Tandem Diabetes Care2024

    A workspace for clinical trial teams.

    Clinical teams used three platforms to set up a study. I designed one workspace for study setup, sites, and participants, with access based on each admin’s role.

    My role
    Product Designer
    Scope
    0 → 1 · IA & workflows · Stage 1
    Constraints
    Existing patterns · regulated context · fixed deadline
    Tandem Source Admin workspace with active clinical studies
    Source Admin brings clinical trial operations into a role-based workspace.
    DESIGN APPROACH

    I organized the workspace by study, site, and participant, and separated the responsibilities of the two admin roles.

    StudySiteParticipant
    PEOPLE & PROBLEM

    Two admin roles needed different workflows.

    Clinical Affairs Admins set up studies and manage their lifecycle. Study Admins handle day-to-day participant operations. The old workspace did not make that distinction clear.

    SETUP & LIFECYCLE

    Clinical Affairs Admin

    Creates and configures studies, adds sites, and assigns the admins responsible for initial enrollment.

    DAY-TO-DAY OPERATIONS

    Study Admin

    Manages participant accounts, exports participant lists and reports, and supports execution at each site.

    Both roles needed to use the same system while keeping their responsibilities separate. The design also had to fit the patterns of the existing medical platform.

    DISCOVERY

    Setting up a study took three platforms.

    “I have to juggle three different platforms just to set up one study.”Clinical Affairs Admin

    Create

    Study setup crossed three platforms. Teams needed a single entry point for the whole task.

    Find

    Dozens of active and ended trials made it difficult to identify the right study by name or code.

    Manage

    The system structure did not match site-by-site trial operations, causing repetitive navigation.

    I used these findings to revise the hierarchy, study list, and creation flow.

    DESIGN DECISIONS

    Organizing the workspace around trial operations.

    DECISION 01 · MANAGE

    Match the hierarchy to trial operations.

    I organized the workspace around Study → Site → Participant. Shared setup belongs at the study level; day-to-day execution stays within the relevant site. This keeps actions within the right study or site and reduces backtracking.

    Revised hierarchy of Study, Site, and Participant
    Study-level setup supports site-level execution without mixing their scope.
    DECISION 02 · FIND

    Make the right study easier to recognize.

    The dense table gave every field similar weight. Study cards emphasize the identifiers admins look for first: code, name, type, and status. Separating active and ended studies narrows the scan before users open a record.

    Study cards emphasizing key identifiers and status
    Study cards group the identifiers admins need beside the details link.

    DECISION 03 · CREATE

    Create a study in one flow.

    A guided creation flow brings Basic information, Sites, and Admins into one sequence. It shows required inputs at the relevant step and makes progress visible, replacing the handoffs across three tools.

    Unified study creation form
    A single creation flow gathers the information needed to initialize a study.
    Basic information, Sites, and Admins steps
    The stepper shows the current stage and what remains.
    DESIGNING FOR SAFETY

    Moving “End Study” out of everyday work.

    During validation, people accidentally clicked “End Study.” I revised where the action appeared to reduce that risk.

    V1

    On the study card

    Fast to access, but exposed during routine scanning.

    V2

    Inside study details

    Lower exposure, but still available in the working interface.

    V3

    Through a controlled path

    Removed from the everyday interface to reduce accidental clicks.

    Iterations that progressively remove the End Study action from routine interfaces
    Ending a study moved to a controlled path outside the routine interface.

    I accepted more steps to end a study because the earlier placements exposed the action during routine work.

    THE SYSTEM IN ACTION

    From study setup to work at each site.

    Full Source Admin workflow across roles, study setup, sites, and participants
    The full workflow maps both admin roles across studies, sites, and participants.

    01 · Set up a study

    A Clinical Affairs Admin creates a study through one guided sequence.

    Study creation: basic information, sites, and admins · Silent interface demonstration

    02 · Add participants

    Participants are added at the study level before site-level execution begins.

    Adding participants within the study structure · Silent interface demonstration

    03 · Export site-level data

    A Study Admin exports participant information for reporting and audits.

    Exporting participant data at the site level · Silent interface demonstration
    OUTCOMES & REFLECTION

    What we learned at Stage 1.

    9/10

    Ease-of-use rating

    Moderated usability sessions with 5 participants, rated after task completion.

    Used at Stage 1 launch

    The Clinical Trial lead confirmed that the workflow fit the team’s day-to-day operations.

    Hierarchy used in later work

    The Study → Site → Participant model carried into subsequent Source Admin work.

    Less exposure to “End Study”

    The End Study action moved out of the routine interface and into a controlled path.

    Organizing the work by study, site, and participant helped me decide what belonged on each screen. I also had to check that new patterns fit the task and felt familiar within the existing platform.

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