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A Study Evaluating the Safety and Efficacy of Inhaled AP01 in Participants With Progressive Pulmonary Fibrosis

A Randomized, Double-Blind, Placebo-Controlled, Phase 2b Study Evaluating the Safety and Efficacy of Pirfenidone Solution for Inhalation (AP01) in Participants With PPF

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06329401
Enrollment
375
Registered
2024-03-25
Start date
2024-04-03
Completion date
2027-06-01
Last updated
2026-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypersensitivity Pneumonitis, Interstitial Lung Disease, Interstitial Lung Disease Due to Connective Tissue Disease (Disorder), Interstitial Lung Disease in Patients With Rheumatoid Arthritis, Interstitial Lung Disease With Progressive Fibrotic Phenotype in Diseases Classified Elsewhere, Interstitial Lung Disease With Systemic Sclerosis, Progressive Pulmonary Fibrosis, Pulmonary Fibrosis, Pulmonary Fibrosis, Interstitial Lung Disease, Pulmonary Fibrosis Secondary to Systemic Sclerosis

Keywords

Chronic-Fibrosing-ILD with progressive phenotype, PF-ILD

Brief 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.

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.

Interventions

DRUGAP01

Oral inhalation solution

OTHERPlacebo

Placebo oral inhalation solution

Sponsors

Avalyn Pharma Inc.
Lead SponsorINDUSTRY
DevPro Biopharma
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 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): 1. Relative decline in FVC ≥10% predicted within the previous 24 months based on documented historical spirometry assessments 2. 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 * 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 3. 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: a. 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 nintedanib (up to 30% of subjects): Must have been on nintedanib for at least 6 months prior to Screening with or without dose adjustments and/or drug interruptions during that period. For subjects who have discontinued nintedanib prior to Screening: Must have been off of nintedanib for a minimum of 12 weeks.

Exclusion criteria

* Current treatment with oral pirfenidone or treatment with oral pirfenidone within 3 months prior to Screening. * Elevated liver enzymes and liver injury at Screening defined as: 1. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ˃ 3 times the upper limit of normal (ULN) 2. 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. * 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 * 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.

Design outcomes

Primary

MeasureTime frameDescription
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)Week 52Change from baseline in forced vital capacity (FVC) (mL)

Secondary

MeasureTime frameDescription
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)52 weeksTime to disease progression
To evaluate the effect of AP01 high dose, AP01 low dose compared to placebo on quality of life (QoL)52 weeksAbsolute 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.
To evaluate the change from baseline in quantitative lung fibrosis score.52 weeksChange in lung fibrosis score.

Countries

Argentina, Australia, Belgium, Canada, France, Germany, Italy, Netherlands, New Zealand, Poland, Spain, Turkey (Türkiye), United Kingdom, United States

Contacts

STUDY_DIRECTORAvalyn Pharma, Inc.

Avalyn Pharma Inc.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 3, 2026