Bronchoscopic Release Of Air Trapped In Hyperinflated Emphysematous Lung

Overview

About this study

The purpose of this study is to assess the safety and efficacy of the Apreo BREATHE System when used to support native airways and regional release of trapped air in the treatment of adult COPD patients with emphysema suffering from dyspnea due to pulmonary hyperinflation despite optimal medical management.

 

 

 

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria: 

  • Subject is at least 40, but not older than 84, years of age.

  • Subject has body mass index (BMI) of between 18 and 32, inclusive.

  • Subject has completed a documented pulmonary rehabilitation program within 12 months prior to Baseline.

  • Subject has mMRC score ≥ 2.

  • Subject can walk ≥100 meters but ≤ 450 meters in 6 minutes.

  • Subject has computed tomography (CT) scan evidence of bilateral emphysema, as determined by the CT core lab.

  • Subject has at least one target lobe with destruction score(s) of >30% and one airway segment in the contralateral lung with destruction score >35% percent of voxels with < -950 Hounsfield units on thin slice inspiratory CT, as determined by the CT core lab.

  • Subject has at least one target lobe with ≤ 30% difference with percent voxel density of < -910 Hounsfield units (HU) on thin slice inspiratory CT and percent voxel density of < -950 Hounsfield units on thin slice inspiratory CT to exclude subjects with small airways disease as determined by the CT core lab.

  • Subject has bilateral heterogenous emphysema with pre-procedure post-bronchodilator RV ≥ 150% predicted, or unilateral or bilateral homogenous emphysema with pre-procedure postbronchodilator RV ≥ 200% predicted.

  • Subject has pre-procedure post-bronchodilator FEV1/ FVC < 0.70.

  • Subject has a pre-procedure post-bronchodilator FEV1 percent predicted of ≥ 20% and ≤ 45%.

  • Subject has pre-procedure post-bronchodilator RV/TLC ≥ 0.60.

  • Subject has pre-procedure DLCO > 20%.

  • Subject has been receiving optimal medical management tailored to subject needs for 2 months prior to enrollment.

  • Subject has not actively smoked (including tobacco, marijuana, e-cigarettes, vaping, etc.) within the last 4 months, and agrees to smoking cessation during the study.

  • Subject has received preventative vaccinations (or documented clinical intolerance) against potential respiratory infections, including pneumococcus, influenza, RSV (subjects > 60 yrs. old) and Covid-19, consistent with local recommendations or policy.

  • In the opinion of the Primary investigator, subject can undergo bronchoscopy under general anesthesia and is able to adhere to the study follow-up schedule.

  • Subject has provided written informed consent.

Exclusion Criteria: 

  • Subject has known unresolved lower respiratory tract infection (e.g., pneumonia, mycobacterium avium-intracellulare infection (MAI), fungus, tuberculosis).

  • Subject has a steroid-dependent condition requiring (e.g. ≥ 10 mg oral corticosteroid per day).

  • Subject has bilateral lobar emphysematous destruction scores of > 70% percent of voxels with <-950 Hounsfield units on thin slice inspiratory CT, as determined by the CT core lab.

  • Subject has arterial or capillary blood on room air: PaCO2 > 50 mmHg (8 kPa) or PaO2 ≤ 45 mmHg (6 kPa).

  • Subject has had ≥ 2 hospitalization for acute exacerbations of COPD or ≥ 3 moderate exacerbations/respiratory infections in the year prior to enrollment.

  • Subject has had previous lung volume reduction surgery, lobectomy, pneumonectomy, segmentectomy, bullectomy, lung transplantation, vapor, glue, or other pulmonary device implant (unless the device has been removed at least 3 months prior to consent).

  • Subject has known or suspected history of pulmonary arterial hypertension with a PASP > 50mmHg on echocardiogram or mPAP > 25mmHg on a right heart catheterization.

  • Subject has presence of a giant bulla (≥ 30% of hemithorax).

  • Subject has currently active adult asthma based on GINA criteria, and/or chronic bronchitis as their primary diagnosis.

  • Subject has presence of suspicious radiological abnormalities on HRCT scan such as pulmonary nodule/infiltrate that in judgement of the PI, may require intervention during course of the study. 11. Subject has clinically significant bronchiectasis (>4 TBS / 45mL mucus production/day, per subject estimate) influencing subject’s COPD symptoms.

  • Subject has unresolved lung cancer.

  • Subject has a serious medical condition that, in the Primary investigator’s opinion, could compromise patient safety or confound the interpretation of the patient’s response to therapy (e.g., congestive heart failure, cardiomyopathy (documented LVEF ≤40%), or myocardial infarction in the past year, renal failure, liver disease cerebrovascular accident within the past 6 months, uncontrolled diabetes (HbA1c >8%), uncontrolled hypertension (diastolic BP >110 mmHg or systolic >200 mmHg) or autoimmune disease requiring treatment with immunosuppressant medications or a disease requiring chemotherapy.

  • Subject is on anticoagulant or antiplatelet therapy for cardiovascular indications and, at the discretion of the Primary investigator, is unable to have anticoagulants (i.e., Aspirin, Plavix, Coumadin) withheld for a bronchoscopy procedure per institution’s standard of care.

  • Subject has invasive mechanical ventilator dependency.

  • Subject is pregnant, lactating, or of childbearing potential and plans to become pregnant during study duration.

  • Subject has known hypersensitivity to Nitinol (nickel-titanium alloy) or its constituent metals (nickel or titanium).

  • Subject is significantly immunocompromised, such as organ transplant recipients, those with congenital immune deficiencies, AIDS, or severe rheumatoid arthritis.

  • Subject has sensitivity or allergy to medications necessary for bronchoscopy under general anesthesia.

  • Subject is currently participating in another study involving an investigational product that could confound the study results or affect the subject’s COPD symptoms.

  • Patient has had prior severe respiratory infection with SARS-CoV-2 (COVID-19) that required ICU support with non-invasive and/or invasive mechanical ventilation.

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 2/06/2025. Questions regarding updates should be directed to the study team contact.
 

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Jacksonville, Fla.

Mayo Clinic principal investigator

Jose Soto Soto, M.D.

Contact us for the latest status

Contact information:

Jose Soto Soto M.D.

(904) 953-2861

SotoSoto.Jose@mayo.edu

More information

Publications

Publications are currently not available