CClinicalTrials.gg
CompletedNCT01437748Updated Oct 29, 2014

Closing Volume Interpretation and Bronchodilators Effect

A Phase 4 interventional study of Indacaterol maleate and Tiotropium bromide in Healthy and COPD, sponsored by University of Milan. Completed at 1 site in Italy. Open to participants aged 20 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-10-29.

Sponsored by University of Milan · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
20 Years to 85 Years
Sex
All
01

Study 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
Read the detailed description

Evaluation of small airways both in healthy and Chronic Obstructive Pulmonary Disease (COPD)subjects still today remains a big problem with implications in diagnostic and clinical management. The first lung alteration in smokers is the bronchiolitis and possibility to understand real damage on this anatomical district should be very interesting. The first point of the study will be the SAW evaluation. The two principal technics to do this are: Single Breath Test (SBT) and oesophageal balloon (EB). With SBT is possible to obtain the four expiration phases and so the shift from phase 3 to phase 4 identifying the point called closing capacity (CC). With EB is possible to obtain the lung static pressure-volume curve and after this to identify the point of closing volume (CV). The real concordance of CC and CV has never been studied both in healthy and COPD subjects.

The SBT is 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.

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.

So, after the identification of presence,absence and eventually concordance of CC and CV should be interesting to evaluate the possible effect on SAW of bronchodilators usually used in clinical practice. More in detail, the investigators will administered in random order and after basal evaluation of CV and CC dry powder of indacaterol 300 micrograms (mcg) or Tiotropium 18 mcg. After one hour of drug administration the investigators will repeat the maneuver for CC and CV evaluations. In this way, will be evaluated only the acute effect of the bronchodilators on lung hyperinflation. Each subjects will perform plethysmographic test too. Bronchodilators will be administered only to the COPD patients.

02

Conditions studied

  • Healthy
  • COPD

Keywords

  • Small Airways
  • Closing volume
  • Closing Capacity
  • Tiotropium
  • Indacaterol
  • COPD
03

In context

Lead sponsor

University of Milan is the lead sponsor of 177 studies on the registry; 27 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • 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

Exclusion criteria

Exclusion Criteria:

  • 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
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
40 participants (actual)

Study arms

  • Experimental
    Indacaterol maleate

    Indacaterol 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

    Drug: Indacaterol maleate

  • Active comparator
    Tiotropium bromide

    Tiotropium 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

    Drug: Tiotropium bromide

Interventions

  • DrugIndacaterol maleate

    Dry powder, 300 mcg, only one inhalation with 24 hours duration

    Also known as: Onbrez, Hirobriz, Onbrize, Oslif Breezehaler, Arcapta

  • DrugTiotropium bromide

    Dry powder, 18 mcg, only one inhalation with 24 hours duration

    Also known as: Spiriva

06

What researchers measure

Primary outcomes

  1. 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.

    Time frame: 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.

  2. 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.

    Time frame: 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

  1. Effect of Tiotropium or Indacaterol on CV and CC registration

    Possible effect on small airways by two distinct ultra long acting bronchodilators

    Time frame: 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

  2. Comparison concordance of CV and CC

    This data will be important to identify the best, easiest and most reliable test for clinical SAW evaluation

    Time frame: 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

07

Study locations

1 site
  • Pneumologia Riabilitativa-Fondazione Maugeri-Istituto Scientifico di Milano- IRCCS
    Milano, 20138, Italy
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 29, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01437748
Lead sponsor
University of Milan
Collaborators
Fondazione Salvatore Maugeri
Responsible party
Pierachille Santus (Head of Respiratory Rehabilitation Unit, University of Milan) — Principal investigator
First posted
Sep 21, 2011
Start date
Aug 2011
Primary completion
Sep 2014
Completion
Sep 2014
Last update
Oct 29, 2014

Study contacts

Pierachille Santus, MD, PhD
study director · Università degli Studi di Milano-Pneumologia Riabilitativa-Fondazione Salvatore Maugeri-MILANO

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2014. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion