Klimisch Score
The Klimisch score system tries to rank the reliability of toxicity studies for use by risk assessors (regulatory agencies). It was published in 1997, by BASF (a chemical company) authors. Studies performed according to GLP are assigned the top rank of 1 (reliable without restriction) and are preferred by agencies. When no GLP study is available for a particular endpoint, a study with a rank of 2 is usually accepted by an agency. Lower ranks typically require a new study to be performed. Klimisch scoring is very widely used in chemical risk assessments. Critics say it is a self-interested bias on objectivity, that a quality system from the regulated party gives their own GLP-complying studies the top rank.
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