Research · head to head
Castor EDC vs Form Bio
Castor EDC
Research
Electronic data capture and eConsent for clinical trials, built for investigator-initiated studies as well as sponsors
- From
- On request
- Rated
- -
Form Bio
Research
Computational platform for cell and gene therapy design and manufacturability
- From
- On request
- Rated
- -
The short version
- Each has a real cost: Castor EDC nothing is published: pricing is quoted only after a scoping call and protocol review, so budgeting a grant application means asking for a quote months before the study is funded and hoping the scope holds.; Form Bio the company has pivoted twice since spinning out of Colossal Biosciences in 2022, from general computational life sciences to cell and gene therapy and then to AAV manufacturability, so any evaluation more than a year old describes a product that is no longer the commercial focus.
- They diverge on capability: Castor EDC covers Browser-based study build, Form Bio covers FormManufacturing.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Castor EDC and Form Bio actually diverge.
| Attribute | Castor EDC | Form Bio |
|---|---|---|
| Platforms | Web, iOS, Android | Web, Cloud |
Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Research).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Castor EDC
- Browser-based study build
- 21 CFR Part 11 workflows
- eConsent
- ePRO and surveys
- Randomisation
- Per-study licensing
- Grant-funded pricing paths
- Data export
Only in Form Bio
- FormManufacturing
- Payload design optimisation
- Genome integrity analysis
- Manufacturability prediction
- In silico workflows
- Scale-up monitoring
- Cell and gene therapy focus
- Collaboration
What people use each for
The jobs each tool is most often brought in to do.
Castor EDC
- An academic hospital running an investigator-initiated trial that cannot fund a sponsor-grade EDC contract or a data management CROnot Form Bio
- A medical device company collecting post-market clinical follow-up data with Part 11 audit trailsnot Form Bio
- A multi-site registry that needs remote eConsent because participants are recruited nationally rather than at a clinicnot Form Bio
- A biotech running a small phase two study that wants the database built by its own clinical team in weeks rather than commissionednot Form Bio
Form Bio
- A gene therapy developer discovering manufacturability problems with an AAV construct late in process development and wanting to move that analysis earliernot Castor EDC
- A biotech comparing several candidate payload designs in silico before committing to expensive production runsnot Castor EDC
- A CDMO characterising what a client construct actually produces against what was specifiednot Castor EDC
- A programme team needing genome integrity evidence to support regulatory conversations about product consistencynot Castor EDC
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Castor EDC
- Nothing is published: pricing is quoted only after a scoping call and protocol review, so budgeting a grant application means asking for a quote months before the study is funded and hoping the scope holds.
- Price scales on protocol complexity rather than a simple unit, so two studies with the same participant count can be quoted very differently and there is no public benchmark to argue against.
- Modules such as eConsent, ePRO and randomisation are quoted on top of the base platform, so the headline EDC figure is rarely the number that appears on the final proposal.
- It is deliberately lighter than the full sponsor suites, so a study that grows into a global registrational programme needing integrated CTMS, safety, IRT and full trial supply management will need additional systems and the interfaces between them.
- Regulatory responsibility does not transfer with the software: the platform supports Part 11 compliant workflows, but system validation for your intended use, SOPs and audit readiness remain your obligation and your cost, which sponsors new to EDC consistently underestimate.
Form Bio
- The company has pivoted twice since spinning out of Colossal Biosciences in 2022, from general computational life sciences to cell and gene therapy and then to AAV manufacturability, so any evaluation more than a year old describes a product that is no longer the commercial focus.
- The current offering launched AAV-focused, so developers working in lentiviral, mRNA or cell therapy modalities are outside the scope the platform was built and validated for.
- No pricing is published and engagements are scoped per programme, which makes it impossible to size the commitment before entering a sales process.
- This is a young venture-funded company whose analyses feed regulatory-facing decisions, so continuity of the vendor over a multi-year development programme is a genuine diligence question rather than a formality.
- Predictive manufacturability models need real production data to be trustworthy, and the value depends on how much of that a young vendor has accumulated, which is difficult for a buyer to verify independently.
Pricing, plan by plan
Castor EDC
On request- Castor EDC$undefined/year
- Priced per study on protocol complexity, duration, sites and modules
- 21 CFR Part 11 and ICH GCP workflows
- eConsent, ePRO and randomisation modules quoted separately
Form Bio
On request- FormManufacturing$undefined/year
- Pricing only through a sales process
- Scoped per therapeutic programme rather than per seat
- AAV-focused offering at launch
Which should you pick?
Choose Castor EDC if
- You need browser-based study build.
- You work on Web, iOS, Android.
- You also want 21 cfr part 11 workflows.
Choose Form Bio if
- You need formmanufacturing.
- You work on Web, Cloud.
- You also want payload design optimisation.
Questions people ask
- Is Castor EDC or Form Bio better?
- Neither clearly leads. Castor EDC starts at On request and Form Bio at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Castor EDC or Form Bio?
- Castor EDC starts at On request and Form Bio at On request.
- Does Castor EDC or Form Bio run on more platforms?
- Castor EDC runs on Web, iOS, Android. Form Bio runs on Web, Cloud.
- What is Castor EDC best used for?
- Castor EDC is most often used for an academic hospital running an investigator-initiated trial that cannot fund a sponsor-grade edc contract or a data management cro, a medical device company collecting post-market clinical follow-up data with part 11 audit trails, a multi-site registry that needs remote econsent because participants are recruited nationally rather than at a clinic, a biotech running a small phase two study that wants the database built by its own clinical team in weeks rather than commissioned. Of those, an academic hospital running an investigator-initiated trial that cannot fund a sponsor-grade edc contract or a data management cro and a medical device company collecting post-market clinical follow-up data with part 11 audit trails are not what Form Bio is typically brought in for.
- What can Castor EDC do that Form Bio cannot?
- Castor EDC covers Browser-based study build, 21 CFR Part 11 workflows, eConsent, ePRO and surveys. Form Bio covers FormManufacturing, Payload design optimisation, Genome integrity analysis, Manufacturability prediction.
Answered from the vendors’ own pages
Castor EDC: Is there a free academic version?
No published free tier. There are academic, non-profit and grant-funded pricing paths, but each is quoted rather than self-service.
Form Bio: What does Form Bio sell now?
FormManufacturing, launched in 2026, an AAV-focused platform for predicting, optimising and monitoring manufacturability of genetic medicines from construct design through scale-up.
Castor EDC: Is it 21 CFR Part 11 compliant?
It supports Part 11 compliant workflows with audit trails and electronic signatures. Validating the system for your specific use remains your responsibility.
Form Bio: Is it still a general bioinformatics platform?
No. It has narrowed from broad computational life sciences tooling to cell and gene therapy, and within that to AAV.
Castor EDC: Do I need a programmer to build a study?
No. Case report forms are configured in the browser, which is the main reason academic groups adopt it.
Form Bio: Where did the company come from?
It spun out of Colossal Biosciences in 2022.
Castor EDC: How long does a quote take?
Castor states a full pricing proposal within five business days of sharing the protocol.
Form Bio: Is pricing published?
No. Engagements are scoped per programme through a sales process.
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