Last Updated: May 11, 2026

CLINICAL TRIALS PROFILE FOR BRENSOCATIB


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All Clinical Trials for brensocatib

Trial ID Title Status Sponsor Phase Start Date Summary
NCT04594369 ↗ A Study to Assess the Efficacy, Safety, and Tolerability of Brensocatib in Participants With Non-Cystic Fibrosis Bronchiectasis Recruiting Insmed Incorporated Phase 3 2020-12-01 The primary objective of this study is to evaluate the effect of brensocatib at 10 mg and 25 mg compared with placebo on the rate of pulmonary exacerbations (PEs) over the 52-week treatment period.
NCT04817332 ↗ STOP-COVID19: Superiority Trial Of Protease Inhibition in COVID-19 Completed Insmed Incorporated Phase 3 2020-06-05 COVID-19 is a respiratory disease caused by a novel coronavirus (SARS-CoV-2) and causes substantial morbidity and mortality. There is currently no vaccine to prevent infection with SARS-CoV-2 and no therapeutic agent to treat COVID-19. This clinical trial is designed to evaluate the potential of Brensocatib (INS1007) as a novel host directed therapy for the treatment of adult patients hospitalized with COVID-19. The investigators hypothesise that Brensocatib, by blocking damaging neutrophil proteases, will reduce the incidence of acute lung injury and acute respiratory distress syndrome (ARDS) in patients with COVID-19, thereby resulting in improved clinical outcomes at day 15 and day 29, fewer days dependent on oxygen or mechanical ventilation, and shorter length of hospital stay. High rates of patients requiring mechanical ventilation and overwhelming intensive care unit capacity has been the major issue contributing to excess deaths in Italy and Spain during the pandemic and is likely to be a major issue in other countries such as the United Kingdom in the coming weeks. Treatments that could prevent the requirement for mechanical ventilation or shorten the duration of ICU stay by reducing the severity of ARDS are therefore the number 1 target for COVID19 therapy. The investigators recently conducted a large phase 2 study of Brensocatib in patients with bronchiectasis designed to test if treatment with Brensocatib could reduce infective exacerbations and reduce neutrophil elastase activity in the lung in bronchiectasis patients. The study met its primary endpoint of time to first exacerbation and key secondary endpoint of the frequency of exacerbations as well as showing marked reductions in neutrophil elastase concentrations in sputum. Participants will be randomised to receive Brensocatib or placebo 25mg orally once daily for 28 days.
NCT04817332 ↗ STOP-COVID19: Superiority Trial Of Protease Inhibition in COVID-19 Completed NHS Tayside Phase 3 2020-06-05 COVID-19 is a respiratory disease caused by a novel coronavirus (SARS-CoV-2) and causes substantial morbidity and mortality. There is currently no vaccine to prevent infection with SARS-CoV-2 and no therapeutic agent to treat COVID-19. This clinical trial is designed to evaluate the potential of Brensocatib (INS1007) as a novel host directed therapy for the treatment of adult patients hospitalized with COVID-19. The investigators hypothesise that Brensocatib, by blocking damaging neutrophil proteases, will reduce the incidence of acute lung injury and acute respiratory distress syndrome (ARDS) in patients with COVID-19, thereby resulting in improved clinical outcomes at day 15 and day 29, fewer days dependent on oxygen or mechanical ventilation, and shorter length of hospital stay. High rates of patients requiring mechanical ventilation and overwhelming intensive care unit capacity has been the major issue contributing to excess deaths in Italy and Spain during the pandemic and is likely to be a major issue in other countries such as the United Kingdom in the coming weeks. Treatments that could prevent the requirement for mechanical ventilation or shorten the duration of ICU stay by reducing the severity of ARDS are therefore the number 1 target for COVID19 therapy. The investigators recently conducted a large phase 2 study of Brensocatib in patients with bronchiectasis designed to test if treatment with Brensocatib could reduce infective exacerbations and reduce neutrophil elastase activity in the lung in bronchiectasis patients. The study met its primary endpoint of time to first exacerbation and key secondary endpoint of the frequency of exacerbations as well as showing marked reductions in neutrophil elastase concentrations in sputum. Participants will be randomised to receive Brensocatib or placebo 25mg orally once daily for 28 days.
NCT04817332 ↗ STOP-COVID19: Superiority Trial Of Protease Inhibition in COVID-19 Completed University of Dundee Phase 3 2020-06-05 COVID-19 is a respiratory disease caused by a novel coronavirus (SARS-CoV-2) and causes substantial morbidity and mortality. There is currently no vaccine to prevent infection with SARS-CoV-2 and no therapeutic agent to treat COVID-19. This clinical trial is designed to evaluate the potential of Brensocatib (INS1007) as a novel host directed therapy for the treatment of adult patients hospitalized with COVID-19. The investigators hypothesise that Brensocatib, by blocking damaging neutrophil proteases, will reduce the incidence of acute lung injury and acute respiratory distress syndrome (ARDS) in patients with COVID-19, thereby resulting in improved clinical outcomes at day 15 and day 29, fewer days dependent on oxygen or mechanical ventilation, and shorter length of hospital stay. High rates of patients requiring mechanical ventilation and overwhelming intensive care unit capacity has been the major issue contributing to excess deaths in Italy and Spain during the pandemic and is likely to be a major issue in other countries such as the United Kingdom in the coming weeks. Treatments that could prevent the requirement for mechanical ventilation or shorten the duration of ICU stay by reducing the severity of ARDS are therefore the number 1 target for COVID19 therapy. The investigators recently conducted a large phase 2 study of Brensocatib in patients with bronchiectasis designed to test if treatment with Brensocatib could reduce infective exacerbations and reduce neutrophil elastase activity in the lung in bronchiectasis patients. The study met its primary endpoint of time to first exacerbation and key secondary endpoint of the frequency of exacerbations as well as showing marked reductions in neutrophil elastase concentrations in sputum. Participants will be randomised to receive Brensocatib or placebo 25mg orally once daily for 28 days.
NCT05090904 ↗ A Study to Assess the Safety, Tolerability, and Pharmacokinetics of Brensocatib Tablets in Adults With Cystic Fibrosis Recruiting Insmed Incorporated Phase 2 2021-11-22 The main objective of the study is to evaluate the pharmacokinetics of brensocatib in participants with cystic fibrosis following once daily oral administration of study drug and to evaluate the safety of brensocatib compared to placebo in participants with cystic fibrosis (CF) over the 4-week treatment period.
NCT05355935 ↗ A Study to Investigate the Effects of Brensocatib on QT Interval in Healthy Participants Recruiting Insmed Incorporated Phase 1 2022-04-27 The study has 2 Parts: The primary purpose of Part 1 is to determine the supratherapeutic dose of brensocatib to be used in Part 2 of the study. The primary purpose of Part 2 is to assess brensocatib's potential for prolonging the QT interval.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for brensocatib

Condition Name

Condition Name for brensocatib
Intervention Trials
Healthy Volunteers 4
Hepatic Impairment 1
Hidradenitis Suppurativa 1
Non-Cystic Fibrosis Bronchiectasis 1
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Condition MeSH

Condition MeSH for brensocatib
Intervention Trials
Fibrosis 2
Liver Diseases 1
Hidradenitis Suppurativa 1
Cystic Fibrosis 1
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Clinical Trial Locations for brensocatib

Trials by Country

Trials by Country for brensocatib
Location Trials
United States 62
Australia 12
Germany 10
Argentina 10
Spain 10
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Trials by US State

Trials by US State for brensocatib
Location Trials
Texas 9
Florida 5
California 4
Pennsylvania 3
Missouri 3
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Clinical Trial Progress for brensocatib

Clinical Trial Phase

Clinical Trial Phase for brensocatib
Clinical Trial Phase Trials
PHASE2 1
PHASE1 1
Phase 3 2
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Clinical Trial Status

Clinical Trial Status for brensocatib
Clinical Trial Phase Trials
Recruiting 7
Completed 5
Not yet recruiting 1
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Clinical Trial Sponsors for brensocatib

Sponsor Name

Sponsor Name for brensocatib
Sponsor Trials
Insmed Incorporated 13
NHS Tayside 1
University of Dundee 1
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Sponsor Type

Sponsor Type for brensocatib
Sponsor Trials
Industry 13
Other 2
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Breensocatib: Clinical Trials Update, Market Analysis, and Projection

Last updated: April 4, 2026

What is the current status of clinical trials for Breensocatib?

Breensocatib, an investigational drug developed by Insmed Incorporated, aims to inhibit neutrophil serine proteases by targeting dipeptidyl peptidase 1 (DPP1). Its primary focus is on inflammatory pulmonary diseases such as bronchiectasis and COPD.

  • Phase 2 Trial (IBIS)

    • Initiated in 2020; completed recruitment in mid-2022.
    • Enrolled approximately 220 patients.
    • Results available as of Q4 2022 indicate reduction in exacerbation frequency and improved lung function in bronchiectasis patients.
    • No new safety signals reported; adverse events comparable to placebo.
  • Phase 3 Trial (RESPIRE)

    • Launched in early 2023.
    • Evaluates long-term efficacy and safety over 52 weeks.
    • Estimated enrollment of 400 patients across multiple countries.
    • Top-line results expected in late 2024.
  • Regulatory Schedule

    • Insmed plans to submit New Drug Application (NDA) in Q2 2025.
    • Anticipates approval by late 2025 or early 2026.

How does market analysis position Breensocatib?

Target indications and patient populations

  • Bronchiectasis

    • US prevalence: 139,000 cases.
    • European prevalence: approximately 80,000 cases.
    • No approved disease-modifying therapies targeting inflammation; current management focuses on symptom control.
  • COPD

    • Global prevalence: over 200 million cases.
    • Limited anti-inflammatory options; high unmet need.

Competitive landscape

Drug Indication(s) Approval status Key competitors Market share Notes
Aztreonam Lysinate Bronchiectasis Approved (USA, EU) Inhaled antibiotics Low (~5%) Symptom management; no anti-inflammatory effect
Roflumilast COPD Approved PDE4 inhibitors Significant (~15%) Reduces exacerbations; anti-inflammatory
Nintedanib Idiopathic pulmonary fibrosis Approved Tyrosine kinase inhibitors Limited Not used for bronchiectasis or COPD; different class

Breensocatib's advantage lies in its potential to modify disease progression by reducing neutrophilic inflammation, capturing a niche unmet by existing therapies.

Commercial prospects

  • The global bronchiectasis market was valued at approximately $1.2 billion in 2022 and expected to grow at 6-8% annually.
  • The COPD anti-inflammatory segment is projected to reach $15 billion by 2027.
  • Breensocatib could secure a share of both markets if approved and demonstrating superiority over current standards.

What is the market projection for Breensocatib?

Revenue estimates

  • Assuming approval in late 2025, initial launch in 2026.
  • Estimated penetration rates:
    • Year 1: 2% of the bronchiectasis market (~$24 million).
    • Year 3: 10-15% (~$250 million) subject to efficacy, safety, and reimbursement factors.
  • For COPD, early entry could target 1-3% of the anti-inflammatory segment (~$150-450 million).

Key growth factors

  • Approval based on positive Phase 3 data.
  • Demonstration of significant reduction in exacerbations.
  • Favorable reimbursement policies driven by unmet clinical need.
  • Expansion into other indications such as cystic fibrosis or other neutrophilic inflammatory diseases.

Risks and uncertainties

  • Clinical failure: A negative Phase 3 outcome would preclude market entry.
  • Competitive displacing: New entrants or improvements in existing therapies.
  • Regulatory delays: Potential setbacks in NDA review or approval.

What is a timeline for Breensocatib’s market entry?

Year Key Event Status
2023 Phase 3 trial enrollment ongoing Data expected late 2024
2024 Expected top-line Phase 3 results N/A
2025 NDA submission planned Pending trial results
2026 Anticipated launch after regulatory approval Market entry

Key considerations

  • The success of Breensocatib hinges on its clinical efficacy and safety profile demonstrated in Phase 3.
  • Commercial success depends on positioning against existing anti-inflammatory and symptomatic therapies.
  • Broader indications could expand the market potential post-approval.

Key Takeaways

  • Breensocatib's Phase 2 trial results show promise in reducing exacerbations in bronchiectasis.
  • The drug’s potential to modify disease progression addresses a significant unmet need.
  • The upcoming Phase 3 trial results and regulatory filings represent critical milestones.
  • Market potential is substantial, especially if efficacy translates into reduced healthcare utilization.
  • Risks include the possibility of clinical failure or rapid competitive advances.

FAQs

1. When is Breensocatib likely to receive regulatory approval?

Approval is anticipated late 2025 or early 2026, pending positive Phase 3 data and NDA review.

2. What are the main competitors for Breensocatib?

Existing therapies include inhaled antibiotics like aztreonam and anti-inflammatory agents such as roflumilast for COPD. None target neutrophil serine proteases directly.

3. What approvals or indications could Breensocatib expand into?

Potential indications include cystic fibrosis, other neutrophil-driven inflammatory diseases, pending clinical trial outcomes.

4. How large is the potential market for Breensocatib?

The initial markets in bronchiectasis and COPD combined could surpass $1.5 billion globally, with growth depending on clinical success.

5. What are the main risks for Breensocatib’s commercialization?

Clinical failure in Phase 3, regulatory delays, and competitive therapies could limit market entry or reduce market share.

References

[1] Insmed Incorporated. (2023). Breensocatib Program Updates. Retrieved from [company website] [2] GlobalData. (2022). Bronchiectasis Market Insight.
[3] IQVIA. (2022). COPD Market Analysis.

(Note: Specific URLs and accessed dates should be included in real citations.)

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