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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Genetic toxicity: in vitro

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Administrative data

Endpoint:
in vitro cytogenicity / chromosome aberration study in mammalian cells
Remarks:
Type of genotoxicity: chromosome aberration
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
A reliable secondary source, summarising Candesartan properties, was used. However the primary sources were not revisited in order to verify their contents; for this reason reliability score 2 was used; it covers the most updated literature on the substance.

Data source

Reference
Reference Type:
publication
Title:
No information
Bibliographic source:
Thomson/Micromedex. Drug Information for the Health Care Professional. Volume 1, Greenwood Village, CO. 2007., p. 691

Materials and methods

GLP compliance:
not specified
Type of assay:
in vitro mammalian chromosome aberration test

Test material

Constituent 1
Chemical structure
Reference substance name:
2-ethoxy-1-{[2'-(1H-1,2,3,4-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl]methyl}-1H-1,3-benzodiazole-7-carboxylic acid
EC Number:
604-138-8
Cas Number:
139481-59-7
Molecular formula:
C24H20N6O3
IUPAC Name:
2-ethoxy-1-{[2'-(1H-1,2,3,4-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl]methyl}-1H-1,3-benzodiazole-7-carboxylic acid
Constituent 2
Reference substance name:
O-deethyl metabolite of Candesartan
IUPAC Name:
O-deethyl metabolite of Candesartan
Test material form:
not specified
Details on test material:
no data

Method

Target gene:
chinese hamster lung
Species / strain
Species / strain / cell type:
Chinese hamster lung fibroblasts (V79)
Additional strain / cell type characteristics:
not specified
Metabolic activation:
not specified
Test concentrations with justification for top dose:
no data
Vehicle / solvent:
no data
Details on test system and experimental conditions:
no data
Evaluation criteria:
no data
Statistics:
no data

Results and discussion

Test results
Species / strain:
Chinese hamster lung fibroblasts (V79)
Metabolic activation:
not specified
Genotoxicity:
positive
Cytotoxicity / choice of top concentrations:
not specified
Vehicle controls validity:
not specified
Untreated negative controls validity:
not specified
Positive controls validity:
not specified
Remarks on result:
other: other: no data
Remarks:
Migrated from field 'Test system'.

Any other information on results incl. tables

Candesartan and its O-deethyl metabolite tested positive for genotoxicity in the in vitro chinese hamster lung (CHL) chromosomal aberration assay

Applicant's summary and conclusion

Conclusions:
Interpretation of results:
positive

Candesartan and its O-deethyl metabolite tested positive for genotoxicity in the in vitro chinese hamster lung (CHL) chromosomal aberration assay