Evaluation of the Safety and Efficacy of TLD in Patients With COPD (AIRFLOW-3)
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| ClinicalTrials.gov Identifier: NCT03639051 |
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Recruitment Status :
Active, not recruiting
First Posted : August 20, 2018
Last Update Posted : September 8, 2023
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Sponsor:
Nuvaira, Inc.
Information provided by (Responsible Party):
Nuvaira, Inc.
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Brief Summary:
The purpose of this study is to confirm the safety and efficacy of the Nuvaira Lung Denervation System (Nuvaira System) in the treatment of COPD.
| Condition or disease | Intervention/treatment | Phase |
|---|---|---|
| COPD | Device: Targeted Lung Denervation (TLD) Other: Optimal Medical Care | Not Applicable |
The primary objective of this study is to demonstrate the superiority of treatment with the Nuvaira Lung Denervation System (Active Treatment arm) compared to a sham procedure (Sham Control arm) to decrease moderate or severe exacerbations in subjects with COPD on optimal medical care.
The secondary objective is to compare long-term safety, and other efficacy assessments between the Active Treatment arm and the Sham Control arm.
| Study Type : | Interventional (Clinical Trial) |
| Actual Enrollment : | 464 participants |
| Allocation: | Randomized |
| Intervention Model: | Parallel Assignment |
| Intervention Model Description: | Subjects will be randomized with equal allocation (1:1) into two arms: TLD therapy plus optimal medical care (Active Treatment) and optimal medical care (Sham Control). Randomization of subjects will be stratified based on investigational site, participation in a pulmonary rehabilitation maintenance program and baseline use of an inhaled corticosteroid at the time of enrollment. |
| Masking: | Double (Participant, Outcomes Assessor) |
| Masking Description: | Subject and assessor double-blinding will be maintained through 1 year post-procedure. |
| Primary Purpose: | Treatment |
| Official Title: | A Multicenter, Randomized, Sham-controlled Study to Evaluate Safety and Efficacy After Treatment With the Nuvaira™ Lung Denervation System in Patients With Chronic Obstructive Pulmonary Disease (COPD) |
| Actual Study Start Date : | May 23, 2019 |
| Estimated Primary Completion Date : | September 2024 |
| Estimated Study Completion Date : | September 2028 |
Resource links provided by the National Library of Medicine
| Arm | Intervention/treatment |
|---|---|
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Experimental: Active Treatment
Target Lung Denervation (TLD) with the Nuvaira Lung Denervation System (RF energy delivered) and optimal medical care for COPD.
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Device: Targeted Lung Denervation (TLD)
Targeted Lung Denervation (TLD) Therapy is a bronchoscopically guided, minimally invasive procedure using the Nuvaira™ Lung Denervation System.
Other Name: TLD, TLD Therapy Other: Optimal Medical Care Taking regular maintenance medication that minimally includes a long-acting muscarinic antagonist (LAMA) and a long-acting beta2-agonist (LABA). |
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Sham Comparator: Sham Control
Sham Targeted Lung Denervation (TLD) procedure with the Nuvaira Lung Denervation System (catheter placement and balloon deployment in all treatment locations, no RF energy delivered) and optimal medical care for COPD.
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Other: Optimal Medical Care
Taking regular maintenance medication that minimally includes a long-acting muscarinic antagonist (LAMA) and a long-acting beta2-agonist (LABA). |
Primary Outcome Measures :
- Moderate or severe COPD exacerbations [ Time Frame: Randomization to 12 Months ]A COPD exacerbation will be defined as a complex of respiratory events/symptoms (increase or new onset) of more than one of the following: cough, sputum, wheezing, dyspnea or chest tightness with at least one symptom lasting three days requiring treatment with antibiotics and/or systemic steroids (moderate exacerbation) and/or hospital admission (severe exacerbation).
Secondary Outcome Measures :
- Time to first severe COPD exacerbation [ Time Frame: Randomization to 12 Months ]Defined as a comparison between study arms of the survival distributions for events based on log-rank tests
- Time to first severe COPD exacerbation (Subgroup) [ Time Frame: Randomization to 12 months ]Defined as a comparison between study arms of the survival distributions for events based on log-rank tests, only for the subgroup of subjects who had a severe COPD exacerbation in the year prior to randomization.
- Change in St. George's Respiratory Questionnaire COPD Version (SGRQ-C) Total score [ Time Frame: Randomization to 12 months ]
Defined as a comparison between study arms of the mean change in FVC based on a linear model for change in SGRQ-C, adjusted for baseline SGRQ-C.
The SGRQ-C is a disease-specific HRQL questionnaire with a total and three component scores for: symptoms, activity and impacts; each score ranges from 0 (no impairment) to 100 (worst possible). A difference in four units in the SGRQ-C score is considered the minimum clinically important difference (MCID).
- Change in FVC [ Time Frame: Randomization to 12 Months ]Defined as a comparision between study arms of the mean change in FVC based on a linear model for change in FVC, adjusted for baseline FVC.
- Change in FEV1 [ Time Frame: Randomization to 12 months ]Defined as a comparison between study arms of the mean change in FEV1 based on a linear model for change in FEV1, adjusted for baseline FEV1.
- Transition Dyspnea Index (TDI) [ Time Frame: Randomization to 12 months ]Defined as a comparison between study arms of the TDI based on a linear model for change in TDI.
- Change in RV [ Time Frame: Randomization to 12 months ]Defined as a comparison between study arms of the mean change in RV based on a linear model for change in RV, adjusted for baseline RV.
- Time to first respiratory-related hospitalization [ Time Frame: Randomization to 12 Months ]Defined as a comparison between study arms of the survival distributions for events based on log-rank tests.
- Change in Short Form Health Survey (SF-36) total score [ Time Frame: Randomization to 12 Months ]
Defined as a comparison between study arms of the mean change in SF-36 total score based on a linear model for change in SF-36 total score, adjusted for baseline SF-36 total score.
SF-36 is composed of eight multi-item scales (Physical Functioning, Role-Physical, Bodily Pain, General Health, Vitality, Social Functioning, Role-Emotional, Mental Health), with scores for each of these scales (or dimensions) ranging from 0 to 100. Higher scores indicate higher HRQoL.
- CAT responders [ Time Frame: Randomization to 12 Months ]
Defined as a comparison between study arms of the proportion of subjects with a greater than or equal to 2 point decrease in CAT.
The CAT is a disease-specific HRQL with eight questions; each score ranges from 0 (no impairment) to 5 (worst possible). The CAT has a scoring range of 0-40. Higher scores denote a more severe impact of COPD on a patient's life. A difference in 2 units in the CAT score over 2 to 3 months suggests a clinically significant difference or change in health status.
Other Outcome Measures:
- Changes in quality of life [ Time Frame: Randomization to 6, 12 Months ]Change in St. George's Respiratory Questionnaire (SGRQ-C), COPD Assessment Test (CAT) and Short Health Survey (SF-36) scores
- Adverse event rates [ Time Frame: Randomization to 12 Months, 3 to 12 Months ]Defined as the total number of events per total number of treatment years including moderate or severe COPD exacerbations, severe COPD exacerbations, respiratory-related hospitalizations, and lower respiratory-related adverse events
- Time to first event [ Time Frame: 3 to 12 Months ]Defined as comparison between study arms of the survival distributions for events based on log-rank tests including moderate or severe COPD exacerbations, severe exacerbations and respiratory-related hospitalizations
- Changes in lung function [ Time Frame: Randomization to 12 Months ]Changes in Forced Expiratory Volume in 1 second (FEV1), Forced Vital Capacity (FVC) and Body plethysmography measures (IC, TLC, RV)
- Changes in dyspnea [ Time Frame: Randomization to 12 Months ]Changes in dyspnea including Modified Medical Research Council (mMRC) Dyspnea Scale scores and Baseline and Transition Dyspnea Indexes (BDI/TDI) scores
- Healthcare utilization [ Time Frame: Randomization to 12 Months ]Defined as respiratory-related unscheduled clinic visits, ER visits and hospitalizations
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| Ages Eligible for Study: | 40 Years and older (Adult, Older Adult) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | No |
Criteria
Inclusion Criteria:
- Subject ≥40 years of age at the time of consent;
- Women of child bearing potential must not be pregnant, evidenced by a negative pregnancy test (blood or urine) pre-treatment, or lactating and agree not to become pregnant for the duration of the study;
- Smoking history of at least 10 pack years;
- Not smoking or using any other inhaled substance (e.g., cigarettes, vaping, cannabis, pipes) for a minimum of 2 months prior to consent and agrees to not start for the duration of the study;
- Subject has received a flu vaccination within the 12 months prior to the procedure or agrees to obtain vaccination once it becomes available and agrees to annual vaccinations for the duration of the study;
- Resting SpO2 ≥89% on room air at the time of screening;
- CAT score ≥10 at the time of screening;
- Diagnosis of COPD with 25%≤ FEV1 ≤80% of predicted, PaCO2 ˂ 50 (if FEV1 ˂30%) and FEV1/FVC <70% (post-bronchodilator);
- Documented history of ≥ 2 moderate COPD exacerbations or ≥ 1 severe COPD exacerbation leading to hospitalization in the 12 months prior to consent with at least one exacerbation occurring while the subject was on optimal medical care (taking LAMA and a LABA, or scheduled SABA or SAMA instead of either a LAMA or LABA, not both, as regular respiratory maintenance medication);
- Subject is on optimal medical care at the time of consent;
- If subject has participated in a formal pulmonary rehabilitation program recently, program completion must have occurred ≥3 months prior to consent; if in a maintenance program, subject agrees to continue their current program through their 12-month follow-up visit;
- Subject is a candidate for bronchoscopy in the opinion of the physician or per hospital guidelines and is able to discontinue blood thinning medication peri-procedurally;
- The subject is able and agrees to complete all protocol required baseline and follow-up tests and assessments including taking certain medications (e.g., azithromycin, prednisolone/prednisone);
- Subject has provided written informed consent using a form that has been reviewed and approved by the Institutional Review Board (IRB)/Ethics Committee (EC).
Exclusion Criteria:
- Body Mass Index <18 or >35;
- Subject has an implantable electronic device and has not received appropriate medical clearance;
- Uncontrolled diabetes in the opinion of the investigator;
- Malignancy treated with radiation or chemotherapy within 1 year of consent;
- Asthma as defined by the current Global Initiative for Asthma (GINA) guidelines;
- Subject diagnosed with a dominant non-COPD lung disease or condition affecting the lungs, which is the main driver of the subjects clinical symptoms (e.g., cystic fibrosis, paradoxical vocal cord motion, eosinophilic granulomatosis with polyangiitis (EGPA), allergic bronchopulmonary aspergillosis, interstitial lung disease or active tuberculosis) or has a documented medical history of pneumothorax within 1 year of consent;
- Clinically relevant bronchiectasis, defined as severe single lobe or multilobar broncial wall thickening associated with airway dilation on CT scan leading to cough and tenacious sputum on most days;
- Pre-existing diagnosis of pulmonary hypertension, clinical evidence of pulmonary hypertension (e.g., cardiovascular function impairment including peripheral edema) and mPAP ≥25 mmHg at rest by right heart catheterization (or estimated right ventricular systolic pressure >50 mmHg by echocardiogram if no previous right heart catheterization);
- Myocardial infarction within last 6 months, EKG with evidence of life threatening arrhythmias or acute ischemia, pre-existing documented evidence of an LVEF <40%, stage C or D (ACC/AHA) or Class III or IV (NYHA) congestive heart failure, or any other past or present cardiac findings that make the subject an unacceptable candidate for a bronchoscopic procedure utilizing general anesthesia;
- Surgical procedure(s) on the stomach, esophagus or pancreas performed ≤2 years of consent or ongoing related symptoms within the past year;
- Symptomatic gastric motility disorder(s) (e.g., gastroparesis) as evidenced by a GCSI score ≥18.0, severe uncontrolled GERD (e.g., refractory heartburn, endoscopic esophagitis) or severe dysphagia (e.g., esophageal stricture, achalasia, esophageal spasm);
- Any disease or condition that might interfere with completion of a procedure or this study (e.g., structural esophageal disorder, life expectancy <3 years);
- Prior lung or chest procedure (e.g., lung transplant, LVRS, BLVR, lung implant, metal stent, valves, median sternotomy, bullectomy, lobectomy, segmentectomy or other interventional lung or chest procedure) performed ≤1 year of consent; NOTE: Any metal in the chest must be ≥5 cm away from the anticipated treatment location(s). Subjects with explanted lung valve(s) allowed if explant occurred ≥3 months prior to treatment.
- Daily use of >10 mg of prednisone or its equivalent at the time of consent;
- Chronic use of >40 mg MEDD opioid only medication per day;
- Known contraindication or allergy to medications required for bronchoscopy or general anesthesia (e.g., lidocaine, atropine, propofol, sevoflurane) that cannot be medically controlled;
- Baseline chest CT scan reveals bronchi anatomy cannot be fully treated with available catheter sizes, presence of severe emphysema >50%, lobar attenuation area or severe bullous disease (>1/3 hemithorax) (as determined by the CT core lab using a single density mask threshold of -950 HU) or discovery of a mass that requires treatment;
- Subject is currently enrolled in another interventional clinical trial that has not completed follow-up.
Information from the National Library of Medicine
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03639051
Locations
Show 33 study locations
Sponsors and Collaborators
Nuvaira, Inc.
Investigators
| Principal Investigator: | Frank Sciurba, MD | University of Pittsburgh Medical Center | |
| Principal Investigator: | Dirk-Jan Slebos, MD, PhD | University Medical Center Groningen |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
| Responsible Party: | Nuvaira, Inc. |
| ClinicalTrials.gov Identifier: | NCT03639051 |
| Other Study ID Numbers: |
D0543 |
| First Posted: | August 20, 2018 Key Record Dates |
| Last Update Posted: | September 8, 2023 |
| Last Verified: | September 2023 |
| Individual Participant Data (IPD) Sharing Statement: | |
| Plan to Share IPD: | Yes |
| Plan Description: | Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices). |
| Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Analytic Code |
| Time Frame: | Immediately following publication, ending 36 months following article publication. |
| Access Criteria: | Researchers whose proposed use of the data has been approved by a review committee identified for this purpose will have access to the data required to achieve aims in the approved proposal. Proposals should be directed to pjohnson@nuvaira.com. (Link to be provided). |
| Studies a U.S. FDA-regulated Drug Product: | No |
| Studies a U.S. FDA-regulated Device Product: | Yes |
| Device Product Not Approved or Cleared by U.S. FDA: | Yes |
| Product Manufactured in and Exported from the U.S.: | Yes |