OECD Guidelines for Testing of Chemicals

OECD Guidelines for Testing of Chemicals
Author: Organisation for Economic Co-operation and Development
Publisher: Organisation for Economic Co-operation and Development ; [Montréal : Renouf]
Total Pages:
Release: 1981
Genre: Chemical industry
ISBN: 9789264122215

OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 408: Repeated Dose 90-Day Oral Toxicity Study in Rodents

OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 408: Repeated Dose 90-Day Oral Toxicity Study in Rodents
Author: OECD
Publisher: OECD Publishing
Total Pages: 16
Release: 2018-06-27
Genre:
ISBN: 9264070702

This method provides information on health hazard likely to arise from exposure to test substance via oral administration. The determination of sub-chronic oral toxicity using repeated doses may be carried out after initial information on toxicity has been obtained from acute or repeated dose ...

OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 470: Mammalian Erythrocyte Pig-a Gene Mutation Assay

OECD Guidelines for the Testing of Chemicals, Section 4 Test No. 470: Mammalian Erythrocyte Pig-a Gene Mutation Assay
Author: OECD
Publisher: OECD Publishing
Total Pages: 37
Release: 2022-06-30
Genre:
ISBN: 9264366067

This Test Guideline describes an in vivo erythrocyte Pig-a gene mutation assay (hereafter called the Pig-a assay) which uses an endogenous mammalian gene, the phosphatidylinositol glycan class A gene (Pig-a), as a reporter of somatic-cell gene mutation. In vivo gene mutation tests, such as the Pig-a assay, are especially relevant for assessing mutagenicity because physiological factors, such as absorption of the test chemical from the site of exposure, distribution of the test chemical throughout the test system via systemic circulation, and in vivo metabolism and DNA repair processes, all contribute to the mutagenic responses.

Mutagenic Impurities

Mutagenic Impurities
Author: Andrew Teasdale
Publisher: John Wiley & Sons
Total Pages: 548
Release: 2022-02-15
Genre: Medical
ISBN: 1119551218

Learn to implement effective control measures for mutagenic impurities in pharmaceutical development In Mutagenic Impurities: Strategies for Identification and Control, distinguished chemist Andrew Teasdale delivers a thorough examination of mutagenic impurities and their impact on the pharmaceutical industry. The book incorporates the adoption of the ICH M7 guideline and focuses on mutagenic impurities from both a toxicological and analytical perspective. The editor has created a primary reference for any professional or student studying or working with mutagenic impurities and offers readers a definitive narrative of applicable guidelines and practical, tested solutions. It demonstrates the development of effective control measures, including chapters on the purge tool for risk assessment. The book incorporates a discussion of N-Nitrosamines which was arguably the largest mutagenic impurity issue ever faced by the pharmaceutical industry, resulting in the recall of Zantac and similar drugs resulting from N-Nitrosamine contamination. Readers will also benefit from the inclusion of: A thorough introduction to the development of regulatory guidelines for mutagenic and genotoxic impurities, including a historical perspective on the development of the EMEA guidelines and the ICH M7 guideline An exploration of in silico assessment of mutagenicity, including use of structure activity relationship evaluation as a tool in the evaluation of the genotoxic potential of impurities A discussion of a toxicological perspective on mutagenic impurities, including the assessment of mutagenicity and examining the mutagenic and carcinogenic potential of common synthetic reagents Perfect for chemists, analysts, and regulatory professionals, Mutagenic Impurities: Strategies for Identification and Control will also earn a place in the libraries of toxicologists and clinical safety scientists seeking a one-stop reference on the subject of mutagenic impurity identification and control.

Test No. 421: Reproduction/Developmental Toxicity Screening Test

Test No. 421: Reproduction/Developmental Toxicity Screening Test
Author: OECD
Publisher: OECD Publishing
Total Pages: 10
Release: 1995-07-27
Genre:
ISBN: 9264070966

The test substance is administered in graduated doses to several groups of males and females. Males should be dosed for a minimum of four weeks. Females should be dosed throughout the study, so approximately 54 days. This Test Guideline is designed ...

Toxicity Testing for Assessment of Environmental Agents

Toxicity Testing for Assessment of Environmental Agents
Author: National Research Council
Publisher: National Academies Press
Total Pages: 270
Release: 2006-04-07
Genre: Nature
ISBN: 0309164869

Toxicity testing in laboratory animals provides much of the information used by the Environmental Protection Agency (EPA) to assess the hazards and risks associated with exposure to environmental agents that might harm public health or the environment. The data are used to establish maximum acceptable concentrations of environmental agents in drinking water, set permissible limits of exposure of workers, define labeling requirements, establish tolerances for pesticides residues on food, and set other kinds of limits on the basis of risk assessment. Because the number of regulations that require toxicity testing is growing, EPA called for a comprehensive review of established and emerging toxicity-testing methods and strategies. This interim report reviews current toxicity-testing methods and strategies and near-term improvements in toxicity-testing approaches proposed by EPA and others. It identifies several recurring themes and questions in the various reports reviewed. The final report will present a long-range vision and strategic plan to advance the practices of toxicity testing and human health assessment of environmental contaminants.