An Evaluation of the AeriSeal System for CONVERTing Collateral Ventilation Status in Patients With Severe Emphysema
CONVERT_II
1 other identifier
interventional
200
9 countries
33
Brief Summary
This is a prospective, open-label, multi-center, single-arm study planned to enroll 200 subjects with heterogeneous emphysema and collateral ventilation (CV) in the target lobe. Subjects will undergo instillation of AeriSeal Foam in the target lobe and subsequent assessment of CV status using Chartis Pulmonary Assessment System. Subjects with CV- status will then undergo placement of Zephyr Valve in the target lobe for bronchoscopic lung volume reduction (BLVR) and be followed for 24 months.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2024
Longer than P75 for not_applicable
33 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
September 5, 2023
CompletedFirst Posted
Study publicly available on registry
September 13, 2023
CompletedStudy Start
First participant enrolled
February 22, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 31, 2028
March 13, 2026
March 1, 2026
3.4 years
September 5, 2023
March 11, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Converters, responder rate
The percentage of study subjects that successfully convert from a positive collateral ventilation status (CV+) in the treated lobe to having little to no collateral ventilation (CV-) by Chartis.
45 days post-AeriSeal treatment (index or repeat)
Secondary Outcomes (4)
Post-bronchodilator forced expiratory volume in 1 second (FEV1), responder rate
Month 6 post-Zephyr Valve
Residual volume (RV), responder rate
Month 6 post-Zephyr Valve
Treated lobe volume reduction (TLVR) by high-resolution computed tomography (HRCT), responder rate
Month 6 post-Zephyr Valve
St. George's Respiratory Questionnaire (SGRQ), responder rate
Month 6 post-Zephyr Valve
Other Outcomes (16)
Post-bronchodilator forced expiratory volume in 1 second (FEV1) change
Month 3, Month 6, Month 12, Month 24
Post-bronchodilator forced expiratory volume in 1 second (FEV1), responder rate
Month 3, Month 12, Month 24
Residual volume (RV), responder rate
Month 3, Month 12, Month 24
- +13 more other outcomes
Study Arms (1)
AeriSeal
EXPERIMENTALAll enrolled subjects meeting final eligibility will undergo the AeriSeal procedure to block collateral ventilation by closing the lobar fissure gaps or collateral air channels.
Interventions
The AeriSeal System comprises AeriSeal Foam and the AeriSeal Balloon Catheter Preparation Kit that is used for bronchoscopic delivery of AeriSeal Foam to the targeted regions of the lung.
Eligibility Criteria
You may qualify if:
- Subject is willing and able to provide informed consent and to participate in the study.
- Subject is aged ≥ 40 and ≤ 80 years at the time of the ICF signature date.
- Subject has completed a documented pulmonary rehabilitation (in clinic or home-based) program within 12 months prior to Baseline.
- Subject has stopped smoking for at least 8 weeks prior to the ICF signature date as confirmed by carboxyhemoglobin or cotinine levels.
- Subject has a recent HRCT meeting the scan parameter requirements and performed within 3 months of the ICF signature date with the following findings at -910 Hounsfield Units:
- At least one (1) lobe with segmental emphysema destruction score ≥ 50%.
- Subject has heterogenous emphysema, defined as difference in emphysema destruction score of ≥ 15 between the density scores of the target lobe and the ipsilateral non-target lobe(s) per QCT report with % voxel density of \< -910 HU. For non-target lobes that include the RML, calculate the combination of non-target lobes as a single density score using volume-weighted percent.
- LUL, LLL, RUL, RLL, or RUL+RML are targets for valve intervention.
- Subject has a gap in the interlobar fissure that corresponds to one or more segments and the fissure(s) contacting the target lobe is ≥ 80% complete per QCT report.
- Subject has 98% of the fissure gap confined to a maximum of 3 segments within the target lobe per Fissure Targeting Report (FTR).
- Subject has 6MWD ≥ 150 m and ≤ 450 m.
- Subject has clinically significant dyspnea with an mMRC score of ≥ 2.
- Subject has post-bronchodilation FEV1 ≥ 15% predicted and ≤ 45% predicted.
- Subject has an FEV1/FVC ratio of \< 0.7.
- Subject has post-bronchodilation TLC, measured by body plethysmography, ≥ 100% predicted.
- +5 more criteria
You may not qualify if:
- Subject has prior lung volume reduction surgery, lobectomy or pneumonectomy, lung transplantation, airway stent placement, pleurodesis, or BLVR of any type, except BLVR using Zephyr Valve with \< 50% TLVR at 6 months, followed by valve removal \> 6 months prior to ICF signature date.
- Subject has visible radiological abnormality on HRCT scan such as pulmonary nodule greater than 0.8 cm in diameter (does not apply, if present for 2 years or more without increase in size or if deemed benign by biopsy) or active pulmonary infection (e.g., unexplained parenchymal infiltrate, significant interstitial lung disease or significant pleural disease).
- Post-COVID-19 pathology on CT, including ground glass opacities with or without consolidation, adjacent pleura thickening, interlobular septal thickening, or air bronchograms.
- Large bullae encompassing greater than 1/3 of the total lung.
- Subject had 3 or more COPD exacerbations requiring hospitalization within 12 months preceding the ICF signature date or a COPD exacerbation requiring hospitalization within 8 weeks of the ICF signature date. Subjects may be re-considered for future enrollment.
- Subject has asthma as their primary diagnosis.
- Subject has chronic bronchitis (defined as greater than 4 tablespoons of sputum production per day) as their primary diagnosis.
- Subject has clinically significant bronchiectasis.
- Subjects with evidence of active respiratory infection should be considered for enrollment only after satisfactory resolution.
- Subject requires invasive ventilatory support. Note: The use of Continuous Positive Airway Pressure (CPAP) or BiPAP devices for sleep apnea is permitted.
- Subject has severe gas exchange abnormalities as defined by any one of the following tests, conducted at rest, on room air, as tolerated.
- PaCO2 ≥ 50 mm Hg (6.7 kPa)
- PaO2 \< 45 mm Hg (6.0 kPa)
- Subject has pulmonary hypertension, defined as mean pulmonary systolic pressure \> 45 mm Hg.
- Subject has known documented alpha-1 antitrypsin deficiency.
- +16 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (36)
Banner University Medical Center
Phoenix, Arizona, 85006, United States
Saint Francis Hospital and Medical Center (Trinity Health of New England)
Hartford, Connecticut, 06105, United States
Orlando Health
Orlando, Florida, 32806, United States
Northwestern University
Chicago, Illinois, 60611, United States
University of Chicago Medical Center
Chicago, Illinois, 60637, United States
OSF Saint Francis Medical Center
Peoria, Illinois, 61606, United States
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02115, United States
Brigham Lung Center
Boston, Massachusetts, 02115, United States
Henry Ford Hospital
Detroit, Michigan, 48202, United States
Cleveland VA Northeast
Cleveland, Ohio, 44106, United States
Penn Medicine
Philadelphia, Pennsylvania, 19107, United States
Temple University
Philadelphia, Pennsylvania, 19140, United States
Allegheny General Hospital
Pittsburgh, Pennsylvania, 15212, United States
University of Pittsburgh Medical Center (UPMC)
Pittsburgh, Pennsylvania, 15213, United States
Fort Sanders Regional Medical Center (StatCare)
Knoxville, Tennessee, 37916, United States
University of Texas Southwestern
Dallas, Texas, 75235, United States
Inova Fairfax Hospital
Falls Church, Virginia, 22042, United States
Medical College of Wisconsin (MCW)
Milwaukee, Wisconsin, 53226, United States
Royal Adelaide Hospital
Adelaide, Australia, Australia
Wesley Hospital
Brisbane, Australia, Australia
Macquarie University
Macquarie Park, Australia, Australia
Klinik Floridsdorf
Vienna, Austria, Austria
Rigshospitalet
Copenhagen, Denmark, Denmark
CHU Limoges
Limoges, France, France
Hopital Bichat-APHP
Paris, France, France
CHRU Strasbourg
Strasbourg, France, France
CHU Toulouse
Toulouse, France, France
Ruhrlandklink, Uni Essen
Essen, Germany, Germany
Universitätsklinikum Halle
Halle, Germany, Germany
Asklepios Klinik Barmbek
Hamburg, Germany, Germany
Thoraxklinik am Universitats klinikum Heidelberg
Heidelberg, Germany, Germany
Lungenklinik Hemer
Hemer, Germany, Germany
ASST Spedali Civili, University Hospital
Brescia, Italy, Italy
University Medical Center Groningen
Groningen, Netherlands, Netherlands
Hospital Universitario y Politecnico La Fe
Valencia, Spain, Spain
Royal Brompton Hospital
London, England, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Narinder Shargill, PhD
Pulmonx Corporation
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
September 5, 2023
First Posted
September 13, 2023
Study Start
February 22, 2024
Primary Completion (Estimated)
June 30, 2027
Study Completion (Estimated)
March 31, 2028
Last Updated
March 13, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share
All data will be aggregated and analyzed. No IPD be made available for sharing to other researchers.