Development of the Clinical Trials Information System (2024)

Updated on 18 June 2024:
'CTIS transparency rules' section

At the same time, EMA launcheda searchable publicwebsite enablinganybody to view information on clinical trials in the EU and EEA contained in the CTIS database.

CTISserves to implement EU pharmaceutical law set out in the Clinical Trials Regulation (Regulation (EU) No 536/2014).

A risk mitigation plan is available to help CTIS userscarry out regular activities within the system in different risk scenarios.

EMA monitors its implementationto ensure:

  • early identification, classification and assessment of risks;
  • coordinated, rapid and effective response;
  • user compliance with the Clinical Trials Regulation.

The Agency published the CTIS risk mitigation plan in February 2023. For its set up, EMA worked togetherwith Members States and the European Commission.

Clinical Trials Information System - Risk mitigation plan

Reference Number: EMA/956806/2022

English (EN) (432.3 KB - PDF)

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For more information:

CTIS transparency rules

Revisedtransparency rulesapply as of 18 June 2024 for publishinginformation on clinical trials submitted through CTIS.

The revised rules enable easier accessto clinical trial information and ensure a balance between transparencyand protection of commercially confidential information.

These changesbenefitpatients,healthcare professionals and clinical trial sponsors.

Revised CTIS Transparency Rules

Reference Number: EMA/263067/2023

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EMA also launched a new version of the CTIS public portal on 18 June 2024.

EMA's Management Board adopted the revised rules in October 2023.

User guide for revised CTIS transparency rules

A quick user guide provides a summary of the revised CTIS transparency rules:

  • ACT EU - User guide: Revised CTIS transparency rules, interim period and historical trials

For further details on disclosure rules, protection of personal data and commercially confidential information, see the Accelerating Clinical Trials in the EU (ACT EU) website:

  • ACT EU - Guidance on how to approach the protection of personal data and commercially confidential information while using CTIS
  • ACT EU - Guidance on how to approach the protection of personal data and commercially confidential information while using CTIS: Annex I
  • ACT EU - Questions and answers on the protection of commercially confidential information and personal data while using CTIS

The revised rules were available for public consultationbetween May andJune 2023.

For more information, see:

  • Review of transparency rules for the EU Clinical Trials Information System (CTIS)(03/05/2023)
  • Accelerating Clinical Trials in the EU (ACT EU): Implementation of the Clinical Trials Regulation
  • Clinical Trials Information System: training and support: Protection of personal data and commercially confidential information
  • CTIS public portal: search for clinical trials

Revision of section 6 of the 'Functional specifications for the European Union (EU) portal and EU database to be audited - EMA/42176/2014' setting out features to support making information public

Reference Number: EMA/129363/2015

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Appendix, on disclosure rules, to the functional specifications for the EU portal and EU database to be audited

Reference Number: EMA/228383/2015Summary:

Annual report 2014

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Progress updates

EMA's CTIS newsflashcontains short updates on system usage, key facts and figures, hints to help users with specific features and links to reference materials, following the launch of CTIS on 31 January 2022.

Toreceive the newsletterdirectly by email, please contactct.newslettersubscriptions@ema.europa.eu.

The ninemost recentissues are available below. For previous issues, see:

  • Newsletters

CTIS newsflash - 31 May 2024

Reference Number: EMA/240597/2024

English (EN) (277.61 KB - PDF)

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CTIS newsflash - 17 May 2024

Reference Number: EMA/162262/2024

English (EN) (478.28 KB - PDF)

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CTIS newsflash – 3 May 2024

Reference Number: EMA/174397/2024

English (EN) (473.1 KB - PDF)

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CTIS newsflash - 22 April 2024

Reference Number: EMA/147229/2024

English (EN) (288.05 KB - PDF)

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CTIS newsflash - 5 April 2024

Reference Number: EMA/128274/2024

English (EN) (288.21 KB - PDF)

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CTIS newsflash - 22 March 2024

Reference Number: EMA/106948/2024

English (EN) (283.88 KB - PDF)

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CTIS newsflash - 8 March 2024

Reference Number: EMA/84206/2024

English (EN) (280 KB - PDF)

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CTIS newsflash - 23 february 2024

Reference Number: EMA/62843/2024

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During the development of CTIS, EMA providedregular progress updates to its Management Board. For further details, seeHighlights of EMAManagement Board meetings.

Development timeline

EMA originally published the CTISfunctional specificationsin December 2014, following a public consultation, to be formally audited in line with the Clinical Trials Regulation.

An initial go-live date was published in December 2015 but this date was postponed due to technical difficulties with the development of the IT system.

In March 2019, the IT supplier submitteda revised project plan andEMA revised the CTIS project methodologyand delivery plan.

From June 2019, the development of CTIS followed an agile framework and iterative delivery model, with functionalities delivered in short development cycles and an improved stakeholder engagement model.

In April 2021, EMA's Management Board confirmed that the system met the agreed requirements following an independent audit of CTIS.

On 31 July 2021, the European Commission confirmed 31 January 2022 as the date of entry into application of theClinical Trials Regulationand the go-live of CTIS, by publishing a notice in the Official Journal of the European Union.

EMA worked towardsgo-liveon 31 January 2022by focusing on the following areas:

  • Findings of the independentsystem audit
  • Improving usability, quality and stability
  • Knowledge transfer to prepare users and theirorganisations

More details are available in the documents below.

    European Union Clinical Trials Information System CTIS: Go-live planning - Summary of key areas in preparation of the operation of CTIS

    Reference Number: EMA/MB/473854/2021

    English (EN) (315.51 KB - PDF)

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    Delivery time frame for the EU portal and EU database

    Reference Number: EMA/760345/2015

    English (EN) (164.99 KB - PDF)

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    Functional specifications for the European Union (EU) portal and EU database to be audited

    Reference Number: EMA/42176/2014 Rev. 1

    English (EN) (437.46 KB - PDF)

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    Stakeholder engagement and consultation

    EMA continues to regularly engagewith external stakeholders on CTIS developmentand change management matters, before and after go-live, under the stakeholder engagement model in place since 2019.

    Nominated experts representingnational competent authorities, ethics committees, clinical trial sponsors, healthcare professionals, patients and the general public were able to test, review, select and verify CTIS functionalities.

    Duringdevelopment, EMA consulted EU Member States, the European Commission and stakeholders representingclinical-trial sponsors(including micro, small and medium-sized enterprises (SMEs) and academic organisations), healthcare professionals and patient groups on its proposals, including on:

    • the draft functional specifications in2014;
    • implementing the transparency rules in 2015.

    More background information is available in the documents below.

    Draft functional specifications for the European Union portal and European Union database to be audited

    Consultation dates: to Draft: consultation closedReference Number: EMA/42176/2014 corrSummary:

    The Clinical Trials Regulation has opened a new era for the conduct of clinical trials in the European Union (EU). One of the main features of the Regulation is the creation of the EU portal and the EU database for clinical trials, which are intended to simplify and harmonise the submission, assessment and reporting of clinical trials. This Regulation gives the Agency the responsibility to prepare, in collaboration with the Member States and the European Commission, the functional specifications for these systems. The application of the Regulation will take place after an audit of the EU portal and the EU database has shown these systems are fully functional. This audit will be based on the functional specifications outlined in this document.

    English (EN) (439.5 KB - PDF)

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    Overview of comments received on 'Draft functional specifications for the EU portal and EU database to be audited'

    Reference Number: EMA/659146/2014

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    Draft proposal for an addendum, on transparency, to the 'functional specifications for the European Union (EU) portal and EU database to be audited'

    Consultation dates: to Draft: consultation closedReference Number: EMA/641479/2014Summary:

    This consultation document sets out proposals and options on the application of exceptions in relation to the transparency provisions of the European Clinical Trial Regulation. Once finalised, this addendum will complement the functional specifications for the EU portal and database to be audited, which were drawn up by the Agency and endorsed by its Management Board in December 2014.

    English (EN) (434.7 KB - PDF)

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    Draft appendices to draft proposal for an addendum, on transparency, to the 'Functional specifications for the European Union portal and EU database to be audited'

    Reference Number: EMA/768628/2014

    English (EN) (583.69 KB - PDF)

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    Overview of comments on EMA/641479/2014 Draft proposal for an addendum, on transparency, to the 'Functional specifications for the EU portal and EU database to be audited - EMA/42176/2014' - Specific comments received on...

    Reference Number: EMA/739152/2015

    English (EN) (612.32 KB - PDF)

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    Overview of comments on EMA/641479/2014 Draft proposal for an addendum, on transparency, to the 'Functional specifications for the EU portal and EU database to be audited - EMA/42176/2014' - Specific comments received on...

    Reference Number: EMA/739151/2015

    English (EN) (833.46 KB - PDF)

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    Overview of comments on EMA/641479/2014 Draft proposal for an addendum, on transparency, to the 'Functional specifications for the EU portal and EU database to be audited - EMA/42176/2014' - Specific comments received on...

    Reference Number: EMA/739150/2015

    English (EN) (513.76 KB - PDF)

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    Questions and answers on public consultation on implementation of transparency requirements of the European Clinical Trial Regulation

    Reference Number: EMA/36398/2015

    English (EN) (163.46 KB - PDF)

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    The European Commission publishedguidance documents for public consultation in 2016.For more information, see:

    • Risk proportionate approaches in clinical trials
    • Summary of Clinical Trial Results for laypersons
    • Definition of investigational medicinal products and use of auxiliary medicinal products
    • Ethical considerations for clinical trials on medicinal products conducted with minors
    • European Commission: Clinical trials - Major developments

    External links

    Related content

    • Clinical Trials Information System: training and support
    • Clinical Trials Information System (CTIS): online modular training programme
    • Clinical Trials Regulation
    • Clinical Trials Information System
    • Clinical trials in human medicines
    • Data submission on investigational medicines: guidance for clinical trial sponsors
    Development of the Clinical Trials Information System (2024)
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