Chronic Obstructive Pulmonary DiseaseINVENTNCT03821311
Investigating the Effect of Nasal High Flow Oxygen Therapy on Regional Lung Function
A study testing Computed tomography in people with Chronic Obstructive Pulmonary Disease and Nasal High Flow, run by University Hospital, Grenoble at 1 site in France.
Trial summary
This study aims to assess the effect of nasal high flow oxygen therapy on regional function measured by volumetric computed tomography, in patients with chronic obstructive pulmonary disease. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Chronic Obstructive Pulmonary Disease, Nasal High Flow, Dynamic Volumetric Computed Tomography
- What is being tested?
- Computed tomography
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 8 participants
- Where
- 1 siteFrance
- Study dates
- 6 Dec 2018to 18 Jun 2019
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Stable, moderate to severe COPD, defined as follows:
- Moderate: FEV1/FVC < 0.7 or lower limit of normal, and 30 < FEV1 ≤ 60 percent predicted; Severe: FEV1/FVC < 0.7 or lower limit of normal, and FEV1 ≤ 30 percent predicted
- Indication for CT imaging as part of routine workup.
- Written informed consent signed
Who cannot join
- Acute disease condition such as infection, respiratory or cardiac failure
- Persons referred to in Articles L1151-5 to L1151-8 and L1122-1-2 of the French Public Health Code: Declared pregnant, parturient or lactating, persons deprived of their liberty by judicial or administrative decision, minors, adults who are legally protected or unable to express consent, etc.
- Evolving neoplastic disease
- Patient without social security health care coverage
- Subject in an exclusion period from another study
- Any contraindication to NHF such as nasal or upper airway bleeding, secretion, tumor, recent surgery; cervical, nasal or skull fracture.
Trial locations and contacts
1 site in 1 country.
About this study
This study aims to assess the effect of nasal high flow oxygen therapy on regional function measured by volumetric computed tomography, in patients with chronic obstructive pulmonary disease.
Read the detailed description
Nasal high flow (NHF) is a non-invasive breathing therapy that is based on the delivery of heated and humidified air at flow rates that exceed peak inspiratory flow, via a large-caliber nasal cannula. It delivers a fraction of inspired oxygen (FiO2) from 21% to 100%, with a flow rate up to 60 L·min-1.
The therapy is used for a variety of disease conditions including chronic obstructive pulmonary disease (COPD). Patients with COPD frequently manifest flow limitation during resting tidal breathing, through dynamic compression of the airways, which is attributed to a loss of parenchymal tethering of the airways. In patients with severe COPD and respiratory failure, improved oxygenation and ventilation may reduce mortality. There are limited clinical data available in adult applications of NHF and on the effectiveness of NHF in patients with stable moderate or severe COPD.
The mechanisms through which NHF affects the respiratory system are still being investigated. Two of the proposed mechanisms of action of NHF therapy are the generation of 3-5 cmH20 positive airway pressure during expiration and washout of the nasopharyngeal dead space. Positive airway pressure has been shown to improve oxygenation, ventilation-perfusion matching and respiratory rates, while nasopharyngeal washout reduces the anatomical dead space and thereby improves alveolar ventilation.
Our working hypothesis is that positive nasopharyngeal pressure generated by NHF particularly during expiration can help maintain small peripheral airways patent, thereby reducing the amount of gas trapping.
Gas trapping can be quantified based on densitometric analysis of registered computerized tomography images obtained at high and low lung volumes.
- Conditions
- Chronic Obstructive Pulmonary Disease, Nasal High Flow, Dynamic Volumetric Computed Tomography
- Being tested
- Computed tomography
- Medical subject headings
- Pulmonary Disease, Chronic Obstructive
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Computed tomographyRadiation
Also called CT
End-inspiratory/end-expiratory CT is repeated 3 times corresponding to the 3 studied conditions: At baseline, through expiratory resistive loading using an adjustable PEP mask, and after 5 min of nasal high flow therapy at 25 L/min.
| Study group | Role | What they receive |
|---|---|---|
| Computed tomography examination | Experimental | Each patient will undergo a low-dose supine position chest CT scan including end-inspiratory and expiratory acquisitions, corresponding to the routine protocol for COPD patients, except that this end-inspiratory/end-expiratory CT is repeated 3 times for total of 6 CT acquisitions. Receives: Radiation: Computed tomography |
What is being measured
The primary outcome is the main question the study is designed to answer.
Gas trapping (expressed as percent total lung volume)
Measured: 30 minutes
Secondary outcomes (2)
Regional lung ventilation distribution
Regional change in attenuation between end-expiration and end-inspiration, based on CT image
Measured: 30 minutes
Coefficient of variation of regional lung ventilation
Measured: 30 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Jan 2019
- Study start6 Dec 2018
- Primary completion18 Jun 2019
- Study completion18 Jun 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Chronic Obstructive Pulmonary DiseaseStudies of the same condition, open and under way.
- More trials run by University Hospital, GrenobleThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- It's a prospective, single-center, pilot, pathophysiological study.
- Masking
- None (open label)
- Enrolment
- 8 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Grenoble
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03821311
- Sponsor's protocol ID
- 38RC17.376
- Acronym
- INVENT
- Status last verified
- Dec 2019
- First submitted
- 17 Dec 2018
- Last updated
- 27 Dec 2019
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Vestbo J, Hurd SS, Agusti AG, Jones PW, Vogelmeier C, Anzueto A, Barnes PJ, Fabbri LM, Martinez FJ, Nishimura M, Stockley RA, Sin DD, Rodriguez-Roisin R. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summary. Am J Respir Crit Care Med. 2013 Feb 15;187(4):347-65. doi: 10.1164/rccm.201204-0596PP. Epub 2012 Aug 9.
PubMed 22878278Stubbing DG, Pengelly LD, Morse JL, Jones NL. Pulmonary mechanics during exercise in subjects with chronic airflow obstruction. J Appl Physiol Respir Environ Exerc Physiol. 1980 Sep;49(3):511-5. doi: 10.1152/jappl.1980.49.3.511.
PubMed 7204175Frat JP, Thille AW, Mercat A, Girault C, Ragot S, Perbet S, Prat G, Boulain T, Morawiec E, Cottereau A, Devaquet J, Nseir S, Razazi K, Mira JP, Argaud L, Chakarian JC, Ricard JD, Wittebole X, Chevalier S, Herbland A, Fartoukh M, Constantin JM, Tonnelier JM, Pierrot M, Mathonnet A, Beduneau G, Deletage-Metreau C, Richard JC, Brochard L, Robert R; FLORALI Study Group; REVA Network. High-flow oxygen through nasal cannula in acute hypoxemic respiratory failure. N Engl J Med. 2015 Jun 4;372(23):2185-96. doi: 10.1056/NEJMoa1503326. Epub 2015 May 17.
PubMed 25981908Pisani L, Vega ML. Use of Nasal High Flow in Stable COPD: Rationale and Physiology. COPD. 2017 Jun;14(3):346-350. doi: 10.1080/15412555.2017.1315715. Epub 2017 May 1.
PubMed 28459282Curley GF, Laffy JG, Zhang H, Slutsky AS. Noninvasive respiratory support for acute respiratory failure-high flow nasal cannula oxygen or non-invasive ventilation? J Thorac Dis. 2015 Jul;7(7):1092-7. doi: 10.3978/j.issn.2072-1439.2015.07.18. No abstract available.
PubMed 26380720Corley A, Caruana LR, Barnett AG, Tronstad O, Fraser JF. Oxygen delivery through high-flow nasal cannulae increase end-expiratory lung volume and reduce respiratory rate in post-cardiac surgical patients. Br J Anaesth. 2011 Dec;107(6):998-1004. doi: 10.1093/bja/aer265. Epub 2011 Sep 9.
PubMed 21908497Riera J, Perez P, Cortes J, Roca O, Masclans JR, Rello J. Effect of high-flow nasal cannula and body position on end-expiratory lung volume: a cohort study using electrical impedance tomography. Respir Care. 2013 Apr;58(4):589-96. doi: 10.4187/respcare.02086.
PubMed 23050520Spahija J, de Marchie M, Grassino A. Effects of imposed pursed-lips breathing on respiratory mechanics and dyspnea at rest and during exercise in COPD. Chest. 2005 Aug;128(2):640-50. doi: 10.1378/chest.128.2.640.
PubMed 16100149O'Donnell DE, Sanii R, Anthonisen NR, Younes M. Expiratory resistive loading in patients with severe chronic air-flow limitation. An evaluation of ventilatory mechanics and compensatory responses. Am Rev Respir Dis. 1987 Jul;136(1):102-7. doi: 10.1164/ajrccm/136.1.102.
PubMed 3605825Mueller RE, Petty TL, Filley GF. Ventilation and arterial blood gas changes induced by pursed lips breathing. J Appl Physiol. 1970 Jun;28(6):784-9. doi: 10.1152/jappl.1970.28.6.784. No abstract available.
PubMed 5419502Galban CJ, Han MK, Boes JL, Chughtai KA, Meyer CR, Johnson TD, Galban S, Rehemtulla A, Kazerooni EA, Martinez FJ, Ross BD. Computed tomography-based biomarker provides unique signature for diagnosis of COPD phenotypes and disease progression. Nat Med. 2012 Nov;18(11):1711-5. doi: 10.1038/nm.2971. Epub 2012 Oct 7.
PubMed 23042237Fricke K, Tatkov S, Domanski U, Franke KJ, Nilius G, Schneider H. Nasal high flow reduces hypercapnia by clearance of anatomical dead space in a COPD patient. Respir Med Case Rep. 2016 Aug 26;19:115-7. doi: 10.1016/j.rmcr.2016.08.010. eCollection 2016.
PubMed 27668173Kybic J, Unser M. Fast parametric elastic image registration. IEEE Trans Image Process. 2003;12(11):1427-42. doi: 10.1109/TIP.2003.813139.
PubMed 18244700Gibson GJ, Loddenkemper R, Lundback B, Sibille Y. Respiratory health and disease in Europe: the new European Lung White Book. Eur Respir J. 2013 Sep;42(3):559-63. doi: 10.1183/09031936.00105513. No abstract available.
PubMed 24000245Cohen JG, Broche L, Machichi M, Ferretti GR, Tamisier R, Pepin JL, Bayat S. Nasal High Flow at 25 L/min or Expiratory Resistive Load Do Not Improve Regional Lung Function in Patients With COPD: A Functional CT Imaging Study. Front Physiol. 2021 Jun 10;12:683316. doi: 10.3389/fphys.2021.683316. eCollection 2021.
PubMed 34177626
Study at a glance
From the registry record, last updated by the sponsor on 27 Dec 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigating the Effect of Nasal High Flow Oxygen Therapy on Regional Lung Function
- ClinicalTrials.gov ID
- NCT03821311
- Acronym / sponsor ID
- INVENT / 38RC17.376
- Conditions
- Chronic Obstructive Pulmonary Disease, Nasal High Flow, Dynamic Volumetric Computed Tomography
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 8 participants (actual)
- Lead sponsor
- University Hospital, GrenobleUniversity, hospital or other
- Study start
- 6 Dec 2018 (actual)
- Primary completion
- 18 Jun 2019 (actual)
- Study completion
- 18 Jun 2019 (actual)
- First posted
- 29 Jan 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to assess the effect of nasal high flow oxygen therapy on regional function measured by volumetric computed tomography, in patients with chronic obstructive pulmonary disease.
Detailed description
Nasal high flow (NHF) is a non-invasive breathing therapy that is based on the delivery of heated and humidified air at flow rates that exceed peak inspiratory flow, via a large-caliber nasal cannula. It delivers a fraction of inspired oxygen (FiO2) from 21% to 100%, with a flow rate up to 60 L·min-1.
The therapy is used for a variety of disease conditions including chronic obstructive pulmonary disease (COPD). Patients with COPD frequently manifest flow limitation during resting tidal breathing, through dynamic compression of the airways, which is attributed to a loss of parenchymal tethering of the airways. In patients with severe COPD and respiratory failure, improved oxygenation and ventilation may reduce mortality. There are limited clinical data available in adult applications of NHF and on the effectiveness of NHF in patients with stable moderate or severe COPD.
The mechanisms through which NHF affects the respiratory system are still being investigated. Two of the proposed mechanisms of action of NHF therapy are the generation of 3-5 cmH20 positive airway pressure during expiration and washout of the nasopharyngeal dead space. Positive airway pressure has been shown to improve oxygenation, ventilation-perfusion matching and respiratory rates, while nasopharyngeal washout reduces the anatomical dead space and thereby improves alveolar ventilation.
Our working hypothesis is that positive nasopharyngeal pressure generated by NHF particularly during expiration can help maintain small peripheral airways patent, thereby reducing the amount of gas trapping.
Gas trapping can be quantified based on densitometric analysis of registered computerized tomography images obtained at high and low lung volumes.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- It's a prospective, single-center, pilot, pathophysiological study.
| Arm | Type | Receives |
|---|---|---|
| Computed tomography examination | Experimental | Radiation: Computed tomographyEach patient will undergo a low-dose supine position chest CT scan including end-inspiratory and expiratory acquisitions, corresponding to the routine protocol for COPD patients, except that this end-inspiratory/end-expiratory CT is repeated 3 times for total of 6 CT acquisitions. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Stable, moderate to severe COPD, defined as follows:
- Moderate: FEV1/FVC < 0.7 or lower limit of normal, and 30 < FEV1 ≤ 60 percent predicted; Severe: FEV1/FVC < 0.7 or lower limit of normal, and FEV1 ≤ 30 percent predicted
- Indication for CT imaging as part of routine workup.
- Written informed consent signed
Key exclusion criteria (6 listed)
- Acute disease condition such as infection, respiratory or cardiac failure
- Persons referred to in Articles L1151-5 to L1151-8 and L1122-1-2 of the French Public Health Code: Declared pregnant, parturient or lactating, persons deprived of their liberty by judicial or administrative decision, minors, adults who are legally protected or unable to express consent, etc.
- Evolving neoplastic disease
- Patient without social security health care coverage
- Subject in an exclusion period from another study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Computed tomographyAlso: CTEnd-inspiratory/end-expiratory CT is repeated 3 times corresponding to the 3 studied conditions: At baseline, through expiratory resistive loading using an adjustable PEP mask, and after 5 min of nasal high flow therapy at 25 L/min. | Radiation | Computed tomography examination |
Primary outcome
Gas trapping (expressed as percent total lung volume)
Time frame: 30 minutes
2 secondary outcomes
Regional lung ventilation distribution
Time frame: 30 minutes
Coefficient of variation of regional lung ventilation
Time frame: 30 minutes
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Dec 2019.
- Background: PubMed 22878278Vestbo J, Hurd SS, Agusti AG, Jones PW, Vogelmeier C, Anzueto A, Barnes PJ, Fabbri LM, Martinez FJ, Nishimura M, Stockley RA, Sin DD, Rodriguez-Roisin R. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summary. Am J Respir Crit Care Med. 2013 Feb 15;187(4):347-65. doi: 10.1164/rccm.201204-0596PP. Epub 2012 Aug 9.
- Background: PubMed 7204175Stubbing DG, Pengelly LD, Morse JL, Jones NL. Pulmonary mechanics during exercise in subjects with chronic airflow obstruction. J Appl Physiol Respir Environ Exerc Physiol. 1980 Sep;49(3):511-5. doi: 10.1152/jappl.1980.49.3.511.
- Background: PubMed 25981908Frat JP, Thille AW, Mercat A, Girault C, Ragot S, Perbet S, Prat G, Boulain T, Morawiec E, Cottereau A, Devaquet J, Nseir S, Razazi K, Mira JP, Argaud L, Chakarian JC, Ricard JD, Wittebole X, Chevalier S, Herbland A, Fartoukh M, Constantin JM, Tonnelier JM, Pierrot M, Mathonnet A, Beduneau G, Deletage-Metreau C, Richard JC, Brochard L, Robert R; FLORALI Study Group; REVA Network. High-flow oxygen through nasal cannula in acute hypoxemic respiratory failure. N Engl J Med. 2015 Jun 4;372(23):2185-96. doi: 10.1056/NEJMoa1503326. Epub 2015 May 17.
- Background: PubMed 28459282Pisani L, Vega ML. Use of Nasal High Flow in Stable COPD: Rationale and Physiology. COPD. 2017 Jun;14(3):346-350. doi: 10.1080/15412555.2017.1315715. Epub 2017 May 1.
- Background: PubMed 26380720Curley GF, Laffy JG, Zhang H, Slutsky AS. Noninvasive respiratory support for acute respiratory failure-high flow nasal cannula oxygen or non-invasive ventilation? J Thorac Dis. 2015 Jul;7(7):1092-7. doi: 10.3978/j.issn.2072-1439.2015.07.18. No abstract available.
- Background: PubMed 21908497Corley A, Caruana LR, Barnett AG, Tronstad O, Fraser JF. Oxygen delivery through high-flow nasal cannulae increase end-expiratory lung volume and reduce respiratory rate in post-cardiac surgical patients. Br J Anaesth. 2011 Dec;107(6):998-1004. doi: 10.1093/bja/aer265. Epub 2011 Sep 9.
- Background: PubMed 23050520Riera J, Perez P, Cortes J, Roca O, Masclans JR, Rello J. Effect of high-flow nasal cannula and body position on end-expiratory lung volume: a cohort study using electrical impedance tomography. Respir Care. 2013 Apr;58(4):589-96. doi: 10.4187/respcare.02086.
- Background: PubMed 16100149Spahija J, de Marchie M, Grassino A. Effects of imposed pursed-lips breathing on respiratory mechanics and dyspnea at rest and during exercise in COPD. Chest. 2005 Aug;128(2):640-50. doi: 10.1378/chest.128.2.640.
- Background: PubMed 3605825O'Donnell DE, Sanii R, Anthonisen NR, Younes M. Expiratory resistive loading in patients with severe chronic air-flow limitation. An evaluation of ventilatory mechanics and compensatory responses. Am Rev Respir Dis. 1987 Jul;136(1):102-7. doi: 10.1164/ajrccm/136.1.102.
- Background: PubMed 5419502Mueller RE, Petty TL, Filley GF. Ventilation and arterial blood gas changes induced by pursed lips breathing. J Appl Physiol. 1970 Jun;28(6):784-9. doi: 10.1152/jappl.1970.28.6.784. No abstract available.
- Background: PubMed 23042237Galban CJ, Han MK, Boes JL, Chughtai KA, Meyer CR, Johnson TD, Galban S, Rehemtulla A, Kazerooni EA, Martinez FJ, Ross BD. Computed tomography-based biomarker provides unique signature for diagnosis of COPD phenotypes and disease progression. Nat Med. 2012 Nov;18(11):1711-5. doi: 10.1038/nm.2971. Epub 2012 Oct 7.
- Background: PubMed 27668173Fricke K, Tatkov S, Domanski U, Franke KJ, Nilius G, Schneider H. Nasal high flow reduces hypercapnia by clearance of anatomical dead space in a COPD patient. Respir Med Case Rep. 2016 Aug 26;19:115-7. doi: 10.1016/j.rmcr.2016.08.010. eCollection 2016.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Computed tomography in people with Chronic Obstructive Pulmonary Disease and Nasal High Flow, run by University Hospital, Grenoble at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 27 Dec 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Gas trapping (expressed as percent total lung volume) (time frame: 30 minutes). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03821311, which also lists 15 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Dec 2019.