Zanamivir aqueous solution in severe influenza: A global Compassionate Use Program, 2009-2019.
Influenza Other Respir Viruses
; 16(3): 542-551, 2022 05.
Article
in English
| MEDLINE | ID: covidwho-1784668
ABSTRACT
BACKGROUND:
Zanamivir is a neuraminidase inhibitor effective against influenza A and B viruses. In 2009, GlaxoSmithKline (GSK) began clinical development of intravenous (IV) zanamivir and initiated a global Compassionate Use Program (CUP) in response to the evolving H1N1 global pandemic. The goal of the CUP was to provide zanamivir to critically ill patients with limited treatment options.METHODS:
Zanamivir was administered to patients with suspected or confirmed influenza infection who were not suitable for other approved antiviral treatments. Reporting of serious adverse events (SAEs) was mandatory and recorded in the GSK safety database. A master summary tracking sheet captured requests and patient characteristics. A case report form was available for detailing medical conditions, dosing, treatment duration, and clinical outcomes.RESULTS:
In total, 4,033 requests were made for zanamivir treatment of hospitalized patients from 38 countries between 2009 and 2019; ≥95% patients received zanamivir via the IV route. Europe had the highest number of requests (n = 3,051) followed by North America (n = 713). At least 20 patients were aged ≤6 months, of whom 12 were born prematurely. The GSK safety database included 466 patients with ≥1 SAE, of whom 374 (80%) had a fatal outcome. Drug-related SAEs were reported in 41 (11%) patients, including hepatic failure (n = 6 [2%]) and acute kidney injury (n = 5 [1%)].CONCLUSIONS:
The CUP facilitated global access to zanamivir prior to product approval. No new safety concerns were identified in the CUP compared with IV zanamivir clinical studies.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Influenza, Human
/
Influenza A Virus, H1N1 Subtype
Type of study:
Prognostic study
/
Randomized controlled trials
Limits:
Humans
/
Infant
Language:
English
Journal:
Influenza Other Respir Viruses
Journal subject:
Virology
Year:
2022
Document Type:
Article
Affiliation country:
Irv.12947
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