Pulmonary FibrosisPhase 2NCT06329401
A Study Evaluating the Safety and Efficacy of Inhaled AP01 in Participants With Progressive Pulmonary Fibrosis
A Phase 2 study testing AP01 in people with Pulmonary Fibrosis and Progressive Pulmonary Fibrosis, run by Avalyn Pharma Inc. at 154 sites in 14 countries.
Trial summary
A randomized, double-blind, placebo-controlled clinical study to evaluate the safety and efficacy of 2 doses of inhaled pirfenidone (AP01) versus placebo on top of standard of care in participants with PPF over 52 weeks. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Pulmonary Fibrosis, Progressive Pulmonary Fibrosis, Pulmonary Fibrosis Secondary to Systemic Sclerosis
- What is being tested?
- AP01
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 398 participants
- Where
- 154 sitesin 14 countries
- Study dates
- 3 Apr 2024to Jun 2027
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Participant meets criteria for PPF, as follows:
- In subjects with interstitial lung disease (ILD) of known or unknown etiology other than idiopathic pulmonary fibrosis (IPF) who have radiological evidence of pulmonary fibrosis, PPF is defined as:
- Physiological evidence of disease progression with at least 1 of the following criteria despite treatment with approved or unapproved medications commonly used in practice (per Investigator):
- Relative decline in FVC ≥10% predicted within the previous 24 months based on documented historical spirometry assessments
- Relative decline in FVC ≥5% to <10% predicted within the previous 24 months based on documented historical spirometry assessments with at least 1 of the 2 following criteria:
- Worsening respiratory symptoms (Note: Changes attributable to comorbidities e.g., infection, heart failure must be excluded) OR
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- Radiological (HRCT) evidence of disease progression per a local or central radiologist (from historical HRCT taken up to 24 months prior to Screening Visit 1), for example:
- Increased extent or severity of traction bronchiectasis and bronchiolectasis
- New ground-glass opacity with traction bronchiectasis
- New fine reticulation
- Increased extent or increased coarseness of reticular abnormality
- New or increased honeycombing
- Increased lobar volume loss
- Worsening of respiratory symptoms (Note: Changes attributable to comorbidities e.g., infection, heart failure must be excluded) AND radiological (HRCT) evidence of disease progression per a local or central radiologist
- Meeting all of the following criteria during the Screening Period:
- FVC ≥45% of predicted normal at Screening Visit 1, b. Forced expiratory volume at 1 second (FEV1)/FVC ≥0.7 or ≥age-adjusted lower limit of normal at Screening Visit 1, c. Diffusing capacity of lung for carbon monoxide (DLCO) ≥30% of predicted, corrected for hemoglobin at Screening Visit 1, d. Acceptability: Participants can perform acceptable spirometry (i.e., meet American Thoracic Society (ATS)/ European Respiratory Society (ERS) acceptability criteria at both Screening Visits).
- For subjects already on background therapy (nintedanib or nerandomilast 18 mg twice daily [up to 30% of subjects]): Must have been on background therapy for at least 12 weeks prior to Screening with or without dose adjustments and/or drug interruptions during that period. For subjects who have discontinued background therapy prior to Screening: Must have been off for a minimum of 12 weeks.
Who cannot join
- Current treatment with oral pirfenidone or nerandomilast 9 mg twice daily dose or treatment with oral pirfenidone within 3 months prior to Screening.
- Elevated liver enzymes and liver injury at Screening defined as:
- Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ˃ 3 times the upper limit of normal (ULN)
- Bilirubin >2.0 x ULN
- Renal disease with a creatinine clearance < 30 mL/min, calculated according to the Chronic Kidney Disease Epidemiology Collaboration formula. Retesting is allowed once.
- Diagnosis of idiopathic pulmonary fibrosis (IPF) based on the ATS diagnostic algorithm for IPF. UIP that is not idiopathic, for example related to rheumatoid arthritis (RA), familial interstitial lung disease (ILD), or other is not exclusionary.
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- Greater extent of emphysema than of fibrotic ILD on HRCT. Note: CT results must be confirmed through the central over read process.
- Significant clinical worsening of PPF between Screening Visit 1 and Visit 3
- Participants who cannot meet protocol-specified Baseline stability criteria. FVC Baseline stability is defined as the FVC assessments at Visit 3 being within ±12% of the mean of the FVC assessments obtained at the 2 preceding visits. At Visit 3, if the pre-dose FVC is outside of ±12% range, the participant will not be randomized and will be considered a screen failure.
Trial locations and contacts
154 sites in 14 countries.
154 sites in 14 countries
United States61 sites
University of Michigan
Ann Arbor, Michigan, 48109
Piedmont Healthcare, Inc.
Atlanta, Georgia, 30309
University of Colorado, Anschutz Medical Campus
Aurora, Colorado, 80045
University of Maryland
Baltimore, Maryland, 21201
Johns Hopkins University
Baltimore, Maryland, 21224
The Oregon Clinic Pulmonary West
Beaverton, Oregon, 97008
Summit Health
Bend, Oregon, 97701
University of Alabama at Birmingham
Birmingham, Alabama, 35205
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215
Lowcountry Lung and Critical Care
Charleston, South Carolina, 29406
Medical University of South Carolina
Charleston, South Carolina, 29425
Northwestern University
Chicago, Illinois, 60611
University of Cincinnati
Cincinnati, Ohio, 45267
Cleveland Clinic
Cleveland, Ohio, 44195
Baylor Scott & White Research Institute, Baylor University Medical Center
Dallas, Texas, 75246
UT Southwestern Medical Center
Dallas, Texas, 75390
National Jewish Health
Denver, Colorado, 80206
Duke University
Durham, North Carolina, 27710
El Paso Pulmonary Association
El Paso, Texas, 79902
Endeavor Health
Evanston, Illinois, 60201
Inova Healthcare
Falls Church, Virginia, 22042
UCONN Health
Farmington, Connecticut, 06030
Clinical Trials Center of Middle Tennessee
Franklin, Tennessee, 37067
Hannibal Regional Healthcare System
Hannibal, Missouri, 63401
The Pennsylvania State University
Hershey, Pennsylvania, 17033
Baylor College of Medicine
Houston, Texas, 77030
The University of Texas Health Science Center
Houston, Texas, 77030
The University of Kansas Medical Center
Kansas City, Kansas, 66160
Clinical Site Partners, LCC
Leesburg, Florida, 34748
University of Southern California
Los Angeles, California, 90033
Cedars-Sinai
Los Angeles, California, 90048
UCLA
Los Angeles, California, 90095
Loyola University Medical Center
Maywood, Illinois, 60153
Metroplex Pulmonary and Sleep Center, PA
McKinney, Texas, 75069
University of Minnesota
Minneapolis, Minnesota, 55455
Northern Westchester Hospital
Mount Kisco, New York, 10549
Northwell Health - Mount Kisco
Mount Kisco, New York, 10549
Intermountain Medical Center
Murray, Utah, 84157
Vanderbilt Lung Institute
Nashville, Tennessee, 37204
Yale University
New Haven, Connecticut, 06519
NYU Langone Health
New York, New York, 10017
Weill Cornell
New York, New York, 10021
Icahn School of Medicine at Mount Sinai
New York, New York, 10029
Columbia University
New York, New York, 10032
Newport Native MD, Inc.
Newport Beach, California, 92663
Renstar Medical Research
Ocala, Florida, 34470
Thomas Jefferson University
Philadelphia, Pennsylvania, 19107
Temple University
Philadelphia, Pennsylvania, 19140
The Oregon Clinic Pulmonary East
Portland, Oregon, 97220
The Oregon Clinic Pulmonary West
Portland, Oregon, 97225
Paradigm Clinical Research - Redding
Redding, California, 96001
Mayo Clinic Rochester
Rochester, Minnesota, 55905
University of Utah Health
Salt Lake City, Utah, 84108
University of California - San Francisco
San Francisco, California, 94143
Mayo Clinic- Scottsdale
Scottsdale, Arizona, 85259
University of Washington
Seattle, Washington, 98195
Piedmont HealthCare, PA
Statesville, North Carolina, 28625
Montefiore Medical Center
The Bronx, New York, 10467
Accellacare
Wilmington, North Carolina, 28401
Southeastern Research Center
Winston-Salem, North Carolina, 27103
Clinical Site Partners
Winter Park, Florida, 32789
United Kingdom15 sites
Birmingham Heartlands Hospital
Birmingham, Heartlands, B95SS
ILD Unit, University Hospitals Birmingham NHS Foundation Trust Theme
Birmingham, Midlands, B15 2GW
Royal Papworth Hospital
Cambridge, CB2 0BB
Hull University Teaching Hospital NHS Trust
Cottingham, East Yorkshire, HU16 5JQ
Royal Devon
Exeter, South West, EX2 5DW
Leicester Biomedical Research Centre - Respiratory Theme
Glenfield, Leicester, LE3 9QP
St James University Hospital - LTHT
Leeds, West Yorkshire, LS9 7TF
St George's University Hospitals NHS Foundation Trust
London, London, sw17 0QT
Royal Brompton Hospital
London, SW3 6HP
C-TRIC Altnagelvin Hospital
Londonderry, Northern Ireland, BT46
Manchester University NHS Foundation Trust
Manchester, M23 9LT
Nottingham University NHS Trust
Nottingham, NG5 1PB
Oxford University Hospitals NHS Foundation Trust
Oxford, Oxon, OX3 7LE
University Hospitals of North Midlands NHS Trust, Royal Stoke University Hospital
Stoke-on-Trent, ST4 6QG
The Royal Wolverhampton NHS Trust, New Cross Hospital, Research and Development
Wolverhampton, West Midlands, WV10 0QP
Australia10 sites
Wallace Street Specialist Centre/Lung Research QLD Pty Ltd
Brisbane, Queensland, 4032
Royal Prince Alfred Hospital
Camperdown, New South Wales, 2050
Canberra Hospital
Canberra, 2605
Lung Research Victoria
Footscray, Victoria, 3011
Nepean Lung & Sleep
Kingswood, New South Wales, 2745
Alfred Health
Melbourne, Victoria, 3004
Institute for Respiratory Health
Nedlands, Perth West Australia, 6009
John Hunter Hospital
New Lambton, New South Wales, 2305
Macquarie University Clinical Trials Unit
Sydney, New South Wales, 2109
Westmead Hospital
Westmead, New South Wales, 2145
Spain10 sites
Hospital de Sant Pau y la Santa Creu
Barcelona, Barcelona, 08025
Hospital Universitary de Bellvitge
Barcelona, 08908
Hospital Universitario Puerta del Mar - Leon-Jimenez
Cadiz, 11009
Hospital Universitario Virgen de las Nieves
Granada, Andalusia, 18014
Hospital Gregorio Marañon
Madrid, Madrid, 28007
Hospital Universitario Ramon y Cajal
Madrid, Madrid, 28034
Hospital Universitario Virgen de la Victoria
Málaga, Málaga, 29010
Hospital Universitario Central de Asturias
Oviedo, Principality of Asturias, 33011
Hospital Universitario Marqués de Valdecilla
Santander, Cantabria, 39008
Hospital Universitario Virgen del Rocío
Seville, Sevilla, 41013
Argentina9 sites
Fundacion Respirar
Buenos Aires, Buenos Aires, 1427
CINME
Buenos Aires, Buenos Aires, C1056AB
Hospital Italiano de Buenos Aires
Ciudad Autónoma de Buenos Aires, Buenos Aires, C1199ABH
Instituto de Medicina Respiratoria
Córdoba, Córdoba Province, 5003
Instituto Ave Pulmo, Fundacion Enfisema
Mar del Plata, Buenos Aires, 7600
Clinica Monte Grande
Monte Grande, Buenos Aires, 1842
Centro Respiratorio Quilmes
Quilmes, Buenos Aires, B1878
CIMER Centro Integral de Medicina Respiratoria
San Miguel de Tucumán, Tucumán Province, 4000
Investigaciones En Patologias Respiratorias
San Miguel de Tucumán, Tucumán Province, 4000
France9 sites
CHU Angers
Angers, 49933
APHP - Hopital Bicetre
Le Kremlin-Bicêtre, 94270
Louis Pradel Hospital
Lyon, Lyon, 69677
Robert Schuman Hospital UNEOS
Metz, Lorraine, 57000
University of Montpellier
Montpellier, Montpellier, 34295
Hôpital Paris St Jozeph
Paris, 75014
Hôpital Haut-Lévêque
Pessac, 33604
CHU de Rennes
Rennes, Cedex NA, 35033
CHU Tours
Tours, Indre et Loire, 37000
Germany9 sites
Vivantes Klinikum Neukölln - Klinik für Innere Medizin - Pneumologie und Infektiologie
Berlin, State of Berlin, 12351
Ruhrlandklinik Essen, Klinik fuer Pneumologie
Essen, North Rhine-Westphalia, 45239
Studienzentrum Dr. Claus Keller
Frankfurt, Main Hessia, 60389
Medizinische Hochschule Hannover
Hanover, Lower Saxony, 30625
Uniklinikum Leipzig Medizinische Klinik II - Bereich
Leipzig, Saxony, 04103
Universitätsmedizin Mainz - Zentrum für Thoraxerkrankungen
Mainz, Rhineland-Palatinate, 55131
Muenchen Klinik Bogenhausen - Klinik für Pneumologie und Pneumologische Onkologie
München, Bavaria, 81925
Pneumologisches Studienzentrum München-West
Munich, Bavaria, 81241
RoMed Klinikum Rosenheim
Rosenheim, Bavaria, 83022
Italy9 sites
IRCCS AOU di Bologna - Policlinico Sant' Orsola
Bologna, Emilia-Romagna, 40138
A.O.U. Policlinico G. Rodolico
Catania, Sicily, 95123
Ospedale San Giuseppe
Milan, Milano, 20123
Azienda Ospedaliera dei Colli - Ospedale Monaldi
Naples, Campania, 80131
Università degli Studi di Napoli Federico II - Ospedale Monaldi
Naples, Campania, 80131
Fondazione IRCCS Policlinico San Matteo - UOC Pneumologia
Pavia, Lombardy, 27100
HUMANITAS Research Hospital
Rozzano, Milano, 20089
A.O.U. delle Marche - Ospedale di Torrette
Torrette, Ancona, 60126
Azienda Sanitaria Universitaria Giuliano Isontina
Venezia, Giulia, 34149
Canada6 sites
Dynamic Drug Advancement
Ajax, Ontario, L1S2J5
St. Joseph's Healthcare Hamilton
Hamilton, Ontario, L8N 4A6
Research Institute McGill University Health Center
Montreal, Quebec, H4A 3J1
Institut universitaire de cardiologie et de pneumologie de Québec-Université Laval
Québec, Quebec, G1V4G5
CIC Mauricie
Trois-Rivières, Quebec, G8T7A1
Vancouver General Hospital
Vancouver, British Columbia, V5Z1M9
Poland5 sites
Vitamed Galaj I Cichomski sp.j.
Bydgoszcz, Bydgoszc, 85-079
University Hospital in Krakow
Krakow, Krakow, 30-688
Department of Pneumology of the University Hospital No 1
Lodz, 90-153
PRYWATNY GABINET LEKARSKI GINEKOLOGIA I POŁOZNICTWO ULTRASONOGRAFIA Prof. Dr hab. Med. Jacek Suzin
Lodz, 90-602
AppleTreeClinics Network
Lodz, Łódź Voivodeship, 90-349
New Zealand4 sites
Greenlane Clinical Centre
Auckland, Auckland, 1051
Health New Zealand
Christchurch, Canterbury, 8011
Dunedin Hospital
Dunedin, Dunedine, 9016
Bay of Plenty Clinical School
Tauranga, South Tauranga, 3112
Turkey (Türkiye)3 sites
Cukurova University Medical Faculty
Adana, 01240
Health Sciences University, Gulhane Faculty of Medicine
Ankara, 06010
Ege University Medical Faculty Hospital
Bornova, İzmir, 35100
Netherlands2 sites
St Antoniusziekenhuis
Nieuwegein, Utrecht, 3435
Erasmus University Medical Center
Rotterdam, 3015 GD
About this study
Official title: A Randomized, Double-Blind, Placebo-Controlled, Phase 2b Study Evaluating the Safety and Efficacy of Pirfenidone Solution for Inhalation (AP01) in Participants With PPF
A randomized, double-blind, placebo-controlled clinical study to evaluate the safety and efficacy of 2 doses of inhaled pirfenidone (AP01) versus placebo on top of standard of care in participants with PPF over 52 weeks.
Read the detailed description
This is a randomized, double-blind, placebo-controlled clinical study to evaluate the safety and efficacy of 2 doses of AP01 (pirfenidone solution for inhalation) versus placebo on top of standard of care in participants with PPF over 52 weeks. Up to 300 eligible participants will be randomized to 1 of 3 treatment arms: AP01 high dose, AP01 low dose, or placebo.
- Conditions
- Pulmonary Fibrosis, Progressive Pulmonary Fibrosis, Pulmonary Fibrosis Secondary to Systemic Sclerosis, Pulmonary Fibrosis, Interstitial Lung Disease, Interstitial Lung Disease, Interstitial Lung Disease Due to Connective Tissue Disease (Disorder)
- Being tested
- AP01, Placebo
- Keywords
- Chronic-Fibrosing-ILD with progressive phenotype, PF-ILD
- Medical subject headings
- Pulmonary Fibrosis, Lung Diseases, Interstitial, Alveolitis, Extrinsic Allergic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AP01Drug
Also called Pirfenidone Solution
Oral inhalation solution
PlaceboOther
Placebo oral inhalation solution
| Study group | Role | What they receive |
|---|---|---|
| AP01 High Dose BID | Experimental | Pirfenidone Solution for Inhalation Receives: Drug: AP01 |
| AP01 Low Dose BID | Experimental | Pirfenidone Solution for Inhalation Receives: Drug: AP01 |
| Placebo BID | Placebo comparator | Placebo solution for inhalation Receives: Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
To evaluate the effect of AP01 high dose twice a day (BID) or AP01 low dose twice a day (BID) compared to placebo twice a day (BID)
Change from baseline in forced vital capacity (FVC) (mL)
Measured: Week 52
Secondary outcomes (3)
To evaluate the effect of AP01 high dose and AP01 low dose compared to placebo on disease progression (defined as absolute FVC percent predicted decline of ≥10% prior to Week 52)
Time to disease progression
Measured: 52 weeks
To evaluate the effect of AP01 high dose, AP01 low dose compared to placebo on quality of life (QoL)
Absolute change from Baseline in QoL measurements as assessed by Living with Pulmonary Fibrosis Symptoms and Impact Questionnaire (L-PF) total score. The L-PF is a 44-item questionnaire to assess how impacted a participant is by disease symptoms on a scale from 0 (Not at all) to 4 (Extremely). The higher the summary score, the greater the impairment.
Measured: 52 weeks
To evaluate the change from baseline in quantitative lung fibrosis score.
Change in lung fibrosis score.
Measured: 52 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Mar 2024
- Study start3 Apr 2024
- Primary completionJun 2027 (estimated)
- Study completionJun 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Pulmonary FibrosisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 398 participants (actual)
Sponsor and investigators
- Lead sponsor
- Avalyn Pharma Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- DevPro Biopharma
- Responsible party
- Sponsor
- Investigators
- Avalyn Pharma, Inc., Study director, Avalyn Pharma Inc.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06329401
- Sponsor's protocol ID
- AP01-007
- Status last verified
- Jun 2026
- First submitted
- 12 Mar 2024
- Last updated
- 16 Oct 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
West A, Chaudhuri N, Barczyk A, Wilsher ML, Hopkins P, Glaspole I, Corte TJ, Sterclova M, Veale A, Jassem E, Wijsenbeek MS, Grainge C, Piotrowski W, Raghu G, Shaffer ML, Nair D, Freeman L, Otto K, Montgomery AB. Inhaled pirfenidone solution (AP01) for IPF: a randomised, open-label, dose-response trial. Thorax. 2023 Sep;78(9):882-889. doi: 10.1136/thorax-2022-219391. Epub 2023 Mar 22.
PubMed 36948586Kolb M, Corte TJ, Feldman J, Nathan SD, Reisner C, Nair D, Woodhead F, Lazarus H, Conoscenti C. Design of the MIST study: a double-blind, randomised, placebo-controlled phase 2b trial of pirfenidone solution for inhalation in patients with progressive pulmonary fibrosis. BMJ Open Respir Res. 2025 Dec 25;12(1):e003059. doi: 10.1136/bmjresp-2024-003059.
PubMed 41448793
Study at a glance
From the registry record, last updated by the sponsor on 16 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Double-Blind, Placebo-Controlled, Phase 2b Study Evaluating the Safety and Efficacy of Pirfenidone Solution for Inhalation (AP01) in Participants With PPF
- ClinicalTrials.gov ID
- NCT06329401
- Acronym / sponsor ID
- AP01-007
- Conditions
- Pulmonary Fibrosis, Progressive Pulmonary Fibrosis, Pulmonary Fibrosis Secondary to Systemic Sclerosis, Pulmonary Fibrosis, Interstitial Lung Disease, Interstitial Lung Disease, Interstitial Lung Disease Due to Connective Tissue Disease (Disorder)
- Keywords
- Chronic-Fibrosing-ILD with progressive phenotype, PF-ILD
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 398 participants (actual)
- Lead sponsor
- Avalyn Pharma Inc.Industry (pharma, biotech, devices)
- Collaborators
- DevPro Biopharma
- Study start
- 3 Apr 2024 (actual)
- Primary completion
- Jun 2027 (estimated)
- Study completion
- Jun 2027 (estimated)
- First posted
- 25 Mar 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
A randomized, double-blind, placebo-controlled clinical study to evaluate the safety and efficacy of 2 doses of inhaled pirfenidone (AP01) versus placebo on top of standard of care in participants with PPF over 52 weeks.
Detailed description
This is a randomized, double-blind, placebo-controlled clinical study to evaluate the safety and efficacy of 2 doses of AP01 (pirfenidone solution for inhalation) versus placebo on top of standard of care in participants with PPF over 52 weeks. Up to 300 eligible participants will be randomized to 1 of 3 treatment arms: AP01 high dose, AP01 low dose, or placebo.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| AP01 High Dose BID | Experimental | Drug: AP01Pirfenidone Solution for Inhalation |
| AP01 Low Dose BID | Experimental | Drug: AP01Pirfenidone Solution for Inhalation |
| Placebo BID | Placebo comparator | Other: PlaceboPlacebo solution for inhalation |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (17 listed)
- Participant meets criteria for PPF, as follows:
- In subjects with interstitial lung disease (ILD) of known or unknown etiology other than idiopathic pulmonary fibrosis (IPF) who have radiological evidence of pulmonary fibrosis, PPF is defined as:
- Physiological evidence of disease progression with at least 1 of the following criteria despite treatment with approved or unapproved medications commonly used in practice (per Investigator):
- Relative decline in FVC ≥10% predicted within the previous 24 months based on documented historical spirometry assessments
- Relative decline in FVC ≥5% to <10% predicted within the previous 24 months based on documented historical spirometry assessments with at least 1 of the 2 following criteria:
Key exclusion criteria (9 listed)
- Current treatment with oral pirfenidone or nerandomilast 9 mg twice daily dose or treatment with oral pirfenidone within 3 months prior to Screening.
- Elevated liver enzymes and liver injury at Screening defined as:
- Renal disease with a creatinine clearance < 30 mL/min, calculated according to the Chronic Kidney Disease Epidemiology Collaboration formula. Retesting is allowed once.
- Diagnosis of idiopathic pulmonary fibrosis (IPF) based on the ATS diagnostic algorithm for IPF. UIP that is not idiopathic, for example related to rheumatoid arthritis (RA), familial interstitial lung disease (ILD), or other is not exclusionary.
- Greater extent of emphysema than of fibrotic ILD on HRCT. Note: CT results must be confirmed through the central over read process.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AP01Also: Pirfenidone SolutionOral inhalation solution | Drug | AP01 High Dose BID, AP01 Low Dose BID |
| PlaceboPlacebo oral inhalation solution | Other | Placebo BID |
Primary outcome
To evaluate the effect of AP01 high dose twice a day (BID) or AP01 low dose twice a day (BID) compared to placebo twice a day (BID)
Time frame: Week 52
Change from baseline in forced vital capacity (FVC) (mL)
3 secondary outcomes
To evaluate the effect of AP01 high dose and AP01 low dose compared to placebo on disease progression (defined as absolute FVC percent predicted decline of ≥10% prior to Week 52)
Time frame: 52 weeks
To evaluate the effect of AP01 high dose, AP01 low dose compared to placebo on quality of life (QoL)
Time frame: 52 weeks
To evaluate the change from baseline in quantitative lung fibrosis score.
Time frame: 52 weeks
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Oct 2026.
- Results publication: PubMed 36948586West A, Chaudhuri N, Barczyk A, Wilsher ML, Hopkins P, Glaspole I, Corte TJ, Sterclova M, Veale A, Jassem E, Wijsenbeek MS, Grainge C, Piotrowski W, Raghu G, Shaffer ML, Nair D, Freeman L, Otto K, Montgomery AB. Inhaled pirfenidone solution (AP01) for IPF: a randomised, open-label, dose-response trial. Thorax. 2023 Sep;78(9):882-889. doi: 10.1136/thorax-2022-219391. Epub 2023 Mar 22.
- Derived from this study: PubMed 41448793Kolb M, Corte TJ, Feldman J, Nathan SD, Reisner C, Nair D, Woodhead F, Lazarus H, Conoscenti C. Design of the MIST study: a double-blind, randomised, placebo-controlled phase 2b trial of pirfenidone solution for inhalation in patients with progressive pulmonary fibrosis. BMJ Open Respir Res. 2025 Dec 25;12(1):e003059. doi: 10.1136/bmjresp-2024-003059.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Avalyn Pharma, Inc. study director
Avalyn Pharma Inc.
154 sites in 14 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing AP01 in people with Pulmonary Fibrosis and Progressive Pulmonary Fibrosis, run by Avalyn Pharma Inc. at 154 sites in 14 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 17 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 16 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 154 sites in United States, United Kingdom, Australia, Spain, Argentina and 9 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
To evaluate the effect of AP01 high dose twice a day (BID) or AP01 low dose twice a day (BID) compared to placebo twice a day (BID) (time frame: Week 52). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06329401, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Oct 2026.