EDC platform review

Castor EDC review

Castor EDC is a cloud electronic data capture system with a no-code form builder, alongside Castor's ePRO, eConsent and randomisation modules. It is used by academic researchers, MedTech and biotech companies and CROs for interventional trials, registries, chart reviews and post-market follow-up.

Facts checked: November 2026 · Rank 3 of 18 · How we rank

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Our score: 7.5/10
Best for: Self-built academic and MedTech studies, with UK, EU, US or Australian hosting
Pricing: Per-study subscription; vendor describes flat-rate study licensing with no per-subject fees
Vendor: Castor (Ciwit B.V.), Amsterdam, Netherlands

Unique feature

Choice of EU, UK, US or Australian hosting

Castor states that its applications run on managed virtual private servers on Microsoft Azure, with data centres in the Netherlands and Ireland, London and Cardiff, Virginia and California, and New South Wales, so a study can keep its data in the region its approvals require.

Fit

Who Castor EDC suits

Best for

Academic or MedTech studies where the team builds its own eCRFs
Patient registries and post-market follow-up studies
Small sponsors wanting a short monthly subscription for one study

Less suited to

Teams looking for a free tier (vendor states a per-study subscription cost)
Studies needing offline data entry by site staff (not stated for the EDC)
Essentials users needing mobile ePRO or eConsent, which require the full platform

Features

Key features

What the vendor documents publicly, checked against its own pages. “Not stated” means we could not confirm it, not that it is missing.

✓ Yes◐ Partly+ Add-on– No? Not stated

+Vendor builds your databaseData Management services: experts "build, clean, and deliver your data"
✓Build forms yourselfNo-code form builder with 21 field types and templates
✓Audit trailVendor describes a Part 11 audit trail
✓Electronic signaturesElectronic signing listed among data capture features
✓Edit checks at data entryReal-time validation checks during data entry
✓Queries and source data verificationQuery management and configurable SDV plans per site
✓RandomisationBlinded, weighted, variable-block and stratified randomisation
✓ePRO and participant self-entryCastor ePRO surveys and Castor Connect participant app
✓eConsentCastor eConsent module; not included in Essentials
◐Offline mobile data collectionCastor Connect ePRO app stores data offline with manual sync
✓Forms in several languagesForms and surveys in any language; EDC interface English only
✓CDISC export (ODM / SDTM)CDISC ODM-XML for study structure and data export; SDTM not stated
✓Built-in reports and dashboardsPatient progress and study health dashboards
?Built-in statistical analysisExports to CSV, Excel and SPSS
?Numbered tables, figures and listings
✓APICastor API
–Free or open-source optionFree trial only; vendor states a per-study subscription cost

Verdict

Strengths and limitations

Strengths

No-code form builder for self-build studies
EDC, ePRO, eConsent and randomisation from one vendor
Hosting choice across EU, UK, US and Australian Azure regions

Limitations

No published pricing
No free tier; free trial only
EDC user interface is English only

Details

Pricing, hosting and regulation

Pricing

Per-study subscription; vendor describes flat-rate study licensing with no per-subject fees. Published prices: not published. Pricing source.

Hosting and security

Hosting regions: EU (Netherlands, Ireland), UK (London, Cardiff), Australia (New South Wales), US (Virginia, California). Vendor-managed cloud on Microsoft Azure; no self-hosting option stated.

Certifications: ISO 27001 (vendor), NEN 7510 (vendor).

Regulatory support

Vendor states Essentials is "Fully 21 CFR Part 11 compliant" and claims ICH GCP, HIPAA and GDPR compliance.. Whatever the software offers, your own procedures, validation and training are still needed for a regulated study.

Scale and set-up

Vendor reports more than 31,900 clinical studies, over 9.5 million participants and 70,000 investigator sites in 171 countries; unlimited users per study.. Mainly self-build. Vendor states over 90% of studies are deployed within 4 weeks and cites 3-4 weeks for standard builds, 4-8 weeks when managed..

Alternatives

Sources (checked November 2026)