Efficacy of Helium/Oxygen Compared to Air/Oxygen in Severe Exacerbation of Chronic Obstructive Pulmonary Disease (COPD) (ECHO/ICU)
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ClinicalTrials.gov Identifier: NCT01155310 |
Recruitment Status :
Terminated
(the observed event rate is lower than expected by the protocol hypothesis.)
First Posted : July 1, 2010
Last Update Posted : October 7, 2014
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Condition or disease | Intervention/treatment | Phase |
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Chronic Obstructive Pulmonary Disease | Drug: Helium/Oxygen 78%/22% Drug: Air/Oxygen | Phase 3 |
Patients eligible for this study are critically ill patients with COPD admitted in Intensive Care Unit for an exacerbation of their chronic disease with hypercapnic acute respiratory failure. The patients will receive an Helium/Oxygen mixture or an Air/Oxygen mixture for a maximum of 72 hours during Non-Invasive Ventilation (NIV) and NIV-free sessions.
During NIV sessions, gas mixtures will be administered using a ventilator suitable for NIV with either He/O2 or Air/O2 and a NIV facemask.
Patients will be followed until hospital discharge and then contacted by phone up to the 6th month after randomization.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 446 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | An International Phase III Randomised Trial Comparing in Severe Exacerbations of Chronic Obstructive Pulmonary Disease the Efficacy of Helium/Oxygen Versus Air/Oxygen Administered During Spontaneous Breathing and Intermittent Non-Invasive Ventilation. |
Study Start Date : | May 2010 |
Actual Primary Completion Date : | October 2013 |
Actual Study Completion Date : | June 2014 |

Arm | Intervention/treatment |
---|---|
Experimental: Helium/Oxygen
Helium/Oxygen 78%/22% will be administered for a maximum of 72 hours.
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Drug: Helium/Oxygen 78%/22%
The Helium/Oxygen mixture will be administered during NIV and NIV-free sessions for a maximum of 72 hours using study dedicated devices. Patients will then receive the Air/Oxygen mixture with usual devices. |
Active Comparator: Air/Oxygen
Air/Oxygen will be administered for a maximum of 72 hours.
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Drug: Air/Oxygen
The Helium/Oxygen mixture will be administered during NIV and NIV-free sessions for a maximum of 72 hours using study dedicated devices. Patients will then receive the Air/Oxygen mixture with usual devices. |
- Reduction of NIV failure [ Time Frame: 10 days (average) ]Endotracheal intubation and/or death
- Duration of ICU stay and duration of index hospitalisation [ Time Frame: 10 days (average) ]
- Duration of invasive ventilation [ Time Frame: 10 days (average) ]
- Adverse events [ Time Frame: 6 months (post-randomization) ]
- Medico-economic parameters [ Time Frame: 6 months ]Overall costs and cost-effectiveness
- Physiological and laboratory parameters [ Time Frame: 10 days (average) ]Systolic and diastolic blood pressures, heart rate, central body temperature, arterial oxygen saturation, haematology and serum biochemistry
- Duration of NIV sessions [ Time Frame: 10 days (average) ]Cumulative daily duration of NIV sessions and their number during each of the 3-day treatment period and globally
- Time interval between the discharge of the index ICU stay and the first re-admission in ICU for severe exacerbation of COPD [ Time Frame: 6 months (post-randomization) ]

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Ages Eligible for Study: | 35 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patient with known or suspected COPD
- Patient presenting current exacerbation of COPD with hypercapnic acute respiratory failure
- Patient eligible for Non-Invasive Ventilation (NIV)
- Patient admitted in an ICU
Exclusion Criteria:
- Patient who had lung transplant
- Patient having a contraindication to NIV
- Patient with tracheostomy
- Patient requiring Oxygen flow rate > 6 L/min or Inspired Oxygen Fraction (FIO2) > 0.50
- Patient admitted in the ICU for more than 24 hours and/or having received NIV in ICU for more than 6 hours (in total) for the current exacerbation of COPD

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01155310
Belgium | |
Cliniques Universitaires Saint Luc | |
Brussels, Belgium, 1200 | |
Les Cliniques Universitaires UCL Mont Godinne | |
Yvoir, Belgium, 5530 | |
France | |
Centre Hospitalier Universitaire Angers | |
Angers, France, 49933 | |
Centre Hospitalier Universitaire Pellegrin-Tripode | |
Bordeaux, France, 33076 | |
Hôpitaux de Chartes | |
Chartres, France, 28018 | |
CHU Clermont-Ferrand - Hôpital ESTAING | |
Clermont-ferrand, France, 63003 | |
Hôpital Henri Mondor | |
Creteil, France, 94010 | |
CHU NICE - Hopital Pasteur | |
Nice, France, 06002 | |
Hôpital Cochin | |
Paris, France, 75014 | |
Hôpital Européen Georges Pompidou | |
Paris, France, 75908 | |
Centre Hospitalier Intercommunal de Toulon La Seyne sur Mer - Hopital Sainte Musse | |
Toulon, France, 83056 | |
Italy | |
Azienda Ospedaliera Univeritaria Careggi | |
Firenze, Italy, 50134 | |
Switzerland | |
Hôpitaux Universitaires de Genève | |
Genève, Switzerland, 1211 | |
Tunisia | |
Hôpital Abderrahmen Mami | |
Ariana, Tunisia, 2080 | |
Centre Hospitalier Universitaire Fattouma Bourguiba | |
Monastir, Tunisia, 5000 | |
United Kingdom | |
University Hospital of North Tees | |
Stockton on Tees, United Kingdom, TS19 8 PE |
Study Chair: | Philippe JOLLIET, Prof. | Centre Hospitalier Universitaire Vaudois |
Responsible Party: | Air Liquide Santé International |
ClinicalTrials.gov Identifier: | NCT01155310 |
Other Study ID Numbers: |
ALMED-07-C3-009 |
First Posted: | July 1, 2010 Key Record Dates |
Last Update Posted: | October 7, 2014 |
Last Verified: | October 2014 |
Exacerbation of COPD Helium/Oxygen ICU Non-Invasive Ventilation |
Patient with known or suspected COPD patient Admitted in an ICU Patient presenting current exacerbation of COPD |
Lung Diseases Lung Diseases, Obstructive Pulmonary Disease, Chronic Obstructive Respiratory Tract Diseases |
Chronic Disease Disease Attributes Pathologic Processes |