Towards grouping concepts based on new approach methodologies in chemical hazard assessment : the read-across approach of the EU-ToxRisk project

Thumbnail Image
Date
2019
Authors
Escher, Sylvia E.
Kamp, Hennicke
Bennekou, Susanne H.
Bitsch, Annette
Fisher, CiarĂ¡n
Graepel, Rabea
Hengstler, Jan G.
Herzler, Matthias
van de Water, Bob
Editors
Contact
Journal ISSN
Electronic ISSN
ISBN
Bibliographical data
Publisher
Series
DOI (citable link)
ArXiv-ID
International patent number
Link to the license
EU project number
681002
Project
EUToxRisk21
Open Access publication
Collections
Restricted until
Title in another language
Research Projects
Organizational Units
Journal Issue
Publication type
Journal article
Publication status
Published
Published in
Archives of Toxicology ; 93 (2019), 12. - pp. 3643-3667. - ISSN 0340-5761. - eISSN 1432-0738
Abstract
Read-across is one of the most frequently used alternative tools for hazard assessment, in particular for complex endpoints such as repeated dose or developmental and reproductive toxicity. Read-across extrapolates the outcome of a specific toxicological in vivo endpoint from tested (source) compounds to "similar" (target) compound(s). If appropriately applied, a read-across approach can be used instead of de novo animal testing. The read-across approach starts with structural/physicochemical similarity between target and source compounds, assuming that similar structural characteristics lead to similar human hazards. In addition, similarity also has to be shown for the toxicokinetic and toxicodynamic properties of the grouped compounds. To date, many read-across cases fail to demonstrate toxicokinetic and toxicodynamic similarities. New concepts, in vitro and in silico tools are needed to better characterise these properties, collectively called new approach methodologies (NAMs). This white paper outlines a general read-across assessment concept using NAMs to support hazard characterization of the grouped compounds by generating data on their dynamic and kinetic properties. Based on the overarching read-across hypothesis, the read-across workflow suggests targeted or untargeted NAM testing also outlining how mechanistic knowledge such as adverse outcome pathways (AOPs) can be utilized. Toxicokinetic models (biokinetic and PBPK), enriched by in vitro parameters such as plasma protein binding and hepatocellular clearance, are proposed to show (dis)similarity of target and source compound toxicokinetics. Furthermore, in vitro to in vivo extrapolation is proposed to predict a human equivalent dose, as potential point of departure for risk assessment. Finally, the generated NAM data are anchored to the existing in vivo data of source compounds to predict the hazard of the target compound in a qualitative and/or quantitative manner. To build this EU-ToxRisk read-across concept, case studies have been conducted and discussed with the regulatory community. These case studies are briefly outlined.
Summary in another language
Subject (DDC)
570 Biosciences, Biology
Keywords
Conference
Review
undefined / . - undefined, undefined. - (undefined; undefined)
Cite This
ISO 690ESCHER, Sylvia E., Hennicke KAMP, Susanne H. BENNEKOU, Annette BITSCH, CiarĂ¡n FISHER, Rabea GRAEPEL, Jan G. HENGSTLER, Matthias HERZLER, Marcel LEIST, Bob VAN DE WATER, 2019. Towards grouping concepts based on new approach methodologies in chemical hazard assessment : the read-across approach of the EU-ToxRisk project. In: Archives of Toxicology. 93(12), pp. 3643-3667. ISSN 0340-5761. eISSN 1432-0738. Available under: doi: 10.1007/s00204-019-02591-7
BibTex
@article{Escher2019-12Towar-47978,
  year={2019},
  doi={10.1007/s00204-019-02591-7},
  title={Towards grouping concepts based on new approach methodologies in chemical hazard assessment : the read-across approach of the EU-ToxRisk project},
  number={12},
  volume={93},
  issn={0340-5761},
  journal={Archives of Toxicology},
  pages={3643--3667},
  author={Escher, Sylvia E. and Kamp, Hennicke and Bennekou, Susanne H. and Bitsch, Annette and Fisher, CiarĂ¡n and Graepel, Rabea and Hengstler, Jan G. and Herzler, Matthias and Leist, Marcel and van de Water, Bob}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/47978">
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-12-10T15:29:08Z</dc:date>
    <dc:contributor>Hengstler, Jan G.</dc:contributor>
    <dc:contributor>Herzler, Matthias</dc:contributor>
    <dc:creator>Bitsch, Annette</dc:creator>
    <dc:contributor>Graepel, Rabea</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-12-10T15:29:08Z</dcterms:available>
    <dc:creator>Kamp, Hennicke</dc:creator>
    <dcterms:issued>2019-12</dcterms:issued>
    <dc:creator>Fisher, CiarĂ¡n</dc:creator>
    <dc:contributor>Fisher, CiarĂ¡n</dc:contributor>
    <dcterms:title>Towards grouping concepts based on new approach methodologies in chemical hazard assessment : the read-across approach of the EU-ToxRisk project</dcterms:title>
    <dc:contributor>Bennekou, Susanne H.</dc:contributor>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/47978/1/Escher_2-10roi4ti2roh98.pdf"/>
    <dc:creator>van de Water, Bob</dc:creator>
    <dc:contributor>van de Water, Bob</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/47978/1/Escher_2-10roi4ti2roh98.pdf"/>
    <dc:rights>terms-of-use</dc:rights>
    <dc:language>eng</dc:language>
    <dc:contributor>Escher, Sylvia E.</dc:contributor>
    <dcterms:abstract xml:lang="eng">Read-across is one of the most frequently used alternative tools for hazard assessment, in particular for complex endpoints such as repeated dose or developmental and reproductive toxicity. Read-across extrapolates the outcome of a specific toxicological in vivo endpoint from tested (source) compounds to "similar" (target) compound(s). If appropriately applied, a read-across approach can be used instead of de novo animal testing. The read-across approach starts with structural/physicochemical similarity between target and source compounds, assuming that similar structural characteristics lead to similar human hazards. In addition, similarity also has to be shown for the toxicokinetic and toxicodynamic properties of the grouped compounds. To date, many read-across cases fail to demonstrate toxicokinetic and toxicodynamic similarities. New concepts, in vitro and in silico tools are needed to better characterise these properties, collectively called new approach methodologies (NAMs). This white paper outlines a general read-across assessment concept using NAMs to support hazard characterization of the grouped compounds by generating data on their dynamic and kinetic properties. Based on the overarching read-across hypothesis, the read-across workflow suggests targeted or untargeted NAM testing also outlining how mechanistic knowledge such as adverse outcome pathways (AOPs) can be utilized. Toxicokinetic models (biokinetic and PBPK), enriched by in vitro parameters such as plasma protein binding and hepatocellular clearance, are proposed to show (dis)similarity of target and source compound toxicokinetics. Furthermore, in vitro to in vivo extrapolation is proposed to predict a human equivalent dose, as potential point of departure for risk assessment. Finally, the generated NAM data are anchored to the existing in vivo data of source compounds to predict the hazard of the target compound in a qualitative and/or quantitative manner. To build this EU-ToxRisk read-across concept, case studies have been conducted and discussed with the regulatory community. These case studies are briefly outlined.</dcterms:abstract>
    <dc:contributor>Leist, Marcel</dc:contributor>
    <dc:creator>Leist, Marcel</dc:creator>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:contributor>Kamp, Hennicke</dc:contributor>
    <dc:creator>Graepel, Rabea</dc:creator>
    <dc:creator>Hengstler, Jan G.</dc:creator>
    <dc:creator>Herzler, Matthias</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:creator>Escher, Sylvia E.</dc:creator>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/47978"/>
    <dc:contributor>Bitsch, Annette</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Bennekou, Susanne H.</dc:creator>
  </rdf:Description>
</rdf:RDF>
Internal note
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Contact
URL of original publication
Test date of URL
Examination date of dissertation
Method of financing
Comment on publication
Alliance license
Corresponding Authors der Uni Konstanz vorhanden
International Co-Authors
Bibliography of Konstanz
Yes
Refereed
Yes