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Long-term, Open-label Study of SAR447537 (INBRX-101) in Adults With Alpha-1 Antitrypsin Deficiency Emphysema

A Phase 2, Single Arm, Open Label Extension Study, Evaluating the Long-Term Safety and Clinical Efficacy of SAR447537 (INBRX-101) in Adults With Alpha-1 Antitrypsin Deficiency (AATD) Emphysema

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05897424
Acronym
ELEVAATE OLE
Enrollment
185
Registered
2023-06-09
Start date
2024-06-20
Completion date
2028-09-30
Last updated
2026-04-13

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

Conditions

Alpha 1-Antitrypsin Deficiency, Emphysema

Keywords

AATD, Alpha 1-Antitrypsin Deficiency, Emphysema, INBRX-101, AAT, SAR447537

Brief summary

Phase 2 open label extension study to evaluate SAR447537 (INBRX-101) in adults with AATD emphysema

Detailed description

This is a Phase 2, Single Arm, Open Label Extension Study, Evaluating the Long-Term Safety and Clinical Efficacy of SAR447537 (INBRX-101) in Adults With Alpha-1 Antitrypsin Deficiency (AATD) Emphysema.

Interventions

A1PI, Recombinant, Bivalent Fc Fusion Protein

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Multicenter, single arm, open-label extension study

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Males or females 18-80 years of age, inclusive, at the time of screening 2. Diagnosis of AATD 3. Evidence of emphysema secondary to AATD 4. FEV1 of ≥ 30% predicted at screening and post-bronchodilator FEV1/FVC\<0.7 5. Current non-smoking status

Exclusion criteria

For newly identified participants 1. Receipt of A1PI augmentation therapy within 5 weeks prior to the first dose of study drug 2. Known or suspected allergy to components of SAR447537, A1PI or human IgG 3. Uncontrolled diabetes mellitus despite adequate antidiabetic pharmacologic treatment with a screening HbA1c value ≥9% 4. Received IV immunoglobulins, monoclonal antibodies and/or other biologic therapies within 30 days 5. On waiting list for lung or liver transplant 6. Acute respiratory tract infection or COPD exacerbation within 4 weeks prior to or during screening 7. Evidence of decompensated cirrhosis 8. Active cancers or has a history of malignancy within 5 years prior to screening 9. History of unstable cor pulmonale The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Long-term safety and tolerability3 yearsIncidence of all treatment emergent adverse events (TEAEs), TEAEs ≥ Grade 3, serious adverse events (SAEs), TEAEs leading to discontinuation from SAR447537, and adverse events of special interest (AESIs) (including infusion-related reactions).

Secondary

MeasureTime frameDescription
Change in lung density by quantitative computerized tomography (CT)3 yearsAssess the annual rate of change in lung density assessed by serial quantitative CT (15th percentile point, PD15) at total lung capacity (TLC), centrally read, from baseline to end of treatment (EoT).
Trough SAR447537 concentration changes3 yearsChange in SAR447537 concentration levels from baseline to end of treatment
Trough serum functional AAT (fAAT) concentration changes3 yearsChange in fAAT concentration levels from baseline to end of treatment
Covariate Analysis: Biometric Values: Weight3 yearsAssessment of the impact of participant's weight \[in kg\] on the pharmacokinetic profile of SAR447537
Covariate Analysis: Biometric Values: Height3 yearsAssessment of the impact of participant's height \[in cm\] on the pharmacokinetic profile of SAR447537
Covariate Analysis: Biometric Values: Age3 yearsAssessment of the impact of participant's age \[in years\] on the pharmacokinetic profile of SAR447537
Covariate Analysis: Biometric Values: Sex3 yearsAssessment of the impact of participant's sex \[male or female\] on the pharmacokinetic profile of SAR447537
Anti-drug antibodies3 yearsFrequency of anti-drug antibodies (ADA) against SAR447537 as well as neutralizing ADA (NAb) against SAR447537

Countries

Australia, Denmark, Ireland, New Zealand, Poland, Spain, Sweden, United Kingdom, United States

Contacts

STUDY_DIRECTORClinical Sciences & Operations

Sanofi

Outcome results

None listed

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