Evidence map›Paper›PMID 21371508›Full record

ArticleAntiviral research2011

Evaluation of Lassa antiviral compound ST-193 in a guinea pig model.

Kathleen A Cashman, Mark A Smith, Nancy A Twenhafel, Ryan A Larson, Kevin F Jones, Robert D Allen, Dongcheng Dai, Jarasvech Chinsangaram, Tove' C Bolken, Dennis E Hruby and 3 more

Abstract read
In one paragraph

Article in Antiviral research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

62 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Entry inhibitors as arenavirus antivirals.Frontiers in microbiology · 2024
    Review
  16. Article
  17. Review
  18. Article
  19. Lassa Virus Countermeasures.Current topics in microbiology and immunology · 2023
    Article
  20. Article

2 more citing papers are in PubMed but not listed here.

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

13 authors.

Kathleen A CashmanVirology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, USA.
Mark A Smith
Nancy A Twenhafel
Ryan A Larson
Kevin F Jones
Robert D Allen
Dongcheng Dai
Jarasvech Chinsangaram
Tove' C Bolken
Dennis E Hruby
Sean M Amberg
Lisa E Hensley
Mary C Guttieri

Funding

Antiviral Drugs for Lassa Fever VirusR44AI056525 · NIAID · SIGA TECHNOLOGIES, INC. · PI AMBERG, SEAN M · 2004 to 2008
$11.3M
NIAID NIH HHS R44 AI056525
6 · The paper itself

Abstract

Lassa virus (LASV), a member of the Arenaviridae family, causes a viral hemorrhagic fever endemic to West Africa, where as many as 300,000 infections occur per year. Presently, there are no FDA-approved LASV-specific vaccines or antiviral agents, although the antiviral drug ribavirin has shown some efficacy. A recently identified small-molecule inhibitor of arenavirus entry, ST-193, exhibits submicromolar antiviral activity in vitro. To determine the antiviral utility of ST-193 in vivo, we tested the efficacy of this compound in the LASV guinea pig model. Four groups of strain 13 guinea pigs were administered 25 or 80 mg/kg ST-193, 25 mg/kg of ribavirin, or the vehicle by the intraperitoneal (i.p.) route before infection with a lethal dose of LASV, strain Josiah, and continuing once daily for 14 days. Control animals exhibited severe disease, becoming moribund between days 10 and 15 postinfection. ST-193-treated animals exhibited fewer signs of disease and enhanced survival when compared to the ribavirin or vehicle groups. Body temperatures in all groups were elevated by day 9, but returned to normal by day 19 postinfection in the majority of ST-193-treated animals. ST-193 treatment mediated a 2-3-log reduction in viremia relative to vehicle-treated controls. The overall survival rate for the ST-193-treated guinea pigs was 62.5% (10/16) compared with 0% in the ribavirin (0/8) and vehicle (0/7) groups. These data suggest that ST-193 may serve as an improved candidate for the treatment of Lassa fever.

Indexed as

AnimalsAntiviral AgentsBody TemperatureDisease Models, AnimalFemaleGuinea PigsInjections, IntraperitonealLassa FeverSurvival AnalysisViremiaAntiviral Agents

Identifiers

PMID21371508
PMCPMC3319460

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.