EU MDR · Clinical investigation · MDCG 2021-8

Submitting a clinical investigation while EUDAMED waits.

With the EUDAMED clinical investigations module still delayed, MDCG 2021-8 is how sponsors apply to Competent Authorities. Here is what the six annexes contain and how to submit without a rejection.

EU MDR 2017/745MDCG 2021-8EUDAMED (Art. 73)Competent Authorities
MDCG 2021-8 clinical investigation application, Eclevar MedTech

European Champion

Platinum Award 2026

Eclevar MedTech & Milo Health · xShare × EUCROF Open Call

Led by authority

Submissions run by people who process them.

A rejected application costs weeks. Ours are prepared by clinical operations and regulatory specialists who know what each Competent Authority actually checks.

Pierre-Marie Boutanquoi

Pierre-Marie Boutanquoi

CMO & Head of Medical Writing · 15+ yrs

Clinical investigation plans, GSPR checklists and Competent Authority submissions under EU MDR.

in LinkedIn
Charline Petitdemange

Charline Petitdemange

Lead Clinical Project Manager

Study start-up and multi-country Competent Authority submissions across Europe.

EU MDR 2017/745MDCG 2021-8EUDAMEDMulti-country start-up

Awards, funding, accountability

Europe’s best-rated medical device CRO.

Platinum Award 2026

Platinum Award 2026

Top tier at the xShare × EUCROF Open Call, awarded to Eclevar MedTech and its Milo Health platform, presented at EUCROF 2026 in Amsterdam.

The announcement →

Co-funded by the European Union

Selected through the xShare Open Call for clinical research innovation, Horizon Europe.

xShare results →

Independently reported

Distinction confirmed by an independent third party, the CVBF, also an awardee of the xShare × EUCROF Open Call.

CVBF coverage →

The guidance

From a delayed system to a clean submission.

Under EU MDR 2017/745, sponsors must submit a clinical investigation application or notification to each participating Member State via EUDAMED (the electronic system referred to in Article 73). EUDAMED remains delayed, so MDCG 2021-8 provides the forms that bridge the gap.

01 / 06

Why MDCG 2021-8 exists

The MDCG created this guidance to support sponsors and Competent Authorities in the submission process in the absence of a functional EUDAMED. It gives everyone a common set of documents and forms to use until the electronic system is live.

02 / 06

What the guidance provides

MDCG 2021-8 sets out the documentation and forms required for clinical investigation applications and notifications under the MDR. The heart of it is six downloadable annexes; they are helpful to Competent Authorities and sponsors alike, though you should always confirm whether the relevant national authority requires its own official forms.

03 / 06

The six annexes

Together, the annexes form the backbone of any submission.

Annex 1

Application / notification form

The primary form, with all data fields based on the EUDAMED module under development.

Annex 2

Additional investigational devices

Duplicate of Section 3 for studies using more than one investigational device.

Annex 3

Additional comparator devices

Duplicate of Section 4 for multiple comparators: therapy, placebo, no treatment or a device.

Annex 4

Additional investigation sites

Duplicate of Section 5, completed for each additional national site and country.

Annex 5

Supporting-documents checklist

Mandatory and conditional documents required to support the submission.

Annex 6

GSPR & standards checklist

General Safety and Performance Requirements, standards and scientific-advice checklist.

04 / 06

Inside the application form (Annex 1)

The application/notification form is the cornerstone, and it previews what the EUDAMED clinical investigations module will require.

Key fields

  • Sponsor and legal-representative identification
  • Investigation type (pilot, pivotal, post-market) and submission type (initial, substantial modification, withdrawal)
  • Participating countries in EU/EEA/UK (Northern Ireland), Turkey and Switzerland, and outside the EU/EEA
  • Clinical investigation title and the clinical investigation plan (CIP)
  • Scientific rationale, design, objectives, population and duration

05 / 06

The checklists that stop rejections

Annex 5 and Annex 6 are where most submissions live or die. A complete supporting-documents checklist and an accurate GSPR and standards checklist are what let a Competent Authority validate quickly instead of returning the file. We build both to the exact expectation of the target authority.

06 / 06

Submitting across countries

Multi-country studies multiply the paperwork: additional site annexes per country, and national forms where the NCA requires them. Our clinical operations team manages the full submission across participating states, so first patient in is never delayed by a formatting mismatch. See how we handle national specifics for pre-CE submissions in Germany.

MDCG 2021-8 at a glance

The submission, structured.

6
annexes in the guidance
Art. 73
EUDAMED, still delayed
GSPR
checklist that validates the file
NCA
confirm national forms per country

Talk to a specialist

Submitting a clinical investigation under the MDR?

Book a free scoping call. We prepare the MDCG 2021-8 application, the GSPR checklist and the country-specific forms so your submission validates the first time.

Book a free scoping call

A missing annex is a month lost.

An expert read checks your MDCG 2021-8 application against every annex and the target authority’s national requirements, so the file is validated, not returned.

Book a free scoping call

Questions we hear first

MDCG 2021-8, answered.

What is MDCG 2021-8?
MDCG 2021-8 is guidance from the Medical Device Coordination Group on the documents and forms required for a clinical investigation application or notification under EU MDR 2017/745. It exists to support sponsors and Competent Authorities in the submission process while the EUDAMED electronic system referred to in Article 73 is still delayed.
What are the six annexes of MDCG 2021-8?
Annex 1 is the application/notification form; Annex 2 covers additional investigational devices; Annex 3 additional comparator devices; Annex 4 additional investigation sites; Annex 5 is the supporting-documents checklist; and Annex 6 is the GSPR and standards checklist. Together they form the foundation of a clinical investigation submission.
Do I have to use the MDCG 2021-8 forms?
The MDCG forms and templates may be used by sponsors and Competent Authorities, but you should always check with the relevant national Competent Authority (NCA), because some require their own official application forms. Confirming the format per country before submission avoids delays and rejections.
Which submissions does MDCG 2021-8 cover?
It covers initial applications and notifications, substantial modifications and withdrawals for clinical investigations under the MDR, across participating EU/EEA countries and, where relevant, the UK (Northern Ireland), Turkey and Switzerland. The application form itself previews what the EUDAMED clinical investigations module will require.

Reforming Clinical Evaluation of Medical Devices in Europe