Trial reportClinical and translational science2024
Novel cathepsin C inhibitor, BI 1291583, intended for treatment of bronchiectasis: Phase I characterization in healthy volunteers.
Trial report in Clinical and translational science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 8 registered trials, which are not on this map. Cited by 10 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Single Rising Oral Doses of BI 1291583 (Single-blind, Partially Randomised, Placebo-controlled Parallel Group Design) in Healthy Male Subjects
Relative Bioavailability of BI 1291583 Following Oral Administration Under Fed and Fasted Conditions in Healthy Male Subjects (an Open-label, Randomised, Single-dose, Two-period, Two-sequence Crossover Study)
Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Multiple Rising Oral Doses of BI 1291583 qd Versus Placebo in Healthy Male and Female Subjects for 4 Weeks (Single-blind, Partially Randomised, Placebo-controlled Parallel Group Design)
Relative Bioavailability of a Single Oral Dose of BI 1291583 When Administered Alone or in Combination With Multiple Oral Doses of Itraconazole in Healthy Male Subjects (an Open-label, Two-period, Fixed Sequence Study)
Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Multiple Rising Oral Doses of BI 1291583 qd Versus Placebo in Healthy Male and Female Subjects for 4 Weeks (Single-blind, Partially Randomised, Placebo-controlled Parallel Group Design)
A Randomised, Double-blind, Placebo-controlled, Parallel Group, Dose-finding Study Evaluating Efficacy, Safety and Tolerability of BI 1291583 qd Over at Least 24 Weeks in Patients With Bronchiectasis (AirleafTM)
A Randomised, Double-blind, Parallel Group, Roll-over Study Evaluating Long-term Safety and Efficacy of Oral Doses of BI 1291583 q.d. in Patients With Bronchiectasis (Clairleafᵀᴹ)
A Randomized, Double-blind, Placebo-controlled, Parallel Group Trial Evaluating Safety, Tolerability, Pharmacodynamics and Pharmacokinetics of BI 1291583 One Tablet Once Daily Over 12 Weeks Versus Placebo in Adult Patients With Cystic Fibrosis Bronchiectasis (Clairafly™)
Who cites it
10 citing papers in PubMed.
- Cathepsin C (dipeptidyl peptidase 1) inhibition in adults with bronchiectasis: AIRLEAF, a phase II randomised, double-blind, placebo-controlled, dose-finding study.The European respiratory journal · 2025Trial
- Novel cathepsin C inhibitor, BI 1291583, intended for treatment of bronchiectasis: Phase I characterization in healthy volunteers.Clinical and translational science · 2024Trial
- Cathepsin C orchestrates RSV-induced asthma exacerbation through the dual effect of monocyte-derived macrophages.Cellular & molecular immunology · 2026Article
- The Role of Dipeptidyl Peptidase Inhibitors in Pulmonary Diseases.Biomedicines · 2026Review
- Tackling Neutrophilic Inflammation in Bronchiectasis: From Macrolides to Cathepsin C Inhibitors.Journal of inflammation research · 2026Review
- Dipeptidyl peptidase 1 inhibitors and neutrophilic inflammation in bronchiectasis: a narrative review.Journal of thoracic disease · 2025Review
- Cathepsins: Emerging targets in the tumor ecosystem to overcome cancers.Seminars in cancer biology · 2025Review
- Dipeptidyl peptidase 1 inhibitors for inflammatory respiratory diseases: mechanisms, clinical trials, and therapeutic prospects.Frontiers in pharmacology · 2025Review
- Targeting neutrophil serine proteases in bronchiectasis.The European respiratory journal · 2025Review
- Neutrophil serine proteases in cystic fibrosis: role in disease pathogenesis and rationale as a therapeutic target.European respiratory review : an official journal of the European Respiratory Society · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Novel treatments are needed to reduce inflammation, improve symptoms, address exacerbations, and slow disease progression in bronchiectasis. Cathepsin C (CatC) inhibition promises to achieve this through reduction of neutrophil-derived serine protease (including neutrophil elastase [NE] and proteinase 3 [PR3]) activation. Here, we present the phase I characterization of the novel CatC inhibitor, BI 1291583. Five phase I trials of BI 1291583 in healthy subjects are presented: a single-rising-dose study (NCT03414008) and two multiple-rising-dose studies (NCT03868540 and NCT04866160) assessing the safety, tolerability, pharmacodynamics, and pharmacokinetics of BI 1291583; a food effect study (NCT03837964); and a drug-drug interaction study (NCT03890887) of BI 1291583 and itraconazole. BI 1291583 was safe and well tolerated across the doses tested in these trials. Most adverse events (AEs) were mild or moderate in intensity, with no serious AEs, AEs of special interest or deaths reported in any trial. Drug-related skin exfoliation was not reported more frequently in subjects treated with BI 1291583 compared with placebo. BI 1291583 was readily absorbed, and pharmacokinetics were supra-proportional over the dose ranges assessed. Additionally, BI 1291583 inhibited CatC in a dose-dependent manner, inhibited downstream NE activity, and decreased PR3 levels. No food effect was observed. Co-administration of multiple doses of itraconazole increased BI 1291583 exposure approximately twofold. Due to these promising phase I results, a multinational phase II program of BI 1291583 in adults with bronchiectasis is ongoing (Airleaf™ [NCT05238675], Clairafly™ [NCT05865886], and Clairleaf™ [NCT05846230]).
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.