An interventional study of Implantable Artificial Bronchus in Emphysema or COPD, Emphysema and COPD, sponsored by Pulmair Medical, Inc.. Recruiting at 3 sites in United States. Open to participants aged 22 Years and older. Per ClinicalTrials.gov, last updated 2026-06-03.
Sponsored by Pulmair Medical, Inc. · Not applicable, Interventional, and Treatment
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.
IAB-2 is an open-label (unblinded), multicenter, prospective trial of the Implantable Artificial Bronchus (IAB) in adults suffering from severe COPD/emphysema. There is no control group or comparator. The study will be conducted at as many as twelve sites in the United States and three sites outside of the US, in the Netherlands, Germany and Brazil.
Exclusion Criteria:
1. Currently participating in another clinical study that involves surgery, interventional or pharmaceutical treatment..
2. 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.
5. Any COPD exacerbations requiring hospitalization within 6-weeks of planned intervention.
6. Two or more instances of pneumonia episodes requiring hospitalization in the last year prior to screening.
7. Clinically significant mucus production or chronic bronchitis. 8. Myocardial Infarction or unstable / uncontrolled congestive heart failure within 6-months of screening.
9. Prior lung transplant, LVRS, bullectomy, lobectomy or endoscopic lung volume reduction (ELVR).
10. Clinically significant bronchiectasis. 11. Unable to safely discontinue anti-coagulants or platelet activity inhibitors for 7-days.
12. 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.
13. 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:
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.
16. 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.
21. 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.
23. Any other conditions, which, in the opinion of the Investigator, would make the patient unsuitable for inclusion, or could interfere with the patient participating in or completing the study.
All 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.
Device: Implantable Artificial Bronchus
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.
Also known as: IAB
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.
Time frame: 90 days after last IAB is implanted
Changes from baseline to 90-days, involving pulmonary function, exercise tolerance, dyspnea burden and occurrence as well as all related adverse device effects
Absolute change in Forced Expiratory Volume in one second (FEV1) from baseline to endpoint; Absolute change in residual volume/total lung capacity (RV/TLC) from baseline to endpoint; Absolute change in Six-minute Walk Distance (6MWD); Absolute change in the St George's Respiratory Questionnaire (SGRQ) total score where a higher score represents more significant impact of the disease on wellbeing; Absolute change in the Modified Medical Research Counsel Questionnaire (mMRC) dyspnea score; Absolute changes in COPD Assessment Test (CAT), with higher scores indicating a greater impact of COPD on health; Absolute change in EQ-5D Summary Index Questionnaire which measures self-reported assessment of mobility, self-care, usual activities, pain/discomfort and anxiety/depression with a higher score indicating more significant impact of the disease on each dimension. Adverse Device Effects (ADEs), Serious Adverse Device Effects (SADEs) and Device Deficiencies (DDs) with SADE potential
Time frame: 90 days after last implant
Plan to share: No
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Pulmair Medical, Inc.