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IVD Performance Evaluation, Statistics and Diagnostic Publications

Pubrica supports in vitro diagnostic manufacturers with performance evaluation documentation, statistical analysis and scientific publications. We prepare IVDR performance evaluation plans and reports, scientific validity reports, diagnostic accuracy studies reported under STARD and prediction model reports under TRIPOD+AI. Reports present predictive values at the claimed prevalence alongside sensitivity and specificity, and state the limits of retrospective model validation.

What we writeIVDR and STARD

Predictive values are reported with the prevalence they depend on.

Included in every evaluation
  • Current IVDR requirements
  • Predictive values reported in context
  • Your QMS and templates
  • Mutual NDA on request
  • You remain the manufacturer

Service Scope

IVD performance evaluation and diagnostic accuracy reporting

Sensitivity and specificity describe the test. Predictive values show what a result means for the patient, and they change with prevalence. We report both so performance data reflects the intended clinical setting.

Reporting

Accuracy in context

Sensitivity, specificity and the predictive values at the prevalence you are claiming for.

Audience

A notified body reviewer

Under IVDR, scientific validity, analytical performance and clinical performance are addressed separately.

Validation

Prospective evidence where needed

Models that perform well on retrospective data often do not hold prospectively, and we report this clearly.

Our Services

IVD documentation and publications we prepare

Available as individual documents or as a full file. We also work on evaluations that have previously been rejected.

Documents and applicable standards

Performance evaluation planPrepared to IVDR Annex XIII before the evaluation begins
Performance evaluation reportScientific validity, analytical and clinical performance, each addressed separately
Scientific validity reportEvidence for the association between the analyte and the clinical condition
Diagnostic accuracy manuscriptsReported to STARD, including the participant flow diagram
Prediction model reportingReported to TRIPOD+AI, including machine-learned models
Post-market performance follow-upPMPF plans designed to monitor the claims made in the report
Risk management fileISO 14971, including the benefit-risk assessment supporting the evaluation
Clinical performance study documentsProtocol and report under ISO 20916
Statistical analysisSample size, ROC analysis and confidence intervals
Health-economic evidenceEvidence for payers that the test changes clinical management

Who We Serve

Teams we work with at diagnostics companies

We support the following functions within IVD manufacturers.

Who we support

Regulatory affairsPerformance evaluations for notified body review
Clinical affairsPerformance studies and the evidence they have to produce
Data scienceModel development and reporting for regulatory review
Quality and complianceDocumentation prepared under your QMS for audit
Medical affairsPublications that support the clinical claim
Market accessEvidence that the test changes clinical management, not only that it is accurate

Our compliance and guideline standards

Guidelines and standards we work to

Each standard is applied at its current edition, with the date it was checked. Where a standard has changed recently, the deliverable records which version was used.

Applicable standards

EU IVDR 2017/746Annex XIII and the performance evaluation requirements
ISO 20916Clinical performance studies using specimens from human subjects
STARD 2015Reporting diagnostic accuracy studies
TRIPOD+AIPrediction model reporting, including machine-learned models
ISO 14971Risk management, applied to diagnostics
MDCG guidanceThe coordination group documents that interpret IVDR in practice
CLSI standardsAnalytical performance and method comparison
ISO 9001:2015The quality system the process itself runs under

Use of AI Tools

AI tools support search and formatting. They are not used to write your scientific content.

This policy applies to every service and every industry, regardless of deadline.

Our AI policy

Used forLiterature search expansion, de-duplication, reference formatting and consistency checks
Not used forDrafting content, interpreting results or generating text presented as your own
DisclosedEach handover states which tools were used and for what purpose
Your dataNever used to train AI models or shared with services that do

How it works

Our five-step process, starting with a free assessment

We review your materials before providing a quote.

One

Initial assessment

Two business days, at no cost. We set out what the work requires, who will lead it and the cost.

Two

Named team

We confirm who is assigned and their relevant experience before work starts.

Three

Outline approval

You approve the content and sources for each section before drafting begins.

Four

Draft and review

Independent review, quality control and reference verification, each signed off separately.

Five

Handover

The final deliverable with its working files under version control, revised within the agreed scope.

Throughout

One project lead

One project lead coordinates the work so all documents remain consistent.

Project Inputs

Send us your existing materials and we will identify any gaps.

Many projects start with incomplete material, so the initial assessment includes a review of what is available.

You send

Existing materials

Existing documents, your templates and the required completion date.

We send back

Written assessment

What is available, what is missing and the condition of existing material.

Then

Packages

A quote for the evaluation, with the named team and timeline, before you commit.

Our experts

Our diagnostics writing and statistics team

Writers are assigned by subject and industry, not by availability. They hold a master’s degree or doctorate in life sciences, medicine, pharmacy or a related discipline, with at least five years of experience in the field. Keeping up to date with the relevant guidance is part of their regular work.

Specialists involved

Subject matter expertsMatched to your scientific or clinical field
Information specialistsDocumented, reproducible literature searches
StatisticiansStudy design, statistical analysis and outputs
Sector specialistsFamiliar with the regulations that apply to your industry
Independent reviewersA second qualified reviewer who did not write the draft
Quality controlReference verification and consistency across a document set

Sample work

Example deliverables and methods

Published with client agreement and redacted where requested.

Benefits

Practical benefits for diagnostics programmes

The benefits clients mention most often.

What you get

Predictive values in contextReported at the prevalence you claim, so results reflect the intended setting
Clear IVDR structureScientific validity, analytical and clinical performance, each addressed separately
Transparent model reportingIncluding where retrospective performance may not hold in a prospective cohort
Unlimited revisions within the agreed scopeWithin the agreed scope, without a per-round charge
Your QMS, not oursWe work within your quality system
You remain the manufacturerNamed throughout; the file and its sign-off remain yours

Packages

Pricing based on evaluation scope

Page count does not reflect the work involved, so we do not price by length. The free initial assessment defines the work and gives you a quote you can budget for.

First

Initial assessment

Free, within two business days. A written assessment of the work required.

Then

A written scope

Deliverables, standards, named team and timeline, agreed before work starts.

Quoted

Per evaluation

One price for the agreed scope, with revisions included rather than charged per round.

Quality Assurance

Revisions within the agreed scope

If a deliverable does not meet the scope you approved, we revise it at no additional charge and repeat the independent review.

What is covered

Unlimited revisionsWithin the scope agreed, with no per-round charge
Independent re-reviewA second qualified reviewer checks the revised work, not the original author
Correct standards appliedIf the wrong guidance edition was applied, we correct it at no extra charge
Clear scopingIf the original scope was wrong, we tell you rather than issuing a change request

FAQs

Common questions about diagnostics work

They are different regulations with different document sets. MDR requires clinical evaluation. IVDR requires performance evaluation built from three strands: scientific validity, analytical performance and clinical performance. Treating one as the other is the most common structural error we see, and reviewers notice it quickly.

Usually not. Retrospective performance on curated data is limited evidence for prospective use, especially when the training and test sets share a source. TRIPOD+AI requires reporting of the factors that reveal this, and we include them in the report.

Either. A statistician can run the ROC analysis, sample size calculation and method comparison, or review your existing analysis and identify points a reviewer is likely to question.

Yes. A companion diagnostic must meet IVDR requirements and support the medicine’s labelling, so we recommend one project lead across both. The initial assessment will set this out.

Yes. Auditors assess your templates, so we work within them, supported by our ISO 9001:2015 certified process.

We are not a notified body and do not certify products. We do not run performance studies or operate post-market performance follow-up. We write the plans and reports; surveillance runs under your QMS. You remain the manufacturer throughout.

Related services

Related industries and services

If your project spans more than one area, the same team can support it.

Other industries and topics

All industriesAll twelve industries we support
Biologics and biosimilarsDocumentation for biologics and biosimilar programmes
GenericsDocumentation for generic medicine filings
Medical devicesTechnical file documentation for medical devices
Subject areasSupport organised by academic discipline
Therapy areasSupport organised by indication

Discuss your diagnostics or IVD project requirements

The initial assessment is free and takes two business days. You receive a written summary of the work required and who would lead it.

Get a free quote

Regulations

Check your project against this rule

  1. 1Your work
  2. 2Your details
  3. 3Send
What do you need?

Material you send is held under signed confidentiality, with access limited to the assigned team and encrypted transfer. It is not used to train anything and is not passed to third-party tools. Ask for the agreement before you send anything you would rather cover first.