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Safety Study of the Switch From Oral Selexipag to Intravenous Selexipag in Subjects With Stable Pulmonary Arterial Hypertension

A Multicenter, Open-label, Single-sequence Cross-over Study to Assess Safety, Tolerability, and Pharmacokinetics of Intravenous Selexipag in Subjects With Stable Pulmonary Arterial Hypertension Switching From an Oral Stable Dose of Selexipag

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03187678
Enrollment
20
Registered
2017-06-15
Start date
2017-12-04
Completion date
2018-05-29
Last updated
2025-06-29

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

Conditions

Pulmonary Arterial Hypertension

Keywords

switch, intravenous, selexipag

Brief summary

The development of selexipag for intravenous administration will be useful to avoid treatment interruptions in patients with pulmonary arterial hypertension (PAH) already treated with selexipag administered orally as tablets (Uptravi®). The target population for intravenous selexipag includes those PAH patients who are hospitalized and are unable to swallow tablets of Uptravi. The primary objective of this study is to assess whether it is safe for patients with PAH to temporarily change from selexipag tablets (Uptravi®) to selexipag given directly into a vein (intravenous selexipag), and then switching back to the initial oral dose of selexipag.

Detailed description

After screening (Visit 1), each subject will participate in the following consecutive treatment periods: Period 1(treatment with oral selexipag at Visit 2/Day 1), Period 2 (treatment with intravenous selexipag at Visit 2/ Day 2 and Day 3), Period 3 (treatment with oral selexipag starting in the evening of Visit 2/Day 3 and ending 7 to 11 days later at Visit 3). Then a safety follow-up period is planned up to end of study visit (EOS), which occurs between Day 33 and Day 40.

Interventions

DRUGi.v. selexipag

Selexipag for intravenous administration, twice daily as an infusion over 87 min. The dose is individualized for each subject to correspond to his/her current oral dose of Uptravi®.

DRUGoral selexipag (Uptravi)

Uptravi is used as an auxiliary medicinal product, as part of the PAH standard treatment and administered according to the local prescribing information

Sponsors

Actelion
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Signed informed consent form prior to any study-mandated procedure. * Male and female subjects aged from 18 to 75 years (inclusive), * Subjects with stable pulmonary arterial hypertension (PAH) defined as WHO Functional Class I-III at Visit 1 and Visit 2, and no change (i.e., introduction or dose change) in PAH-specific medication (i.e., ERA, PDE-5 inhibitor or sGC stimulator) and diuretics in the last 28 days prior to Visit 2. * Subjects currently treated with Uptravi® at a stable dose (i.e. unchanged dose) for at least 28 days before Visit 2. * Women of childbearing potential must have a negative pregnancy test at Visit 1 (screening) and Visit 2.

Exclusion criteria

* Pregnant, planning to become pregnant or lactating. * Known and documented moderate or severe hepatic impairment. * Subjects having received gemfibrozil at any time since initiation of Uptravi®. * Treatment with any prostacyclin and prostacyclin analogs within 28 days prior to Visit 1. * SBP \< 90 mmHg at Visit 1 or at Visit 2. * Known or suspected uncontrolled hyperthyroidism. * Severe renal failure and ongoing or planned dialysis. * Any known factor or disease that might interfere with treatment compliance, study conduct, or interpretation of the results. * Known concomitant life-threatening disease with a life expectancy \< 12 months. * Treatment with another investigational treatment within 3 months of Visit 1.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With at Least One Adverse Event (AE)From Day 1 to Day 37AE is any untoward medical event that occurs in a participant during the course of the study whether or not considered by the investigator as related to the study treatment.
Number of Participants With Prostacyclin-associated Adverse EventsFrom Day 1 to Day 37Prostacyclin-associated AE include headache, diarrhea, nausea, vomiting, jaw pain, myalgia, pain in the extremity, flushing and arthralgia.
Number of Participants With Adverse Event Related to Injection Site ReactionsFrom Day 2 to Day 3This is the number of participants with at least one clinically significant reaction at the injection site (e.g., erythema/redness, tenderness, swelling, induration, hemorrhage at the injection site) occurring on the days of intravenous (iv) selexipag injection.
Number of Participants With Prostacyclin-associated AEs Leading to Study Treatment DiscontinuationFrom Day 2 to Day 3This is the number of subjects who discontinued the i.v. selexipag treatment due to prostacyclin-associated adverse events (headache, diarrhea, nausea, vomiting, jaw pain, myalgia, pain in the extremity, flushing and arthralgia).
Number of Participants With PAH-related Adverse EventsFrom Day 1 to Day 37This is the number of participants with at least one AE considered to be related to pulmonary arterial hypertension during the course of the study.

Countries

Germany, United States

Participant flow

Recruitment details

Twenty-two patients treated with Uptravi for pulmonary arterial hypertension (PAH) were screened; 20 of them were enrolled in the study.

Participants by arm

ArmCount
Selexipag
Subjects treated with a stable dose of oral selexipag (Uptravi) between 200 and 1600 ug twice daily continued to take Uptravi at their prescribed dose during Period 1 (Day 1), then they were switched to intravenous (iv) selexipag during period 2 (3 doses, Day 2 & Day 3) and back to Uptravi during Period 3
20
Total20

Baseline characteristics

CharacteristicSelexipag
Age, Continuous56.5 years
STANDARD_DEVIATION 9.43
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
20 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
PAH etiology at baseline
Associated with CHD
1 Participants
PAH etiology at baseline
Associated with CTD
4 Participants
PAH etiology at baseline
Associated with HIV
0 Participants
PAH etiology at baseline
Associated with portal hypertension
1 Participants
PAH etiology at baseline
Associated with schistosomiasis
0 Participants
PAH etiology at baseline
Drug or toxin induced PAH
0 Participants
PAH etiology at baseline
Heritable PAH
1 Participants
PAH etiology at baseline
Idiopathic PAH
13 Participants
PAH-specific therapies at baseline
ERA + PDE5-inhibitors
13 Participants
PAH-specific therapies at baseline
ERA + sGC stimulator
5 Participants
PAH-specific therapies at baseline
PDE-5 inhibitors
1 Participants
PAH-specific therapies at baseline
sGC stimulator
1 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants
Race/Ethnicity, Customized
Asian
1 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants
Race/Ethnicity, Customized
Native Hawaiian or other Pacific Islander
0 Participants
Race/Ethnicity, Customized
Other
0 Participants
Race/Ethnicity, Customized
White
19 Participants
Region of Enrollment
Germany
13 Participants
Region of Enrollment
United States
7 Participants
Sex: Female, Male
Female
16 Participants
Sex: Female, Male
Male
4 Participants
Uptravi dose at screening
1000 ug twice daily
3 Participants
Uptravi dose at screening
1200 ug twice daily
2 Participants
Uptravi dose at screening
1400 ug twice daily
1 Participants
Uptravi dose at screening
1600 ug twice daily
9 Participants
Uptravi dose at screening
200 ug twice daily
0 Participants
Uptravi dose at screening
400 ug twice daily
1 Participants
Uptravi dose at screening
600 ug twice daily
2 Participants
Uptravi dose at screening
800 ug twice daily
2 Participants
World Health Organization Functional classes (WHO FC)
FC I
1 Participants
World Health Organization Functional classes (WHO FC)
FC II
13 Participants
World Health Organization Functional classes (WHO FC)
FC III
6 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
13 / 20
serious
Total, serious adverse events
2 / 20

Outcome results

Primary

Number of Participants With Adverse Event Related to Injection Site Reactions

This is the number of participants with at least one clinically significant reaction at the injection site (e.g., erythema/redness, tenderness, swelling, induration, hemorrhage at the injection site) occurring on the days of intravenous (iv) selexipag injection.

Time frame: From Day 2 to Day 3

Population: iv safety analysis set including all enrolled subjects who received at least one dose of intravenous selexipag during Period 2

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SelexipagNumber of Participants With Adverse Event Related to Injection Site Reactions2 Participants
Primary

Number of Participants With at Least One Adverse Event (AE)

AE is any untoward medical event that occurs in a participant during the course of the study whether or not considered by the investigator as related to the study treatment.

Time frame: From Day 1 to Day 37

Population: Safety analysis set including all enrolled subjects who received at least one dose of Uptravi or intravenous selexipag during any of the study periods

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SelexipagNumber of Participants With at Least One Adverse Event (AE)15 Participants
Primary

Number of Participants With PAH-related Adverse Events

This is the number of participants with at least one AE considered to be related to pulmonary arterial hypertension during the course of the study.

Time frame: From Day 1 to Day 37

Population: Safety analysis set including all enrolled subjects who received at least one dose of Uptravi or intravenous selexipag during any of the study periods

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SelexipagNumber of Participants With PAH-related Adverse Events3 Participants
Primary

Number of Participants With Prostacyclin-associated Adverse Events

Prostacyclin-associated AE include headache, diarrhea, nausea, vomiting, jaw pain, myalgia, pain in the extremity, flushing and arthralgia.

Time frame: From Day 1 to Day 37

Population: Safety analysis set including all enrolled subjects who received at least one dose of Uptravi or intravenous selexipag during any of the study periods

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SelexipagNumber of Participants With Prostacyclin-associated Adverse Events7 Participants
Primary

Number of Participants With Prostacyclin-associated AEs Leading to Study Treatment Discontinuation

This is the number of subjects who discontinued the i.v. selexipag treatment due to prostacyclin-associated adverse events (headache, diarrhea, nausea, vomiting, jaw pain, myalgia, pain in the extremity, flushing and arthralgia).

Time frame: From Day 2 to Day 3

Population: iv safety analysis set including all enrolled subjects who received at least one dose of intravenous selexipag during period 2

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SelexipagNumber of Participants With Prostacyclin-associated AEs Leading to Study Treatment Discontinuation0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026