Primary objective: To evaluate the efficacy of targeted lung denervation (TLD) in addition to optimal medical care to reduce moderate or severe exacerbations and related hospitalizations, compared with optimal medical care alone, in subjects with…
ID
Source
Brief title
Condition
- Respiratory disorders NEC
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Moderate or severe COPD exacerbations through 12 months;
For the purpose of this study 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 at least three days requiring treatment with
antibiotics and/or systemic steroids (moderate exacerbation) and/or
hospitalization (severe exacerbation). (Vogelmeier, 2011)
The primary analysis of the primary endpoint is defined as a comparison of the
probability of subjects having a moderate or severe COPD exacerbation (primary
endpoint event) between the Active Treatment arm and the Sham Control arm based
on a log-rank test, and will be based on the time from the date of
randomization to the date of a subject*s first primary endpoint event, or to
the close date of the 12-month visit window for subjects who do not experience
a primary endpoint event. Subjects who have not experienced a primary endpoint
event and are lost-to-follow-up or
withdrawn prior to the close of the 12-month visit window will be censored at
the date of their last known status.
Secondary outcome
1. Time to first severe COPD exacerbation (defined as a comparison between
study arms of the survival distributions for events based on log-rank tests).
Time frame: randomization to 12 months.
2. Time to first severe COPD exacerbation (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. Time frame: randomization to 12 months.
3. Change in SGRQ-C (defined as a comparison between study arms of the mean
change in SGRQ-C based on a linear model for change in SGRQ-C, adjusted for
baseline SGRQ-C). Time frame: randomization to 12 months.
4. Change in FVC (defined as a comparison between study arms of the mean change
in FVC based on a linear model for change in FVC, adjusted for baseline FVC).
Time frame: randomization to 12 months.
5. Change in FEV1 (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). Time frame: randomization to 12 months.
6. Transition Dyspnea Index (TDI) (defined as a comparison between study arms
of the TDI based on a linear model for change in TDI). Time frame:
randomization to 12 months.
7. Change in RV (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
frame: randomization to 12 months.
8. Time to first respiratory-related hospitalization (defined as a comparison
between study arms of the survival distributions for events based on log-rank
tests). Time frame: randomization to 12 months.
9. Change in SF-36 total score (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). Time frame:
randomization to 12 months.
10. CAT responders (defined as a comparison between study arms of the
proportion of subjects with a >=2 point decrease in CAT). Time frame:
randomization to 12 months.
Background summary
It is well known that increased smooth muscle tone in patients with Chronic
Obstructive Pulmonary Disease (COPD) is due in part to increased
parasympathetic drive. Pharmacologic blockade of vagus nerve input to airway
smooth muscle in the human lung leads to improvements in lung function and
overall health status. Once daily-inhaled tiotropium improves peak flow by 25%
and causes a 9% sustained improvement in the forced expiratory volume in one
second (FEV1) in patients with COPD with a baseline FEV1 <= 65% of predicted. It
is also known that mechanical disruption of the vagus nerve as it passes
between the brain and the lung can also lead to improvements in pulmonary
function. Intrathoracic bi-lateral vagotomy was investigated as a treatment for
COPD and asthma as early as the 1940s, and most recently in the 1980s. In
patients with severe COPD, surgical resection of the vagus nerve led to a 30%
improvement in FEV1 in one patient with severe COPD. In severe asthma, vital
capacity (VC) has also been shown to improve from 2.36 L to 2.79 L (18%) and
maximal voluntary ventilation (a parameter linearly related to FEV1) increased
from 43 L/min to 50 L/min (16%). Prior to vagotomy, histamine caused a 25%
reduction in VC compared to only 9% after vagotomy. Sputum production was
essentially stopped in 8/11 patients with heavy sputum. However, due to a high
risk of procedure related mortality (as high as 28%) following bilateral
thoracotomies, surgical resection of the vagus nerve in the lung has never been
routinely practiced. More recently, knowledge of the long-term effects of lung
denervation has been demonstrated in two patient populations: 1) lung
transplant patients; and, 2) patients who received sleeve resections (removal
of the mainstem bronchus and associated airway nerve trunks) as treatments for
lung cancer. Lung transplant recipients have both vagus nerve fibers and
bronchial arteries severed during surgery. In the early days of lung
transplantation, there was a concern that lung denervation would lead to
worsened physiologic function (i.e. decrease of Hering-Breuer reflex, decrease
of cough reflex). These issues have not been observed did not come to bear, and
lung transplant patients have not been found to have to have any clinical
issues due to their lung denervation. In lung cancer patients, it has been
shown that there is no difference in outcomes, stage by stage, for patients who
received a sleeve resection versus a traditional pneumonectomy for treatment.
It is generally believed that airway nerve trunk branches of the vagus nerves
that influence airway smooth muscle constriction do not re-grow following
transplantation, though there is some evidence that afferent sensory pathways
may regenerate over time. Four previous studies, IPS-I (NCT01483534), IPS-II
(NCT01716598) and AIRFLOW 1 and 2 (NCT02058459) have established feasibility
and safety of targeted lung denervation (TLD) therapy in the COPD population
utilizing the TLD-system. In the AIRFLOW 1 also the optimal dose was
established. This AIRFLOW-3 study is FDA trial that will investigate the
efficacy and safety of the treatment.
Study objective
Primary objective: To evaluate the efficacy of targeted lung denervation (TLD)
in addition to optimal medical care to reduce moderate or severe exacerbations
and related hospitalizations, compared with optimal medical care alone, in
subjects with chronic obstructive pulmonary disease (COPD).
Secondary objective: To evaluate the long-term safety and other efficacy
assessments of targeted lung denervation (TLD) in addition to optimal medical
care compared with optimal medical care alone.
Study design
This is a prospective, multi-center, randomized, sham-controlled, double-blind
(subject and follow-up assessor(s)), safety and efficacy study.
Intervention
Bronchoscopic targeted lung denervation (TLD) treatment with the Nuvaira* Lung
Denervation System.
Study burden and risks
Risks associated with the Nuvaira-system are minimized by design. Risks are
minimized under this protocol due to: - Operators with a high degree of
experience in interventional bronchoscopy - Extensive non-clinical evaluation
of the device and therapy (animal and bench top testing) - The use of standard
medical grade materials in the manufacture of the device - The well-established
nature of the bronchoscopic procedure and technique used to perform this
procedure - Use of RF energy which is well understood in medical applications
based upon literature review and pre-clinical evaluations performed to date, it
is expected that TLD therapy may provide some benefit to the subject; however,
there may be no direct benefits of study participation. However, subject
participants will undergo an enhanced level of clinical scrutiny of pulmonary
health compared to routine clinical care, which may provide some indirect
health benefits.
3750 Annapolis Lane Suite 105
Plymouth Minnesota 55447
US
3750 Annapolis Lane Suite 105
Plymouth Minnesota 55447
US
Listed location countries
Age
Inclusion criteria
1) Subject >=40 years of age at the time of consent;
2) 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;
3) Smoking history of at least 10 pack years;
4) 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;
5)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;
6) SpO2 >=89% on room air at the time of screening;
7) CAT score >=10 at the time of screening;
8) Diagnosis of COPD with 25% <= FEV1 <=80% of predicted, PaCO2 < 50 (if FEV1
<30%) and FEV1/FVC <70% (post-bronchodilator);
9) 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 a LAMA and a LABA, or
scheduled SABA or SAMA instead of either a LAMA or a LABA, not both, as regular
respiratory maintenance
medication);
10)Subject is on optimal medical care at the time of consent;
11) 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;
NOTE: Prior participation in a pulmonary rehabilitation program is not required
for inclusion in the study.
12) Subject is a candidate for bronchoscopy in the opinion of the physician
investigator or per hospital guidelines and is able to discontinue blood
thinning medication peri-procedurally;
13) 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);
14) 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
1) Body Mass Index <18 or >35;
2) Subject has an implantable electronic device and has not received
appropriate medical clearance;;
3) Uncontrolled diabetes in the opinion of the investigator;
4) Malignancy treated with radiation or chemotherapy within 1 years of consent;
5) Asthma as defined by the current Global Initiative for Asthma (GINA)
guidelines;
6)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 years of consent;
7) Clinically relevant bronchiectasis, defined as severe single lobe or
multilobar bronchial wall thickening associated with airway dilation on CT scan
leading to cough and tenacious sputum on most days;
8) Pre-existing diagnosis of pulmonary hypertension, clinical evidence of
pulmonary hypertension,
(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)
9) Myocardial infarction within last 6 months, EKG with evidence of life
threatening arrhythmias or acute ischemia, pre-existing documented evidence of
a 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;
10) Surgical procedures(s) on the stomach, esophagus or pancreas performed <=2
years prior to consent or ongoing related symptoms within the past year;
11)Symptomatic gastric motility disorder(s) (e.g. gastroparesis) as evidenced
by GCSI score >=18.0, severe uncontrolled GERD (e.g., refractory heartburn,
endoscopic esophagitis) or severe dysphagia (e.g., esophageal stricture,
achalasia, esophageal spasm); NOTE: Subjects with a hiatal hernia are allowed
if subject meets all other enrollment criteria.
12) Any disease or condition that might interfere with completion of a
procedure or this study (e.g., structural esophageal disorder, life expectancy
<3 years);
13) 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);
14) Daily use of >10 mg of prednisone or its equivalent at the time of consent;
15) Chronic use of *40 mg MEDD opioid only medication per day;
16) Known contraindication or allergy to medications required for bronchoscopy
or general anesthesia (e.g., lidocaine, atropine, propofol, sevoflurane) that
cannot be medically controlled;
17) 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;
18) Subject is currently enrolled in another interventional clinical trial that
has not completed follow-up.
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
Register | ID |
---|---|
ClinicalTrials.gov | NCT03639051 |
CCMO | NL68937.042.19 |