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A Proof-of-Concept Study to Assess the Efficacy, Safety and Tolerability of Itepekimab (Anti-IL-33 mAb) in Participants With Non-cystic Fibrosis Bronchiectasis

A Randomized, Double-blind, Placebo-controlled, Parallel-group, Proof-of-Concept (PoC) Study to Assess the Efficacy, Safety and Tolerability of Itepekimab, in Participants With Non-cystic Fibrosis Bronchiectasis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06280391
Enrollment
312
Registered
2024-02-28
Start date
2024-02-20
Completion date
2026-02-02
Last updated
2026-02-12

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

Conditions

Bronchiectasis

Brief summary

ACT18018 is a multinational, randomized, double-blind, placebo-controlled, parallel-group, Phase 2 study with 3 treatment groups. The purpose of this study is to evaluate efficacy, safety and tolerability with 2 dosing regimens of itepekimab compared with placebo in male and/or female participants with NCFB aged 18 years of age up to 85 years of age (inclusive). Study details include: * The study duration (screening, 24-52-week treatment, 20-week safety follow-up) will be up to 47-77 weeks. * The treatment duration will be up to 24-52 weeks. * The follow-up duration will be 20 weeks. * Site/phone visits are at a monthly interval.

Interventions

Pharmaceutical form: solution for injection in pre-filled syringe. Route of administration: subcutaneous

DRUGPlacebo

Pharmaceutical form: solution for injection in pre-filled syringe. Route of administration: subcutaneous

Sponsors

Sanofi
Lead SponsorINDUSTRY
Regeneron Pharmaceuticals
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Participant must be 18 to 85 years of age inclusive. * Clinical history consistent with NCFB (cough, chronic sputum production and/or recurrent respiratory infections). * Participants with a FEV1 % predicted ≥30%. * Participants with at least 2 moderate or 1 severe Pulmonary exacerbations (PEs) in the past 12 months.

Exclusion criteria

Participants are excluded from the study if any of the following criteria apply: * Have bronchiectasis due to CF, hypogammaglobulinemia, common variable immunodeficiency, known active nontuberculous mycobacteria (NTM) lung infection, or pulmonary fibrosis. * Known or suspected immunodeficiency disorder. * Pulmonary exacerbation which has not resolved clinically during screening period. * Have significant haemoptysis. * Have any clinically significant abnormal laboratory values at Screening or diseases or disorders. * History of lung transplantation. * History of malignancy within 5 years before Screening, or during the screening period * Currently being treated with antimicrobial therapy for tuberculosis (TB). * Currently on active treatment for allergic bronchopulmonary aspergillosis (ABPA). * Participants with active autoimmune disease or participants using immunosuppressive therapy for autoimmune disease * Known allergy to itepekimab or to excipients * Live-attenuated vaccine(s) within 4 weeks prior to Screening or plans to receive such vaccines during the study * Unstable ischemic heart disease * Cardiomyopathy or other relevant cardiovascular disorder * Clinically significant new abnormal electrocardiogram (ECG) within 6 months prior to, or at Screening * History of human immunodeficiency virus (HIV) infection or positive HIV 1/2 serology at Screening. The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Annualized rate of moderate or severe Pulmonary exacerbations (PEs) over the treatment periodBaseline up to End of Treatment (EOT) (24-52 weeks)Annualized rate of moderate or severe PEs over the placebo-controlled treatment period

Secondary

MeasureTime frameDescription
Time to first moderate or severe PE over the treatment periodBaseline up to End of Treatment (EOT) (24-52 weeks)
Percentage of participants who are PE free over the treatment periodBaseline up to End of Treatment (EOT) (24-52 weeks)
Annualized rate of severe PEs over the treatment periodBaseline up to End of Treatment (EOT) (24-52 weeks)
Percentage of participants who are severe PE free over the treatment periodBaseline up to End of Treatment (EOT) (24-52 weeks)
Time to first severe PE over the treatment periodBaseline up to End of Treatment (EOT) (24-52 weeks)
Change From Baseline in FEV1 at Week 8 and Week 24Week 8 and Week 24FEV1 is force expiratory volume in 1 second
Number of days of new and/or added (in participants with maintenance antibiotic use) antibiotic useBaseline up to End of Treatment (EOT) (24-52 weeks)
Change from Baseline in QOL-B Respiratory Symptoms Domain Score in Adult Participants at Week 24Week 24The Quality-Of-Life-Bronchiectasis (QOL-B) is a validated, self-administered patient reported outcome (PRO) that assesses symptoms, functioning and health-related QOL for subjects with NCFB.
Change from baseline in SGRQ total score at Week 24Week 24The St. George's Respiratory Questionnaire (SGRQ) is a 50-item questionnaire designed to measure and quantify health status in adult participants with chronic airflow limitation.
Percentage of participants with a decrease from baseline of at least 4 points in SGRQ total score at Week 24Week 24The St. George's Respiratory Questionnaire (SGRQ) is a 50-item questionnaire designed to measure and quantify health status in adult participants with chronic airflow limitation.
Incidence of TEAEs, AESIs, SAEs, and AEs leading to permanent study treatment discontinuation in the treatment-emergent periodBaseline up to End of Study (EOS) (44 to 72 weeks)
Serum concentrations of itepekimab from baseline to end of studyBaseline up to End of Study (EOS) (44 to 72 weeks)
Incidence of treatment-emergent anti-itepekimab antibodies (ADA) responses throughout the studyBaseline up to End of Study (EOS) (44 to 72 weeks)

Countries

Argentina, Brazil, Canada, Chile, China, Czechia, Denmark, France, Germany, Greece, Israel, Italy, Japan, Netherlands, Poland, Spain, Taiwan, Turkey (Türkiye), United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026