Jana Spinner worked on the pharmaverse/aNCA pharmacometrics codebase, focusing on improving the accuracy of pharmacokinetic interval calculations. She addressed a critical bug by refactoring the logic for determining end times in PK intervals when the TAU value was missing, opting to use AFRLT instead of NFRLT for the last dose interval. This adjustment enhanced the reliability of PK reports and ensured data integrity, particularly in scenarios with incomplete dosing information. Jana’s work, implemented in R and leveraging her skills in data formatting and pharmacokinetics analysis, resulted in more robust handling of edge cases with minimal maintenance overhead and clear traceability.