Metered Cryospray for the Treatment of Patients With Chronic Obstructive Pulmonary Disease With Chronic Bronchitis

NCT ID: NCT03892694

Last Updated: 2024-02-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

32 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-02-14

Study Completion Date

2024-06-01

Brief Summary

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To evaluate the relationship between airway structure and function in patients with chronic bronchitis treated with metered cryospray (MCS).

Detailed Description

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To identify the molecular and cellular targets of MCS treatment and determine the mechanistic relationship to airways remodelling in patients with chronic bronchitis. Phenotype, characterise and correlate clinical, physiological, histological and molecular parameters in patients with chronic bronchitis.

Conditions

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COPD Chronic Bronchitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Prospective, multi-centre, randomised, blinded, sham controlled trial with 1:1 randomisation. Sham-control arm subjects are eligible to receive treatment after the 6-month visit.
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors
Sham controlled.

Study Groups

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Treatment

MCS

Group Type ACTIVE_COMPARATOR

RejuvenAir System

Intervention Type DEVICE

Bronchial metered cryospray using RejuvenAir® System.

Sham Control

Sham

Group Type SHAM_COMPARATOR

Sham

Intervention Type OTHER

Sham control procedure

Interventions

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RejuvenAir System

Bronchial metered cryospray using RejuvenAir® System.

Intervention Type DEVICE

Sham

Sham control procedure

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Each Subject must meet the following criteria to be enrolled in the study:

1. Males and females ≥40 to \<80 years of age.
2. Subject is able to read, understand, and sign a written Informed Consent in order to participate in the study.
3. Subject has a diagnosis of CB and COPD and has been symptomatic for a minimum of two years. (Chronic Bronchitis is defined clinically as chronic productive cough for 3 months in each of 2 successive years in a patient in whom other causes of productive cough have been excluded).
4. Subject is classified as having moderate or severe (GOLD stage 2-3) airflow obstruction defined by a post-bronchodilator of =\>30% FEV1 to \<80% predicted with a baseline FEV1/FVC of \<0.70.
5. Subject has a COPD assessment tool (CAT) score of ≥10.
6. Subject is being treated according to current medically accepted treatment guidelines without successful resolution of chronic bronchitis and agrees to continue maintenance pulmonary/COPD medications (as defined per GOLD Standard for medications) for the duration of the study (subject must be on a regime of pulmonary medications for a minimum of 2 weeks prior to enrolment into the study).
7. Smoking history of at least 10 pack years.
8. Non-smoking for a minimum of 2 months prior to consent and agrees to continue not smoking for the duration of the study.
9. Subject is able to adhere to and undergo 4 bronchoscopic procedures (5 for control subjects accepting cross over option), in the opinion of the investigator or per hospital guidelines.
10. For women of childbearing potential: non-pregnant, non-lactating, and agree to practice an adequate birth control method (abstinence, combination barrier and spermicide, or hormonal) for the duration of the study.

Exclusion Criteria

A potential subject who meets any of the following criteria will be excluded from participation in this study:

1. Subject has had an acute pulmonary infection, exacerbation or pneumonia requiring medical treatment (with antibiotics and/or steroids) within 6 weeks of initially planned study bronchoscopy.
2. Diagnosis of asthma with an onset before 30 years of age.
3. Subject has Alpha-1 antitrypsin deficiency.
4. Subject has other origins of respiratory disease aside from chronic bronchitis and COPD.
5. Subject is using e-cigarettes, vaping or taking any oral or inhaled substances not prescribed by a physician.
6. Subject has untreatable or life-threatening arrhythmias, or history of inability to adequately oxygenate during a bronchoscopy, or has acute respiratory failure with hypercapnia.
7. Subject has bullous emphysema characterized as large bullae \>30 millimetres on HRCT; or subject has stenosis in the tracheobronchial system, tracheobronchomegaly, trachea-bronchomalacia, amyloidosis or cystic fibrosis.
8. Subject has clinically significant bronchiectasis
9. Subject has had a transplant procedure (any).
10. Subject has a known mucosal tear, has undergone prior lung surgery such as pneumonectomy, lobectomy, bullectomy, or lung volume reduction surgery, bronchial thermoplasty, rheoplasty or cryotherapy.
11. Subject has had a prior lung device procedure, including emphysema stent(s) implanted, lung coils, valves, lung denervation or other devices for emphysema.
12. Subject is unable to temporarily discontinue use of anticoagulant therapy: warfarin, Coumadin, LMWH, heparin, clopidrogel (or equal).
13. Subject has a serious medical condition, such as: uncontrolled coagulopathy or bleeding disorder, congestive heart failure, uncontrolled angina, myocardial infarction in the past year, renal failure, liver disease, cerebrovascular accident within the past 6 months, uncontrolled diabetes, uncontrolled hypertension, autoimmune disease or uncontrolled gastric reflux.
14. Subject has or is receiving chemotherapy or active radiation therapy within the past 6 months or is expected to receive chemotherapy during participation in this study.
15. Subject is or has been in another clinical investigational study within 6 weeks of enrolment.
16. Subject has known sensitivity to medication required to perform bronchoscopy (such as lidocaine, atropine, and benzodiazepines).
Minimum Eligible Age

40 Years

Maximum Eligible Age

79 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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CSA Medical, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pallav Shah, MD

Role: PRINCIPAL_INVESTIGATOR

The Royal Brompton Hospital

Locations

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University Medical Center Groningen

Groningen, , Netherlands

Site Status

The Royal Brompton Hospital

London, , United Kingdom

Site Status

Countries

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Netherlands United Kingdom

Other Identifiers

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022

Identifier Type: -

Identifier Source: org_study_id

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