When is a clinical investigation required under the EU MDR?
The EU MDR requires clinical investigations where the available clinical data are not sufficient to demonstrate conformity with the relevant general safety and performance requirements. In practice this usually applies to implantable and class III devices under Article 61(4), and to any device where equivalence cannot be adequately demonstrated, where the technology or intended purpose is novel, or where the existing data do not represent the intended population or conditions of use. The decision is specific to the device, the claims and the existing evidence, and is taken together with the clinical evaluation plan.
What is the difference between a clinical investigation and a PMCF study?
A clinical investigation generates clinical data for a device that is under investigation, most often before conformity assessment or before an extension of the intended purpose. A post-market clinical follow-up study generates data for a device already placed on the market under its CE-marked intended purpose, in order to confirm safety and performance, address residual risks and answer questions raised in the clinical evaluation. A PMCF activity can itself take the form of a clinical investigation, so what decides the requirements is the regulatory pathway and the evidence question, not the label.
Can Eclevar manage a complete multicountry investigation?
Yes. Eclevar delivers complete clinical investigations: strategy, protocol and statistical design, site contracting and activation, monitoring, data management, biometrics, safety oversight and final reporting. Regulatory and ethics submissions are prepared and filed in-house rather than subcontracted, in France, the United Kingdom, Germany, Italy, Spain and Denmark.
How are countries and sites selected?
Country selection follows the regulatory pathway, the clinical pathway and standard of care, comparator availability, reimbursement context and realistic recruitment capacity. Site selection follows documented feasibility: eligible patient flow, competing studies, investigator and device experience, research infrastructure, imaging and laboratory capability, data entry capacity and submission readiness. Sites are recommended on assessed delivery capacity, with a reserve site strategy defined at the same time.
What information is needed before a clinical-investigation budget can be prepared?
As a minimum: the device and its development stage, the intended purpose and target population, the existing evidence and the identified gap, the decision the evidence must support, the proposed claims, the comparator, the candidate endpoints and follow-up duration, the countries under consideration and any imaging or central assessment requirements. Where these are not yet defined, a scoping workshop reaches a reliable proposal faster than an exchange of assumptions.
How long does study start-up take?
Start-up duration depends on the countries selected, the regulatory route, the completeness of the technical and clinical documentation, contracting complexity and site readiness, so a single figure would be misleading. Eclevar builds the start-up plan country by country and site by site, states the assumptions behind each milestone, and tracks activation against documented readiness criteria, not contract signature.
What affects the cost of a medical-device clinical investigation?
The principal cost drivers are the number of participants, sites and countries with their regulatory routes, follow-up duration and visit burden, the monitoring model and source data verification intensity, imaging and central assessment, endpoint adjudication, the comparator, device logistics and the scope of statistical and medical writing deliverables. Design decisions taken early, particularly on endpoints and follow-up, usually influence cost more than unit rates.
What is included in clinical monitoring?
A monitoring strategy defining central, remote and on-site activity, source data review and verification proportionate to data criticality, informed consent review, protocol compliance oversight, safety and device deficiency review, recruitment and retention tracking, data quality indicators, investigator engagement, issue escalation and corrective actions, essential document and trial master file oversight, and close-out readiness.