Evidence map›Paper›PMID 22212579›Full record

ReviewLiver international : official journal of the International Association for the Study of the Liver2012

The role of ribavirin in direct acting antiviral drug regimens for chronic hepatitis C.

Virginia Clark, David R Nelson

Open access · bronzeAbstract readReview
In one paragraph

Review in Liver international : official journal of the International Association for the Study of the Liver, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Direct-acting antivirals for chronic hepatitis C.The Cochrane database of systematic reviews · 2017
    Pooled it
  2. Direct-acting antivirals for chronic hepatitis C.The Cochrane database of systematic reviews · 2017
    Pooled it
  3. [Diagnostic value of novel hepatic fibrosis markers in assessing cirrhosis in patients with chronic hepatitis C].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2023
    Article
  4. Article
  5. Association between hepatitis C antiviral treatment and diabetes mellitus: A case series.Journal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada · 2020
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
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

2 authors at 1 institution in 1 country.

Virginia ClarkUniversity of Florida, College of Medicine, Gainesville, FL 32610, USA.
David R Nelson
Florida College · US

Funding

UF CLINICAL AND TRANSLATIONAL SCIENCE AWARDUL1RR029890 · NCRR · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2009 to 2011
$14.4M
UF Clinical and Translational Science AwardKL2RR029888 · NCRR · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2009 to 2011
$1.8M
Mechanisms of Innate and Adaptive Immunity In HCVR01AI061158 · NIAID · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2005 to 2009
$1.5M
A Multidisciplinary and Translational Approach to Hepatobiliary MalignancyK24CA139570 · NCI · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2010 to 2014
$887k
NCI NIH HHS K24 CA139570NCRR NIH HHS KL2 RR029888NCRR NIH HHS UL1 RR029890NIAID NIH HHS R01 AI061158
6 · The paper itself

Abstract

Despite years of clinical use and extensive research efforts, the mechanism of action of ribavirin (RBV) is not well understood. Although it has only a mild, transient antiviral effect on HCV replication when administered as monotherapy, when combined with interferon, RBV improves sustained virological response (SVR) rates by approximately 25-30%. Proposed mechanisms of action for RBV against HCV include (1) a direct effect against the HCV RNA dependent RNA polymerase; (2) induction of misincorporation of nucleotides leading to lethal mutagenesis; (3) depletion of intracellular pools via inhibition of inosine monophosphate dehydrogenase; (4) alteration in the cytokine balance between a Th2 profile (anti-inflammatory) to a Th1 profile (pro-inflammatory); and (5) potentiating the effect of interferon via up-regulation of genes involved in interferon signalling. Given the lack of a clear understanding of RBV mechanism of action, it has been challenging to confidently position this drug with new direct antiviral agents (DAA). However, early clinical studies provide strong evidence for a benefit of RBV in combination with DAAs for both IFN containing and sparing regimens. The addition of RBV reduces viral breakthroughs and/or relapses, at least when drugs with low to moderate genetic barriers to resistance are paired together. This is particularly true in patients harbouring HCV subtype 1a. Ongoing studies are now addressing the utility of RBV in nucleoside containing DAA regimens, which offer both potent antiviral activity as well as a high genetic barrier to resistance. It is remarkable that the age-old question of the role of RBV in the future of HCV therapy remains as real today as it was two decades ago.

Indexed as

Antiviral AgentsDrug Therapy, CombinationHepatitis C, ChronicHumansRecurrenceRibavirinSerine Proteinase InhibitorsViral LoadAntiviral AgentsRibavirinSerine Proteinase Inhibitors

Identifiers

PMID22212579
PMCPMC3682505
OpenAlexW2045597627

What OpenQuestion holds

Textmetadata
LicenceTDM
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.