A Multi Center Study Testing a New Implant for Adults With Severe Emphysema
IAB-2
A Multicenter, Prospective Trial Evaluating the Safety and Efficacy of the Implantable Artificial Bronchus (IAB) in Adults Suffering From Severe Emphysema
1 other identifier
interventional
60
1 country
3
Brief Summary
A study taking place at multiple sites in the United States, Europe and Brazil to evaluate how well a new therapy for severe COPD/emphysema works, and how safe it is.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Mar 2026
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 28, 2025
CompletedFirst Posted
Study publicly available on registry
August 13, 2025
CompletedStudy Start
First participant enrolled
March 25, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 1, 2027
June 3, 2026
June 1, 2026
1.3 years
July 28, 2025
June 2, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Absolute change in residual volume (RV)
The primary endpoint is the absolute change in residual volume (RV) from baseline to endpoint as recorded 90-days after the last implant.
90 days after last IAB is implanted
Secondary Outcomes (1)
Changes from baseline to 90-days, involving pulmonary function, exercise tolerance, dyspnea burden and occurrence as well as all related adverse device effects
90 days after last implant
Study Arms (1)
All subjects will receive study treatment
EXPERIMENTALAll subjects will receive treatment with a maximum of 10 Implantable Artificial Bronchus (IABs) which are polymer based stents that can be permanently placed in any diseased lobe of the lungs.
Interventions
The Implantable Artificial Bronchus (IAB) is a tapered, flexible and fenestrated polymer-based airway stent that is implanted bronchoscopically using a proprietary delivery system into diseased lungs of patients with emphysema.
Eligibility Criteria
You may qualify if:
- Signed Informed Consent.
- Diagnosis of COPD/emphysema.
- At least 22-years of age.
- ≤ BMI ≤ 32.
- minute walk Distance between 100-meters and 400-meters at baseline exam.
- Stable disease with less than 10-mg prednisone (or equivalent) daily
- Non-smoking for 4-months prior to screening interview (including tobacco, vaping, marijuana, etc.).
- FEV1 between 15% and 50% of predicted value at baseline exam.
- FEV1/FVC \<70%.
- Subject has ≥25% emphysema destruction score in each lung defined by areas of low attenuation \<-950 HU, as determined by CT core lab.
- Subject has homogeneous or heterogeneous emphysema, and at least one lung has a 15% difference between upper and lower lobes in emphysema destruction score (\< -950HU) as determined by CT core lab.
- RV \> 175% of predicted value.
- mMRC score ≥ 2.
You may not qualify if:
- \. Currently participating in another clinical study that involves surgery, interventional or pharmaceutical treatment..
- \. α-1 Antitrypsin deficiency 3. Women of child-bearing potential. 4. More than 2 COPD exacerbation episodes requiring hospitalization in the last year prior to screening.
- \. Any COPD exacerbations requiring hospitalization within 6-weeks of planned intervention.
- \. Two or more instances of pneumonia episodes requiring hospitalization in the last year prior to screening.
- \. Clinically significant mucus production or chronic bronchitis. 8. Myocardial Infarction or unstable / uncontrolled congestive heart failure within 6-months of screening.
- \. Prior lung transplant, LVRS, bullectomy, lobectomy or endoscopic lung volume reduction (ELVR).
- \. Clinically significant bronchiectasis. 11. Unable to safely discontinue anti-coagulants or platelet activity inhibitors for 7-days.
- \. Uncontrolled pulmonary hypertension (systolic pulmonary arterial pressure \>45 mm Hg) or evidence or history of cor pulmonale as determined by recent echocardiogram (completed within the last 3-months prior to screening visit). Note: the echocardiogram is not a required screening procedure.
- \. Suspected malignant pulmonary nodule or other lung cancer. 14. HRCT collected per CT scanning protocol within the last 6-months of screening date and evaluated by clinical site personnel using 3D segmentation software shows:
- Large bullae encompassing greater than 30% of either lung
- Insufficient landmarks to evaluate the CT study using the software as it is intended
- All lobes are less than 25% parenchyma diseased (\< -950 HU) 15. Any cardiac comorbidity which the PI believes would compromise the safety of the patient after an IAB implant.
- \. TLC \< 100% predicted at screening. 17. DLCO \< 15% or \> 50% of predicted value at screening. 18. PaCO2 \> 50 mm Hg at screening. 19. PaO2 \< 45 mm Hg in room air at screening. 20. Plasma cotinine level \> 13.7 ng/ml or carboxyhemoglobin (arterial or ear lobe capillary) \>2.5% at screening.
- \. Current diagnosis of substance abuse disorder. 22. Current diagnosis of any of the following: Major Depressive Disorder (MDD), Schizoaffective Disorder, Schizophrenia, Borderline Personality Disorder, Bipolar Disorder.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
University of California, San Francisco
San Francisco, California, 94143, United States
Northwestern University
Chicago, Illinois, 60611, United States
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Adnan Majid, MD
Beth Israel Deaconess Medical Center
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 28, 2025
First Posted
August 13, 2025
Study Start
March 25, 2026
Primary Completion (Estimated)
July 1, 2027
Study Completion (Estimated)
November 1, 2027
Last Updated
June 3, 2026
Record last verified: 2026-06
Data Sharing
- IPD Sharing
- Will not share