The Spiration Valve System for the Treatment of Severe Emphysema
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Empyhsema
- Sponsor
- Olympus Corporation of the Americas
- Enrollment
- 107
- Locations
- 12
- Primary Endpoint
- Difference between treatment and control groups in the mean change in forced expiratory volume in one second (FEV1)
- Status
- Completed
- Last Updated
- 8 years ago
Overview
Brief Summary
This is a multicenter, prospective, randomized, controlled study being conducted in China to evaluate improvement of lung function after treatment with the Spiration Valve System as compared to medical management in the control group. The control group will be evaluated in the same manner as the treatment group.
The Spiration Valve is a small, umbrella-shaped, one-way valve that is placed inside the airways of one lung. It is used to redirect air from the less healthy to the more healthy parts of the lung. This helps to reduce over-inflation and may improve overall lung function and quality of life for people living with emphysema.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Patient has severe emphysema and high heterogeneity by visual assessment defined as:
- •a target lobe with ≥ 40% emphysema involvement and
- •≥ 15% difference with the ipsilateral lobe.
- •The target lobe and ipsilateral lobe will be separated with an intact fissure. An intact fissure will be estimated visually to be ≥90% complete after viewing the HRCT in 3 dimensions.
- •Patient has received optimal medical management and it has been stable for 6 weeks prior to baseline testing. If pulmonary rehabilitation has been recent, it will be completed at least 3 months prior to baseline testing.
- •Patient must be able to demonstrate physical ability to participate in the study by performing a 6-minute walk distance of ≥ 140 m.
- •Patient has abstained from cigarette smoking for 4 months and is willing to abstain throughout the study.
- •Severe dyspnea defined as a mMRC ≥
- •Patient's obstructive disease is severe as defined by:
- •FEV1 ≤ 45% of predicted
Exclusion Criteria
- •Patient has severe gas exchange abnormalities as defined by:
- •PCO2 \> 50 mm Hg (6.6 kPa), or
- •PaO2 \< 45 mm Hg (6.0 kPa) on room air
- •Patient has a BMI \< 15 kg/m2 or \> 35 kg/m2
- •Patient is unable to provide informed consent.
- •Patient is not an appropriate candidate for or is unable to tolerate, flexible bronchoscopy procedures.
- •Patient has dysrhythmia or cardiovascular disease that poses a risk during exercise.
- •Patient has history of 4 or more hospitalizations for COPD exacerbation or respiratory infections in the past year or has had a COPD exacerbation in the 3 months prior to baseline testing.
- •Patient has bronchitis with sputum production \> 60 ml per day.
- •Patient has an active asthma component to their disease or requires more than 15 mg of prednisone daily (20 mg prednisolone).
Outcomes
Primary Outcomes
Difference between treatment and control groups in the mean change in forced expiratory volume in one second (FEV1)
Time Frame: Baseline and 3 Months
Secondary Outcomes
- Incidence of device-related serious adverse events(Baseline and 3 Months)
- Difference between responder rates in the treatment and control groups, with a responder defined as ≥ 15% improvement in FEV1(Baseline and 3 Months)
- Target lobe volume reduction as measured by QCT(Baseline and 3 Months)
- Health Status as measured by St. George's Respiratory Questionnaire (SGRQ) and COPD Assessment Test (CAT)(Baseline and 3 Months)
- Dyspnea as measured by Modified Medical Research Council Questionnaire (mMRC)(Baseline and 3 Months)
- Exercise capacity as measured by Six Minute Walk Test (6MWT)(Baseline and 3 Months)
- Hyperinflation as measured by Residual Volume (RV)(Baseline and 3 Months)