GSK is conducting a global retrospective chart review of patients treated with zanamivir as part of the Compassionate Use Program (CUP), in an effort to collect as much information as possible on the use of this investigational drug. The retrospective chart review is intended to gain a better understanding of the safety profile of investigational zanamivir and of clinical outcomes in the large number of patients treated outside of a clinical trial setting.
This is an observational, retrospective, multi-centre, cohort data collection study. The CUP retrospective review study has been designed to collect safety and clinical outcome data from pediatric and pregnant patients (collectively referred to as the "Tier 1" cohort) treated globally within the CUP during the 2009/2010 pandemic (from May 2009) through 31 January 2011. The study will also attempt to collect data from other adult patients (referred to as the "Tier 2" cohort) who were treated at sites identified as having Tier 1 patients. The treating physician at each site will receive a letter from the GSK medical director inviting him/her to participate in the retrospective chart review study. Physicians (or their delegates) who agree to participate will receive study-related documentation \[including the protocol and case report form (CRF)\] to orient the site to the study details and CRF. For the purposes of this study, the term "site" generally refers to a hospital where in-patient treatment was provided. The retrospective chart review will be monitored via remote visits by telephone. The interviewer will be a Kendle associate assigned to the study who will not have direct access to the patient's source documents or medical records during conduct of the study. The physician/delegate will review the patient's chart and record data on a paper CRF. The CRF will be in the English language. Site personnel will mail completed CRFs to Kendle. Kendle will review the CRF for data quality, and conduct a remote monitoring visit via telephone to address any data queries, if required. No visits to participating sites are planned.
Study Type
OBSERVATIONAL
Enrollment
113
retrospective chart review
Mortality
Number of patients who died
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks
Other anti-influenza therapies
Number of patients who received other anti-influenza therapies
Time frame: for duration of influenza-related hospitalization, an expected average of 5 weeks
Chest X-ray abnormalities
Number of patients with abnormal findings
Time frame: within 1-2 days of hospital admission or symptom onset
Resistance to zanamivir
Number of patients with documentation of resistance
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks
Other infections
Number of patients with diagnosis of other infections
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks
Complications of influenza
Number of patients with complications of influenza
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks
Ventilation/Oxygenation
Number of patients requiring ventilation support or supplemental oxygen
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks
Concomitant Medications
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Number of patients receiving antibiotic/, antifungal/, orticosteroids, or inotropic medications
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks
Treatment emergent events
Number of patients experiencing a treatment emergent event
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks
Hemodialysis/Renal Replacement Therapy
Number of patients receiving hemodialysis or renal replacement therapy
Time frame: for duration of influenza-related hospitalization, an expected average duration of 5 weeks