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RecruitingNCT07119229IAB-2Updated Jun 3, 2026

A Multi Center Study Testing a New Implant for Adults With Severe Emphysema

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

Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
22 Years and older
Sex
All
01

Study 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.

Read the detailed description

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.

02

Conditions studied

  • Emphysema or COPD
  • Emphysema
  • COPD

Keywords

  • IAB
  • Stent
  • Emphysema treatment
  • emphysema study
  • COPD treatment
  • COPD study
  • EBV alternative
  • Lung volume reduction
  • Lung hyperinflation treatment
03

Who can participate

Ages eligible
22 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Signed Informed Consent.
  2. Diagnosis of COPD/emphysema.
  3. At least 22-years of age.
  4. 18 ≤ BMI ≤ 32.
  5. 6-minute walk Distance between 100-meters and 400-meters at baseline exam.
  6. Stable disease with less than 10-mg prednisone (or equivalent) daily
  7. Non-smoking for 4-months prior to screening interview (including tobacco, vaping, marijuana, etc.).
  8. FEV1 between 15% and 50% of predicted value at baseline exam.
  9. FEV1/FVC \<70%.
  10. Subject has ≥25% emphysema destruction score in each lung defined by areas of low attenuation \<-950 HU, as determined by CT core lab.
  11. 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.
  12. RV > 175% of predicted value.
  13. mMRC score ≥ 2.

Exclusion criteria

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:

    1. Large bullae encompassing greater than 30% of either lung
    2. Insufficient landmarks to evaluate the CT study using the software as it is intended
    3. 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.

04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    All subjects will receive study treatment

    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

Interventions

  • DeviceImplantable 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

05

What researchers measure

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.

    Time frame: 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

    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

06

Study locations

3 of 3 sites recruiting
  • University of California, San Francisco
    San Francisco, California 94143, United States
    Recruiting
  • Northwestern University
    Chicago, Illinois 60611, United States
    Recruiting
  • Beth Israel Deaconess Medical Center
    Boston, Massachusetts 02215, United States
    Recruiting
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT07119229
Lead sponsor
Pulmair Medical, Inc.
Responsible party
Sponsor
First posted
Aug 13, 2025
Start date
Mar 25, 2026
Primary completion
Jul 2027 (estimated)
Completion
Nov 2027 (estimated)
Last update
Jun 3, 2026

Study contacts

VP Clincal Operations
Contact
tkruger@pulmair.com
858-369-0000
Clinical Study Manager
Contact
mgil@pulmair.com
858-369-0000
Adnan Majid, MD
principal investigator · Beth Israel Deaconess Medical Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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