Transcription of DECISION TREE #1: ESTABLISHING ACCEPTANCE CRITERION …
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DECISION TREE #1: ESTABLISHING ACCEPTANCE CRITERION …
Determine impurity level in relevant batches1 Determine mean + upper confidence limit for the impurity (Let this = A) ACCEPTANCE CRITERION = A or B(as appropriate)Isimpurity alsoa degradationproduct?IsA or B greater than thequalifiedlevel? ACCEPTANCE CRITERION = qualified levelor establish new qualified level2 Estimate maximum increase in impurityat retest date using data from relevantaccelerated and long-term stability studiesDetermine maximum likely level as:A + increase in degradation product atappropriate storage conditions.(Let this = B)YESYESNONODECISION tree #1: ESTABLISHING ACCEPTANCE CRITERION FOR A SPECIFIED IMPURITY IN A NEW DRUG SUBSTANCE1 Relevant batches are those from development, pilot and scale-up to ICH Guideline on Impurities in New Drug SubstancesDefinition: upper confidence limit = three times the standard deviati
decision tree #5: establishing identity, assay and enantiomeric impurity procedures for chiral new drug substances and new drug products containing chiral drug substances
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Chiral Impurity Methods –Case Study, Chiral, Two chiral centres diastereoisomers, CHEM 6352 Organic Reactions & Synthesis, CHEM 6352 Organic Reactions & Synthesis Chiral, Column Protection Guide Version 0610, EVE Planetary Interaction Material Diagrams, Lecture 5 - Stereochemistry in Transition Metal Complexes