 mmHgStandard Deviation 14.2
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 22)106.7 mmHgStandard Deviation 9.7
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 15,18)117.2 mmHgStandard Deviation 12.3
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 22)114.6 mmHgStandard Deviation 13.8
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 20)106.5 mmHgStandard Deviation 7
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 16,17)122.4 mmHgStandard Deviation 13.3
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 20)115.5 mmHgStandard Deviation 14
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 21)110.6 mmHgStandard Deviation 15.6
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 16, 17)126.9 mmHgStandard Deviation 23.6
STI571Borg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 19)118.2 mmHgStandard Deviation 18.6
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: End of Test (n= 17, 19)118.8 mmHgStandard Deviation 22.9
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: Resting (n= 26, 28)104.6 mmHgStandard Deviation 13.2
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: Resting (n= 20, 21)108.2 mmHgStandard Deviation 15.7
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: End of Test (n= 21, 26)118.3 mmHgStandard Deviation 18
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: 2 minutes after end of test (n= 20, 22)115.9 mmHgStandard Deviation 14.9
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsBaseline: 2 minutes after end of test (n=25, 27)110.4 mmHgStandard Deviation 13.6
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: End of Test (n= 16,17)119.9 mmHgStandard Deviation 19.3
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: Resting (n= 25, 27)106.0 mmHgStandard Deviation 12.3
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: Resting (n= 19, 22)105.7 mmHgStandard Deviation 12.5
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: End of Test (n= 22, 22)122.3 mmHgStandard Deviation 18.6
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: 2 minutes after end of test (n= 20, 19)111.1 mmHgStandard Deviation 10.6
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsDay 32: 2 minutes after end of test (n= 25, 26)113.8 mmHgStandard Deviation 14.9
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: End of Test (n= 15,18)119.8 mmHgStandard Deviation 13.5
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: Resting (n= 22, 24)107.3 mmHgStandard Deviation 13.5
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: 2 minutes after end of test (n= 19, 20)115.1 mmHgStandard Deviation 15.1
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: End of Test (n= 19, 20)119.9 mmHgStandard Deviation 17.1
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 16: 2 minutes after end of test (n= 19, 22)112.6 mmHgStandard Deviation 15.8
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 8: 2 minutes after end of test (n= 23, 24)114.5 mmHgStandard Deviation 13.7
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 24: End of Test (n= 16, 17)116.8 mmHgStandard Deviation 14.9
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 12: Resting (n= 22, 23)107.7 mmHgStandard Deviation 13.8
PlaceboBorg Score-Systolic Blood Pressure During the Six Minutes Walk Test at Different Time PeriodsWeek 20: Resting (n= 19, 20)109.1 mmHgStandard Deviation 12.1
Secondary

Mean Cardiac Output (CO) at Baseline and Study Completion

The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Cardiac Output (CO). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionBaseline breathing ambient air (n=27,28)4.20 L/minStandard Deviation 1.33
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=19,20)4.02 L/minStandard Deviation 1.32
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,18)3.98 L/minStandard Deviation 1.16
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,14)4.20 L/minStandard Deviation 1.16
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,19)3.87 L/minStandard Deviation 1.03
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)4.90 L/minStandard Deviation 1.21
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=10,13)4.80 L/minStandard Deviation 1.26
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)4.79 L/minStandard Deviation 1.31
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)4.63 L/minStandard Deviation 1.21
STI571Mean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)4.48 L/minStandard Deviation 1.21
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)4.62 L/minStandard Deviation 2.26
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionBaseline breathing ambient air (n=27,28)4.09 L/minStandard Deviation 1.44
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)4.35 L/minStandard Deviation 1.57
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=19,20)4.22 L/minStandard Deviation 1.64
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)4.46 L/minStandard Deviation 1.98
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,18)4.43 L/minStandard Deviation 1.8
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=10,13)4.67 L/minStandard Deviation 2.27
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,14)4.71 L/minStandard Deviation 1.95
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)4.65 L/minStandard Deviation 1.99
PlaceboMean Cardiac Output (CO) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,19)4.47 L/minStandard Deviation 2.15
Secondary

Mean Heart Rate (HR) at Baseline and Study Completion

The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Heart Rate (HR). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Mean Heart Rate (HR) at Baseline and Study CompletionBaseline breathing ambient air (n=27,28)77.3 beats per minute (bpm)Standard Deviation 7.5
STI571Mean Heart Rate (HR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,19)75.9 beats per minute (bpm)Standard Deviation 12.9
STI571Mean Heart Rate (HR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,17)75.2 beats per minute (bpm)Standard Deviation 13.6
STI571Mean Heart Rate (HR) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,15)73.2 beats per minute (bpm)Standard Deviation 10.2
STI571Mean Heart Rate (HR) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,19)76.2 beats per minute (bpm)Standard Deviation 9
STI571Mean Heart Rate (HR) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)76.6 beats per minute (bpm)Standard Deviation 8.6
STI571Mean Heart Rate (HR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,13)76.3 beats per minute (bpm)Standard Deviation 10.1
STI571Mean Heart Rate (HR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=8,11)76.6 beats per minute (bpm)Standard Deviation 10.3
STI571Mean Heart Rate (HR) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=9,12)75.7 beats per minute (bpm)Standard Deviation 10.2
STI571Mean Heart Rate (HR) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)73.2 beats per minute (bpm)Standard Deviation 8.3
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=8,11)82.8 beats per minute (bpm)Standard Deviation 16.7
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionBaseline breathing ambient air (n=27,28)84.9 beats per minute (bpm)Standard Deviation 13
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)83.0 beats per minute (bpm)Standard Deviation 12.8
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,19)84.4 beats per minute (bpm)Standard Deviation 15.5
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)82.9 beats per minute (bpm)Standard Deviation 10.5
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,17)83.3 beats per minute (bpm)Standard Deviation 13.2
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,13)82.5 beats per minute (bpm)Standard Deviation 15.3
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,15)84.3 beats per minute (bpm)Standard Deviation 13.9
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=9,12)79.3 beats per minute (bpm)Standard Deviation 10.4
PlaceboMean Heart Rate (HR) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,19)85.1 beats per minute (bpm)Standard Deviation 13.8
Secondary

Mean Pulmonary Artery Pressure (PAP) at Baseline and Study Completion

The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including right Pulmonary Arterial Pressure (PAP). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline breathing ambient air (n=27,28)61.7 mmHgStandard Deviation 15.6
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,20)61.6 mmHgStandard Deviation 18.7
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,18)58.1 mmHgStandard Deviation 16.7
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=20,14)60.9 mmHgStandard Deviation 16.2
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=19,19)60.3 mmHgStandard Deviation 16
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)52.5 mmHgStandard Deviation 11.4
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=10,13)50.9 mmHgStandard Deviation 17.5
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)46.2 mmHgStandard Deviation 18.1
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)47.0 mmHgStandard Deviation 15.8
STI571Mean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)48.1 mmHgStandard Deviation 13.7
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)53.9 mmHgStandard Deviation 14.1
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline breathing ambient air (n=27,28)59.2 mmHgStandard Deviation 11.6
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)55.5 mmHgStandard Deviation 11.6
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,20)55.7 mmHgStandard Deviation 12
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)57.2 mmHgStandard Deviation 12.4
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,18)53.3 mmHgStandard Deviation 11.5
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=10,13)55.1 mmHgStandard Deviation 13.9
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=20,14)56.9 mmHgStandard Deviation 10.8
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)57.5 mmHgStandard Deviation 12.8
PlaceboMean Pulmonary Artery Pressure (PAP) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=19,19)56.5 mmHgStandard Deviation 10.3
Secondary

Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study Completion

The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Pulmonary Arterial Wedge Pressure (PAWP). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline breathing ambient air (n=26,28)9.0 mmHgStandard Deviation 2.6
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,17)9.5 mmHgStandard Deviation 2
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,16)9.4 mmHgStandard Deviation 2.2
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,12)9.5 mmHgStandard Deviation 2.7
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,17)9.6 mmHgStandard Deviation 2.4
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 breathing ambient air (n=19,22)8.4 mmHgStandard Deviation 3.2
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,13)7.9 mmHgStandard Deviation 3.1
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)7.0 mmHgStandard Deviation 3.4
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)7.1 mmHgStandard Deviation 3.1
STI571Mean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)6.7 mmHgStandard Deviation 2.8
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)10.0 mmHgStandard Deviation 3.7
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline breathing ambient air (n=26,28)7.6 mmHgStandard Deviation 2.3
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 breathing ambient air (n=19,22)8.6 mmHgStandard Deviation 2.8
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,17)7.7 mmHgStandard Deviation 2.9
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)10.4 mmHgStandard Deviation 3.6
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,16)7.8 mmHgStandard Deviation 3.4
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,13)10.2 mmHgStandard Deviation 3.7
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,12)7.8 mmHgStandard Deviation 2.9
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)10.3 mmHgStandard Deviation 3.3
PlaceboMean Pulmonary Artery Wedge Pressure (PAWP) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,17)8.1 mmHgStandard Deviation 2.6
Secondary

Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study Completion

The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Pulmonary Vascular Resistance (PVR). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration. PVR calculated according to the equation:PVR = (PAP - PCWP)/CO

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline breathing ambient air (n=27,27)1124.4 dyn*s/cm^5Standard Deviation 460
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=19,17)1180.9 dyn*s/cm^5Standard Deviation 520.8
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,16)1064.6 dyn*s/cm^5Standard Deviation 458.9
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,11)1131.5 dyn*s/cm^5Standard Deviation 491.2
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,16)1181.9 dyn*s/cm^5Standard Deviation 498.7
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 breathing ambient air (n=19,21)729.9 dyn*s/cm^5Standard Deviation 230.1
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,14)706.9 dyn*s/cm^5Standard Deviation 285.5
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)687.4 dyn*s/cm^5Standard Deviation 276.3
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)717.2 dyn*s/cm^5Standard Deviation 271.6
STI571Mean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)776.1 dyn*s/cm^5Standard Deviation 286.8
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)1033.6 dyn*s/cm^5Standard Deviation 546.2
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline breathing ambient air (n=27,27)1118.3 dyn*s/cm^5Standard Deviation 486.7
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 breathing ambient air (n=19,21)1017.0 dyn*s/cm^5Standard Deviation 369.1
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=19,17)1067.9 dyn*s/cm^5Standard Deviation 509.1
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)1042.5 dyn*s/cm^5Standard Deviation 388.4
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,16)982.8 dyn*s/cm^5Standard Deviation 483.9
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,14)1000.6 dyn*s/cm^5Standard Deviation 501.5
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=19,11)1160.4 dyn*s/cm^5Standard Deviation 510
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=10,12)987.8 dyn*s/cm^5Standard Deviation 370.4
PlaceboMean Pulmonary Vascular Resistance (PVR) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=18,16)1132.9 dyn*s/cm^5Standard Deviation 461
Secondary

Mean Systemic Vascular Resistance (SVR) at Baseline and Study Completion

The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Systemic Vascular Resistance (SVR). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration. SVR was calculated according to the equation: SVR = (Paorta - Pright atrium)/CO

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline breathing ambient air (n=26,26)1674.4 dyn*s/cm^5Standard Deviation 761.2
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=18,15)1778.2 dyn*s/cm^5Standard Deviation 709.5
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=16,14)1807.3 dyn*s/cm^5Standard Deviation 615.1
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=18,11)1609.2 dyn*s/cm^5Standard Deviation 593.4
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=17,15)1976.3 dyn*s/cm^5Standard Deviation 877.5
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 breathing ambient air (n=18,21)1427.2 dyn*s/cm^5Standard Deviation 446.8
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,13)1344.2 dyn*s/cm^5Standard Deviation 474.8
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)1367.9 dyn*s/cm^5Standard Deviation 601.7
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=9,12)1419.7 dyn*s/cm^5Standard Deviation 566.6
STI571Mean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)1431.7 dyn*s/cm^5Standard Deviation 524.4
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)1592.5 dyn*s/cm^5Standard Deviation 389
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline breathing ambient air (n=26,26)1764.8 dyn*s/cm^5Standard Deviation 481.9
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 breathing ambient air (n=18,21)1667.9 dyn*s/cm^5Standard Deviation 357.8
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=18,15)1769.7 dyn*s/cm^5Standard Deviation 457
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)1629.3 dyn*s/cm^5Standard Deviation 355.6
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=16,14)1664.7 dyn*s/cm^5Standard Deviation 472
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=9,13)1579.3 dyn*s/cm^5Standard Deviation 386.8
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=18,11)1666.6 dyn*s/cm^5Standard Deviation 488.6
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=9,12)1503.9 dyn*s/cm^5Standard Deviation 305.3
PlaceboMean Systemic Vascular Resistance (SVR) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=17,15)1748.4 dyn*s/cm^5Standard Deviation 499.3
Secondary

Mean Systolic Arterial Pressure (SAP) at Baseline and Study Completion

The right heart catheter assessment was performed to assess several prognostic hemodynamic variables in pulmonary hypertension, including Systolic Arterial Pressure (SAP). Were assessed when the patient was in a stable hemodynamic rest state (as demonstrated by three consecutive Mean PAP and CO measurements within 10% of each other). PAP was assessed when the patient was breathing ambient air, every 2 minutes whilst breathing Nitric Oxide(NO) (1st and 2nd), 5 min after the end of NO administration, and 15 mins after the end of NO administration.

Time frame: Baseline, and Study completion (Week 24)

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline breathing ambient air (n=26,28)110.3 mmHgStandard Deviation 19.5
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,19)108.3 mmHgStandard Deviation 18.9
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,17)109.9 mmHgStandard Deviation 19.1
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=21,15)106.0 mmHgStandard Deviation 17.7
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=19,19)109.5 mmHgStandard Deviation 20.3
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)108.0 mmHgStandard Deviation 19.8
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=10,13)103.9 mmHgStandard Deviation 17.5
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)104.8 mmHgStandard Deviation 18.3
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=9,12)103.4 mmHgStandard Deviation 18.7
STI571Mean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)103.8 mmHgStandard Deviation 21.4
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (2nd) (n=9,11)103.6 mmHgStandard Deviation 19.2
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline breathing ambient air (n=26,28)108.2 mmHgStandard Deviation 15.4
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 breathing ambient air (n=20,22)106.9 mmHgStandard Deviation 18.8
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (1st) (n=20,19)106.9 mmHgStandard Deviation 18
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 15 mins after NO administration (n=10,14)107.3 mmHgStandard Deviation 18.3
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline every 2 mins breathing NO (2nd) (n=17,17)105.4 mmHgStandard Deviation 18.1
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 every 2 mins breathing NO (1st) (n=10,13)102.9 mmHgStandard Deviation 20.4
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline 5 mins after NO administration (n=21,15)107.1 mmHgStandard Deviation 18.6
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionWeek 24 5 mins after NO administration (n=9,12)104.0 mmHgStandard Deviation 20
PlaceboMean Systolic Arterial Pressure (SAP) at Baseline and Study CompletionBaseline 15 mins after NO administration(n=19,19)106.9 mmHgStandard Deviation 16.7
Secondary

Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical Activity

PAH assessed according to the WHO classification: Class I Patients with PAH but without resulting limitation of physical activity. Ordinary physical activity does not cause undue dyspnea or fatigue, chest pain or near syncope. Class II Patients with PAH resulting in slight limitation of physical activity. They are comfortable at rest. Ordinary physical activity causes undue dyspnea or fatigue, chest pain or near syncope. Class III Patients with PAH resulting in marked limitation of physical activity. They are comfortable at rest. Less than ordinary activity causes undue dyspnea or fatigue, chest pain or near syncope. Class IV Patients with PAH with inability to carry out any physical activity without symptoms. These patients manifest signs of right heart failure. Dyspnea and/or fatigue may even be present at rest. Discomfort is increased by any physical activity.

Time frame: Baseline, Day 32, Week 8, Week 12, Week 16, Week 20 and Study completion

Population: The intention to treat population (ITT) will include all patients who received at least one dose of study medication.

ArmMeasureGroupValue (NUMBER)
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityBaseline: WHO Class IV (n=27,30)2 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityBaseline: WHO Class III (n=27,30)14 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityBaseline: WHO Class II (n=27,30)11 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityDay 32: WHO Class IV (n=27,30)3 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityDay 32: WHO Class III (n=27,30)11 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityDay 32: WHO Class II (n=27,30)13 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 8: WHO Class IV (n=24,27)3 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 8: WHO Class III (n=24,27)9 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 8: WHO Class II (n=24,27)12 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 12: WHO Class IV (n=23,27)0 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 12: WHO Class III (n=23,27)12 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 12: WHO Class II (n=23,27)11 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class IV (n=22,27)0 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class III (n=22,27)11 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class II (n=22,27)11 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class I (n=22,27)0 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class IV (n=19,24)0 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class III (n=19,24)10 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class II (n=19,24)8 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class I (n=19,24)1 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 24: WHO Class IV (n=21,25)1 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 24: WHO Class III (n=21,25)12 number of participants
STI571Number of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 24: WHO Class II (n=21,25)8 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 12: WHO Class II (n=23,27)9 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityBaseline: WHO Class IV (n=27,30)1 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class III (n=19,24)14 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityBaseline: WHO Class III (n=27,30)22 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class IV (n=22,27)1 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityBaseline: WHO Class II (n=27,30)7 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 24: WHO Class IV (n=21,25)2 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityDay 32: WHO Class IV (n=27,30)3 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class III (n=22,27)18 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityDay 32: WHO Class III (n=27,30)21 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class II (n=19,24)9 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityDay 32: WHO Class II (n=27,30)6 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class II (n=22,27)7 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 8: WHO Class IV (n=24,27)1 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 24: WHO Class II (n=21,25)10 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 8: WHO Class III (n=24,27)20 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 16: WHO Class I (n=22,27)1 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 8: WHO Class II (n=24,27)6 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class I (n=19,24)0 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 12: WHO Class IV (n=23,27)1 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 20: WHO Class IV (n=19,24)1 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 12: WHO Class III (n=23,27)17 number of participants
PlaceboNumber of Patients With Pulmonary Hypertension (PAH) Assessd by World Health Organization (WHO) Classification on Physical ActivityWeek 24: WHO Class III (n=21,25)13 number of participants

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026