Evidence map›Paper›PMID 41627369›Full record

ArticleAdvances in therapy2026

Efficacy and Safety of Oral Treprostinil in Patients with Pulmonary Arterial Hypertension on Background Monotherapy or Dual Therapy.

Daniel Lachant, Amresh Raina, Mrinalini Krishnan, Namita Sood, Vijay Balasubramanian, Joan Albert Barbera, David G Kiely, Dasom Lee, Benjamin Wu, Stephanie Hwang and 3 more

2 registry-linked trialsAbstract read
In one paragraph

Article in Advances in therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00325442 phase3completednot on this map

A 16-Week, International, Multicenter, Double-Blind, Randomized, Placebo-Controlled Comparison of the Efficacy and Safety of Oral UT-15C Sustained Release Tablets in Combination With an Endothelin Receptor Antagonist and/or a Phosphodiesterase-5 Inhibitor in Subjects With Pulmonary Arterial Hypertension

TypeinterventionalSponsorUnited TherapeuticsRan2006 to 2010Enrolled354ConditionsPulmonary HypertensionArmsOral treprostinil (UT-15C) sustained release tablets, Placebo
NCT00887978 phase3completednot on this map

A 16-Week, International, Multicenter, Double-Blind, Randomized, Placebo-Controlled Study of the Efficacy and Safety of Oral UT-15C Sustained Release Tablets in Subjects With Pulmonary Arterial Hypertension

TypeinterventionalSponsorUnited TherapeuticsRan2009 to 2011Enrolled310ConditionsPulmonary HypertensionArmsUT-15C SR, Placebo
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Daniel LachantDivision of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY, 14642, USA. daniel_lachant@urmc.rochester.edu.ORCID 0000-0003-3441-8264
Amresh RainaCardiology-Advanced Heart Failure & Transplant, Allegheny General Hospital, 490 E North Ave Suite 307, Pittsburgh, PA, 15212, USA.
Mrinalini KrishnanPulmonary Hypertension, Right Heart Failure, and CTEPH Program Heart and Vascular Institute, Temple University Lewis Katz School of Medicine, 3401 N. Broad Street, Philadelphia, PA, 19140, USA.
Namita SoodUniversity of California-Davis, 4150 V Street, PSSB Suite 3400, Sacramento, CA, 95817, USA.
Vijay BalasubramanianValley Advanced Lung Diseases Institute, 7417 N Cedar Ave Ste 101, Fresno, CA, 93720, USA.
Joan Albert BarberaDepartment of Pulmonary Medicine, Biomedical Research Networking Center on Respiratory Diseases (CIBERES, Hospital Clínic-IDIBAPS, University of Barcelona, Villarroel 170, 08036, Barcelona, Spain.
David G KielyDivision of Clinical Medicine, School of Medicine and Population Health, University of Sheffield, Sheffield: Beech Hill Rd, Sheffield, S10 2RX, UK.
Dasom LeeUnited Therapeutics, 55 TW Alexander Dr, Durham, NC, 27709, USA.
Benjamin WuUnited Therapeutics, 55 TW Alexander Dr, Durham, NC, 27709, USA.
Stephanie HwangUnited Therapeutics, 55 TW Alexander Dr, Durham, NC, 27709, USA.
Scott SeamanUnited Therapeutics, 55 TW Alexander Dr, Durham, NC, 27709, USA.
Meredith BroderickUnited Therapeutics, 55 TW Alexander Dr, Durham, NC, 27709, USA.
Jean ElwingPulmonary Hypertension Program, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, 231 Albert Sabin Way, ML 0564, Cincinnati, OH, 45267, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPulmonary arterial hypertension (PAH) is a progressive, often fatal disease characterized by an elevation in pulmonary arterial pressure and pulmonary vascular resistance (PVR). Oral treprostinil is indicated for the treatment of PAH and has been shown to delay disease progression and to improve exercise capacity.

methodsThe purpose of this report is to examine and summarize the data on the use of oral treprostinil in patients already on dual therapy with an endothelin receptor antagonist (ERA) and phosphodiesterase type-5 inhibitor (PDE-5i), using data from the FREEDOM-C study, FREEDOM-C2 study, and a retrospective chart review.

resultsIn this analysis, background monotherapy versus dual therapy did not have an impact on clinical parameters (6-min walk distance). Additionally, the number of background therapies did not have an impact on the dose of oral treprostinil achieved at week 16 or measures typically used to assess clinical efficacy in patients with PAH (change in 6MWD at week 16 and NT-proBNP).

conclusionOral treprostinil is a safe and efficacious treatment option and has been shown to further improve clinical parameters and risk status in patients with PAH on background dual therapy. TRIAL REGISTRY: ClinicalTrials.gov identifier, NCT00325442 and NCT00887978.

Indexed as

Antihypertensive AgentsEndothelin Receptor AntagonistsEpoprostenolHypertension, PulmonaryPhosphodiesterase 5 InhibitorsPulmonary Arterial HypertensionAdministration, OralDrug Therapy, CombinationFemaleHumansMaleMiddle AgedRetrospective StudiesTreatment OutcomeAntihypertensive AgentsEndothelin Receptor AntagonistsEpoprostenolPhosphodiesterase 5 InhibitorstreprostinilFREEDOM-CFREEDOM-C2ProstacyclinPulmonary hypertensionRetrospective chart reviewREVEAL Lite 2Treprostinil

Identifiers

PMID41627369
PMCPMC12999644

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.