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The Oscillation for ARDS Treated Early (OSCILLATE) Trial Pilot Study

This study has been completed.
Canadian Institutes of Health Research (CIHR)
McMaster University
University of Toronto
Information provided by:
Canadian Critical Care Trials Group Identifier:
First received: May 15, 2007
Last updated: January 29, 2009
Last verified: January 2009

May 15, 2007
January 29, 2009
June 2007
July 2008   (final data collection date for primary outcome measure)
  • adherence to our explicit mechanical ventilation protocols; [ Time Frame: duration of mechanical ventilation ]
  • to measure and understand the reasons for crossovers between groups [ Time Frame: duration of mechanical ventilation ]
  • to estimate the rate of patient recruitment, and understand barriers to recruitment
  • to document our ability to achieve close to complete follow‐up for mortality and quality of life in the 6 months following enrolment
Same as current
Complete list of historical versions of study NCT00474656 on Archive Site
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The Oscillation for ARDS Treated Early (OSCILLATE) Trial Pilot Study
The Oscillation for ARDS Treated Early (OSCILLATE) Trial Pilot Study

Acute respiratory distress syndrome (ARDS) is a common and catastrophic complication of critical illness related to burns, motor vehicle accidents, or overwhelming infection. ARDS kills 40-70% of affected patients. Patients with ARDS require life support in the form of a ventilator to breathe for them while their lungs heal. Ironically, ventilators can cause further damage to the lungs. We are conducting a study comparing 2 methods to protect the lungs from further damage. One method uses standard mechanical ventilators and the other uses a new type of ventilator, called a high frequency oscillator. We propose to test whether this high frequency oscillation will reduce the relative risk of dying from ARDS. 72 patients from 12 intensive care units in Canada and Saudi Arabia will participate in this preliminary study to test the feasibility of our study methods. If feasible, we plan to move on and conduct a large multinational study to definitively answer this question.

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Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Acute Respiratory Distress Syndrome
  • Device: High-frequency oscillation
  • Device: Conventional lung-open mechanical ventilation
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Ferguson ND, Cook DJ, Guyatt GH, Mehta S, Hand L, Austin P, Zhou Q, Matte A, Walter SD, Lamontagne F, Granton JT, Arabi YM, Arroliga AC, Stewart TE, Slutsky AS, Meade MO; OSCILLATE Trial Investigators; Canadian Critical Care Trials Group. High-frequency oscillation in early acute respiratory distress syndrome. N Engl J Med. 2013 Feb 28;368(9):795-805. doi: 10.1056/NEJMoa1215554. Epub 2013 Jan 22.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
December 2008
July 2008   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Patients of either sex, 16 years and above;
  • Acute onset of respiratory failure, with fewer than 2 weeks of new pulmonary symptoms;
  • Endotracheal intubation or tracheostomy;
  • Hypoxaemia - defined as a PaO2/FiO2 ≤ 200 mm Hg;
  • Bilateral alveolar consolidation (airspace disease) seen on frontal chest radiograph

Exclusion Criteria:

  • Remaining duration of mechanical ventilation < 48 hours, as judged by the attending physician;
  • Primary cause of acute respiratory failure judged by attending physician to be cardiac in origin;
  • Lack of commitment to ongoing life support;
  • Weight < 35 kg;
  • Severe chronic respiratory disease
  • Morbid obesity - defined as > 1 kg / cm body height;
  • Neurological conditions with risk of intracranial hypertension (hypercapnia should be avoided);
  • Neuromuscular disease that will result in prolonged need for mechanical ventilation;
  • Previous enrolment in this trial;
  • All inclusion criteria present for > 72 hours;
  • On HFO at the time of screening.
16 Years and older
Contact information is only displayed when the study is recruiting subjects
Canada,   Saudi Arabia
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Canadian Critical Care Trials Group
  • Canadian Institutes of Health Research (CIHR)
  • McMaster University
  • University of Toronto
Principal Investigator: Niall D Ferguson, MD, MSc University of Toronto
Principal Investigator: Maureen O Meade, MD, MSc McMaster University
Canadian Critical Care Trials Group
January 2009

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP