Trial Outcomes & Findings for Open-label Extension of Oral Treprostinil in Subjects With PH Associated With HFpEF (NCT NCT03043651)

NCT ID: NCT03043651

Last Updated: 2020-10-22

Results Overview

The primary objective of this study was to evaluate the long-term safety of oral treprostinil in subjects with PH associated with HFpEF for subjects who completed Study TDE-HF-301. The number of subjects with adverse events during the study is reported as the primary outcome measure, which was the only outcome measurement reported for this Sponsor-terminated study.

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

48 participants

Primary outcome timeframe

Baseline through study completion, up to approximately 25 months

Results posted on

2020-10-22

Participant Flow

Participant milestones

Participant milestones
Measure
Oral Treprostinil
Sustained-release tablets for TID administration Oral Treprostinil: Sustained-release oral tablets for TID administration
Overall Study
STARTED
48
Overall Study
COMPLETED
0
Overall Study
NOT COMPLETED
48

Reasons for withdrawal

Reasons for withdrawal
Measure
Oral Treprostinil
Sustained-release tablets for TID administration Oral Treprostinil: Sustained-release oral tablets for TID administration
Overall Study
Death
1
Overall Study
Progressive Disease
2
Overall Study
Adverse Event
2
Overall Study
Withdrawal by Subject
4
Overall Study
Study Terminated by Sponsor
39

Baseline Characteristics

Open-label Extension of Oral Treprostinil in Subjects With PH Associated With HFpEF

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Oral Treprostinil
n=48 Participants
Sustained-release tablets for TID administration Oral Treprostinil: Sustained-release oral tablets for TID administration
Age, Continuous
76.0 years
n=5 Participants
Sex: Female, Male
Female
35 Participants
n=5 Participants
Sex: Female, Male
Male
13 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
47 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
5 Participants
n=5 Participants
Race (NIH/OMB)
White
43 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline through study completion, up to approximately 25 months

Population: Safety Population

The primary objective of this study was to evaluate the long-term safety of oral treprostinil in subjects with PH associated with HFpEF for subjects who completed Study TDE-HF-301. The number of subjects with adverse events during the study is reported as the primary outcome measure, which was the only outcome measurement reported for this Sponsor-terminated study.

Outcome measures

Outcome measures
Measure
Oral Treprostinil
n=48 Participants
Sustained-release tablets for TID administration Oral Treprostinil: Sustained-release oral tablets for TID administration
Long-term Safety of Oral Treprostinil in Subjects With PH Associated With HFpEF for Subjects Who Completed Study TDE-HF-301
47 Participants

Adverse Events

Oral Treprostinil

Serious events: 19 serious events
Other events: 47 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Oral Treprostinil
n=48 participants at risk
Sustained-release tablets for TID administration Oral Treprostinil: Sustained-release oral tablets for TID administration
Nervous system disorders
Cerebrovascular accident
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
General disorders
Chest pain
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Psychiatric disorders
Confusional state
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
General disorders
Death
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Diarrhoea
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Investigations
Electrocardiogram QT prolonged
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Endocarditis
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Metabolism and nutrition disorders
Fluid overload
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Gastrointestinal angiectasia
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Nervous system disorders
Headache
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Injury, poisoning and procedural complications
Hip fracture
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Metabolism and nutrition disorders
Hypervolaemia
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Metabolism and nutrition disorders
Hypochloraemia
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Melaena
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Nervous system disorders
Metabolic encephalopathy
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Blood and lymphatic system disorders
Normochromic normocytic anaemia
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Pneumonia mycoplasmal
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Pulmonary hypertension
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Sepsis
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Sinus bradycardia
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Sinus node dysfunction
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Nervous system disorders
Syncope
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Tachyarrhythmia
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Urinary tract infection
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Renal and urinary disorders
Acute kidney injury
8.3%
4/48 • Number of events 5 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Cardiac failure
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Acute respiratory failure
4.2%
2/48 • Number of events 2 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Cardiac failure acute
4.2%
2/48 • Number of events 2 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Cardiac failure congestive
4.2%
2/48 • Number of events 2 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Metabolism and nutrition disorders
Hypokalaemia
4.2%
2/48 • Number of events 2 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
4.2%
2/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Pneumonia
4.2%
2/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Atrial fibrillation
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Renal and urinary disorders
Azotaemia
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Cardio-respiratory arrest
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Cardiomyopathy
2.1%
1/48 • Number of events 1 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.

Other adverse events

Other adverse events
Measure
Oral Treprostinil
n=48 participants at risk
Sustained-release tablets for TID administration Oral Treprostinil: Sustained-release oral tablets for TID administration
Nervous system disorders
Headache
64.6%
31/48 • Number of events 35 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Diarrhoea
54.2%
26/48 • Number of events 28 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Nausea
35.4%
17/48 • Number of events 20 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
General disorders
Fatigue
31.2%
15/48 • Number of events 17 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Musculoskeletal and connective tissue disorders
Pain in extremity
27.1%
13/48 • Number of events 20 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Nervous system disorders
Dizziness
18.8%
9/48 • Number of events 10 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
18.8%
9/48 • Number of events 10 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
General disorders
Oedema peripheral
18.8%
9/48 • Number of events 9 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Musculoskeletal and connective tissue disorders
Back pain
16.7%
8/48 • Number of events 8 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Cough
16.7%
8/48 • Number of events 8 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Musculoskeletal and connective tissue disorders
Pain in jaw
14.6%
7/48 • Number of events 7 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Musculoskeletal and connective tissue disorders
Arthralgia
12.5%
6/48 • Number of events 8 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Dyspepsia
12.5%
6/48 • Number of events 6 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Renal and urinary disorders
Acute kidney injury
10.4%
5/48 • Number of events 7 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Investigations
Blood creatinine increased
10.4%
5/48 • Number of events 5 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
General disorders
Chest pain
10.4%
5/48 • Number of events 6 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Vascular disorders
Flushing
10.4%
5/48 • Number of events 5 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Musculoskeletal and connective tissue disorders
Muscle spasms
10.4%
5/48 • Number of events 5 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Pneumonia
10.4%
5/48 • Number of events 6 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Upper respiratory tract infection
10.4%
5/48 • Number of events 5 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Abdominal pain
8.3%
4/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Atrial fibrillation
8.3%
4/48 • Number of events 6 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Constipation
8.3%
4/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Metabolism and nutrition disorders
Decreased appetite
8.3%
4/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Vascular disorders
Hypotension
8.3%
4/48 • Number of events 5 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
General disorders
Oedema
8.3%
4/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Skin and subcutaneous tissue disorders
Rash
8.3%
4/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Sinusitis
8.3%
4/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Vomiting
8.3%
4/48 • Number of events 5 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Abdominal distension
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Blood and lymphatic system disorders
Anaemia
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Investigations
Blood alkaline phosphatase increased
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Cardiac failure
6.2%
3/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Gastrointestinal disorders
Flatulence
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Investigations
Gamma-glutamyltransferase increased
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Musculoskeletal and connective tissue disorders
Myalgia
6.2%
3/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Investigations
N-terminal prohormone brain natriuretic peptide increased
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Cardiac disorders
Palpitations
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Respiratory, thoracic and mediastinal disorders
Pleural effusion
6.2%
3/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Nervous system disorders
Presyncope
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Urinary tract infection
6.2%
3/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Ear and labyrinth disorders
Vertigo
6.2%
3/48 • Number of events 3 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.
Infections and infestations
Viral upper respiratory tract infection
6.2%
3/48 • Number of events 4 • The study duration was 25 months overall. The study was discontinued by the Sponsor on 14 October 2019 due to slow enrollment in the parent study, TDE-HF-301.

Additional Information

Louis Holdstock

United Therapeutics

Phone: 919-425-8866

Results disclosure agreements

  • Principal investigator is a sponsor employee Institution and/or Principal Investigator agree not to publish or publicly present any interim results of the study without the prior written consent of the Sponsor, not to be unreasonably withheld or delayed. Institution and/or Principal Investigator further agree to provide Sponsor with drafts of any such publication or presentation for review and approval no less than 30 days prior to submission for publication or the date of public presentation.
  • Publication restrictions are in place

Restriction type: OTHER