Trial Outcomes & Findings for Study Looking at Combination Therapy (Sitaxsentan+Sildenafil) Vs. Monotherapy (Sitaxsentan Alone) SR-PAAS -Sitaxsentan Efficacy And Safety Trial With A Randomized Prospective Assessment Of Adding Sildenafil (NCT NCT00796666)

NCT ID: NCT00796666

Last Updated: 2015-03-24

Results Overview

Clinical worsening defined as time between first dose of study drug and occurrence of death; or heart-lung/lung transplant; or hospitalization for worsening pulmonary atrial hypertension (PAH); or atrial septostomy; or withdrawal due to addition of chronic medications for treatment of worsening PAH: prostacyclin/prostacyclin analogues/phosphodiesterase-5inhibitors/alternative endothelin receptor antagonists/intravenous inotropes; or increase of calcium channel blockers or oxygen. TTCW measured as duration between study's first dose date in and date when first clinical worsening event occurs.

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

131 participants

Primary outcome timeframe

Baseline, Weeks 12, 24 or Early Termination (ET)

Results posted on

2015-03-24

Participant Flow

Participants who successfully completed treatment in study B1321001 (NCT00795639).

Participant milestones

Participant milestones
Measure
Sitaxsentan and Placebo
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Overall Study
STARTED
67
64
Overall Study
Treated
66
64
Overall Study
Randomized and Not Treated
1
0
Overall Study
COMPLETED
0
0
Overall Study
NOT COMPLETED
67
64

Reasons for withdrawal

Reasons for withdrawal
Measure
Sitaxsentan and Placebo
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Overall Study
Death
2
4
Overall Study
Withdrawal by Subject
2
0
Overall Study
Adverse Event
7
5
Overall Study
Protocol Violation
1
0
Overall Study
Other
1
0
Overall Study
Terminated by sponsor
53
55
Overall Study
Randomized and not treated
1
0

Baseline Characteristics

Study Looking at Combination Therapy (Sitaxsentan+Sildenafil) Vs. Monotherapy (Sitaxsentan Alone) SR-PAAS -Sitaxsentan Efficacy And Safety Trial With A Randomized Prospective Assessment Of Adding Sildenafil

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Sitaxsentan and Placebo
n=67 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=64 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Total
n=131 Participants
Total of all reporting groups
Age, Customized
less than 18 years
1 participants
n=5 Participants
0 participants
n=7 Participants
1 participants
n=5 Participants
Age, Customized
18-44 years
38 participants
n=5 Participants
41 participants
n=7 Participants
79 participants
n=5 Participants
Age, Customized
45-64 years
20 participants
n=5 Participants
18 participants
n=7 Participants
38 participants
n=5 Participants
Age, Customized
>= 65 years
8 participants
n=5 Participants
5 participants
n=7 Participants
13 participants
n=5 Participants
Sex: Female, Male
Female
55 Participants
n=5 Participants
49 Participants
n=7 Participants
104 Participants
n=5 Participants
Sex: Female, Male
Male
12 Participants
n=5 Participants
15 Participants
n=7 Participants
27 Participants
n=5 Participants
World Health Organization (WHO) Functional Classification
Functional Class I
0 number
n=5 Participants
0 number
n=7 Participants
0 number
n=5 Participants
World Health Organization (WHO) Functional Classification
Functional Class II
12 number
n=5 Participants
11 number
n=7 Participants
23 number
n=5 Participants
World Health Organization (WHO) Functional Classification
Functional Class III
55 number
n=5 Participants
52 number
n=7 Participants
107 number
n=5 Participants
World Health Organization (WHO) Functional Classification
Functional Class IV
0 number
n=5 Participants
1 number
n=7 Participants
1 number
n=5 Participants

PRIMARY outcome

Timeframe: Baseline, Weeks 12, 24 or Early Termination (ET)

Population: Intent-to-Treat population (ITT): all participants who were randomized

Clinical worsening defined as time between first dose of study drug and occurrence of death; or heart-lung/lung transplant; or hospitalization for worsening pulmonary atrial hypertension (PAH); or atrial septostomy; or withdrawal due to addition of chronic medications for treatment of worsening PAH: prostacyclin/prostacyclin analogues/phosphodiesterase-5inhibitors/alternative endothelin receptor antagonists/intravenous inotropes; or increase of calcium channel blockers or oxygen. TTCW measured as duration between study's first dose date in and date when first clinical worsening event occurs.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=67 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=64 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Time to Clinical Worsening (TTCW)
NA Days
Interval 123.0 to 356.0
Not applicable (NA). Median TTCW not calculated unless at least 50 percent of participants in each treatment group had a clinical worsening event.
NA Days
Interval 119.0 to 409.0
Not applicable (NA). Median TTCW not calculated unless at least 50 percent of participants in each treatment group had a clinical worsening event.

SECONDARY outcome

Timeframe: Baseline to Weeks 12 and 24

Population: ITT; N=number of participants analyzed; Missing values at Weeks 12 and 24 imputed with the last non-missing 6MWD based on the last observation carried forward (LOCF) method

6 MWD was the distance that a participant could walk in 6 minutes. Participants were asked to perform the test at a pace that was comfortable to them, with as many breaks as they needed. Continuous pulse oximetry was conducted during the test for safety. Change from baseline = score at Week x - score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=64 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change From Baseline in the Total Distance Walked During 6 Minute Walk Distance (6MWD)
Baseline
350.9 meters (m)
Standard Deviation 74.47
354.7 meters (m)
Standard Deviation 79.88
Change From Baseline in the Total Distance Walked During 6 Minute Walk Distance (6MWD)
Change at Week 12
-6.9 meters (m)
Standard Deviation 71.00
23.2 meters (m)
Standard Deviation 56.49
Change From Baseline in the Total Distance Walked During 6 Minute Walk Distance (6MWD)
Change at Week 24
-5.4 meters (m)
Standard Deviation 62.74
17.5 meters (m)
Standard Deviation 66.84

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT

WHO PAH Functional Classification of physical activity limitations: I (no limitation), II (slight limitation), III (marked limitations, comfortable at rest) and IV (unable to carry out any physical activity without symptoms). The change from baseline in WHO class was classified as Improved (decrease in functional class), No Change (functional class stayed the same), and Worsened (functional class increased). The change from baseline in WHO functional class at Week X was summarized with frequency count and percentage in each category based on imputed data for missing values at Week X.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=67 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=64 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change From Baseline in World Health Organization (WHO) Functional Class in Participants With PAH at Weeks 12, 24, 48
Week 12 Improvement
14 participant
14 participant
Change From Baseline in World Health Organization (WHO) Functional Class in Participants With PAH at Weeks 12, 24, 48
Week 12 No Change
52 participant
49 participant
Change From Baseline in World Health Organization (WHO) Functional Class in Participants With PAH at Weeks 12, 24, 48
Week 12 Deterioration
1 participant
1 participant
Change From Baseline in World Health Organization (WHO) Functional Class in Participants With PAH at Weeks 12, 24, 48
Week 24 Improvement
13 participant
16 participant
Change From Baseline in World Health Organization (WHO) Functional Class in Participants With PAH at Weeks 12, 24, 48
Week 24 No Change
53 participant
47 participant
Change From Baseline in World Health Organization (WHO) Functional Class in Participants With PAH at Weeks 12, 24, 48
Week 24 Deterioration
1 participant
1 participant

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 and ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Physical Functioning score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=63 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Physical Functioning Domain
Baseline
37.7 units on a scale
Standard Deviation 8.95
37.0 units on a scale
Standard Deviation 9.95
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Physical Functioning Domain
Change at Week 12
-0.3 units on a scale
Standard Deviation 6.97
2.9 units on a scale
Standard Deviation 6.26
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Physical Functioning Domain
Change at Week 24
0.7 units on a scale
Standard Deviation 6.78
3.7 units on a scale
Standard Deviation 8.16

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Role Limitations Due to Physical Health Problems score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Role Limitations Due to Physical Health Problems Domain
Baseline
37.9 units on a scale
Standard Deviation 10.21
36.8 units on a scale
Standard Deviation 9.85
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Role Limitations Due to Physical Health Problems Domain
Change at Week 12
-2.2 units on a scale
Standard Deviation 9.72
1.5 units on a scale
Standard Deviation 7.08
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Role Limitations Due to Physical Health Problems Domain
Change at Week 24
0.7 units on a scale
Standard Deviation 7.63
2.6 units on a scale
Standard Deviation 7.87

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Bodily Pain score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Bodily Pain Domain
Baseline
46.9 units on a scale
Standard Deviation 10.19
45.1 units on a scale
Standard Deviation 10.37
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Bodily Pain Domain
Change at Week 12
-0.7 units on a scale
Standard Deviation 7.96
3.1 units on a scale
Standard Deviation 9.91
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Bodily Pain Domain
Change at Week 24
-1.6 units on a scale
Standard Deviation 8.04
0.8 units on a scale
Standard Deviation 9.86

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = General Health score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=63 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - General Health Domain
Baseline
38.8 units on a scale
Standard Deviation 9.69
38.9 units on a scale
Standard Deviation 9.35
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - General Health Domain
Change at Week 12
-0.5 units on a scale
Standard Deviation 6.73
2.1 units on a scale
Standard Deviation 7.86
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - General Health Domain
Change at Week 24
0.5 units on a scale
Standard Deviation 7.68
2.8 units on a scale
Standard Deviation 9.10

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Vitality score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Vitality Domain
Baseline
46.6 units on a scale
Standard Deviation 9.23
45.7 units on a scale
Standard Deviation 10.47
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Vitality Domain
Change at Week 12
-0.7 units on a scale
Standard Deviation 8.22
3.2 units on a scale
Standard Deviation 8.74
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Vitality Domain
Change at Week 24
1.4 units on a scale
Standard Deviation 7.84
2.9 units on a scale
Standard Deviation 9.80

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Social Functioning score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Social Functioning Domain
Baseline
41.8 units on a scale
Standard Deviation 11.15
41.5 units on a scale
Standard Deviation 10.19
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Social Functioning Domain
Change at Week 12
0.4 units on a scale
Standard Deviation 9.72
2.5 units on a scale
Standard Deviation 8.48
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Social Functioning Domain
Change at Week 24
0.9 units on a scale
Standard Deviation 10.56
0.7 units on a scale
Standard Deviation 9.61

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Role Limitations Due to Emotional Problems score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Role Limitation Due to Emotional Problems Domain
Baseline
40.1 units on a scale
Standard Deviation 12.30
37.7 units on a scale
Standard Deviation 11.28
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Role Limitation Due to Emotional Problems Domain
Change at Week 12
-1.9 units on a scale
Standard Deviation 10.91
0.9 units on a scale
Standard Deviation 8.84
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Role Limitation Due to Emotional Problems Domain
Change at Week 24
-0.5 units on a scale
Standard Deviation 9.72
-1.2 units on a scale
Standard Deviation 10.09

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Mental Health score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Mental Health Domain
Baseline
45.0 units on a scale
Standard Deviation 11.60
44.5 units on a scale
Standard Deviation 11.50
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Mental Health Domain
Change at Week 12
0.2 units on a scale
Standard Deviation 9.65
2.5 units on a scale
Standard Deviation 10.92
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Mental Health Domain
Change at Week 24
1.6 units on a scale
Standard Deviation 9.26
1.3 units on a scale
Standard Deviation 11.60

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Composite Mental Health score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Composite Mental Health
Baseline
45.1 units on a scale
Standard Deviation 11.98
43.9 units on a scale
Standard Deviation 11.29
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Composite Mental Health
Change at Week 12
-0.4 units on a scale
Standard Deviation 8.67
1.6 units on a scale
Standard Deviation 9.36
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Composite Mental Health
Change at Week 24
0.3 units on a scale
Standard Deviation 8.45
-0.6 units on a scale
Standard Deviation 10.16

SECONDARY outcome

Timeframe: Baseline, Weeks 12, 24 or ET

Population: ITT; N=number of participants analyzed

SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Change from baseline = Composite Physical Health score at Week x minus score at baseline.

Outcome measures

Outcome measures
Measure
Sitaxsentan and Placebo
n=66 Participants
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=62 Participants
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Composite Physical Health
Baseline
39.7 units on a scale
Standard Deviation 8.01
39.1 units on a scale
Standard Deviation 7.97
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Composite Physical Health
Change at Week 12
-0.1 units on a scale
Standard Deviation 6.79
2.4 units on a scale
Standard Deviation 5.54
Change in 36-Item Short-Form Health Survey (SF-36) From Baseline at Weeks 12, 24 and 48 - Composite Physical Health
Change at Week 24
-0.1 units on a scale
Standard Deviation 6.49
3.1 units on a scale
Standard Deviation 6.34

Adverse Events

Sitaxsentan and Placebo

Serious events: 14 serious events
Other events: 26 other events
Deaths: 0 deaths

Sitaxsentan and Sildenafil

Serious events: 15 serious events
Other events: 28 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Sitaxsentan and Placebo
n=66 participants at risk
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=64 participants at risk
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Blood and lymphatic system disorders
Anaemia
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Blood and lymphatic system disorders
Haemorrhagic anaemia
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Atrial tachycardia
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Bradycardia
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Cardiac arrest
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Cardiac asthma
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Cardiac failure
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Cardiac failure congestive
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Cardio-respiratory arrest
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Pericardial effusion
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Right ventricular failure
4.5%
3/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Torsade de pointes
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Ventricular fibrillation
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Endocrine disorders
Adrenocortical insufficiency acute
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Gastritis
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Gastroduodenal ulcer
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Chest pain
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Oedema peripheral
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Pyrexia
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Hepatobiliary disorders
Acute hepatic failure
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Hepatobiliary disorders
Hepatic function abnormal
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Hepatobiliary disorders
Liver disorder
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Immune system disorders
Hypersensitivity
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Lower respiratory tract infection
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Malaria
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Pneumonia
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Postoperative abscess
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Sepsis
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Septic shock
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Upper respiratory tract infection
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Viral infection
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Injury, poisoning and procedural complications
Drug exposure during pregnancy
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Injury, poisoning and procedural complications
Incision site haematoma
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Investigations
Hepatic enzyme increased
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Investigations
Liver function test abnormal
4.5%
3/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
4.7%
3/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Systemic sclerosis
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Breast cancer
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Dizziness
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Hepatic encephalopathy
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Syncope
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Psychiatric disorders
Insomnia
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Renal and urinary disorders
Renal colic
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Acute respiratory failure
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Haemoptysis
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Pulmonary arterial hypertension
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Pulmonary hypertension
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.

Other adverse events

Other adverse events
Measure
Sitaxsentan and Placebo
n=66 participants at risk
Sitaxsentan sodium (100 milligrams \[mg\]) orally once daily and placebo orally three times a day (TID)
Sitaxsentan and Sildenafil
n=64 participants at risk
Sitaxsentan sodium (100 mg) orally once daily and sildenafil citrate (20 mg) TID
Blood and lymphatic system disorders
Anaemia
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Cardiac disorders
Cardiac failure congestive
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Abdominal pain
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
4.7%
3/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Abdominal pain upper
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Gastrointestinal disorders
Haemorrhoids
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Asthenia
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Chest pain
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Fatigue
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Oedema peripheral
9.1%
6/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
7.8%
5/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Pain
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
General disorders
Pyrexia
4.5%
3/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Bronchitis
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Influenza
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Nasopharyngitis
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Infections and infestations
Upper respiratory tract infection
9.1%
6/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Injury, poisoning and procedural complications
Fall
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Investigations
Alanine aminotransferase increased
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
6.2%
4/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Investigations
Aspartate aminotransferase increased
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Investigations
Blood creatinine increased
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Investigations
Blood pressure decreased
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Investigations
Venous pressure jugular increased
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Metabolism and nutrition disorders
Decreased appetite
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Metabolism and nutrition disorders
Hypokalaemia
4.5%
3/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Arthralgia
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Back pain
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
4.7%
3/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Myalgia
6.1%
4/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
0.00%
0/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Musculoskeletal and connective tissue disorders
Pain in extremity
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
6.2%
4/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Dizziness
9.1%
6/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Headache
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
10.9%
7/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Nervous system disorders
Syncope
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Psychiatric disorders
Anxiety
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Psychiatric disorders
Insomnia
0.00%
0/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
6.2%
4/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Cough
6.1%
4/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
4.7%
3/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
6.1%
4/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Dyspnoea exertional
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
7.8%
5/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Respiratory, thoracic and mediastinal disorders
Epistaxis
1.5%
1/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Skin and subcutaneous tissue disorders
Pruritus
4.5%
3/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
3.1%
2/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Vascular disorders
Hypotension
3.0%
2/66
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
1.6%
1/64
The same event may appear as both an adverse event (AE) and a serious adverse event (SAE). However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER