Formative and validative human factors studies for automated insulin dosing app

Assessing task performance for the use of critical safety-related features ahead of clinical trials

Screenshot of Tidepool Loop automated insulin dosing app. The app has a blood glucose reading, a green status circle indicator, several graphs including blood glucose and active insulin, and a toolbar at the bottom with five icons.
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Flexible Problem-Solving

Re-wrote protocols and moderators guides on a short deadline to change a formative study to a validation study, redesigning tasks in order to produce data that could be submitted to the FDA

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Root Cause Analysis

Rapid scorekeeping and note-taking during sessions, conducting root cause probing and analysis

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Project Management

Project management for in-person study including collecting consent forms, organizing mobile devices and insulin pump prototypes for each participant over several days, troubleshooting prototype issues during sessions, and managing recordings and live streams including webcams and screen mirroring

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[Report] Writing

Drafting [document name(s)] including descriptions of use errors and close calls, residual risk commentary, risk mitigation efforts already in place, and any changes to the product which would justify additional testing before clinical trials

Impact

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Drafted consistent and thorough documentation of risk analysis for submission to the FDA
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Recommended design updates to the app for tasks with an unacceptably high number of use errors
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Ensured that studies were organized, well-documented, and ran on schedule
Human factors testing setup of several items on a desk underneath a webcam. The items include a sharps container, an iphone, several paper booklets, insulin vials, hand sanitizer, and a CGM sensor and transmitter.