Evidence map›Paper›PMID 21263046›Full record

ArticleAntimicrobial agents and chemotherapy2011

Zanamivir, at 600 milligrams twice daily, inhibits oseltamivir-resistant 2009 pandemic H1N1 influenza virus in an in vitro hollow-fiber infection model system.

Ashley N Brown, James J McSharry, Qingmei Weng, Jonathan R Adams, Robert Kulawy, George L Drusano

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 23 citations in OpenAlex.

  1. Trial
  2. DynamicAntibiotics (Basel, Switzerland) · 2024
    Review
  3. Review
  4. Review
  5. Article
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  8. Oseltamivir-zanamivir combination therapy suppresses drug-resistant H1N1 influenza A viruses in the hollow fiber infection model (HFIM) system.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2018
    Article
  9. Article
  10. Article
  11. Review
  12. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Ashley N BrownVirology Therapeutics and Pharmacodynamics Laboratory, Center for Biodefense and Emerging Infections, Ordway Research Institute, Center for Medical Sciences, 150 New Scotland Avenue, Albany, New York 12208, USA.
James J McSharry
Qingmei Weng
Jonathan R Adams
Robert Kulawy
George L Drusano
Institute for Clinical Pharmacodynamics (United States) · US

Funding

Resistance Suppression for Influenza Virus With Combination ChemotherapyR01AI079729 · NIAID · UNIVERSITY OF FLORIDA · PI DRUSANO, GEORGE LOUIS · 2008 to 2011
$2.3M
NIAID NIH HHS R01 AI079729NIAID NIH HHS R01-AI079729-02
6 · The paper itself

Abstract

In 2009, a novel H1N1 influenza A virus emerged and spread worldwide, initiating a pandemic. Various isolates obtained from disparate parts of the world were shown to be uniformly resistant to the adamantanes but sensitive to the neuraminidase inhibitors oseltamivir and zanamivir. Over time, resistance to oseltamivir became more prevalent among pandemic H1N1 virus isolates, while most remained susceptible to zanamivir. The government has proposed the use of intravenous (i.v.) zanamivir to treat serious influenza virus infections among hospitalized patients. To use zanamivir effectively for patients with severe influenza, it is necessary to know the optimal dose and schedule of administration of zanamivir that will inhibit the replication of oseltamivir-sensitive and -resistant influenza viruses. Therefore, we performed studies using the in vitro hollow-fiber infection model system to predict optimal dosing regimens for zanamivir against an oseltamivir-sensitive and an oseltamivir-resistant virus. Our results demonstrated that zanamivir, at a dose of 600 mg given twice a day (Q12h), inhibited the replication of oseltamivir-sensitive and oseltamivir-resistant influenza viruses throughout the course of the experiment. Thus, our findings suggest that intravenous zanamivir, at a dose of 600 mg Q12h, could be used to treat hospitalized patients suffering from serious infections with oseltamivir-sensitive or -resistant influenza viruses.

Indexed as

Acids, CarbocyclicAnimalsAntiviral AgentsCell LineCyclopentanesDogsDrug Resistance, ViralGuanidinesInfluenza A Virus, H1N1 SubtypeOseltamivirZanamivirAcids, CarbocyclicAntiviral AgentsCyclopentanesGuanidinesOseltamivirperamivirZanamivir

Identifiers

PMID21263046
PMCPMC3067184
OpenAlexW2161015308

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.