IVDR Transition · IVDD 98/79/EC → IVDR 2017/746

IVDR transition for legacy Class C and D diagnostics, built to pass first time.

Your legacy IVD file has to survive Notified Body review, and the Article 110 clock is running. Eclevar runs end-to-end IVDD-to-IVDR transitions for high-risk Class C and D in vitro diagnostics, Performance Evaluation Report to submission, with in-house teams and former Notified Body reviewers who know exactly what makes a dossier fail.

Class C & D legacy Annex XIII PER EURL batch verification PMPF Milo Studio
Analytical and clinical performance data review for a legacy IVD moving from IVDD to IVDR Former NB reviewers · IVDR native

An IVDR service built from the inside out, not adapted from MDR.

Your Performance Evaluation Report is written and challenged by people who assessed these dossiers at a Notified Body, on the MILO Studio platform that won the Platinum Award at the xShare & EUCROF 2026 Open Call.

Co-funded by the European Union

Horizon Europe · Grant Agreement No. 101136734 · Amsterdam, 2 Feb 2026

C & DHighest-risk legacy IVDs handled in full
Ex-NBFormer Notified Body reviewers on the core team
100%In-house, no subcontracted NB query management
PlatinumxShare EUCROF Award 2026
Social proof

Trusted by manufacturers bringing devices to the EU.

From Japanese and Indian sponsors entering the EU to European regenerative-medicine leaders, our teams carry files through Notified Body review. Read all client success stories.

TERUMO Meril NIHON KOHDEN VYGON Coloplast SHOFU ASAHI INTECC RegenLab TERUMO Meril NIHON KOHDEN VYGON Coloplast SHOFU ASAHI INTECC RegenLab
Definition

What is the IVDR transition?

The IVDR transition is the move of in vitro diagnostics from the old IVD Directive 98/79/EC to the In Vitro Diagnostic Regulation (EU) 2017/746, which introduced risk-based classes A to D, mandatory Notified Body conformity assessment for higher-risk devices, and a far more demanding clinical evidence standard.

Under the IVDD, most diagnostics reached the market by self-declaration. Under the IVDR, the majority of devices are up-classified and must now pass a Notified Body, with clinical evidence built as a structured Performance Evaluation Report under Annex XIII rather than a light literature file. This is the same evidence-first shift EU MDR brought to medical devices, applied to diagnostics.

The transition runs on staggered legal deadlines set by Article 110, as amended by Regulation (EU) 2024/1860. Legacy Class D devices must be IVDR-certified by 31 December 2027 and Class C by 31 December 2028, but only if each manufacturer met the class-specific gates: a formal Notified Body application, a signed written agreement four months later, and an Article 10(8) quality management system. Miss a gate and the transition benefit is lost entirely.

With Notified Body review running 18 to 24 months and capacity tight, starting late is the single biggest risk to market access. Eclevar delivers the transition as one connected service, from gap analysis to submission, feeding the IVD clinical research and the post-market performance follow-up that keep an IVDR certificate valid.

Dr Mark DaCosta, COO at Eclevar MedTech and former TÜV SÜD Notified Body reviewer
Dr Mark DaCosta COO · Former Notified Body reviewer Former reviewer at TÜV SÜD
Regulatory leadership

The reviewers who assessed the files now build them.

Eclevar's model brings the reviewer's perspective inside the CRO, closing the gap between what manufacturers submit and what assessors expect from a Class C or D dossier. Dr Mark DaCosta, COO and former TÜV SÜD clinical reviewer, leads a team that knows what makes a Performance Evaluation Report defensible, where Notified Body queries originate, and how to structure an IVDR file so it survives scrutiny the first time, from the first draft of the Annex XIII argument.

Ex NBFormer TÜV SÜD reviewers on the team
Annex XIIIPER built as a Notified Body argument
100%In-house clinical & regulatory delivery
Former NB reviewers IVDR Annex XIII ISO 13485 certified
LinkedIn
Compliant with IVDR (EU) 2017/746 Annex XIII ISO 20916 ISO 13485 21 CFR Part 11 GDPR
Why a specialist IVD CRO

MDR templates adapted to diagnostics versus an IVDR-native transition.

Generic CROs adapt EU MDR processes to IVDs. We built our IVDR service from the inside out, by the people who reviewed these dossiers at Notified Bodies.

Generic / MDR-adapted

MDR templates bent to fit an IVD.

  • MDR templates adapted to IVDmiss the Annex XIII specifics of a performance evaluation.
  • No former NB reviewerso the team guesses what will pass scrutiny.
  • EURL process unfamiliarEU reference laboratory sequencing for Class D not anticipated.
  • Generic EDCnot mapped to IVDR Annex XIII data fields.
  • Gates managed reactively,transition milestones tracked late, not by design.
Eclevar MedTech

IVDR-native, Annex XIII, from day one.

  • IVDR-native methodologybuilt on Annex XIII Parts A and B from the ground up.
  • Former TÜV SÜD reviewerswho know what fails before it is submitted.
  • EURL interface experience,Class D batch-verification sequences anticipated by design.
  • Milo EDCwith Annex XIII data dictionaries pre-built and inspection-ready.
  • Gate sequencing built in,application, written agreement and QMS milestones from day one.
Performance evaluation

The Annex XIII evidence chain, one team.

Performance evaluation under IVDR Annex XIII is not a literature review. It is a structured, three-part clinical argument, backed by PMPF and a submission-ready Technical Documentation package, that must hold under Notified Body scrutiny.

01

Gap analysis & IVDR readiness

Audit the existing dossier against IVDR Annex XIII and Notified Body expectations, delivering a written gap report and remediation roadmap sequenced to the Article 110 gates.

02

Scientific validity (SVR)

Establishes the association between the analyte and the clinical condition: a systematic literature review, GRADE-level appraisal and a documented state-of-the-art summary a Notified Body will accept.

03

Analytical performance (APS)

Demonstrates precision, accuracy, linearity, interference, carry-over and stability, run on Milo Studio EDC and, for Class D, defensible against EURL batch-verification.

04

Clinical performance (CPS)

Confirms the clinical claim in the intended population with prospective, retrospective or banked samples, design and site activation sequenced to meet the transition gate timeline.

05

PMPF & post-market surveillance

Ongoing performance monitoring after certification: a PMPF plan, evaluation report and vigilance integration, structured for NB surveillance expectations from day one.

06

Notified Body submission

The full Technical Documentation under Annexes II and III, NB query management and gate sequencing, backed by our ISO 13485 quality system.

Services

End-to-end IVDR clinical evidence.

One accountable team covers every stage of the legacy transition, so nothing is lost between a gap analysis, a performance study and a Notified Body submission.

01

Transition CRO: Class C & D

End-to-end transition for the highest-risk legacy in vitro diagnostics, from gap analysis to Notified Body certification, sequenced against the Article 110 gates as part of our IVD clinical research CRO.

02

Performance Evaluation Report

SVR, analytical and clinical performance and PMPF, written as one structured argument under Annex XIII Parts A and B, in the same discipline as our clinical evaluation reports for devices.

03

Clinical performance & data management

CPS protocol, site selection and activation, data capture on Milo EDC, biostatistics and the Clinical Performance Report.

04

PMPF & real world evidence

Post-Market Performance Follow-up plans, evaluation reports and vigilance links, extended with real world evidence for long-term IVDR surveillance.

05

EURL interface for Class D

EU reference laboratory batch-verification sequences anticipated by design, so the highest-risk Class D files are planned around EURL timing rather than surprised by it.

06

Regulatory strategy & QMS

Regulatory affairs and conformity strategy plus an Article 10(8) quality management system certified to ISO 13485, aligned to the transition gates.

Case study · Legacy Class D serology

A Class D serology dossier rebuilt for IVDR.

A manufacturer of a high-risk infectious-disease assay held a legacy Class D file built for the IVDD and unfit for IVDR review. Eclevar rebuilt the Performance Evaluation Report against Annex XIII Part A, then designed the analytical and clinical performance studies with EU reference laboratory batch-verification anticipated from day one, capturing every data point on Milo EDC.

The PMPF plan and vigilance link were structured so the Class D file would withstand Notified Body scrutiny, and the whole programme was sequenced against the application and written-agreement gates to protect the Article 110 transition benefit.

Outcome: a Notified Body-ready dossier with a documented gap analysis and remediation roadmap, instead of a legacy file heading for rejection. Figures illustrative of this study type, not specific client data.

Annex XIIIPER rebuilt Part A
EURL-readyBatch verification anticipated
Gate-awareSequenced to Article 110
Why Eclevar MedTech

What makes the difference.

NB

Notified Body intelligence

Former Notified Body reviewers from TÜV SÜD. We know what fails an IVDR assessment and build the file to avoid it.

IH

100% in-house delivery

Performance evaluation, clinical operations and data management. One point of accountability, no handoff fragmentation.

ML

Milo Studio EDC

Proprietary EDC with Annex XIII data dictionaries pre-built and inspection-ready for legacy transitions.

GT

Gate-aware sequencing

Application, written agreement and QMS milestones tracked from day one, so the Article 110 transition benefit is protected.

EU

Award-winning platform

Platinum Award winner, xShare & EUCROF 2026, recognised for clinical innovation and evidence planning.

QA

Audit-ready from day 1

ISO 13485 certified. Every dossier structured for Technical Documentation completeness and Notified Body review.

Global presence

Five offices, clinical performance across Europe.

A network of employed clinical and regulatory teams, not subcontractors, gives sponsors consistent quality and one accountable team across the EU, the UK and Japan corridors, with performance studies activated at European reference centres.

ParisHQ
LondonUKCA corridor
TokyoPMDA corridor
Pune, IndiaTech & data ops
FranceGermanyUnited KingdomItalySpainSwedenDenmarkJapanBrazilColombia
Official content

Our content, signed Eclevar.

Whitepapers, client testimonials and publications produced by our teams and partners (BSI, TÜV SÜD, RegenLab).

Whitepaper by BSI and Eclevar on the EU MDR
Whitepaper · BSI × Eclevar

A BSI and Eclevar whitepaper on the EU MDR.

Written with Notified Body BSI: a practical reading of the clinical evidence expectations under EU MDR 2017/745, and a useful lens on the evidence-first direction the IVDR now brings to diagnostics.

PMCF Studies · Regenerative Medicine · 5 EU Countries

A client's live testimonial on Eclevar's capability to run complex trials.

Eclevar manages RegenLab's PMCF programme on chronic wound devices. This is a randomized study of 160 patients across 14 sites in 5 EU countries, covering both diabetic foot ulcer (DFU) and venous leg ulcer (VLU) indications. The partnership combines Eclevar's ISO 14155 clinical expertise with the Milo Studio platform to deliver post-market clinical follow-up evidence that supports both Notified Body scrutiny and reimbursement endpoints, from protocol design through to final study report.

« Eclevar, with its tailor-made approach and advanced Milo Studio platform, represents a major strategic asset. »
Antoine Turzi, CEO, RegenLab
160patients · 14 sites
5EU countries
RegenLab video testimonial on the PMCF programme managed by Eclevar
FAQ

Questions sponsors ask about the IVDR transition.

What is the IVDR transition deadline for Class C and Class D devices?

Under Article 110 of the IVDR as amended by Regulation (EU) 2024/1860, legacy Class D IVDs must be IVDR-certified by 31 December 2027 and Class C by 31 December 2028, provided the manufacturer met the class-specific milestones: a formal Notified Body application (Class D by 26 May 2025, Class C by 26 May 2026) and a signed written agreement four months later, with an Article 10(8) QMS in place by 26 May 2025. Missing a gate removes the transition benefit.

What does a Performance Evaluation Report (PER) require under IVDR?

A PER under IVDR Annex XIII consolidates scientific validity, analytical performance and clinical performance evidence, supported by a Performance Evaluation Plan (PEP) and maintained through Post-Market Performance Follow-up (PMPF). It is a structured three-part clinical argument, not a literature review, and must be written the way a Notified Body reviewer actually evaluates it.

What is the difference between Class C and Class D under IVDR?

Class D covers the highest-risk IVDs, those used for blood screening and confirmatory testing for life-threatening infectious diseases such as HIV, HCV, HBV and HTLV, and certain rare diseases. They require mandatory EU reference laboratory (EURL) batch verification in addition to Notified Body certification. Class C covers high-risk devices such as companion diagnostics, oncology markers, cardiac biomarkers and sepsis assays, requiring a full PER and Notified Body conformity assessment but not EURL batch verification.

Can Eclevar handle the full Notified Body submission?

Yes. We deliver the full Technical Documentation package aligned to IVDR Annexes II and III, manage Notified Body queries, and have former Notified Body reviewers on the core team. We also manage the gate milestones, application and written agreement, to protect the transition benefit throughout the programme.

Can banked or residual samples be used for the clinical performance study?

Yes, when properly documented. The sample chain of custody, biobank consent and pseudonymisation must comply with applicable national law and GDPR. We design clinical performance study protocols that maximise the use of banked samples to keep timelines realistic against the transition gate, while ensuring the dataset will withstand Notified Body scrutiny.

Why use a specialist IVD CRO for the IVDR transition?

Generic CROs adapt EU MDR templates to diagnostics and miss the Annex XIII specifics: scientific validity, analytical and clinical performance, EURL sequencing for Class D and PMPF as a Notified Body argument. A specialist IVD clinical research CRO with former Notified Body reviewers builds the Performance Evaluation Report the way assessors read it, from day one.

Guaranteed response within 24 hours

Find out if your file makes the gate.

Spend 30 minutes with a former Notified Body reviewer. Leave the call with a costed transition plan and a clear answer on whether your Class C or D file makes the deadline.

Book a consultation

Reforming Clinical Evaluation of Medical Devices in Europe