Castor
Amsterdam clinical trial platform with modular EDC, eCOA, eConsent and CDMS plus build services
Quick Overview
| Company | Ciwit B.V. (Castor) |
|---|---|
| Category | Clinical Trial Software |
| Headquarters | Amsterdam, Netherlands |
| Founded | 2012 |
| EU Presence | Yes - Netherlands (EU) |
| Data Location | Not stated on the pages checked |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | EDC, eCOA/ePRO, CDMS, eConsent, Catalyst AI source data extraction, open API, data management and eCOA services, academy training |
| Pricing | Pricing on request; itemised fixed-scope proposal |
| Best For | Teams that want to pick modules and choose between self-build and a vendor-led build |
| Replaces | Veeva Vault EDC, Medidata Rave |
Detailed Review
Castor's privacy policy names Ciwit B.V., also known as Castor, at Fred. Roeskestraat 115 in Amsterdam. The About page says Castor began in 2012 as a project by Dr. Derk Arts.
For patient data uploaded to CDMS or eConsent, the same policy says Castor acts as processor, and as controller for website, marketing and account data.
Modular by design
The platform splits into EDC, eCOA, CDMS and eConsent, and the EDC page says you can select only the modules you need. A Catalyst feature extracts source data with AI while a human reviews each result.
An open API is offered for connecting in-house systems and other vendors.
Three ways to build a study
The EDC page offers self-service, assisted build or a Castor-led study build, with deployment quoted at 3 to 12 weeks. Services include data management, eCOA translation and device logistics, and training through Castor Academy.
How buying works
There are no list prices. The pricing page describes a form, a short call, a protocol review, a tailored demo and then an itemised fixed-scope proposal, promised within 5 business days of receiving the inputs.
Limitations to Consider
The pages checked do not state a data centre region, and the EDC page does not mention 21 CFR Part 11 explicitly, although it links to GDPR and ISO documents. The vendor-led build and services raise the total cost beyond the licence. Public prices do not exist, so budgeting needs the proposal step. For a stated hosting region compare Climedo or Marvin EDC.
Who Should Use Castor
Sponsors, CROs and device companies that want a modular platform and the option to hand the study build to the vendor.
Pros and Cons
Pros
- Modular components
- Three study build routes
- Open API
- Dutch legal entity named in the privacy policy
- Fixed-scope proposals
Cons
- No hosting region stated on the pages checked
- No public pricing
- Part 11 not named on the EDC page
- Services add to the total cost
Alternatives to Castor
Other European clinical trial software worth comparing before you decide:
Climedo
Germany · Munich EDC and ePRO with servers in Frankfurt and unlimited users
Marvin EDC
Germany · CDISC-native EDC with RTSM, ePRO and German hosting
Ledidi
Norway · Oslo platform with AI study setup and published seat prices
Viedoc
Sweden · Uppsala eClinical suite with ISO 27001:2022 and SOC 2 Type 2
See all European clinical trial software or compare them directly against Veeva Vault EDC on our alternatives page.
Frequently Asked Questions
The privacy policy names Ciwit B.V., also known as Castor, with an address in Amsterdam.
No. The pricing page describes a quote process and promises an itemised fixed-scope proposal within 5 business days of receiving the study inputs.
Yes. The EDC page lists self-service, assisted build and a Castor-led build as support levels.