Software Application Profile: T-Rx: A toolbox for reproducible processing of prescriptions (Rx) stored in electronic health record databases

T-Rx enables scalable, reproducible extraction and phenotyping of prescription data from UK EHR databases, facilitating large-scale genetic and epidemiological studies.

• Why it matters: Accurate, reproducible phenotyping of prescriptions is essential for understanding treatment outcomes, but current methods lack transparency and scalability, hindering cross-study comparisons.
• What they did: The open-source R package T-Rx comprises three modules—Extraction and Imputation, Exposure Ascertainment, and Phenotyping—that process prescription data, convert events into exposure periods, and generate phenotype dataframes, respectively.
• The result: T-Rx streamlines prescription data analysis, enabling researchers to perform reproducible, scalable studies, and supports integration with biobank data to advance personalized medicine research.