Actively Recruiting

Phase 3
Age: 18Years +
All Genders
NCT05943535

Study of the Efficacy and Safety of Inhaled Treprostinil in Subjects With Progressive Pulmonary Fibrosis (TETON-PPF)

Led by United Therapeutics · Updated on 2026-05-07

698

Participants Needed

153

Research Sites

209 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Study RIN-PF-305 is designed to evaluate the safety and efficacy of inhaled treprostinil in subjects with progressive pulmonary fibrosis (PPF) over a 52-week period.

CONDITIONS

Official Title

Study of the Efficacy and Safety of Inhaled Treprostinil in Subjects With Progressive Pulmonary Fibrosis (TETON-PPF)

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Subject gives voluntary informed consent to participate in the study.
  • Subject is 18 years of age or older at the time of signing informed consent.
  • Radiological evidence of pulmonary fibrosis affecting more than 10% of the lungs on an HRCT scan within the previous 12 months confirmed by central review.
  • Diagnosis of progressive pulmonary fibrosis (other than idiopathic pulmonary fibrosis) with at least one progression criterion within 24 months despite standard treatment: clinically significant decline in FVC (≥10% relative decline), marginal FVC decline (5% to <10%) with worsening respiratory symptoms, marginal FVC decline with increasing fibrotic changes on imaging, or worsening respiratory symptoms with increasing fibrotic changes on imaging.
  • Forced vital capacity (FVC) is 45% or greater of predicted at screening confirmed by central review.
  • Either on nintedanib or pirfenidone for at least 90 days prior to baseline and planning to continue treatment, or not on these treatments for at least 90 days prior to baseline and not planning to start them during the study; concomitant use of both drugs is not allowed.
  • If treated with immunosuppressive agents, treatment must have been ongoing for at least 120 days prior to baseline and refractory to treatment.
  • Women of childbearing potential must be non-pregnant and non-lactating and agree to abstain from intercourse or use two effective contraceptive methods during the study and for 30 days after.
  • Women who are sterilized or postmenopausal (amenorrhea for at least 12 months) are not considered of reproductive potential.
  • Males with partners of childbearing potential must agree to use condoms during treatment and for 48 hours after discontinuation.
  • Ability to communicate effectively with study personnel and willingness to comply with study procedures and attend all visits.
Not Eligible

You will not qualify if you...

  • Subject is pregnant or lactating.
  • Primary obstructive airway physiology (FEV1/FVC ratio less than 0.70) or greater emphysema than fibrosis on HRCT.
  • Diagnosis of idiopathic pulmonary fibrosis (IPF).
  • Intolerance or significant lack of efficacy to prostacyclin or analogues causing discontinuation or inability to titrate therapy.
  • Use of pulmonary arterial hypertension (PAH)-approved therapies including prostacyclin therapy, IP receptor agonists, endothelin receptor antagonists, PDE5 inhibitors, soluble guanylate cyclase stimulators, or activin signaling inhibitors within 60 days prior to baseline, except as needed PDE5-I use for erectile dysfunction without doses within 48 hours before efficacy assessments.
  • Receiving oxygen supplementation over 10 L/min at rest at baseline.
  • Exacerbation of interstitial lung disease or active pulmonary/upper respiratory infection within 30 days prior to baseline, with specific timing requirements after treatment or hospitalization.
  • Uncontrolled cardiac disease such as recent myocardial infarction or unstable angina.
  • Participation in investigational drug/device studies with medical interventions within 30 days prior to screening; non-interventional studies are allowed.
  • Acute pulmonary embolism within 90 days prior to baseline.
  • Any condition interfering with study assessments or participation as judged by the investigator.
  • Life expectancy less than 12 months due to ILD or other illness.
  • Use of nerandomilast within 60 days prior to baseline.

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 153 locations

1

UAB Lung Health Center

Birmingham, Alabama, United States, 35233

Actively Recruiting

2

Banner University Medical Center Phoenix Lung Institute

Phoenix, Arizona, United States, 85006

Actively Recruiting

3

Norton Thoracic Institute

Phoenix, Arizona, United States, 85013

Actively Recruiting

4

Peter Morton Medical Building

Los Angeles, California, United States, 90095

Actively Recruiting

5

NewportNativeMD, Inc.

Newport Beach, California, United States, 92663

Actively Recruiting

6

University of California Irvine Medical Center

Orange, California, United States, 92868

Actively Recruiting

7

Paradigm Clinical Research

Redding, California, United States, 45227

Actively Recruiting

8

UC Davis Health Medical Center

Sacramento, California, United States, 95817

Actively Recruiting

9

Paradigm Clinical Research

San Diego, California, United States, 92108

Actively Recruiting

10

Stanford University Medical Center

Stanford, California, United States, 94305

Actively Recruiting

11

Georgetown University Hospital

Washington D.C., District of Columbia, United States, 20007

Actively Recruiting

12

Ascension Medical Group St. Vincent's Lung Institute

Jacksonville, Florida, United States, 32204

Actively Recruiting

13

Mayo Clinic

Jacksonville, Florida, United States, 32224

Actively Recruiting

14

TGH/USF Center for Advanced Lung Disease and Lung Transplant

Tampa, Florida, United States, 33606

Actively Recruiting

15

The Emory Clinic

Atlanta, Georgia, United States, 45227

Actively Recruiting

16

Northwestern Memorial Hospital, Clinical Research Unit

Chicago, Illinois, United States, 60611

Actively Recruiting

17

Rush University Medical Center Outpatient Pulmonary Clinic

Chicago, Illinois, United States, 60612

Actively Recruiting

18

UI Health Hospital

Chicago, Illinois, United States, 60612

Actively Recruiting

19

Loyola University Medical Center

Maywood, Illinois, United States, 60153

Actively Recruiting

20

University of Kansas Medical Center

Kansas City, Kansas, United States, 66160

Actively Recruiting

21

University of Kentucky

Lexington, Kentucky, United States, 45227

Actively Recruiting

22

University of Louisville Healthcare Outpatient Research Clinic

Louisville, Kentucky, United States, 40202

Actively Recruiting

23

Tulane Medical Center

New Orleans, Louisiana, United States, 45227

Actively Recruiting

24

Johns Hopkins Asthma and Allergy Center

Baltimore, Maryland, United States, 21224

Actively Recruiting

25

University of Maryland Medical Center

Baltimore, Maryland, United States, 45227

Actively Recruiting

26

Adventist Healthcare White Oak Medical Center

Silver Spring, Maryland, United States, 20904

Actively Recruiting

27

Tufts Medical Center

Boston, Massachusetts, United States, 02111

Actively Recruiting

28

Massachusetts General Hospital

Boston, Massachusetts, United States, 02114

Actively Recruiting

29

Infinity Medical Center

North Dartmouth, Massachusetts, United States, 02747

Actively Recruiting

30

Beaumont Hospital, Royal Oak

Royal Oak, Michigan, United States, 48073

Actively Recruiting

31

University of Minnesota Health Clinical Research Unit (CRU)

Minneapolis, Minnesota, United States, 55455

Actively Recruiting

32

Mayo Clinic

Rochester, Minnesota, United States, 55905

Actively Recruiting

33

Memorial Hospital at Gulfport

Gulfport, Mississippi, United States, 39501

Actively Recruiting

34

The Lung Research Center, LLC

Chesterfield, Missouri, United States, 63017

Actively Recruiting

35

Saint Luke's Hospital of Kansas City

Kansas City, Missouri, United States, 64111

Actively Recruiting

36

Washington University School of Medicine

St Louis, Missouri, United States, 63110

Actively Recruiting

37

University of New Mexico

Albuquerque, New Mexico, United States, 87131

Actively Recruiting

38

Northwell Health

New Hyde Park, New York, United States, 11042

Actively Recruiting

39

Weill Cornell Medicine, New York-Presbyterian Hospital

New York, New York, United States, 10065

Actively Recruiting

40

Stony Brook Advanced Specialty Care

Stony Brook, New York, United States, 11794-8172

Actively Recruiting

41

Montefiore Medical Center

The Bronx, New York, United States, 10467

Actively Recruiting

42

Duke University Medical Center

Durham, North Carolina, United States, 27710

Actively Recruiting

43

PulmonIx LLC

Greensboro, North Carolina, United States, 27403

Actively Recruiting

44

East Carolina University

Greenville, North Carolina, United States, 27834

Actively Recruiting

45

Wake Forest Baptist Health

Winston-Salem, North Carolina, United States, 27104

Actively Recruiting

46

University of Cincinnati Medical Center

Cincinnati, Ohio, United States, 45219

Actively Recruiting

47

The Ohio State University Wexner Medical CEnter

Columbus, Ohio, United States, 43201

Actively Recruiting

48

Mercy Health St.Vincent Medical Center LLC

Toledo, Ohio, United States, 43608

Actively Recruiting

49

Pennsylvania State Hershey Medical Center and College of Medicine

Hershey, Pennsylvania, United States, 17033

Actively Recruiting

50

Hospital of the University of Pennsylvania

Philadelphia, Pennsylvania, United States, 19104

Actively Recruiting

51

Temple University Hospital

Philadelphia, Pennsylvania, United States, 19140

Actively Recruiting

52

Medical University of South Carolina-Nexus

Charleston, South Carolina, United States, 29425

Actively Recruiting

53

Prisma Health Pulmonology-Richland

Columbia, South Carolina, United States, 29203

Actively Recruiting

54

Clinical Trials Center of Middle Tennessee, LLC

Franklin, Tennessee, United States, 37067

Actively Recruiting

55

StatCare Pulmonary Consultants, PLLC

Knoxville, Tennessee, United States, 37919

Actively Recruiting

56

The Vanderbilt Lung Institute

Nashville, Tennessee, United States, 37204

Actively Recruiting

57

Baylor University Medical Center

Dallas, Texas, United States, 75246

Actively Recruiting

58

UT Southwestern Medical Center-Advanced Lung Clinic

Dallas, Texas, United States, 75390

Actively Recruiting

59

Houston Methodist Outpatient Center

Houston, Texas, United States, 77030

Actively Recruiting

60

The University of Texas Health Science Center at Houston, McGovern Medical School

Houston, Texas, United States, 77030

Actively Recruiting

61

A & A Research Consultants, LLC

McAllen, Texas, United States, 78503

Actively Recruiting

62

Metroplex Pulmonary and Sleep Center

McKinney, Texas, United States, 75069

Actively Recruiting

63

Intermountain Medical Center

Murray, Utah, United States, 84107

Actively Recruiting

64

University of Utah Health

Salt Lake City, Utah, United States, 84108

Actively Recruiting

65

University of Virginia Health System

Charlottesville, Virginia, United States, 22903

Actively Recruiting

66

Christopher King, MD

Falls Church, Virginia, United States, 22042

Actively Recruiting

67

Pulmonary Associates of Richmond, Inc.

Richmond, Virginia, United States, 23230

Actively Recruiting

68

University Hospital and UW Health Clinics

Madison, Wisconsin, United States, 53792

Actively Recruiting

69

Medical College of Wisconsin

Milwaukee, Wisconsin, United States, 53226-1222

Actively Recruiting

70

Instituto Ave Pulmo - Fundacion enfisema

Mar del Plata, Buenos Aires, Argentina, 7600

Actively Recruiting

71

Instituto Medico Rio Cuarto

Río Cuarto, Córdoba Province, Argentina, 5800

Actively Recruiting

72

Sanatorio Parque de Rosario - Consultorios Externos

Rosario, Santa Fe Province, Argentina, 2000

Actively Recruiting

73

Investigaciones en Patologias Respiratorias

San Miguel de Tucumán, Tucumán Province, Argentina, 4000

Actively Recruiting

74

CIMER-Centro Integral de Medicina Respiratoria

San Miguel de Tucumán, Tucumán Province, Argentina

Actively Recruiting

75

CINME Centro de Investigaciones Metabolicas

Buenos Aires, Argentina, C1056ABI

Actively Recruiting

76

Fundación Respirar

Buenos Aires, Argentina, C1426ABP

Actively Recruiting

77

Instituto de Medicina Respiratoria

Córdoba, Argentina, 5003

Actively Recruiting

78

Sanatorio Allende Cerro

Córdoba, Argentina, 5021

Actively Recruiting

79

Royal Prince Alfred Hospital

Camperdown, New South Wales, Australia, 2050

Actively Recruiting

80

St George Hospital

Kogarah, New South Wales, Australia, 2217

Actively Recruiting

81

The Prince Charles Hospital

Brisbane, Queensland, Australia, Australia

Actively Recruiting

82

Eastern Health Box Hill Hospital

Box Hill, Victoria, Australia, 3128

Actively Recruiting

83

Monash Health-Monash Medical Centre

Clayton, Victoria, Australia, 3168

Actively Recruiting

84

Austin Health

Heidelberg, Victoria, Australia, 3084

Actively Recruiting

85

Institute for Respiratory Health - Midland

Midland, Western Australia, Australia, 6056

Actively Recruiting

86

Institute for Respiratory Health

Nedlands, Western Australia, Australia, 6009

Actively Recruiting

87

AZORG

Aalst, Belgium, 9300

Actively Recruiting

88

ZAS Middelheim

Antwerp, Belgium, 2020

Actively Recruiting

89

CUB Hopital Erasmde

Brussels, Belgium, 1070

Actively Recruiting

90

Cliniques Universitaires St.-Luc

Brussels, Belgium, 1200

Actively Recruiting

91

UZ Leuven

Leuven, Belgium, 3000

Actively Recruiting

92

CHU de Liège

Liège, Belgium, 4000

Actively Recruiting

93

St.Paul's Hospital

Vancouver, British Columbia, Canada, V6Z 176

Actively Recruiting

94

Dynamic Drug Advancement Limited

Ajax, Ontario, Canada, L1S 2J5

Actively Recruiting

95

St.Joseph's Healthcare Hamilton

Hamilton, Ontario, Canada, L8N 4A6

Actively Recruiting

96

Hôpital Maisonneuve-Rosemont

Montreal, Quebec, Canada, H1T 2M4

Actively Recruiting

97

CIC Mauricie inc.

Québec, Quebec, Canada, G8T 7A1

Actively Recruiting

98

Diex Recherche Inc. - Division Sherbrooke Est

Sherbrooke, Quebec, Canada, J1E 0N8

Actively Recruiting

99

Centro de Investigacion Curico

Curicó, Maule Region, Chile, 3341643

Actively Recruiting

100

CEC Centro Estudios Clinicos

Santiago, Santiago Metropolitan, Chile, 7550495

Actively Recruiting

101

Fundacion Medica San Cristobal

Santiago, Santiago Metropolitan, Chile, 7630226

Actively Recruiting

102

Biocinetic Ltda.

Santiago, Santiago Metropolitan, Chile, 8320000

Actively Recruiting

103

Centro Respiratorio Integral LTDA. (CENRESIN)

Quillota, Valparaiso, Chile, 2260000

Actively Recruiting

104

Centro de Investigación de Enfermedades Respiratorias e Inmunológicas (CIERI)

Viña del Mar, Valparaiso, Chile, 2520000

Actively Recruiting

105

Hôpital Avicennes

Bobigny, France, 93000

Actively Recruiting

106

Hospices civils de Lyon - Hôpital Louis Pradel

Bron, France, 69500

Actively Recruiting

107

CHU Caen Normandie

Caen, France, 14000

Actively Recruiting

108

Assistance Publique Hôpitaux de Marseille - centre Hospitalier Régional de Marseille

Marseille, France

Actively Recruiting

109

Rouen University Hospital

Rouen, France, 7600

Actively Recruiting

110

Centre Hospitalier Régional Universitaire de Tours

Tours, France, Tours Cedex 9

Actively Recruiting

111

RoMed Klinikum Rosenheim-Ellmaierstr. 23

Rosenheim, Bavaria, Germany, 83022

Actively Recruiting

112

Zentralklinik Bad Berka GmbH Klinik für Pneumologie, Zentrum für Schlaf-und Beatmungsmedizin

Bad Berka, Germany, 99437

Actively Recruiting

113

Prufstelle der GWT am Fachkrankenhaus Coswig

Coswig, Germany, 01640

Actively Recruiting

114

uhrlandklinik Westdeutsches Lungenzentrum am Universitätsklinikum Essen gGmbH

Essen, Germany, 45239

Actively Recruiting

115

SLK Kliniken Heilbronn GmbH

Löwenstein, Germany, 74245

Actively Recruiting

116

LMU Klinikum Medizinische Klinik und Poliklinik V

München, Germany, 81377

Actively Recruiting

117

Barzilai Medical Center

Ashkelon, Israel, 7830604

Actively Recruiting

118

Hillel Yaffe Medical Center

Hadera, Israel, 3846201

Actively Recruiting

119

Rabin Medical Center

Haifa, Israel, 3436212

Actively Recruiting

120

Shaare Zedek Medical Center

Jerusalem, Israel, 9103102

Actively Recruiting

121

The Hadassah University Medical Center Ein Kerem Hospital

Jerusalem, Israel, 9112001

Actively Recruiting

122

Meir Medical Center

Kfar Saba, Israel, 4428164

Actively Recruiting

123

Rabin Medical Center

Petah Tikva, Israel, 4941492

Actively Recruiting

124

Kaplan Medical Center

Rehovot, Israel, 7551041

Actively Recruiting

125

Tel Aviv Sourasky Medical Center

Tel Aviv, Israel, 6423906

Actively Recruiting

126

Azienda Ospedaliero Universitaria Policlinico "G. Rodolico - San Marco" Presidio Ospedaliero Gaspare Rodolico

Catania, Italy, 95123

Actively Recruiting

127

Azienda Unita Sanitaria Locale Della Romagna Ospedale "Gian Battista Morgagni - Luigi Pierantoni" di Forlì

Forlì, Italy, 47121

Actively Recruiting

128

Azienda Ospedaliero-Universitaria di Modena Policlinico di Modena

Modena, Italy, 41124

Actively Recruiting

129

Fondazione Policlinico Universitario Agostino Gemelli IRCCS

Roma, Italy, 168

Actively Recruiting

130

Azienda Ospedaliero-Universitaria Senese

Siena, Italy, 53100

Actively Recruiting

131

Canterbury Respiratory Research Group

Christchurch, Canterbury, New Zealand, 8011

Actively Recruiting

132

Aotearoa Clinical Trials Trust- Middlemore Hospital

Auckland, New Zealand

Actively Recruiting

133

Waikato Hospital

Hamilton, New Zealand, 3204

Actively Recruiting

134

Hospital Nacional Adolfo Guevara Velasco

Cusco, Peru, 08002

Actively Recruiting

135

Clinica Internacional - Sede Lima

Lima, Peru, 15001

Actively Recruiting

136

Unidad de Investigacion de Enfermedades Respiratorias- Clinica San Pablo -Surco

Lima, Peru, 15023

Actively Recruiting

137

Clinica Ricardo Palma

Lima, Peru, 15036

Actively Recruiting

138

Hospital Central de la Fuerza Aerea del Peru

Lima, Peru, 15046

Actively Recruiting

139

Centro de Investigacion de Enfermedades Respiratorias - Clinica Providencia

Lima, Peru, 15088

Actively Recruiting

140

Gachon University Gil Medical Center

Incheon, South Korea, 21565

Actively Recruiting

141

Seoul National University Bundang Hospital

Seongnam-si, South Korea, 13620

Actively Recruiting

142

Korea University Anam Hospital

Seoul, South Korea, 02841

Actively Recruiting

143

Asan Medical Center

Seoul, South Korea, 05505

Actively Recruiting

144

The Catholic University of Korea, Eunpyeong St. Mary's Hospital

Seoul, South Korea, 3312

Actively Recruiting

145

Kaohsiung Medical University Chung-Ho Memorial Hospital

Kaohsiung City, Taiwan, 807

Actively Recruiting

146

Chang Gung Medical Foundation Kaohsiung Chang Gung Memorial Hospital

Kaohsiung City, Taiwan, 83301

Actively Recruiting

147

Taichung Veterans General Hospital

Taichung, Taiwan, 40705

Actively Recruiting

148

Birmingham Heartlands Hospital

Birmingham, United Kingdom

Actively Recruiting

149

Royal Papworth Hospital

Cambridge, United Kingdom, CB2 0AY

Actively Recruiting

150

NHS Lothian, Royal INfirmary of Edingburgh

Edinburgh, United Kingdom, EH16 4SA

Actively Recruiting

151

Guy's Hospital

London, United Kingdom, SE1 9RT

Actively Recruiting

152

Manchester University NHS Foundation Trust, North Manchester General Hospital

Manchester, United Kingdom, M8 5RB

Actively Recruiting

153

NHS Tayside, Perth Royal Infirmary

Perth, United Kingdom, PH1 1NX

Actively Recruiting

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Research Team

U

United Therapeutics Global Medical Information

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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