Innovative Research for a Sustainable Future www.epa.gov/research Madison Feshuk feshuk.madison@epa.gov ORCiD 0000-0002-1390-6405 Session Title: Computational Toxicology II Abstract Number/Poster Board Number: 4660/P706 Capturing prenatal developmental toxicity data using the Data Collection Tool (DCT): Pilot curation summary Madison Feshuk1, Sean Watford2, Saranagapani Addanki1, Whitney Fies3, Jessica Wignall3, Amar Singh1, Katie Paul Friedman1 1 Center for Computational Toxicology and Exposure, ORD, US EPA, RTP, NC, 2 Center for Public Health and Environmental Assessment, ORD, US EPA, Washington, DC 3ICF, Fairfax, VA History & Current Workflow ToxRefDB contains in vivo data from over 5000 animal studies for over 1000 chemicals. This database was developed via manual curation. The data collection tool (DCT) is an Oracle APEX software developed for curation of additional legacy documents with enhanced quality control and data provenance capabilities. The DCT includes: • Document allocation, curation and workflow management among users, and management review with data conflict resolution, resulting in a record that directly links quality-controlled curation to source documents. • Curation of basic study design metadata, dose-response, treatment- related and critical effects, and endpoint testing status information (with controlled vocabulary developed for ToxRefDB). • In vivo study results inform toxicity predictions as training data or may be used to build scientific confidence in the performance of new approach methodologies (NAMs). • NAM and animal study data need to be computationally accessible and interoperable. • An application-driven curation workflow was created to support expansion of the chemical and study data coverage in the Toxicity Reference Database (ToxRefDB). As curation of hundreds of additional DERs and study types (including chronic, subchronic, and multi-generational reproduction) with the DCT continues, this pilot dataset will be used to construct a sustainable pipeline for loading new legacy curations into ToxRefDB. These DEV studies will be reevaluated to understand their value added when compared to other DEV studies in future ToxRefDB releases. With ongoing curation, ToxRefDB will become a better resource for scientists and the interested public to access thousands of animal toxicity testing results, which is a crucial component in NAM validation to ultimately achieve reductions in animal testing. Rationale Disclaimer: This poster does not necessarily reflect U.S. EPA policy Figure 1: Inside a DCT Curation: The study wizard navigation bar displays the sections of the curation workflow: Chemical & Composition, Study, Dose, Dose Treatment Group, Dose Treatment Group Effect, and Observation. The Chemical & Composition page (displayed) features a document viewer that allows curators to view documents on a new tab within their internet browser. Results Conclusions Future Directions Acknowledgements Chemicals Studies Treatment Groups Treatment Groups with Effects Effectsa Critical Effectsb Unique Effectsc Unique Critical Effectsd Total 36 72 588 364 2079 673 155 119 Rat 35 35 290 183 1186 273 95 84 Rabbit 34 34 278 173 829 170 82 58 Mouse 3 3 20 8 64 6 22 5 Prenatal developmental (DEV) studies were selected for curation since they represent a current data gap for NAM development and validation. Data were extracted and made computationally accessible for 72 prenatal developmental (DEV) data evaluation records (DERs) from the EPA’s Office of Pesticide Programs (OPP). Dose Treatment Group Fetal F0 0 mg/kg/day 10 mg/kg/day 30 mg/kg/day 100 mg/kg/day Dose Fetal F0 Fetal F0 Fetal F0 Figure 2: DEV example of Dose Treatment Groups: As a prenatal developmental study design example, the number of doses administered (4) is multiplied by the number of treatment groups (2, dams and their litters) to determine the number of dose treatment groups (8) examined for effects at the time of sacrifice. Table A: Summary statisti