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RecruitingNCT07068438Updated Sep 2, 2025

Clinical Study of the Pulsed Electric Field Ablation System in Chronic Obstructive Pulmonary Disease

An interventional study of Pulse electric field ablation system and Sham Procedure in Chronic Bronchitis and COPD (Chronic Obstructive Pulmonary Disease), sponsored by Suzhou Hengruihongyuan Medical Technology Co. LTD. Recruiting at 13 sites in China. Open to participants aged 35 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-09-02.

Sponsored by Suzhou Hengruihongyuan Medical Technology Co. LTD · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Aug 2026, 3 months ago, but the record still lists the study as recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
210
Allocation
Randomized
Ages
35 Years to 80 Years
Sex
All
01

Study summary

This is a prospective, randomized, parallel group, sham-controlled, multicenter clinical trial. The objective is to evaluate the safety and effectiveness of pulsed electric field ablation system manufactured by Suzhou Hengruihongyuan Medical Technology Co., Ltd. for the treatment of the symptoms of chronic bronchitis in adult COPD patients with moderate to severe chronic bronchitis. A total of 210 patients will be randomized into the experimental group and the sham group (2:1).

02

Conditions studied

  • Chronic Bronchitis
  • COPD (Chronic Obstructive Pulmonary Disease)
03

In context

Bronchitis, Chronic

209 studies on the registry are indexed under Bronchitis, Chronic; 14 are open to participants now.

This study's planned enrollment of 210 is above the median of 101 across 154 interventional studies indexed under Bronchitis, Chronic.

Browse Bronchitis, Chronic studies →

Lead sponsor

Suzhou Hengruihongyuan Medical Technology Co. LTD is the lead sponsor of 8 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
35 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Subject's age is ≥35 years and ≤80 years.
  2. Patient has chronic bronchitis, defined as productive cough for three months in each of two successive years, whereas other causes of productive cough have been ruled out.
  3. Patient has a CAT score ≥ 10.
  4. Patient has an SGRQ score ≥ 25.
  5. Patient's responses to the first two questions of the CAT instrument sum to ≥ 7 points or the sum is 6 points and the patient's total CAT score is > 20 points.
  6. Patient has /FVC \< 0.70.
  7. Patient has a pre-procedure post-bronchodilator FEV1 percent predicted of ≥ 30%.
  8. Patient is receiving guideline directed pharmacotherapy which includes one or more long acting bronchodilator (LAMA, LABA) with or without an inhaled for at least 8 weeks prior to randomization, unless the patient has attempted such therapy within the past 1 year without significant clinical response or had an adverse reaction.
  9. In the opinion of the Primary investigator, patient is able to undergo 2 bronchoscopies under general anesthesia and is able to adhere to the study follow-up schedule.
  10. signed by the patient or legal representative.

Exclusion criteria

Exclusion Criteria:

  1. Patient has known unresolved lower respiratory tract infection (e.g., pneumonia, mycobacterium avium-intracellulare infection (MAI), fungus, tuberculosis).
  2. Patient has a -dependent condition requiring >10 mg of oral corticosteroid per day.
  3. Patient has any implantable electronic device (e.g., pacemaker, cardioverter defibrillator) that cannot be turned off during the procedure.
  4. Patient has a history of ventricular tachy-arrhythmia or atrial tachyarrhythmia within the past two years, or sinus bradycardia with a heart rate of under than 45 beats per minute, unless the arrhythmia has been treated and/or patient is in regular rhythm during the screening phase.
  5. Subject has lung cancer.
  6. Patient has a pulmonary nodule or cavity that in the judgement of the Primary investigator may require intervention during the course of the study.
  7. Patient had prior lung surgery, such as lung transplant, LVRS, lobectomy, lung implant/prosthesis, metal airway stent, valves, coils or bullectomy.
  8. Patient has emphysema of greater than or equal to 50% as quantified on baseline HRCT scan as determined by the CT Core Lab.
  9. Patient has asthma based on Global Initiative for Asthma (GINA) criteria.
  10. Patient has clinically significant bronchiectasis influencing the patient's clinical symptoms of cough and phlegm.
  11. Patient has actively smoked (including tobacco, marijuana, e-cigarettes, vaping, etc.) within the last 2 months.
  12. Patient is unable to walk over 225 meters in 6 minutes.
  13. Patient 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, or myocardial infarction in the past year, renal failure, liver disease, cerebrovascular accident within the past 6 months, uncontrolled diabetes ( >8%), uncontrolled hypertension (diastolic BP >100mmHg) or disease requiring treatment with medications or a disease requiring chemotherapy).
  14. Patient has uncontrolled GERD.
  15. Patient has known severe pulmonary hypertension (pulmonary artery SP ≥ 50 mmHg).
  16. Patient has a known sensitivity to medication required to perform bronchoscopy (i.e., lidocaine, atropine, benzodiazepines).
  17. Patient is pregnant, nursing, or planning to get pregnant during study duration.
  18. Patient is currently participating in another clinical study involving an product.
  19. Patient is receiving anticoagulation for a cardiovascular indication and, in the Primary investigator's opinion, unable to suspend anticoagulant medications (i.e., aspirin, clopidogrel, warfarin) during bronchoscopy in accordance.
  20. Patient has known airway colonization with drug-resistant bacteria such as Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus, Burkholderia cepacia complex, Mycobacterium tuberculosis, Mycobacterium abscessus, Trichoderma, or other significant fungi.
Terms in these criteria, in plain language(8)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

FEV1

From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
210 participants (estimated)

Study arms

  • Experimental
    Pulsed Electric Field Ablation System

    Device: Pulse electric field ablation system

  • Sham comparator
    Sham Procedure

    Device: Sham Procedure

Interventions

  • DevicePulse electric field ablation system

    Bronchial rheoplasty (BR) is a staged procedure wherein pulsed electric fields are delivered to the right lung in the first treatment visit, and then the left lung is treated approximately 1 month later.

  • DeviceSham Procedure

    Staged sham procedure: the catheter is inserted into the right lung, but energy is not delivered; then the same steps are performed in the left lung approximately 1 month later (no energy is delivered to the patient).

06

What researchers measure

Primary outcomes

  1. COPD Assessment Test (CAT) Score

    Mean change from baseline in the COPD Assessment Test (CAT) total score, the total CAT score ranges from 0 to 40, where lower scores represent lower symptom burden

    Time frame: 6 months

Secondary outcomes

  1. COPD Assessment Test (CAT) score

    Mean change from baseline in the COPD Assessment Test (CAT) total score, the total CAT score ranges from 0 to 40, where lower scores represent lower symptom burden.

    Time frame: 3 and 12 months

  2. COPD Assessment Test (CAT) Score (items 1 and 2)

    Mean change from baseline in mean total scores for items 1 and 2 of the bilateral CAT scores (ranges from 0 to 10), where lower scores represent lower symptom burden.

    Time frame: 3, 6 and 12 months

  3. St. George Respiratory Questionnaire (SGRQ-C)

    Change from baseline in the total score of the COPD of the St. George Respiratory Questionnaire (SGRQ-C), the total score ranges from 0 to 100, where lower scores represent lower symptom burden.

    Time frame: 6 and 12 months

  4. Change from baseline in Modified Medical Research Council dyspnea scale (mMRC) scores

    Change from baseline in Modified Medical Research Council dyspnea scale (mMRC) scores, rated on a scale from 0 to 4, where lower grades represent lower symptom burden.

    Time frame: 3, 6 and 12 months

  5. COPD Exacerbations

    Rate of moderate and severe COPD exacerbations.

    Time frame: 12 months

  6. Pulmonary Function (FEV1)

    Changes from baseline in forced expiratory volume in the first second (FEV1) during a pulmonary function test (PFT).

    Time frame: 3, 6 and 12 months

  7. Pulmonary Function (FEV1 /FVC ratio)

    Changes from baseline in the FEV1 /FVC ratio during a pulmonary function test (PFT).

    Time frame: 3, 6 and 12 months

  8. The six minute walking test (6MWT)

    Change from baseline in the 6-minute walk test.

    Time frame: 6 and 12 months

  9. Technical success rate

    Success defined as: * Experimental group: Successful placement of the device, successful discharge, and successful withdrawal. * Control group: Successful placement of the device, and successful withdrawal. Calculation method: Patients with technical success/ total cases of subjects in the same group x 100%.

    Time frame: Approximately 15-minutes after device removal

07

Study locations

1 of 13 sites recruiting
  • Anhui Chest Hospital
    Hefei, Anui 230022, China
    Not yet recruiting
    • Ling Xu · Contact
    • Ling Xu · Principal investigator
  • Affiliated Beijing Chaoyang Hospital of Capital Medical University
    Beijing, Beijing Municipality 100020, China
    Not yet recruiting
    • Feng Wang · Contact
    • Feng Wang · Principal investigator
  • Hospital Emergency General
    Beijing, Beijing Municipality 100028, China
    Not yet recruiting
    • Yunzhi Zhou · Contact
    • Yunzhi Zhou · Principal investigator
  • The First People's Hospital of Changzhou
    Changzhou, Jiangsu 213003, China
    Not yet recruiting
    • Chong Li · Contact
    • Chong Li · Principal investigator
  • The Second Affiliated Hospital of Soochow University
    Suzhou, Jiangsu 215005, China
    Not yet recruiting
    • Zengli Zhang · Contact
    • Zengli Zhang · Principal investigator
  • The Second People's Hospital of Wuxi
    Wuxi, Jiangsu 214002, China
    Not yet recruiting
    • Xun Wang · Contact
    • Xun Wang · Principal investigator
  • The Affiliated Hospital of Xuzhou Medical College
    Xuzhou, Jiangsu 221006, China
    Not yet recruiting
    • Bi Chen · Contact
    • Bi Chen · Principal investigator
  • The First Affiliated Hospital Of Nanchang University
    Nanchang, Jiangxi 330006, China
    Not yet recruiting
    • Longhua Sun · Contact
    • Longhua Sun · Principal investigator
  • Sir Run Run Shaw Hospital, affiliated with Zhejiang University School of Medicine
    Hangzhou, Zhejiang 310016, China
    Recruiting
    • Enguo Chen · Contactcheneg@srrs.com · +86 13588706779
    • Enguo Chen · Principal investigator
  • Jinhua Central Hospital
    Jinhua, Zhejiang 321000, China
    Not yet recruiting
    • Dan Zhu · Contact
    • Dan Zhu · Principal investigator
  • Lishui Central Hospital
    Lishui, Zhejiang 323000, China
    Not yet recruiting
    • Weiwen Li · Contact
    • Weiwen Li · Principal investigator
  • Quzhou People's Hospital
    Quzhou, Zhejiang 324000, China
    Not yet recruiting
    • Xuru Jin · Contact
    • Xuru Jin · Principal investigator
  • Shaoxing People's Hospital
    Shaoxing, Zhejiang 312000, China
    Not yet recruiting
    • Jian Sun · Contact
    • Jian Sun · Principal investigator
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Sep 2025; primary completion for Aug 2026, 11 months later.

Of 24 interventional studies with no phase under Bronchitis, Chronic, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 47. This study's planned 11 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 23, 2025
First posted
Jul 16, 2025
StartEst.
Sep 1, 2025
Primary completionEst.
Aug 1, 2026
CompletionEst.
Feb 1, 2027
Last update
Sep 2, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 2, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07068438
Lead sponsor
Suzhou Hengruihongyuan Medical Technology Co. LTD
Responsible party
Sponsor
First posted
Jul 16, 2025
Start date
Sep 1, 2025 (estimated)
Primary completion
Aug 1, 2026 (estimated)
Completion
Feb 1, 2027 (estimated)
Last update
Sep 2, 2025

Study contacts

Enguo Chen
Contact
cheneg@srrsh.com
+86 13588706779

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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