2026 (9 POSTS)
Nagyal M, Kopanska K, Rovida C, Antignac E, Barton-Maclaren T, Congreave I, Escher SE,…, Patlewicz G , et al. From thresholds to odds: AI-enhanced applications of the threshold of toxicological concern (TTC) in modern risk assessment. Oral Session 3, Poster OR-12 , American Society for Cellular and Computational Toxicology (ASCCT) 15th Annual Meeting, Durham, NC, October 28, 2026.
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Topics: NAMs , risk assessment
Patlewicz G , Mihalchik AL . Refinement of the threshold of toxicological concern (TTC): A computational framework for cross-scheme comparison of TTC values. Poster Session 1 , Poster 24, American Society for Cellular and Computational Toxicology (ASCCT) 15th Annual Meeting, Durham, NC, October 27, 2026.
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Topics: computational toxicology
East A , Klaren W , Wikoff D , Patlewicz G . Identifying potential co-exposures with food additives using data mining and machine learning approaches across EPA’s Consumer Product Database (CPDat). Abstract M-36, Poster Session, International Society of Exposure Science (ISES) 2026 Annual Meeting, Vancouver, BC, Canada, October 5, 2026.
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Topics: Exposure Assessment , food additives , food safety
Patlewicz GY , Mihalchik AL . 2026. Revisiting the Threshold of Toxicological Concern: A computational framework for structural classification, cross-scheme comparison and opportunities for refinement. Comput Toxicol 39(Sept):100443; doi: 10.1016/j.comtox.2026.100443 .
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Topics: computational toxicology
Patlewicz GY , Mihalchik AL , East A , Borghoff SJ , Thompson CM . 2026. Investigating the feasibility of deriving new environmentally relevant thresholds of Toxicological Concern (TTCs) from estimated chronic human equivalent benchmark dose (eBMDHED ) values. Comput Toxicol 38(June):100417; doi: 10.1016/j.comtox.2026.100417 .
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Topics: benchmark dose estimation (BMD) , computational toxicology
Fitch S , Lozy F, Mitchell C, Patlewicz G , Wood A. Use of new approach methodologies in the safety assessment of dietary supplements—Parts one and two . Webinar series, Council for Responsible Nutrition (CRN), Washington, DC, May 2026.
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Topics: food additives , food safety , Food science , NAMs , safety assessment
Patlewicz G , Mihalchik A , Thompson CM , East A , Borghoff S . Investigating the feasibility of deriving a new environmentally relevant Thresholds of Toxicological Concern (TTCs) from estimated human equivalent benchmark dose (eBMDHED ) values. Abstract 4013, Society of Toxicology 65th Annual Meeting, San Diego, CA, March 2026.
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Topics: benchmark dose estimation (BMD) , genotoxicity , risk analysis , risk assessment
Patlewicz G , Judson, Paul Friedman K, Wetmore BA, DeVito MJ, Harrill JA, Carstens KE, Houck KA, et al. 2026. Insights derived from testing a library of per- and polyfluoroalkyl substances (PFAS) in a battery of new approach methods (NAMs). J Toxicol Environ Health B 29(1):1-69; doi: 10.1080/10937404.2025.2521615 . PMID: 40619890.
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Topics: NAMs , PFAS
Wambaugh JF, Sipes NS, Padilla Mercado G, Arnot JA, Bertato L, Brown TN, Chirico N,…, Patlewicz G , et al. 2026. Collaborative evaluation of in silico predictions for high throughput toxicokinetics. Toxicol In Vitro 110(Jan):106150; doi: 10.1016/j.tiv.2025.106150 . PMID: 40983213.
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Topics: toxicokinetics
2025 (10 POSTS)
Patlewicz G , Charest N, Ross A, Bledsoe HC, Vidal J, Faramarzi S, Hagan B, Shah I. 2025. Building a compendium of expert driven read-across cases to facilitate an analysis of the contribution that different similarity contexts play in read-across performance. Comput Toxicol 35(Sept):100366; doi: 10.1016/j.comtox.2025.100366 .
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Topics: NAMs
Nyffeler J, Harris FR, Willis C, Byrd G, Blackwell B, Escher BI, Kasparek A, Nichols J,…, Patlewicz G , et al. 2025. A combination of high-throughput in vitro and in silico new approach methods (NAMs) for ecotoxicology hazard assessment for fish. Environ Toxicol Chem 44(9):2599-2621; doi: 10.1093/etojnl/vgae083 . PMID: 39937625.
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Topics: ecotoxicology , NAMs
Karamertzanis PG, Rasenberg M, Shah I, Patlewicz G . 2025. Modelling in vitro mutagenicity using multi-task deep learning and REACH data. Chem Res Toxicol 38(8):1382-1407; doi: 19.1021/acs.chemrestox.5c00152 . PMID: 40680271.
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Topics: modeling , regulatory toxicology
Kenyon EM, DeVito MJ, Patlewicz G , Adams LD, Thomas RS, Ambroso JL, Yang X, Blake JC, et al. 2025. Subchronic toxicity of four per- and polyfluoroalkyl substances by oral exposure in Sprague Dawley rats. Toxics 13(7):524; doi: 10.3390/toxics13070524 . PMID: 40710969.
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Topics: PFAS
Leary A, Shah I, Patlewicz G . 2025. An exploration of the use of hybrid fingerprints in Generalized Read-Across and their impact on predictive performance for selected in vivo toxicity outcomes. Comput Toxicol 34(June):100349; doi: 10.1016/j.comtox.2025.100349 .
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Topics: NAMs , read-across
Hagan B, Shah I, Patlewicz G . 2025. Can graph similarity metrics be helpful for analogue identification as part of a read-across approach? Comput Toxicol 34(June):100353; doi: 10.1016/j.comtox.2025.100353 .
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Topics: read-across
Hughes MF, DeVito MJ, Patlewicz G , Thomas RS, Adams LD, Ambroso JL, Yang X, Upadhyay BG, et al. 2025. Immunotoxicity of four per- and polyfluoroalkyl substances following 28-day oral repeat dosing in rats assessed by the anti-sheep red blood IgM response. Toxics 13(6):490; doi: 10.3390/toxics13060490 . PMID: 40559963.
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Topics: PFAS
Hagan B, Groff L, Patlewicz G , Shah. 2025. Toward metabolic similarity in read-across: A case study using graph convolutional networks to predict genotoxicity outcomes. Chem Res Toxicol 38(6):1122-1133; doi: 10.1021/acs.chemrestox.5c00120 . PMID: 40432291.
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Topics: genotoxicity
Payton A, Hickman, Chappel J, Roell KR, Koval LA, Eaves LA, Chou CK,…, Patlewicz G , et al. 2025. TAME 2.0: Expanding and improving online data science training for environmental health research. Front Toxicol 7(Feb 12):1535098; doi: 10.3389/ftox.2025.1535098 . PMID: 40012886.
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Topics: Exposure Assessment
Patlewicz G , Williams AJ, Adams M, Shah I, Paul-Friedman K. 2025. A cheminformatics workflow to select representative TSCA chemicals for New Approach Methodology (NAM) screening. Chem Res Toxicol 38(1):129-144; doi: 10.1021/acs.chemrestox.4c00367 . PMID: 39655894.
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Topics: NAMs
2024 (15 POSTS)
Firman JW, Boobis A, Hollnagel HM, Kaiser S, Lovell DP, Moretto A, Muller S,…, Patlewicz G . 2024. Evaluating the consistency of judgements derived through both in silico and expert application of the Cramer classification scheme. Food Chem Toxicol 194(Dec):115070; doi: 10.1016/j.fct.2024.115070 . PMID: 39447833.
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