Evidence map›Paper›PMID 21628662›Full record

ArticleThe Journal of infectious diseases2011

IL28B but not ITPA polymorphism is predictive of response to pegylated interferon, ribavirin, and telaprevir triple therapy in patients with genotype 1 hepatitis C.

Kazuaki Chayama, C Nelson Hayes, Hiromi Abe, Daiki Miki, Hidenori Ochi, Yoshiyasu Karino, Joji Toyota, Yusuke Nakamura, Naoyuki Kamatani, Hitomi Sezaki and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 3 pooled it
11.7field-weighted citation impact, top 1% 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

46 citing papers in PubMed, 3 syntheses or guidelines pooled it, 116 citations in OpenAlex.

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  16. PharmGKB summary: peginterferon-α pathway.Pharmacogenetics and genomics · 2015
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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

14 authors at 5 institutions in 2 countries.

Kazuaki ChayamaLaboratory for Digestive Diseases, Center for Genomic Medicine, RIKEN, Japan. chayama@hiroshima-u.ac.jp
C Nelson Hayes
Hiromi Abe
Daiki Miki
Hidenori Ochi
Yoshiyasu Karino
Joji Toyota
Yusuke Nakamura
Naoyuki Kamatani
Hitomi Sezaki
Mariko Kobayashi
Norio Akuta
Fumitaka Suzuki
Hiromitsu Kumada
Hiroshima University · JPToranomon Hospital · JPSapporo Kosei General Hospital · JPRIKEN Center for Integrative Medical Sciences · JPTokyo Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPegylated interferon, ribavirin, and telaprevir triple therapy is a new strategy expected to eradicate the hepatitis C virus (HCV) even in patients infected with difficult-to-treat genotype 1 strains, although adverse effects, such as anemia and rash, are frequent.

methodsWe assessed efficacy and predictive factors for sustained virological response (SVR) for triple therapy in 94 Japanese patients with HCV genotype 1. We included recently identified predictive factors, such as IL28B and ITPA polymorphism, and substitutions in the HCV core and NS5A proteins.

resultsPatients treated with triple therapy achieved comparatively high SVR rates (73%), especially among treatment-naive patients (80%). Of note, however, patients who experienced relapse during prior pegylated interferon plus ribavirin combination therapy were highly likely to achieve SVR while receiving triple therapy (93%); conversely, prior nonresponders were much less likely to respond to triple therapy (32%). In addition to prior treatment response, IL28B SNP genotype and rapid viral response were significant independent predictors for SVR. Patients with the anemia-susceptible ITPA SNP rs1127354 genotype typically required ribavirin dose reduction earlier than did patients with other genotypes.

conclusionsAnalysis of predictive factors identified IL28B SNP, rapid viral response, and transient response to previous therapy as significant independent predictors of SVR after triple therapy.

Indexed as

Polymorphism, GeneticAdultAgedAntiviral AgentsFemaleGenotypeHepatitis CHumansInosine TriphosphataseInterferon LambdaInterferonsInterleukinsMaleMiddle AgedOligopeptidesPredictive Value of TestsAntiviral AgentsInosine TriphosphataseInterferon Lambdainterferon-lambda, humanInterferonsInterleukinsITPA protein, humanNS-5 protein, hepatitis C virusnucleocapsid protein, Hepatitis C virusOligopeptidesPyrophosphatasesRibavirinRNA-Dependent RNA PolymerasetelaprevirViral Core ProteinsViral Nonstructural Proteins

Identifiers

PMID21628662
PMCPMC3307155
OpenAlexW2116848809

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.