PMID- 19422098 OWN - NLM STAT- MEDLINE DCOM- 20090724 LR - 20191111 IS - 1096-0295 (Electronic) IS - 0273-2300 (Linking) VI - 54 IP - 1 DP - 2009 Jun TI - Identification of structure-activity relationships for adverse effects of pharmaceuticals in humans: Part B. Use of (Q)SAR systems for early detection of drug-induced hepatobiliary and urinary tract toxicities. PG - 23-42 AB - This report describes the development of quantitative structure-activity relationship (QSAR) models for predicting rare drug-induced liver and urinary tract injury in humans based upon a database of post-marketing adverse effects (AEs) linked to approximately 1600 chemical structures. The models are based upon estimated population exposure using AE proportional reporting ratios. Models were constructed for 5 types of liver injury (liver enzyme disorders, cytotoxic injury, cholestasis and jaundice, bile duct disorders, gall bladder disorders) and 6 types of urinary tract injury (acute renal disorders, nephropathies, bladder disorders, kidney function tests, blood in urine, urolithiases). Identical training data sets were configured for 4 QSAR programs (MC4PC, MDL-QSAR, BioEpisteme, and Predictive Data Miner). Model performance was optimized and was shown to be affected by the AE scoring method and the ratio of the number of active to inactive drugs. The best QSAR models exhibited an overall average 92.4% coverage, 86.5% specificity and 39.3% sensitivity. The 4 QSAR programs were demonstrated to be complementary and enhanced performance was obtained by combining predictions from 2 programs (average 78.4% specificity, 56.2% sensitivity). Consensus predictions resulted in better performance as judged by both internal and external validation experiments. FAU - Matthews, Edwin J AU - Matthews EJ AD - US Food and Drug Administration, Center for Drug Evaluation and Research, Office of Pharmaceutical Science, Informatics and Computational Safety Analysis Staff (ICSAS), Silver Spring, MD 20993, USA. edwin.matthews@fda.hhs.gov FAU - Ursem, Carling J AU - Ursem CJ FAU - Kruhlak, Naomi L AU - Kruhlak NL FAU - Benz, R Daniel AU - Benz RD FAU - Sabate, David Aragones AU - Sabate DA FAU - Yang, Chihae AU - Yang C FAU - Klopman, Gilles AU - Klopman G FAU - Contrera, Joseph F AU - Contrera JF LA - eng PT - Journal Article PL - Netherlands TA - Regul Toxicol Pharmacol JT - Regulatory toxicology and pharmacology : RTP JID - 8214983 RN - 0 (Pharmaceutical Preparations) SB - IM MH - *Adverse Drug Reaction Reporting Systems MH - Biliary Tract Diseases/chemically induced/*diagnosis MH - Chemical and Drug Induced Liver Injury/*diagnosis/etiology MH - Cluster Analysis MH - Databases, Factual MH - *Drug-Related Side Effects and Adverse Reactions MH - Early Diagnosis MH - Endpoint Determination MH - Humans MH - Models, Biological MH - Pharmaceutical Preparations/administration & dosage/*chemistry MH - Product Surveillance, Postmarketing MH - Quantitative Structure-Activity Relationship MH - Software MH - United States MH - United States Food and Drug Administration MH - Urologic Diseases/chemically induced/*diagnosis EDAT- 2009/05/08 09:00 MHDA- 2009/07/25 09:00 CRDT- 2009/05/08 09:00 PHST- 2009/05/08 09:00 [entrez] PHST- 2009/05/08 09:00 [pubmed] PHST- 2009/07/25 09:00 [medline] AID - S0273-2300(09)00013-0 [pii] AID - 10.1016/j.yrtph.2009.01.009 [doi] PST - ppublish SO - Regul Toxicol Pharmacol. 2009 Jun;54(1):23-42. doi: 10.1016/j.yrtph.2009.01.009.