Clinical trial • Phase III • Respiratory
TREPROSTINIL for Pulmonary hypertension associated with interstitial lung disease (WHO Group 3)
Phase III trial of TREPROSTINIL for Pulmonary hypertension associated with interstitial lung disease (WHO Group 3).
Overview
- Trial Therapeutic Area
- Respiratory
- Trial Disease
- Pulmonary hypertension associated with interstitial lung disease (WHO Group 3)
- Trial Stage
- Phase III
- Drug Modality
- Small molecule
Key dates
- Initial CTIS Submission Date
- 07-11-2025
- First CTIS Authorization Date
- 11-03-2026
Trial design
Randomised, open-label, l606 placebo inhalation suspension (matching placebo); dose/schedule not specified-controlled Phase III trial in Austria, Belgium, Czechia and others.
- Randomised
- Yes
- Open Label
- Yes
- Comparator
- L606 Placebo Inhalation Suspension (matching placebo); dose/schedule not specified
- Target Sample Size
- 222
- Trial Duration For Participant
- 168
Eligibility
Recruits 222 adults.
Inclusion criteria
- {"criterion_text":"- Participant is between 18 years to 80 years old"}
- {"criterion_text":"- Has a confirmed diagnosis of ILD based on High Resolution Computed Tomography (HRCT) chest imaging"}
- {"criterion_text":"- Evidence of PH as demonstrated from Right Heart Catheterization (RHC) with the following hemodynamic parameters: a. Pulmonary vascular resistance (PVR) ≥ 320 dynes.sec/cm5, and b. Mean Pulmonary Artery Pressure (mPAP) of ≥ 25 mmHg, and c. Pulmonary capillary wedge pressure (PCWP) or Left-Ventricular End Diastolic Pressure (LVEDP) of ≤ 15 mmHg"}
- {"criterion_text":"- FEV1/FVC (ratio) > 0.70"}
- {"criterion_text":"- 6-minute walk distance ≥ 150 meters"}
Exclusion criteria
- {"criterion_text":"- PH in the updated WHO Classification Groups 1, 2, 4, or 5"}
- {"criterion_text":"- Has evidence of clinically significant left-sided heart disease as defined by echocardiography"}
- {"criterion_text":"- Participants with history of persistent/permanent or uncontrolled atrial fibrillation"}
- {"criterion_text":"- Participants with severe obstructive sleep apnea"}
- {"criterion_text":"- Has experienced exacerbation of underlying lung disease or active respiratory infection requiring antibiotics"}
- {"criterion_text":"- Initiation of pulmonary rehabilitation"}
- {"criterion_text":"- Severe coronary heart disease or unstable angina or myocardial infarction within 180 days prior to Screening"}
Endpoints
Primary endpoints
- {"endpoint_text":"- Change from Baseline to Week 16 in 6-minute walk distance (6MWD)","definition_or_measurement_approach":"Change in walk distance as measured by the six-minute walk test (6MWT) from baseline to Week 16"}
Secondary endpoints
- {"endpoint_text":"- Time to first occurrence of 1 of the following clinical worsening event (CWE) criterion are met: -Death (all causes) -Hospitalization due to a cardio-pulmonary indication related to underlying disease -Lung transplant -Decrease in 6MWD > 15% from Baseline related to disease under study, at 2 consecutive visits and at least 1 week apart","definition_or_measurement_approach":"Defined as time to first occurrence of any listed clinical worsening events (death, cardio-pulmonary hospitalization related to underlying disease, lung transplant, or ≥15% decrease in 6MWD from baseline confirmed at two consecutive visits ≥1 week apart)"}
- {"endpoint_text":"- Change from Baseline to Week 24 in 6-Minute Walk Distance (6MWD)","definition_or_measurement_approach":"Change in 6MWD measured by the six-minute walk test (6MWT) from baseline to Week 24"}
- {"endpoint_text":"- Change from Baseline to Week 16 in 6MWD","definition_or_measurement_approach":"Change in 6MWD measured by the six-minute walk test (6MWT) from baseline to Week 16"}
Recruitment
- Planned Sample Size
- 222
- Recruitment Window Months
- 67
- Consent Approach
- Informed consent is obtained from adult participants (study includes participants aged 18–80). Country-specific subject information sheets and informed consent forms are provided (documents available for Austria, Belgium, Czechia, France, Germany, Italy, Latvia, Portugal, Spain, Poland in their respective languages); a pregnancy-specific ICF is listed. (Detailed consent/assent text not available in the extract.)
Geography
- Total Number Of Sites
- 43
- Total Number Of Participants
- 121
Austria
- Earliest CTIS Part Ii Submission Date
- 05-03-2026
- Latest Decision Or Authorization Date
- 22-03-2026
- Processing Time Days
- 17
- Number Of Sites
- 2
- Number Of Participants
- 6
Sites
- Site Name
- Medical University Of Graz
- Department Name
- Internal Medicine
- Contact Person Name
- Gabor Kovacs
- Contact Person Email
- gabor.kovacs@uniklinikum.kages.at
- Site Name
- Ordensklinikum Linz GmbH
- Department Name
- Internal Medicine
- Contact Person Name
- Regina Steringer-Mascherbauer
- Contact Person Email
- StudienDermaKardio@bhs.at
Belgium
- Earliest CTIS Part Ii Submission Date
- 18-02-2026
- Latest Decision Or Authorization Date
- 11-03-2026
- Processing Time Days
- 21
- Number Of Sites
- 3
- Number Of Participants
- 8
Sites
- Site Name
- Universitair Ziekenhuis Gent
- Department Name
- Department of Internal medicine
- Contact Person Name
- Geert Van Pottelberge
- Contact Person Email
- pneumostudies@uzgent.be
- Site Name
- Hopital Erasme
- Department Name
- Department of Cardiology
- Contact Person Name
- Jean-Luc Vachiéry
- Contact Person Email
- SecMed.Cardio.erasme@hubruxelles.be
- Site Name
- UZ Leuven
- Department Name
- Department of Pneumonology
- Contact Person Name
- Laurent Godinas
- Contact Person Email
- pulmonalehypertensie@uzleuven.be
Czechia
- Earliest CTIS Part Ii Submission Date
- 13-02-2026
- Latest Decision Or Authorization Date
- 13-03-2026
- Processing Time Days
- 28
- Number Of Sites
- 1
- Number Of Participants
- 3
Sites
- Site Name
- Vseobecna Fakultni Nemocnice V Praze
- Department Name
- Pulmonary Hypertension Centre
- Contact Person Name
- Jansa Pavel
- Contact Person Email
- plicnihypertenze@vfn.cz
France
- Earliest CTIS Part Ii Submission Date
- 23-02-2026
- Latest Decision Or Authorization Date
- 17-03-2026
- Processing Time Days
- 22
- Number Of Sites
- 7
- Number Of Participants
- 20
Sites
- Site Name
- CHRU De Nancy
- Department Name
- Pneumologie
- Contact Person Name
- Ari Chaouat
- Contact Person Email
- a.chaouat@chru-nancy.fr
- Site Name
- Les Hopitaux Universitaires De Strasbourg
- Department Name
- Pneumologie
- Contact Person Name
- Marianne Riou
- Contact Person Email
- marianne.riou@chru-strasbourg.fr
- Site Name
- Centre Hospitalier Regional De Marseille
- Department Name
- Maladies pulmonaires
- Contact Person Name
- Martine Reynaud-Gaubert
- Contact Person Email
- secretariat.reynaud-gaubert@ap-hm.fr
- Site Name
- Assistance Publique Hopitaux De Paris
- Department Name
- Pneumologie et réanimation respiratoire
- Contact Person Name
- Olivier Sitbon
- Contact Person Email
- olivier.sitbon@aphp.fr
- Site Name
- Hospices Civils De Lyon
- Department Name
- Pneumologie
- Contact Person Name
- Vincent Cottin
- Contact Person Email
- vincent.cottin@chu-lyon.fr
- Site Name
- Centre Hospitalier Universitaire De Lille
- Department Name
- Médecine interne
- Contact Person Name
- Eric Hachulla
- Contact Person Email
- eric.hachulla@chu-lille.fr
- Site Name
- Centre Hospitalier Universitaire De Toulouse
- Department Name
- Pneumologie
- Contact Person Name
- Grégoire Prévot
- Contact Person Email
- prevotinvestigateur31@gmail.com
Germany
- Earliest CTIS Part Ii Submission Date
- 10-03-2026
- Latest Decision Or Authorization Date
- 18-03-2026
- Processing Time Days
- 8
- Number Of Sites
- 10
- Number Of Participants
- 26
Sites
- Site Name
- Universitaetsklinikum Koeln AöR
- Department Name
- Innere Medizin
- Contact Person Name
- Stephan Rosenkranz
- Contact Person Email
- stephan.rosenkranz@uk-koeln.de
- Site Name
- University Medical Center Hamburg-Eppendorf
- Department Name
- Pneumologie
- Contact Person Name
- Hans Klose
- Contact Person Email
- pneumo-studienzentrale@uke.de
- Site Name
- Krankenhaus Neuwittelsbach
- Department Name
- Internal Medicine II
- Contact Person Name
- Hanno Leuchte
- Contact Person Email
- sekretariat.med2@krankenhaus-neuwittelsbach.de
- Site Name
- Justus-Liebig-Universitaet Giessen
- Department Name
- Medicine II
- Contact Person Name
- Khodr Tello
- Contact Person Email
- Khodr.Tello@innere.med.uni-giessen.de
- Site Name
- Universitaetsmedizin Greifswald KöR
- Department Name
- Internal Medicine, Respiratory Medicine and Infectious Diseases
- Contact Person Name
- Beate Stubbe
- Contact Person Email
- innereb@med.uni-greifswald.de
- Site Name
- Thoraxklinik Heidelberg gGmbH
- Department Name
- Centre for pulmonary hypertension
- Contact Person Name
- Ekkehard Gruenig
- Contact Person Email
- PH-Studies.THOR@med.uni-heidelberg.de
- Site Name
- LMU Klinikum Muenchen AöR
- Department Name
- Internal Medicine V
- Contact Person Name
- Juergen Behr
- Contact Person Email
- direktion.med5@med.uni-muenchen.de
- Site Name
- Ruhrlandklinik Westdeutsches Lungenzentrum Am Universitaetsklinikum Essen gGmbH
- Department Name
- Pneumologie
- Contact Person Name
- Francesco Bonella
- Contact Person Email
- christina.kilicaslan@rlk.uk-essen.de
- Site Name
- Technische Universitaet Dresden
- Department Name
- Pneumologie
- Contact Person Name
- Michael Halank
- Contact Person Email
- pulmo.studien@ukdd.de
- Site Name
- Medizinische Hochschule Hannover
- Department Name
- Respiratory and Infectious Medicine
- Contact Person Name
- Marius Hoeper
- Contact Person Email
- pneumo-trials@mh-hannover.de
Italy
- Earliest CTIS Part Ii Submission Date
- 23-02-2026
- Latest Decision Or Authorization Date
- 20-03-2026
- Processing Time Days
- 25
- Number Of Sites
- 6
- Number Of Participants
- 17
Sites
- Site Name
- IRCCS Ospedale Policlinico San Martino
- Department Name
- Cardiovascular Diseases Unit
- Contact Person Name
- Pietro Ameri
- Contact Person Email
- pietro.ameri@unige.it
- Site Name
- Azienda Ospedaliera Dei Colli
- Department Name
- UOC Pneumotisiologia
- Contact Person Name
- Marialuisa Bocchino
- Contact Person Email
- marialuisa.bocchino@unina.it
- Site Name
- Fondazione IRCCS Policlinico San Matteo
- Department Name
- U.O. Cardiologia
- Contact Person Name
- Stefano Ghio
- Contact Person Email
- segreteria.cardiologia@smatteo.pv.it
- Site Name
- Azienda Ospedaliero-Universitaria Policlinico Umberto I
- Department Name
- UOC Malattie Cardiovascolari
- Contact Person Name
- Silvia Papa
- Contact Person Email
- silvia.papa@uniroma.it
- Site Name
- Fondazione IRCCS San Gerardo Dei Tintori
- Department Name
- UOC Pneumologia
- Contact Person Name
- Giuseppe Paciocco
- Contact Person Email
- centrofase1@irccs-sangerardo.it
- Site Name
- Istituto Mediterraneo Per I Trapianti E Terapie Ad Alta Specializzazione S.r.l. I.S.M.E.T.T. S.r.l.
- Department Name
- Unità Pneumologia
- Contact Person Name
- Patrizio Vitulo
- Contact Person Email
- pvitulo@ismett.edu
Latvia
- Earliest CTIS Part Ii Submission Date
- 20-02-2026
- Latest Decision Or Authorization Date
- 18-03-2026
- Processing Time Days
- 26
- Number Of Sites
- 1
- Number Of Participants
- 4
Sites
- Site Name
- Pauls Stradins Clinical University Hospital
- Department Name
- Department of Cardiology
- Contact Person Name
- Andris Skride
- Contact Person Email
- info@stradini.lv
Portugal
- Earliest CTIS Part Ii Submission Date
- 30-12-2025
- Latest Decision Or Authorization Date
- 13-03-2026
- Processing Time Days
- 73
- Number Of Sites
- 4
- Number Of Participants
- 9
Sites
- Site Name
- Unidade Local De Saude De Santo Antonio E.P.E.
- Department Name
- Pulmonary Vascular Disease Unit
- Contact Person Name
- Mário Santos
- Contact Person Email
- geral.investigacao.defi@chporto.min-saude.pt
- Site Name
- Unidade Local De Saude De Almada-Seixal E.P.E.
- Department Name
- Department of Pneumology
- Contact Person Name
- Ana Cláudia Vieira
- Contact Person Email
- secretariado.cardiologia@ulsas.min-saude.pt
- Site Name
- Unidade Local De Saude De Coimbra E.P.E.
- Department Name
- Department of Cardiology
- Contact Person Name
- Graça Castro
- Contact Person Email
- uicc@ulscoimbra.min-saude.pt
- Site Name
- Unidade Local De Saude De Santa Maria E.P.E.
- Department Name
- Department of Cardiology
- Contact Person Name
- Rui Plácido
- Contact Person Email
- gaic@medicina.ulisboa.pt
Spain
- Earliest CTIS Part Ii Submission Date
- 16-02-2026
- Latest Decision Or Authorization Date
- 18-03-2026
- Processing Time Days
- 30
- Number Of Sites
- 6
- Number Of Participants
- 20
Sites
- Site Name
- Hospital Universitario Y Politecnico La Fe
- Department Name
- Pulmonology
- Contact Person Name
- Raquel López
- Contact Person Email
- neumologia_ds07@gva.es
- Site Name
- Hospital Del Mar
- Department Name
- Pulmonology
- Contact Person Name
- Diego Rodríguez
- Contact Person Email
- info@researchmar.net
- Site Name
- Hospital Universitari Vall D Hebron
- Department Name
- Pulmonology
- Contact Person Name
- Berta Saez
- Contact Person Email
- respiratoryclinicaltrials@vallhebron.cat
- Site Name
- Hospital Clinic De Barcelona
- Department Name
- Pulmonology
- Contact Person Name
- Isabel Blanco
- Contact Person Email
- htpulm@clinic.cat
- Site Name
- Hospital Universitario 12 De Octubre
- Department Name
- Cardiology
- Contact Person Name
- Alejandro Cruz Utrilla
- Contact Person Email
- cardioinvestigacion@h12o.es
- Site Name
- Hospital Universitario Marques De Valdecilla
- Department Name
- Pulmonology
- Contact Person Name
- José Manuel Cifrián Martínez
- Contact Person Email
- neumologiavaldecilla@gmail.com
Poland
- Earliest CTIS Part Ii Submission Date
- 10-02-2026
- Latest Decision Or Authorization Date
- 23-03-2026
- Processing Time Days
- 41
- Number Of Sites
- 3
- Number Of Participants
- 8
Sites
- Site Name
- Krakowski Szpital Specjalistyczny Im. Sw. Jana Pawla II
- Department Name
- Department of Cardiac and Vascular Diseases
- Contact Person Name
- Grzegorz Kopec
- Contact Person Email
- sekr_kard@szpitaljp2.krakow.pl
- Site Name
- Wojewodzki Szpital Specjalistyczny Im. Stefana Kardynala Wyszynskiego Samodzielny Publiczny Zaklad Opieki Zdrowotnej W Lublinie
- Department Name
- Department of Cardiology and Intensive Care Unit
- Contact Person Name
- Piotr Blaszczak
- Contact Person Email
- lubkard@szpital.lublin.pl
- Site Name
- Uniwersytecki Szpital Kliniczny W Poznaniu
- Department Name
- Department of Cardiology
- Contact Person Name
- Tatiana Mularek-Kubzdela
- Contact Person Email
- ucwbk@ump.edu.pl
Sponsor
Primary sponsor
- Full Name
- Liquidia Technologies Inc.
- Organisation Type
- Pharmaceutical company
- Country Of Registered Address
- United States
Contract research organisations
- Name
- Longboat Clinical Limited
- Responsibilities
- Central Integrative platform, sponsor - site - patient facing
- Name
- Ppd Inc.
- Responsibilities
- code 4
- Name
- CTI Clinical Trial and Consulting Services Europe GmbH
- Responsibilities
- codes 1,12,5
- Name
- Cti Clinical Trial Services Inc.
- Responsibilities
- codes 1,11,12,13,4,5,8
- Name
- CTI Laboratory Services Spain S.L.
- Responsibilities
- code 4
- Name
- 4g Clinical LLC
- Responsibilities
- code 3
Third parties
- {"country":"Ireland","full_name":"Longboat Clinical Limited","duties_or_roles":"code 15: Central Integrative platform, sponsor - site - patient facing","organisation_type":"Non-Pharmaceutical company"}
- {"country":"United States","full_name":"Ppd Inc.","duties_or_roles":"code 4","organisation_type":"Pharmaceutical company"}
- {"country":"Spain","full_name":"CTI Laboratory Services Spain S.L.","duties_or_roles":"code 4","organisation_type":"Pharmaceutical company"}
- {"country":"United States","full_name":"Greenphire LLC","duties_or_roles":"code 15: Travel vendor","organisation_type":"Non-Pharmaceutical company"}
- {"country":"United States","full_name":"4g Clinical LLC","duties_or_roles":"code 3","organisation_type":"Non-Pharmaceutical company"}
- {"country":"United States","full_name":"Tcm Groups Inc.","duties_or_roles":"code 10","organisation_type":"Industry"}
- {"country":"Belgium","full_name":"CluePoints","duties_or_roles":"code 15: Risk-Based Study Execution (RBx) & Data Quality Oversight","organisation_type":"Pharmaceutical company"}
- {"country":"Germany","full_name":"CTI Clinical Trial and Consulting Services Europe GmbH","duties_or_roles":"codes 1,12,5","organisation_type":"Pharmaceutical company"}
- {"country":"United States","full_name":"Medidata Solutions Inc.","duties_or_roles":"code 6","organisation_type":"Non-Pharmaceutical company"}
- {"country":"United States","full_name":"Cti Clinical Trial Services Inc.","duties_or_roles":"codes 1,11,12,13,4,5,8","organisation_type":"Pharmaceutical company"}
Investigational products
- Investigational Product Name
- Treprostinil Liposome
- Active Substance
- TREPROSTINIL
- Modality
- Small molecule
- Routes Of Administration
- INHALATION
- Route
- INHALATION
- Maximum Dose
- 950 µg (max daily dose)
- Investigational Product Name
- L606 Placebo Inhalation Suspension
- Modality
- Other
Related trials
Other published trials that may interest you.
- phospholipid fraction, bovine lung for Idiopathic pulmonary fibrosis
- Allogeneic bone marrow-derived mesenchymal adult stromal cells, ex-vivo expanded for Chronic lung allograft dysfunction (CLAD) | Bronchiolitis obliterans syndrome (BOS) in lung transplant recipients
- IVX-121; HUMAN METAPNEUMOVIRUS, VIRUS-LIKE PROTEIN for Respiratory syncytial virus infection | Human metapneumovirus infection
- Lyophilized bacterial lysates of: Haemophilus influenzae, Streptococcus (Diplococcus) pneumoniae, Klebsiella pneumoniae and ozaenae, Staphylococcus aureus, Streptococcus pyogenes and viridans, Moraxella (Branhamella/Neisseria) catarrhalis (OM-85) for Respiratory tract infections with wheezing lower respiratory illness
- Roginolisib for Advanced non-squamous non-small cell lung cancer