Evidence map›Paper›PMID 26824950›Full record

ArticleAntimicrobial agents and chemotherapy2016

In Vitro Antiviral Activity and Resistance Profile Characterization of the Hepatitis C Virus NS5A Inhibitor Ledipasvir.

Guofeng Cheng, Yang Tian, Brian Doehle, Betty Peng, Amoreena Corsa, Yu-Jen Lee, Ruoyu Gong, Mei Yu, Bin Han, Simin Xu and 7 more

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
8.9field-weighted citation impact, top 2% 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

29 citing papers in PubMed, 69 citations in OpenAlex.

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  7. Breakthroughs in hepatitis C research: from discovery to cure.Nature reviews. Gastroenterology & hepatology · 2022
    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

17 authors at 1 institution in 1 country.

Guofeng ChengGilead Sciences, Foster City, California, USA guofeng.cheng@gilead.com.
Yang TianGilead Sciences, Foster City, California, USA.
Brian DoehleGilead Sciences, Foster City, California, USA.
Betty PengGilead Sciences, Foster City, California, USA.
Amoreena CorsaGilead Sciences, Foster City, California, USA.
Yu-Jen LeeGilead Sciences, Foster City, California, USA.
Ruoyu GongGilead Sciences, Foster City, California, USA.
Mei YuGilead Sciences, Foster City, California, USA.
Bin HanGilead Sciences, Foster City, California, USA.
Simin XuGilead Sciences, Foster City, California, USA.
Hadas Dvory-SobolGilead Sciences, Foster City, California, USA.
Michel PerronGilead Sciences, Foster City, California, USA.
Yili XuGilead Sciences, Foster City, California, USA.
Hongmei MoGilead Sciences, Foster City, California, USA.
Nikos PagratisGilead Sciences, Foster City, California, USA.
John O LinkGilead Sciences, Foster City, California, USA.
William DelaneyGilead Sciences, Foster City, California, USA.
Gilead Sciences (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ledipasvir (LDV; GS-5885), a component of Harvoni (a fixed-dose combination of LDV with sofosbuvir [SOF]), is approved to treat chronic hepatitis C virus (HCV) infection. Here, we report key preclinical antiviral properties of LDV, including in vitro potency, in vitro resistance profile, and activity in combination with other anti-HCV agents. LDV has picomolar antiviral activity against genotype 1a and genotype 1b replicons with 50% effective concentration (EC50) values of 0.031 nM and 0.004 nM, respectively. LDV is also active against HCV genotypes 4a, 4d, 5a, and 6a with EC50 values of 0.11 to 1.1 nM. LDV has relatively less in vitro antiviral activity against genotypes 2a, 2b, 3a, and 6e, with EC50 values of 16 to 530 nM. In vitro resistance selection with LDV identified the single Y93H and Q30E resistance-associated variants (RAVs) in the NS5A gene; these RAVs were also observed in patients after a 3-day monotherapy treatment. In vitro antiviral combination studies indicate that LDV has additive to moderately synergistic antiviral activity when combined with other classes of HCV direct-acting antiviral (DAA) agents, including NS3/4A protease inhibitors and the nucleotide NS5B polymerase inhibitor SOF. Furthermore, LDV is active against known NS3 protease and NS5B polymerase inhibitor RAVs with EC50 values equivalent to those for the wild type.

Indexed as

Antiviral AgentsBenzimidazolesCarrier ProteinsCell Line, TumorDEAD-box RNA HelicasesDrug CombinationsDrug Resistance, ViralDrug SynergismFluorenesGenotypeHeLa CellsHepacivirusHepatitis C, ChronicHumansIntracellular Signaling Peptides and ProteinsMicrobial Sensitivity TestsAntiviral AgentsBenzimidazolesCarrier ProteinsDEAD-box RNA HelicasesDrug CombinationsFluorenesIntracellular Signaling Peptides and ProteinsledipasvirNS3 protein, hepatitis C virusNS4A cofactor peptide, Hepatitis C virusNS-5 protein, hepatitis C virusNucleoside-TriphosphataseRNA-Dependent RNA PolymeraseSerine EndopeptidasesSofosbuvirViral Nonstructural ProteinsViral Proteases

Identifiers

PMID26824950
PMCPMC4775926
OpenAlexW2277765825

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.