Promising IPF drug trial halted midway
NCT ID NCT05032066
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested an experimental drug called HZN-825 in people with idiopathic pulmonary fibrosis (IPF), a lung disease that causes scarring and makes breathing hard. The trial aimed to see if the drug could slow the decline in lung function over a year. About 153 adults with IPF were randomly assigned to receive one of two doses of HZN-825 or a placebo. The study was terminated early, so results are limited.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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153 people
The number who actually took part.
- Started
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Jan 2022
- Finished
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Jan 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria in Core Phase: 1. Male or female ≥18 years of age at Screening. 2. Current diagnosis of IPF, as defined by American Thoracic Society (ATS)/European Respiratory Society (ERS)/Japanese Respiratory Society (JRS)/Latin American Thoracic Society (ALAT) guidelines and determined by central review; the date of initial diagnosis of IPF should be ≤7 years prior to Screening. 3. No recent changes or planned changes to the dose or regimen for IPF therapy, defined as: * Receiving a stable dose of IPF-approved therapy (i.e., nintedanib or pirfenidone) for a minimum of 3 months prior to Day 1 with no plans to change the background regimen during trial participation, or * Not currently receiving background IPF-approved therapy at Screening (either naïve to IPF-approved therapy or previously discontinued any IPF-approved therapy at least 4 weeks prior to Day 1 or drug-specific, 5 half-lives elimination period if longer than 4 weeks), and with no current plans to restart treatment during trial participation * Participants receiving any additional agent for IPF therapy must be on a stable regimen for at least 3 months prior to Day 1 with no current plans to change the treatment regimen during trial participation. Any previously discontinued therapy used to treat IPF must have been discontinued at least 4 weeks prior to Day 1 or 5 half-lives for that specific therapy must have elapsed, whichever is longer, with no plans to restart the therapy during trial participation. 4. Lung high-resolution computed tomography (HRCT) historically performed within 6 months prior to the Screening Visit and according to the minimum requirements for IPF diagnosis by central review based on participant's HRCT. If an evaluable HRCT is not available within 6 months prior to Screening, an HRCT will be performed at Screening to determine eligibility, according to the same requirements as the historical HRCT. 5. HRCT shows ≥10% to \<50% parenchymal fibrosis (reticulation) and the extent of fibrotic changes is greater than the extent of emphysema on the most recent HRCT scan (central reviewer determined). 6. Meets all of the following criteria during the Screening Period: 1. FVC ≥45% predicted of normal 2. forced expiratory volume in 1 second (FEV1)/FVC ≥0.7 3. Diffusing capacity of the lungs for carbon monoxide (DLCO) corrected for hemoglobin is ≥25% and ≤90% predicted of normal 7. Estimated minimum life expectancy of ≥30 months for non-IPF-related disease, in the opinion of the Investigator. 8. Vaccinations are up to date given age, comorbidities and local availability prior to trial drug dosing. 9. Willing and able to comply with the prescribed treatment protocol and evaluations for the duration of the trial. Key Inclusion Criteria in Extension Phase: 1. Completed the Double-blind Treatment Period (Week 52) of the Core Phase of the trial; subjects prematurely discontinued from trial drug in the Core Phase of the trial for reasons other than safety or tolerability may be included at the discretion of the Investigator after completing scheduled visits, including Week 52 assessments. 2. Willing and able to comply with the prescribed treatment protocol and evaluations for the duration of the Extension Phase of the trial. Key Exclusion Criteria Core Phase: 1. Any of the following cardiovascular diseases: 1. uncontrolled, severe hypertension (≥160/100 mmHg), within 6 months of Screening 2. myocardial infarction within 6 months of Screening 3. unstable cardiac angina within 6 months of Screening 2. Interstitial lung disease (ILD) associated with known primary diseases (e.g., sarcoidosis, amyloidosis and coronavirus disease 2019 \[COVID-19\]), connective tissue disorders (e.g., rheumatoid arthritis, systemic lupus erythematosus, Sjogren's, dermatomyositis, scleroderma), exposures (e.g., radiation, silica, asbestos and coal dust) or drugs (e.g., amiodarone). 3. Known active bacterial, viral, fungal, mycobacterial or other infection, including tuberculosis or atypical mycobacterial disease (fungal infections of nail beds are allowed). The participant must be 3 months beyond any acute infection with COVID-19 if there has been a prior infection. 4. Clinically significant pulmonary hypertension requiring chronic medical therapy. 5. Use of any of the following therapies within 4 weeks prior to Screening, during the Screening Period or planned during the trial: prednisone at steady dose \>10 mg/day or equivalent or cyclosporine. Change in regimen or dosage of any immunosuppressant during the Screening Period through the end of trial participation will require consultation with and approval by the trial Medical Monitor. 6. Use of rifampin within 2 weeks prior to Day 1 or planned during the trial. 7. Malignant condition in the past 5 years (except successfully treated basal/squamous cell carcinoma of the skin or cervical cancer in situ). 8. Women of childbearing potential (WOCBP) or male subjects not agreeing to use highly effective method(s) of birth control throughout the trial and for 4 weeks after last dose of trial drug. Females must refrain from egg/ova donation for 4 weeks after the last dose of trial drug and males must refrain from sperm donation for 3 months after the last dose of trial drug. 9. Pregnant or lactating women and women who plan to become pregnant or breast feed during the trial and within 4 weeks after the last dose of trial drug. 10. Current drug or alcohol abuse or history of either within the previous 2 years, in the opinion of the Investigator or as reported by the subject. 11. Previous enrollment in this trial or participation in a prior HZN-825 or SAR100842 clinical trial. 12. Known history of positive test for human immunodeficiency virus (HIV). 13. Active hepatitis (hepatitis B: positive hepatitis B surface antigen and positive anti-hepatitis B core antibody \[anti-HBcAb\] and negative hepatitis B surface antibody \[HBsAb\] or positive for HBcAb with a positive test for HBsAb and with presence of hepatitis B virus DNA at Screening; hepatitis C: positive anti-hepatitis C virus \[anti-HCV\] and positive RNA HCV). 14. Current alcoholic liver disease, primary biliary cirrhosis or primary sclerosing cholangitis. 15. Previous organ transplant (including allogeneic and autologous marrow transplant). 16. International normalized ratio \>2, prolonged prothrombin time \>1.5 × the upper limit of normal (ULN) or partial thromboplastin time \>1.5 × ULN at Screening. 17. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \>2.0 × ULN. 18. Estimated glomerular filtration rate \<30 mL/min/1.73 m\^2 at Screening. 19. Total bilirubin \>1.5 × ULN. Subjects with documented diagnosis of Gilbert's syndrome may be enrolled if their total bilirubin is ≤3.0 mg/dL. 20. Moderate (Child-Pugh B) to severe (Child-Pugh C) hepatic impairment according to the Child-Pugh scoring system. 21. Any confirmed Grade 3 or higher laboratory abnormality. 22. Any laboratory abnormality at Screening that, in the opinion of the Investigator, would preclude the participant's entry in the trial. 23. Exposure to an experimental drug (with the exception of HZN-825) or experimental vaccine within either 30 days, 5 half-lives of the test agent, or twice the duration of the biological effect of the test agent, whichever is the longest, prior to Day 1. 24. Any other condition that, in the opinion of the Investigator, would preclude enrollment in the trial. Key Exclusion Criteria Extension Phase: 1. Anticipated use of another investigational agent for any condition during the course of the trial. 2. New diagnosis of malignant condition after enrolling in Trial HZNP-HZN-825-303 (except successfully treated basal/squamous cell carcinoma of the skin or cervical cancer in situ). 3. Estimated minimum life expectancy ≤18 months, in the opinion of the Investigator.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Asan Medical Center-PPDS
Seoul, 05505, South Korea
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Athens Medical Center
Marousi, Attica, 151 25, Greece
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Azienda Ospedaliera Universitaria Senese
Siena, 53100, Italy
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Box Hill Hospital
Box Hill, Victoria, 3128, Australia
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CICUM San Miguel
Guadalajara, Jalisco, 44160, Mexico
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Central Florida Pulmonary Group PA
Orlando, Florida, 32803, United States
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Centro Medico Dra de Salvo
Ciudad de Buenos Aires, C1426ABP, Argentina
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Centro Respiratorio Integral LTDA. (CENRESIN)
Quillota, Valparaiso, 2260000, Chile
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Centro de Investigacion del Maule
Talca, 3465586, Chile
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Centro de Investigación Curico
Curicó, Maule Region, 3440000, Chile
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China Medical University Hospital - PPDS
Taichung, 404, Taiwan
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Clinical Research Chile SpA
Valdivia, 8330033, Chile
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Clinical Research of Gastonia
Gastonia, North Carolina, 28054, United States
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Clinical Research of Rock Hill
Rock Hill, South Carolina, 29732, United States
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Clinical Trials Center of Middle Tennessee
Franklin, Tennessee, 37067, United States
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Connolly Hospital Blanchardstown
Liverpool, L9 7AL, United Kingdom
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DBC Research Corp.
Tamarac, Florida, 33321, United States
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Dartmouth Hitchcock Medical Center
Lebanon, New Hampshire, 03756-1000, United States
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Dr. Ismail Abdullah Private Practice
Cape Town, Western Cape, 7764, South Africa
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Dynamic Drug Advancement Ltd.
Ajax, Ontario, L1S 2J5, Canada
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El Paso Pulmonary Association - Elligo
El Paso, Texas, 79902-1124, United States
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Enroll SpA
Providencia, Región-MetropolitanadeSantiago, 7500587, Chile
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Erasmus MC
Rotterdam, 3015 GD, Netherlands
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Evangelismos General Hospital of Athens
Athens, Attica, 10676, Greece
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Far Eastern Memorial Hospital
Taipei, 220, Taiwan
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GCP Clinical Research
Tampa, Florida, 33609, United States
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Hiroshima Prefectural Hospital
Hiroshima, 734-0004, Japan
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Hopital Haut Leveque
Pessac, Gironde, 33604, France
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Hopital Nord AP-HM
Marseille, Bouches-du-Rhône, 13915, France
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Hospital Universitario 12 de Octubre
Madrid, 28041, Spain
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Hospital Universitario Dr. Jose Eleuterio González
Monterrey, Nuevo León, 64460, Mexico
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Hospital Universitario Quironsalud Madrid
Pozuelo de Alarcón, Madrid, 28223, Spain
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Hospital Universitario de Bellvitge
L'Hospitalet de Llobregat, Barcelona, 08907, Spain
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Hôpital Bretonneau
Tours, Indre-et-Loire, 37044, France
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Instituto Ave Pulmo
Mar del Plata, Buenos Aires, 7600, Argentina
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Instituto De Enfermedades Respiratorias E Investigacion Medica
San Juan Bautista, Buenos Aires, 1888, Argentina
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Instituto De Patologías Respiratorias
San Miguel de Tucumán, Tucumán Province, 4000, Argentina
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Instituto Del Buen Aire
Santa Fe, 3000, Argentina
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Kanagawa Cardiovascular and Respiratory Center
Yokohama, Kanagawa, 235-0041, Japan
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Kaohsiung Medical University - Chung-Ho Memorial Hospital
Kaohsiung City, 807, Taiwan
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Kocaeli University Hospital
Kocaeli, 41380, Turkey (Türkiye)
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Korea University Anam Hospital
Seoul, 02841, South Korea
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KwaPhila Health Solutions
Durban, KwaZulu-Natal, 4091, South Africa
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Lungenklinik Hemer
Hemer, North Rhine-Westphalia, 58675, Germany
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MCM Krakow - PRATIA - PPDS
Krakow, 30-510, Poland
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MIRES/MYF estudios cli-nicos
Ñuñoa, Región-MetropolitanadeSantiago, 7750495, Chile
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Medical Hospital of Tokyo Medical and Dental University
Tokyo, 113-8519, Japan
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Meditek Ltda
Santiago, Región-MetropolitanadeSantiago, 8330008, Chile
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Metroplex Pulmonary and Sleep Medicine Center
McKinney, Texas, 75069, United States
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National Hospital Organization Himeji Medical Center
Himeji-Shi, Hyôgo, 670-8520, Japan
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National Hospital Organization Ibarakihigashi National Hospital
Naka-Gun, Ibaraki, 319-1113, Japan
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National Hospital Organization Kinki-Chuo Chest Medical Center
Sakaishi, Ôsaka, 591-8025, Japan
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Nebraska Pulmonary Specialties LLC
Lincoln, Nebraska, 68510, United States
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Northwestern Memorial Hospital
Milwaukee, Wisconsin, 53226-3522, United States
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Oaxaca Site management Organization (OSMO)
Centro, Oaxaca, 68000, Mexico
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PULMAG Grzegorz Gasior Marzena Kociolek Spolka Cywilna
Katowice, Silesian Voivodeship, 40-752, Poland
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Palmtree Clinical Research
Palm Springs, California, 92262, United States
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Presidio Ospedaliero GB Morgagni L Pierantoni
Forlì, Emilia-Romagna, 47121, Italy
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Royal Adelaide Hospital
Adelaide, South Australia, 5000, Australia
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STAT Research S.A.
Ciudad Autónoma de Buenos Aires, Buenos Aires, C1013AAB, Argentina
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Samsung Medical Center
Seoul, South Korea
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Seoul National University Bundang Hospital
Seongnam-si, Gyeonggido, 13620, South Korea
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Shelby Clinical Research
Shelby, North Carolina, 28150, United States
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Southeastern Research Center
Winston-Salem, North Carolina, 27103, United States
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St. Francis Medical Institute
Clearwater, Florida, 33765, United States
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St. Joseph's Healthcare Hamilton
Hamilton, Ontario, L8N 4A6, Canada
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Stony Brook Medicine Advanced Specialty Care
Commack, New York, 11725, United States
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Taipei Veterans General Hospital
Taipei, Taiwan
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Temple University Hospital
Philadelphia, Pennsylvania, 19140-5103, United States
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The Cleveland Clinic Foundation
Cleveland, Ohio, 44195, United States
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Thomas Jefferson University
Philadelphia, Pennsylvania, 19107, United States
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Unidad de Investigación Clínica En Medicina SC
Monterrey, Nuevo León, 64718, Mexico
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Universidad de Los Andes
Las Condes, Región-MetropolitanadeSantiago, 7550000, Chile
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University General Hospital of Heraklion
Heraklion, 711 10, Greece
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University General Hospital of Ioannina
Ioannina, 455 00, Greece
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University General Hospital of Larissa
Larissa, 411 10, Greece
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University General Hospital of Patras
Pátrai, Achaïa, 265 04, Greece
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University of Alabama at Birmingham
Birmingham, Alabama, 35233, United States
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University of Cape Town Lung Institute (UCTLI)
Cape Town, Western Cape, 7700, South Africa
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University of Kansas Medical Center
Kansas City, Kansas, 66160, United States
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Uniwersyteckie Centrum Kliniczne
Gdansk, Pomeranian Voivodeship, Poland
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Vanderbilt University Medical Center
Nashville, Tennessee, 37204, United States
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