Explore the latest updates, improvements, and fixes across Trial Deck.
Summary
More of Trial Deck now works the way real study support often works in practice, with multiple supporters available across key participant workflows. Alongside that, this release makes data query collaboration easier, tightens privacy and registration controls, and improves the performance and reliability of exports and background processing.
Highlights
Multiple supporters are now supported across key participant workflows
Data Query Management now supports multi-user query assignment
Participant registration and privacy controls have been strengthened
Data export performance and status handling have been improved
System performance and background processing have been optimized
Reliability fixes applied across login, roles, and exports
Summary
This release is all about making Trial Deck feel more dependable in the day to day. Exports are easier to trust and monitor, Flow Builder catches issues earlier, participants can sign in more simply, and teams get more control over notifications, safeguarding, and channel capacity — all alongside a round of security and defect fixes.
Highlights
Added validation checks for Trial Builder filters
Improved data export reliability and status handling
Enabled adjustable channel capacity
Added one-time email login for participants
Added support for test notifications
Improved safeguarding checks and participant redirects
Applied security and defect fixes across exports and the builder
Summary
This update makes day-to-day trial management feel cleaner and more reliable. Data queries are easier to work through, participant security is tighter, questionnaire handling is more robust, and a round of performance, monitoring, and system improvements helps the platform run more smoothly overall.
Highlights
Improved data query management with direct query closure and duplicate-query visibility
Stronger questionnaire handling, including a better Date of Birth input and safer validation behaviour
Automatic logout for blocked participants to tighten access control
Performance and stability improvements across the Overview page and participant-facing routes
System upgrades, key rotation tooling, login-attempt monitoring, and defect fixes
Summary
This release makes some of the most practical parts of Trial Deck feel faster and safer to use. Navigation and questionnaire loading are quicker, audit logs are easier to work with, exports are more tightly controlled, and Digital Interventions gets better support for concurrent questionnaire flows.
Highlights
Faster navigation and improved participant questionnaire loading
Audit log enhancements, including restored URL sharing and Type ID search
Data export security update so only the requesting user can download the export file
Concurrent questionnaire support and notification improvements in Digital Interventions
Visible Trial Deck version number and a fix for the decision block timeout defect
Summary
This release focuses on the kind of performance work that makes Trial Deck feel smoother in everyday use. Key pages are more responsive, approvals and questionnaire flows are more robust, and some foundational backend changes help improve stability behind the scenes.
Highlights
Performance and usability improvements across the Channels page, approvals navigation, and questionnaire warnings
Backend stability improvements through a Redis cache upgrade
Bug fixes to improve reliability in trial setup workflows
Bug fixes to improve reliability in Data Query workflows
Summary
This release introduces the new Data Querying system into production, bringing a substantial update to how research teams can review and manage participant data. Alongside that, it adds more control over participant workflows, makes participant records easier to find, and improves API access for teams working with participant data at scale.
Highlights
Researchers can now move participants back to a previous block in the workflow
Participants can now be searched by email address in the participant list
A new bulk API endpoint allows participant records to be retrieved more efficiently
Additional participant progress and questionnaire handling fixes improve day-to-day reliability
Summary
This release lays the groundwork for a much bigger shift in how Trial Deck handles data review. It introduces the first phase of Data Query Management with end-to-end workflows for researchers and supporters, and starts turning queries into structured, trackable work across the platform — alongside an improved randomisation option for studies using simple coin-flip allocation.
Highlights
Introduced Data Query Management (Phase 1) with end-to-end workflows for researchers and supporters
Added the workflow engine that underpins tracked, assignable data query tasks across the platform
Added simple unit full randomisation for studies using coin-flip allocation
Data Query Management remains behind a feature toggle while feedback is gathered ahead of wider rollout
Note: enabling data querying may affect licence costs
Summary
This release smooths out some of the more operational parts of Trial Deck. Exports are faster and better formatted, trial flow timing is more reliable, and participant state handling is more robust when steps are skipped — with export archiving introduced to reduce release-time load and Cloudflare now live to make the platform faster and more resilient.
Highlights
Improved data export formatting where questionnaire answers have changed
Improved export performance through cached data files
Enhanced block completion timing in Trial Builder
Fixed participant state handling when trial steps are skipped
Introduced end-to-end Data Query Management workflows for researchers and supporters (not yet enabled in UAT)
Export files older than 30 days are now archived
Cloudflare is now live for better performance, security, and resilience
Summary
This release makes Trial Deck’s export and review workflows feel more durable and easier to manage over time. Historical exports can now be archived, questionnaire results can be delivered straight to cloud storage as PDFs, and researchers get better visibility into participant responses and more control over moving participants through study workflows.
Highlights
Introduced archiving for historical exports to reduce load and improve system performance
Added cloud delivery of participant questionnaire results in PDF format
Added configurable destination folders for exports and questionnaires
Improved researcher views for reviewing completed participant questionnaires and study progress
Allowed researchers to move participants to the next block manually when needed
Reminder: data export files are archived after 30 days
Summary
This production release opens up more flexible ways to export, share, and route data through Trial Deck. Custom dataset exports now support CSV, questionnaire PDFs can be attached to notifications, Trial Builder gets more flexible logic controls, and the first groundwork for Data Query Management starts to appear behind the scenes.
Highlights
Custom dataset exports now support CSV output
Initial groundwork added for Data Query Management permissions and feature toggles
Questionnaire PDFs can be attached to system and custom email notifications
Trial Builder now supports opposite operators in filter block rules
Audit log navigation is faster with next and previous controls
New auto-completed flag makes automatic completion clearer