Guide · RegulatoryUpdated October 15, 2026

CTIS, the EU Clinical Trials Information System: a submission guide

CTIS is the single portal through which sponsors apply for, update and close out clinical trials in the EU. It does not collect your trial data, but it asks what your data system will do. This guide explains the portal, the dossier and the readiness work around it.

  • Part I and Part II explained
  • Lifecycle inside the portal
  • Not legal advice: check the EMA texts

Free sandbox · No credit card · 21 CFR Part 11 aligned

An application in the portal (illustrative)
  1. Sponsor prepares the dossier

    Part I (scientific) and Part II (national)

  2. Submission in CTIS

    One application for all member states concerned

  3. 3

    Validation and assessment

    Requests for information answered in the portal

  4. 4

    Decision per member state

    Authorisation, with conditions where set

  5. 5

    Conduct, modifications, safety reports

    Updates go through the same portal

  6. 6

    End of trial and results

    Notification, summary of results, layperson summary

Demo flow. Exact steps and timelines are set by the regulation and the EMA documents.

CTIS in one page

  • One portal, one application. Under Regulation (EU) No 536/2014, a sponsor submits a single application in CTIS for all member states concerned instead of separate national filings.
  • It is a submission and transparency system, not an EDC. CTIS holds the dossier, the decisions, the notifications and the public information. Participant data lives in your data capture system.
  • The dossier has two halves. Part I covers the scientific and safety content assessed jointly. Part II covers national aspects such as consent, recruitment and site suitability, assessed by each country.
  • The lifecycle continues after approval. Substantial modifications, safety reports, notifications and the end-of-trial and results steps all run through the same portal.
  • Readiness is about your records. Assessors and inspectors expect your data system to match what the dossier says: versions, audit trail, access control, consent handling and exports.

The portal

What CTIS is and who uses it

CTIS, the Clinical Trials Information System, is the EU single-entry point for submitting clinical trial information. It is run by the European Medicines Agency together with the member states and the European Commission, and it supports sponsors and authorities across the whole life of a trial. It replaced the older national submission routes under the Clinical Trials Directive. Trials authorised under that Directive and still running beyond 30 January 2025 had to be transitioned into CTIS, so for practical purposes any medicinal product trial with EU sites now lives in this system. Check the current EMA pages for the exact transition rules that apply to your trial.

Three groups use it. Sponsors, or the CROs and regulatory teams acting for them, prepare and submit applications and keep the trial record current. Member state authorities and ethics committees assess and decide. The public sees a transparency view of much of the trial information, which is why the content you upload has to be written with publication in mind. If you are working in a specific country, the national flavour of the same process is covered on our pages for Denmark, Sweden, France and Germany.

If you are deciding what the regulation itself changed and where your software fits, start with our EU Clinical Trials Regulation guide. This page goes one level down: the portal, the dossier and the preparation.

The dossier

Part I and Part II: what goes in

An initial application is split so that the parts that are the same everywhere are assessed together, and the parts that depend on national law are assessed locally. In general terms, Part I carries the scientific and safety substance: the protocol, the investigator brochure, the investigational medicinal product dossier and the documents about the product and its manufacture. Part II carries the national and participant-facing content: informed consent materials, recruitment and advertising, subject compensation, suitability of the investigator and the sites, and data protection information.

The exact document list and which authority assesses which section vary by country and by trial type, so treat any summary, including this one, as orientation and open the EMA sponsor handbook for the current list. What matters for your data system is how many of those documents describe it indirectly. The protocol defines the visits and the data. The consent form states what is collected and who sees it. The site suitability documents describe where data is entered. Each is a promise your system must keep.

The protocol is your build specification

Whatever the protocol says about visits, assessments and windows is what your case report forms and schedule must reproduce. A clean way to avoid mismatches is to build from the approved protocol and keep the build in step with every amendment. Our guide to protocol amendments without change orders and the note on eCRF versioning for mid-study changes explain how to do that without losing history.

Consent and participant information are part of the submission

Part II content is judged by the ethics side of the review, and the version approved is the version participants must see. If you use electronic consent, keep the approved text and the system record aligned, and read eConsent software for clinical trials for what to check.

After submission

The trial lifecycle inside CTIS

A summary of the stages the EMA sponsor handbook describes. Timelines and wording are set by the regulation and the EMA evaluation-timelines document, so they are deliberately not copied here.

StageWhat happens in the portalWhat your data system should be ready for
Initial applicationSponsor submits the dossier; the application is validated and then assessed. Requests for information are answered in the portal.A study build that matches the draft protocol, plus a test environment assessors and auditors can be told about.
DecisionEach member state concerned decides on the trial; for multinational trials the assessment of Part I is shared, with an individual national decision.Only approved forms and consent versions go live, per country if versions differ.
Substantial modificationChanges affecting safety, rights or data reliability are submitted, assessed and decided before they are implemented.Amend forms and schedule with a trail of who changed what, when and why.
Notifications and safety reportingStart, recruitment status, temporary halt and serious breaches are notified; safety reports are submitted.Dates, counts and safety data you can pull quickly and trust.
End of trialThe sponsor notifies the end of the trial in the portal.A defined last-visit and data-cleaning plan, so the date you notify is real.
ResultsSummary of results, layperson summary and, where required, the clinical study report are submitted. The summary is generally due within 12 months of the end of the trial, but confirm the deadline in Article 37 and the sponsor handbook.A locked, reproducible dataset and exports with a data dictionary.

Orientation only. Open the current regulation and the EMA documents before you plan dates.

Build the study the dossier describes, then test it

Draft the visits and forms from your protocol and test skip logic, edit checks and the audit trail in the free sandbox before you submit anything.

Test your study build free

Readiness

Data-system readiness: what to line up before and after submission

CTIS does not validate your EDC. It does, however, set expectations that your data system then has to meet, and inspectors compare the two. The EMA guideline on computerised systems and electronic data in clinical trials is the reference for what an inspector expects of the system, covering audit trails, access control, validation and archiving. Our EMA computerised systems guideline guide summarises it, and Annex 11 versus 21 CFR Part 11 compares the EU and US rules.

Readiness is easier when it is concrete. Decide where the data will be hosted and say so in your data protection documents. Capture can host in the EU (Frankfurt) or the USA (N. Virginia), chosen per study. Make sure the people who will access data are in the right roles. Agree who will build, test and release changes, and how you will show the approved version of every form. Then rehearse the end: an export with a data dictionary, an audit trail export and a plan for lock, covered in our database lock checklist.

What Capture provides, and what it does not

Capture provides 21 CFR Part 11-aligned controls: a field-level audit trail with timestamp, user, old value, new value and reason for change; role-based access; electronic signatures with re-authentication on countersignature; and a draft to approved form lifecycle where approved forms are locked for live use. It also exports a blank eCRF PDF with a cover page, form index and visit-by-form matrix that can support your documentation. Capture does not submit to CTIS for you and does not replace your regulatory team: the application, the dossier and the portal workflow stay with the sponsor.

Checklist

A pre-submission readiness checklist for the data side

Use this alongside, not instead of, the EMA sponsor handbook.

Protocol and eCRF are aligned

Build visits and forms from the draft protocol and review every field against it before submission.

Consent versions are controlled

One approved version per country and language, with a record of who consented to which version.

Hosting and data protection are documented

State the hosting region and the roles that can see identifiable data.

Audit trail and signatures are tested

Run a test record through entry, change, query and signature in the sandbox and export the trail.

Amendment route is ready

Know how a change to forms is requested, tested, approved and released, and who signs.

End-of-trial route is planned

Define last visit, cleaning, lock and the exports that feed the results summary.

In Capture

What you do in Capture while the dossier is in assessment

Assessment time is build and test time. Upload the protocol and let the AI study builder draft the visit schedule and forms, then review every item yourself, since nothing is saved without human review. Test edit checks, skip logic and e-signatures with sample data, and export the blank eCRF PDF for your files.

  • AI drafts visits and forms from the protocol, reviewed by you.
  • Free sandbox with sample data and every feature.
  • Blank eCRF PDF and audit trail export for documentation.
Read the CRF builder guide

Blank eCRF · no subject data

Visit by form matrix

FormSCRD1W2W4W8EOS
DemographicsX
Vital signsXXXXXX
LaboratoryXXX
ECGXX

3. Was the ECG performed?

☐ Yes☐ No

If No, complete question 4.

Protocol CAP-001 · v1.0Page 3 of 24

FAQ

Questions teams ask before they switch

Something not covered here? Ask us directly.

What is CTIS?

CTIS is the Clinical Trials Information System, the EU single-entry portal for submitting and managing clinical trial applications and information under Regulation (EU) No 536/2014. Sponsors and authorities use it throughout the lifecycle of a trial.

Does CTIS collect trial data from our EDC?

No. CTIS holds the dossier, decisions, notifications and public information. Participant-level data stays in your own data capture system, which must be consistent with what you submitted.

What is the difference between Part I and Part II?

In general terms Part I covers the scientific and safety content assessed jointly by the member states concerned, and Part II covers national aspects such as consent, recruitment and site suitability. Check the EMA sponsor handbook for the exact document lists.

Do old Directive trials need to be in CTIS?

Trials authorised under the old Directive that were foreseen to continue beyond 30 January 2025 had to be transitioned to CTIS. Check the current EMA guidance for your trial.

When are results due after the end of a trial?

A summary of results is generally due within 12 months of the end of the trial, with layperson summary and clinical study report requirements alongside. Confirm the deadline in the regulation and the sponsor handbook for your case.

Can Capture submit to CTIS?

No. The submission is made by the sponsor or its representative in the portal. Capture supports the data side: study build, audit trail, e-signatures, role-based access, EU hosting in Frankfurt and exports.

Is Capture 21 CFR Part 11 compliant?

Capture provides 21 CFR Part 11-aligned controls. Compliance is a shared responsibility with your own validated use, so keep your validation file and test your build in the sandbox first.

Is this legal advice?

No. Use it as orientation and check the current regulation, the EMA documents and your national authority before acting.

Get your data side ready while the dossier is assessed

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