Closing Volume Interpretation and Bronchodilators Effect
Small Airways Evaluation and Peripherical Effect of Two Bronchodilators in Healthy Subjects and Stable COPD Patients
1 other identifier
interventional
40
1 country
1
Brief Summary
- The gold standard measures to evaluate small airways (SAW) "in vivo" is not well understood
- Two tests are today used to measure SAW but real results concordance is not clear
- These problems have a small evidence
- Data about real effect of bronchodilators on SAW (eg Tiotropium and Indacaterol) has never been studied
- Only an acute bronchodilators effect, after one hour of drugs inhalation, will be evaluated
- The time frame of study evaluations per patient will be of three hours: one hour for basal test; one hour rest after drug administration; one hour for post bronchodilators test
- All enrolled subjects will be outpatients and will be evaluated after 24 hours of inhalatory drugs washout
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4 healthy
Started Aug 2011
Longer than P75 for phase_4 healthy
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2011
CompletedFirst Submitted
Initial submission to the registry
September 12, 2011
CompletedFirst Posted
Study publicly available on registry
September 21, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2014
CompletedOctober 29, 2014
October 1, 2014
3.1 years
September 12, 2011
October 28, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Closing Volume (CV)
The evaluation of CV will be performed by EB. The oesophageal balloon is introduced by nose and located in distal oesophageal tract. By pressure transducer the correct position will be confirmed. After the investigators will perform the evaluation of lung volume, trans pleural pressure and flow. These parameters will be registered at tidal volume, during forced expiration and finally during hyperventilation.
Participants will be followed for the duration of medical office stay an expected average of 3 hours. The outcome measure will be assessed for the end of october 2011 and will be presented within december 2011.
Closing Capacity (CC)
The evaluation of CC will be measuired by Single Breath Test (SBT) and performed by pneumotachograph matched with a gas analyzer. Patient breath normally for some seconds, exhales to residual volume (RV) and after that deeply inhales oxygen (100%) to total lung capacity (TLC), then the patient exhales slowly to RV. This test will be repeated a minimum of three times.
Participants will be followed for the duration of medical office stay an expected average of 3 hours. The outcome measure will be assessed for the end of october 2011 and will be presented within december 2011
Secondary Outcomes (2)
Effect of Tiotropium or Indacaterol on CV and CC registration
Participants will be followed for the duration of medical office stay an expected average of 3 hours. The outcome measure will be assessed for the end of october 2011 and will be presented within december 2011
Comparison concordance of CV and CC
Participants will be followed for the duration of medical office stay an expected average of 3 hours. The outcome measure will be assessed for the end of october 2011 and will be presented within december 2011
Study Arms (2)
Indacaterol maleate
EXPERIMENTALIndacaterol 300 mcg via Breezehaler Inhaler will be administered by a third independent investigator not involved in the performing of any of the tests decribed, following a randomization list
Tiotropium bromide
ACTIVE COMPARATORTiotropium 18 mcg, via HandiHaler inhaler will be administered by a third independent investigator not involved in the performing of any of the tests decribed, following a randomization list
Interventions
Dry powder, 300 mcg, only one inhalation with 24 hours duration
Dry powder, 18 mcg, only one inhalation with 24 hours duration
Eligibility Criteria
You may qualify if:
- Signature of informed consent
- Healthy subjects with age from 20 to 80 yars old and never smokers
- COPD diagnosis
- COPD with age from 50 to 85 years old
- History of COPD at least of noe year
- Respiratory stable conditions at least of one month
- Any basal FEV1 expressed in % of predicted value
- FEV1/Forced Vital Capacity (FVC) less than 70%
- COPD with history of former or active smokers with minimum of 20 pack year
You may not qualify if:
- Pregnancy
- FEV1/FVC more than 70%
- Known deficit of alpha 1 antitrypsin
- Subjects submitted to a Lung Volume Reduction Surgery (LVRS)
- Subjects with known positivity to Human Immunodeficiency Virus (HIV)
- Known intolerance to a nasogastric balloon
- Misuse of alcool or drugs
- Absence of compliance in performing respiratory test
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Milanlead
- Fondazione Salvatore Maugericollaborator
Study Sites (1)
Pneumologia Riabilitativa-Fondazione Maugeri-Istituto Scientifico di Milano- IRCCS
Milan, Milano, 20138, Italy
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Pierachille Santus, MD, PhD
Università degli Studi di Milano-Pneumologia Riabilitativa-Fondazione Salvatore Maugeri-MILANO
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Head of Respiratory Rehabilitation Unit
Study Record Dates
First Submitted
September 12, 2011
First Posted
September 21, 2011
Study Start
August 1, 2011
Primary Completion
September 1, 2014
Study Completion
September 1, 2014
Last Updated
October 29, 2014
Record last verified: 2014-10