From protocol to statistics,
without a single export.
Arion is the eCRD platform for clinical trial data capture, review and analysis. Study design, casebook entry, queries, SDV, protocol deviations and built-in statistics run on one database — so the number in your report is the same object the site typed into the eCRF.



Four stages, one closed loop
Design, capture, review and analyse are not four systems handed off in sequence — they are four views of the same database, so nothing is ever exported to get from one to the next.
The same field value a site enters in the casebook is the one a statistician analyses — no copy in between.
Every other EDC hands you off to a second system for analysis
Most competitor tools export to a separate analytics layer or treat reporting as its own module. Every seam is a place data can drift from what the site actually entered. Arion runs descriptive statistics, group comparison, survival analysis and predictive modelling directly against the same field values captured in the casebook — no export, no reconciliation, no provenance gap.
Three export seams versus zero — the same comparison shown for each capability on the platform pages.
One workspace, the whole study
Every stage of a study — from designing the protocol to reading the final statistics — lives in the same controlled environment.
EDC & eCRF Capture
Visit-based eCRF forms, tri-state screening and eligibility, and a normalized field-level data model that keeps every value traceable back to its visit and form — with validation that never blocks a save.
Study Builder
AI-assisted protocol extraction, a drag-and-drop event and field builder, and a structural-change workflow that shows the exact impact on existing patient data before you confirm it.
Queries & Data Quality
Saves are never blocked. Out-of-range and missing-required findings become candidate queries on a study-defined policy, and reviewers manage the full lifecycle from one workspace.
Source Data Verification
Configure verification requirements once in study design; monitors verify or flag discrepancies from a dedicated patient SDV workspace, with linked queries that auto-close when the discrepancy is resolved.
Protocol Deviations
Out-of-window visits, prohibited medications, missed visits and eligibility waivers raise deviations automatically; review, severity, and CAPA tracking happen alongside manually reported ones.
eCOA & Remote Capture
Access-code protected, signed-JWT public forms with SMS invitations, delivered in a menu-less mobile canvas that keeps the patient focused on one form at a time.
Built-in Analytics
Descriptive statistics, group comparison, survival analysis and explainable ML run directly against live study data, with no reconciliation step between the eCRF and the report.
Audit, RBAC & Signatures
Organization- and center-scoped role definitions enforced identically in the API and the UI, append-only audit entries with before/after values, and password-confirmed PI signatures.
See Arion on your protocol
Bring a protocol or an existing study and we'll show you what it looks like designed, captured and analysed in Arion.
