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Trial Comparing High Versus Standard Dose Oseltamivir in Severe Influenza Infection in ICU (ROSII)

This study has been terminated.
(Patient population no longer available.)
Hoffmann-La Roche
Information provided by:
University of Manitoba Identifier:
First received: November 5, 2009
Last updated: June 9, 2011
Last verified: June 2011

Primary Objectives:

The primary objective of the trial is to compare the antiviral efficacy of a 10 day course of standard (75 mg bid) and high-dose (225 mg bid) oseltamivir (or equivalent doses in mild-moderate renal failure) in the treatment of severe influenza infections.

The hypothesis is that high dose oseltamivir will increase the proportion of patients with negative reverse transcriptase (RT)-PCR detection of influenza viral RNA (and viral culture, at selected sites) at Day 5 post-treatment.

An important secondary objective of the trial, which reflects the main clinical objective, is to determine the difference in the numbers of ventilator days between the standard-dose and high-dose groups

Condition Intervention Phase
Influenza A Virus Drug: Oseltamivir Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blinded Controlled Trial Comparing High vs Standard Dose Oseltamivir in Severe, Influenza Infection in ICU. "ROSII Study"

Resource links provided by NLM:

Further study details as provided by University of Manitoba:

Primary Outcome Measures:
  • Negative reverse transcriptase (RT)-PCR detection of viral RNA in nasopharyngeal and tracheal aspirate (intubated) or oropharyngeal (non-intubated) samples at Day 5 among patients who require ICU admission due to respiratory distress. [ Time Frame: Day 5 on study ]

Secondary Outcome Measures:
  • Ventilator days up to 60 d (main clinical endpoint), [ Time Frame: 60 days ]

Enrollment: 59
Study Start Date: November 2009
Study Completion Date: May 2011
Primary Completion Date: May 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Standard Oseltamivir dose 75 mg bid
Standard dosing
Drug: Oseltamivir
standard (75 mg bid) or high-dose (225 mg bid) oseltamivir
Other Name: Tamiflu
Experimental: High Dose Oseltamivir arm 225mg bid
High dose arm of the study
Drug: Oseltamivir
standard (75 mg bid) or high-dose (225 mg bid) oseltamivir
Other Name: Tamiflu

  Show Detailed Description


Ages Eligible for Study:   12 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Patients age 12 and older and 45 kg or more
  2. Suspected or confirmed influenza (Appendix A)
  3. Requirement for ICU admission due to respiratory distress or critical illness defined as one of:

    1. Inspired oxygen need of >50% for at least 4 hours (For FiO2 for non-intubated patients see Appendix B)
    2. mechanical ventilation
    3. Patient is receiving inotrope or vasopressor
  4. Negative b-HCG test or negative bedside urine test pending a confirmatory b-HCG test for pregnancy in women of childbearing age (12-60 years of age) will allow study entry

Exclusion Criteria:

  1. Inability to obtain consent
  2. Patients receiving more than two doses of 150 mg or higher oseltamivir in 36 hours before study entry
  3. Patients having received more than 3 doses of 75 mg oseltamivir immediately in 36 hours before study entry
  4. Age less than 12 years, or age <16 and weight less than 45 kg
  5. Unlikely to absorb enteral study drug (e.g. patients with partial or complete mechanical bowel obstruction, intestinal ischemia, infarction, and short bowel syndrome)
  6. Known allergy or hypersensitivity to oseltamivir
  7. Pregnancy or breast feeding
  8. Previous enrollment in current study
  9. Concurrent involvement in an RCT examining an antiviral agent including other neuraminidase inhibitors, interferon-a and/or ribavirin
  10. Chronic renal failure requiring chronic hemodialysis
  11. Severe chronic liver disease (Child-Pugh Score 11-15)
  12. Anticipated death within 24 hours as judged by attending physician or local PI
  13. Patient carrying "do not intubate" order (a "no CPR" or "no defibrillate" or "no chest compressions" order alone is allowed)
  Contacts and Locations
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Please refer to this study by its identifier: NCT01010087

Canada, Manitoba
Winnipeg Regional Health Authority; Health Sciences Centre
Winnipeg, Manitoba, Canada, R3E 0Z3
Sponsors and Collaborators
University of Manitoba
Hoffmann-La Roche
Principal Investigator: Anand Kumar, MD University of Manitoba
  More Information

Responsible Party: Anand Kumar MD, Winnipeg Regional Health Authority; Health Sciences Centre Identifier: NCT01010087     History of Changes
Other Study ID Numbers: 133312
Study First Received: November 5, 2009
Last Updated: June 9, 2011

Keywords provided by University of Manitoba:
patients admitted to ICU

Additional relevant MeSH terms:
Influenza, Human
Orthomyxoviridae Infections
RNA Virus Infections
Virus Diseases
Respiratory Tract Infections
Respiratory Tract Diseases
Antiviral Agents
Anti-Infective Agents
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on September 19, 2017