NCT06332885

Brief Summary

This is a multicenter, prospective, observational surveillance enrolling 140 consecutive patients with severe emphysema who are candidates for bronchoscopic lung volume reduction using Zephyr Endobronchial Valve at up to 20 centers across Japan and followed for 12 months.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
140

participants targeted

Target at P50-P75 for all trials

Timeline
23mo left

Started Mar 2024

Longer than P75 for all trials

Geographic Reach
1 country

17 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress53%
Mar 2024Mar 2028

Study Start

First participant enrolled

March 12, 2024

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

March 20, 2024

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 27, 2024

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2028

Last Updated

December 13, 2024

Status Verified

December 1, 2024

Enrollment Period

3.1 years

First QC Date

March 20, 2024

Last Update Submit

December 9, 2024

Conditions

Keywords

Bronchoscopic lung volume reductionZephyr Valves

Outcome Measures

Primary Outcomes (1)

  • Incidence rate of pneumothorax at 45-days post-Zephyr Valve index procedure.

    The percentage of study subjects who experience pneumothorax within 45-days post-Zephyr Valve index procedure.

    45-days post-Zephyr Valve index procedure

Other Outcomes (6)

  • Forced Expiratory Volume in 1 second (FEV1)

    Month 3, 6, 12

  • Residual Volume (RV)

    Month 3, 12

  • Treated lobe volume reduction (TLVR)

    Day 45, Month 12

  • +3 more other outcomes

Study Arms (1)

Single Group Assignment

Bronchoscopic lung volume reduction with Zephyr Valves

Device: Zephyr Endobronchial Valve

Interventions

Zephyr Valve provides an alternative technique to achieve bronchoscopic lung volume reduction (BLVR) using a minimally invasive approach. Zephyr Valve is a tiny unidirectional valve. During BLVR, multiple valves are placed to occlude a hyperinflated lobe of the lungs, allowing air to escape while blocking airflow into the treated lobe. This is intended to result in a reduction in lung volume and hyperinflation in the targeted area. Consequently, the remaining lobes can expand more fully, the overall lung works more efficiently, with resultant improvement in overall lung function in patients with hyperinflation associated with severe emphysema.

Single Group Assignment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The surveillance population will be adult patients (18 years or older) in Japan with hyperinflation of the lungs due to severe emphysema who are considered by their treating physician to be appropriate candidates for BLVR using Zephyr Valve and confirmed to have little to no collateral ventilation (CV-) in the target lobe. The surveillance will enroll all patients treated at the participating hospitals who provide written informed consent.

You may qualify if:

  • Patient is deemed eligible for BLVR using Zephyr Valve, as determined by their treating physician in accordance with Japanese guidelines and approved instruction for use. These include:
  • Recent respiratory rehabilitation completed within the last 6 months
  • Not actively smoking (for at least 4 months)
  • TLC ≥ 100%
  • RV ≥ 175%
  • FEV1 15-45% post-bronchodilator
  • MWD 100-500 m
  • mMRC score ≥ 2
  • No coagulation disorder
  • No evidence of active respiratory infection
  • Patient has little to no collateral ventilation (CV-) between the target and ipsilateral lobe as confirmed by Chartis prior to undergoing BLVR.
  • Patient is willing and able to provide informed consent to allow data collection.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (17)

Tosei General Hospital

Aichi, Japan

RECRUITING

Gifu Prefectural Medical Center

Gifu, Japan

RECRUITING

Kanagawa Cardio Chest Center

Kanagawa, Japan

RECRUITING

Kanazawa University Hospital

Kanazawa, Japan

RECRUITING

St Marianna University Hospital

Kawasaki, Japan

RECRUITING

Matsusaka Civic Hospital

Mie, Japan

RECRUITING

Nagasaki University Hospital

Nagasaki, Japan

RECRUITING

Nagoya Medical Center

Nagoya, Japan

RECRUITING

Okayama Medical Center

Okayama, Japan

RECRUITING

Kinki Chuo Chest Medical Center

Osaka, Japan

RECRUITING

Hokkaido University Hospital

Sapporo, Japan

RECRUITING

Tohoku University Hospital

Sendai, Japan

RECRUITING

Shiga University Hospital

Shiga, Japan

RECRUITING

Tokyo National Hospital

Tokyo, Japan

RECRUITING

Fujita Health University Hospital

Toyoake, Japan

RECRUITING

Dokkyo University Hospital (Pulmonary Medicine and Clinical Immunology)

Utsunomiya, Japan

NOT YET RECRUITING

Dokkyo University Hospital

Utsunomiya, Japan

RECRUITING

MeSH Terms

Conditions

EmphysemaPulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and SymptomsLung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease Attributes

Study Officials

  • Ryan Melloy, MBA

    Pulmonx Corporation

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 20, 2024

First Posted

March 27, 2024

Study Start

March 12, 2024

Primary Completion (Estimated)

March 31, 2027

Study Completion (Estimated)

March 31, 2028

Last Updated

December 13, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

All data will be aggregated and analyzed. No IPD will be made available for sharing to other researchers.

Locations