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selexipag

Phase 3

Pulmonary Arterial Hypertension | Small molecule | Cardiovascular |Johnson & Johnson|Last Updated: Jun 5, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials3
Total Enrollment1,253
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02471183Study to Assess the Tolerability and the Safety of the Transition From Inhaled Treprostinil to Oral Selexipag in Patients With Pulmonary Arterial HypertensionPHASE3 COMPLETED 34Oct 12, 2015Dec 5, 2016Jan 23, 201815 United States
NCT01106014Selexipag (ACT-293987) in Pulmonary Arterial HypertensionPHASE3 COMPLETED 1,156Dec 1, 2009Oct 1, 2014Oct 27, 2025182 United States, Argentina +37
NCT03492177A Clinical Study of to Confirm the Doses of Selexipag in Children With Pulmonary Arterial HypertensionPHASE2 ACTIVE NOT_RECRUITING 63Jul 23, 2018Dec 31, 2026Jun 5, 202634 United States, Belarus +14
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Study Endpoints
Primary Endpoints
Percentage of Subjects With Sustained Treatment Transition
At Week 16

A sustained treatment transition is considered if the 3 following criteria are met a) being on study treatment (selexipag) at Week 16, and b) not having a study treatment interruption(s) of a total of 8 days or more prior to Week 16, and c) absence of inhaled treprostinil or any prostanoid treatment after Week 8 up to Week 16. The percentage of subjects with a sustained treatment transition is calculated with 95% confidence interval (CI) using the Clopper-Pearson method.

Percentage of Subjects With Treatment-emergent Adverse Events (AEs),
26 weeks on average (from the first dose of selexipag up to 30 days after the last dose of selexipag)

Percentage of subjects with treatment-emergent AEs (serious and non serious), regardless of relationship to selexipag

Number of Subjects With Adverse Events Leading to Premature Discontinuation of Selexipag
Up to 22 weeks on average

Number of subjects with adverse events leading to premature discontinuation of selexipag is determined from the first dose of selexipag up to the last dose of selexipag

Absolute Change From Baseline Over Time in Blood Pressure
Baseline, Week 4, Week 12, Week 16

Both systolic(SBP) and diastolic (DBP) arterial blood pressure were measured in a sitting position after at least 5 minutes of rest at scheduled time points. Median change from baseline to pre-specified post-baseline visits are calculated

Absolute Change From Baseline Over Time in Heart Rate (HR)
Baseline, Week 4, Week 12, Week 16

Pulse rate is measured after at least 5 minutes of rest in a sitting position. Median change from baseline to pre-specified post-baseline visits are calculated.

Maximal Tolerated Dose
At Week 12, in subjects still on selexipag at Week 16

This is the individual maximal tolerated dose (MTD) observed at Week 12 in the subjects still on selexipag at Week 16. MTD is defined as the dose of selexipag reached with the last dose change up to Week 12

Time to Discontinuation of Inhaled Treprostinil.
Baseline to Week 16

Median time from baseline (Day1) to the end of down-titration of inhaled treprostinil is calculated

Time From Randomization to the First Morbidity Event or Death (All Causes) up to 7 Days After the Last Study Drug Intake
Up to 7 days after end of double-blind treatment (maximum: 4.3 years)

Time from randomization to the first occurrence of a morbidity event or death (all causes) was analyzed with the Kaplan-Meier method (event-free KM estimates at different time points). Morbidity event was defined as any of the following events confirmed by the Critical Event committee: * Hospitalization for worsening of pulmonary arterial hypertension (PAH), * Worsening of PAH resulting in need for lung transplantation or balloon atrial septostomy, * Initiation of parenteral prostanoid therapy or chronic oxygen therapy due to worsening of PAH, * Disease progression which was defined by a decrease in 6-minute walk distance from baseline (\>=15%, confirmed by a 2nd test on a different day) combined with worsening of WHO FC for patients belonging to WHO FC II/III at baseline, or combined with the need for additional PAH-specific therapy for patients belonging to WHO FC III/IV at baseline. Note: The number of patients at risk decreased over time but this cannot be captured below

Area Under the Plasma Concentration-time Curve Over a Dose Interval at Steady State of Selexipag and Its Metabolite ACT-333679 Combined (AUCτ, ss, Combined)
Week 1,Week 12: pre-dose, 1, 2, 4, 6, 8 and 12 h post-morning dose. Week 2, 4 and 6: pre-dose (Up to Week 12)

AUCτ, ss, combined was defined as the area under the plasma concentration-time curve over one dosing interval at steady state. AUCτ,ss,combined was calculated as 1/38 AUCτ,ss,selexipag plus 37/38 AUCτ,ss,ACT-333679.

Secondary Endpoints
Percentage of Subjects With WHO Functional Class (FC) Change From Baseline
Baseline and Week 16
Absolute Change in 6-minute Walk Distance (6MWD) at Trough
Baseline and Week 16
Percentage of Patients With Change in 6-minute Walk Distance (6MWD)
Baseline and Week 16
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Selexipag, Open LabelEXPERIMENTALSubjects on inhaled treprostinil treatment participate in a 16-week main treatment period including down-titration of treprostinil to end of Week 8 and parallel up-titration of selexipag to the maximum tolerated dose (MTD) up to Week 12, for each individual patient but not above 1600 mcg twice daily. From Week 12 up to Week 16, patients continue selexipag at their individual MTD. Patients could continue the study drug selexipag during the extended treatment period from Week 16 until commercial availability of selexipag.
1EXPERIMENTALSelexipag is up-titrated from Day 1 to Week 12 to each patient's maximum tolerated dose in the range of 200-1600 µg twice a day (b.i.d.) in 200 µg steps starting with one 200 µg oral tablet on Day 1. From Day 2 onwards, a b.i.d. dose regimen with an interval of approximately 12 hours is followed. If this dose (selexipag 200 μg b.i.d.) is well-tolerated, selexipag is up-titrated with weekly increments of 200 µg. Up-titration is followed by a stable maintenance treatment period from Week 12 onwards, up to Week 26, at the maximum tolerated dose
2PLACEBO_COMPARATORMatching placebo is administered orally with a dosing interval of approximately12 h. A (mock) up-titration scheme is followed
open label selexipagEXPERIMENTALThe first dose of selexipag (Uptravi) will be administered in the evening of Day 1 and will be based on the body weight. Thereafter selexipag will be administered twice daily (morning and evening). Selexipag will be up-titrated during the first 12 weeks, with weekly increments equal to the starting dose until the participants reach their individual maximum tolerated dose (iMTD) or until a maximum dose corresponding to their baseline weight category is achieved (which will be 8-fold of the corresponding starting dose). Up-titration is followed by a stable maintenance treatment period from Week 12 to Week 16, at the maximum tolerated dose. Thereafter, participants will be treated with selexipag as long as the treatment is beneficial to the participants, as per investigator's decision.
Interventions
NameTypeDescription
SelexipagDRUGTablets for oral administration containing 200 micrograms (mcg) of selexipag to be administered twice a day. The individual dose is to be established during the first 12 weeks of the study. Doses are in the range from 200 micrograms (1 tablet) to 1,600 micrograms (8 tablets).
PlaceboDRUGPlacebo tablets matching selexipag
selexipag (Uptravi)DRUGFilm-coated tablets for oral administration
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites15

Inclusion Criteria: * Male and female patients aged from 18 to 75 years (inclusive) with pulmonary arterial hypertension (PAH). * Etiology of PAH belonging to one of the following subgroups: idiopathic PAH, Heritable PAH, drug or toxin induced, associated with connective tissue disease, associated ...

Countries:United StatesArgentinaAustraliaAustriaBelarusBelgiumCanadaChileChinaColombiaCzechiaDenmarkFranceGermanyGreeceHungaryIndiaIrelandIsraelItalyMalaysiaMexicoNetherlandsPeruPolandRomaniaRussiaSerbiaSingaporeSlovakiaSouth KoreaSpainSwedenSwitzerlandTaiwanThailandTurkey (Türkiye)UkraineUnited Kingdom
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Recent Changes (Last 90 Days)
LOWJun 5, 2026NCT03492177lastUpdatePostDate: changed
LOWJun 5, 2026NCT03492177lastUpdatePostDate: changed
LOWJun 5, 2026NCT03492177lastUpdatePostDate: changed
LOWJun 5, 2026NCT03492177lastUpdatePostDate: changed
LOWMay 26, 2026NCT03492177primaryCompletionDate: changed
LOWMay 24, 2026NCT03492177studyFirstPostDate: changed