1. S9 nonclinical evaluation for anticancer pharmaceuticals: questions and answers Publication: Silver Spring, MD : Center for Drug Evaluation and Research, June 2018 Subject(s): Antineoplastic Agents -- therapeutic useClinical Trials as TopicDrug Evaluation, PreclinicalAntineoplastic Agents -- toxicityDrug ApprovalDrug ContaminationResearch DesignToxicity TestsHumansUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.