Technical Documentation
Review product descriptions, design information, specifications, verification and validation, and related materials as the basis for preparing the Japanese application form and STED.
EU MDR Technical Documentation, GSPR Checklists, Clinical Evaluation Reports (CERs), risk management documentation, test reports, and similar materials may also be useful when preparing a medical device approval or certification application in Japan.
However, having obtained CE marking does not in itself mean that the product complies with Japanese regulatory requirements.
The relationship between existing EU documentation and Japanese requirements should be mapped, and any gaps should be identified based on the product scope to be submitted in Japan.
First, define the intended use, models, specifications, accessories, and manufacturing sites that will be included in the Japanese application.
Then review how each document prepared for the EU supports the Japanese application form, STED, Essential Principles, clinical evaluation, labeling, and other application elements.
The EU and Japan differ in areas such as:
Even when the same test report is used, it is necessary to explain why the results can be applied to the product being submitted in Japan.
Review product descriptions, design information, specifications, verification and validation, and related materials as the basis for preparing the Japanese application form and STED.
Review applicable requirements, standards, and supporting documentation and map them to the Japanese Essential Principles conformity checklist.
Review the relationship between the report and the intended use, target patients, comparator, literature, and clinical data relevant to the Japanese application.
Review hazards, risk control measures, residual risks, and consistency with Japanese test documentation, labeling, and precautions for use.
Confirm the test standards, specimens, worst-case conditions, and acceptance criteria, and assess whether the results can be applied to the product being submitted in Japan.
Organize statutory labeling, package inserts, Instructions for Use, and related materials according to the intended use submitted in Japan and Japanese labeling requirements.
Do not rely on the EU product name or class. Compare the product characteristics with the definition of the applicable Japanese generic name.
Confirm the Japanese class and applicable certification standards and determine whether the product requires a marketing notification, certification, or approval.
For approval applications, organize the application category—new, improved, or generic—and the comparison strategy against approved products.
Compare the EU Intended Purpose with the intended use, target patients, and product specifications that will be submitted in Japan.
Confirm the applicable scope and versions of JIS, ISO, IEC, notifications, and other standards referenced in the Japanese application compared with those used in the EU.
Confirm consistency between the manufacturing sites and processes described in the EU documentation and the Japanese application, registrations, and QMS documentation.
Confirm the intended use, target patients, models, accessories, specifications, and manufacturing sites.
Confirm the versions of the Technical Documentation, GSPR, CER, risk management documentation, test reports, labeling, and other relevant documents.
Organize which documents will support the Japanese application form, STED, Essential Principles, clinical evaluation, and other application elements.
Review differences in intended use, product scope, standards, comparators, test specimens, manufacturing processes, and other relevant items.
Identify Japan-specific requirements and areas that cannot be adequately explained using the existing documentation alone.
Confirm that terminology, versions, and conclusions are consistent across the application form, STED, test data, clinical evaluation, QMS documentation, labeling, and related materials.
Related guides: Medical Device Registration & Market Entry in Japan | Preparing a Medical Device STED in Japan
A foreign manufacturer does not normally need to recreate every technical document from the beginning when preparing a medical device application for Japan. Existing EU MDR documentation can often serve as source evidence, but each document should be reviewed against the Japanese product scope, regulatory pathway and submission requirements.
The EU MDR technical documentation can provide useful source information on the device description, intended purpose, design, manufacturing information, specifications and verification and validation activities.
For Japan, however, the information needs to be reorganized to match the Japanese application form, STED and supporting documentation. Differences in intended use, model configuration, accessories, specifications or manufacturing sites should be identified before the Japanese submission package is prepared.
An EU MDR General Safety and Performance Requirements (GSPR) checklist can help identify the standards and evidence already used to demonstrate conformity in Europe.
It does not replace the Japanese Essential Principles conformity assessment. The Japanese Essential Principles should be assessed separately, and the supporting standards, test reports and risk controls should be mapped to the applicable Japanese requirements.
A Clinical Evaluation Report (CER), clinical literature, PMCF information and other clinical evidence prepared for Europe may be useful when evaluating the clinical evidence available for Japan.
Their usability depends on whether the Japanese intended use, patient population, clinical setting, device configuration and claims are sufficiently aligned with the evidence. Additional analysis, literature review or clinical data may be required depending on the product and application category.
Risk management documentation prepared under ISO 14971 can provide an important basis for the Japanese submission.
The risk analysis should nevertheless be reviewed against the product configuration, intended use, labeling and risk-control measures proposed for Japan. Changes made after the original EU assessment should also be reflected.
Existing performance, biocompatibility, electrical safety, EMC, sterilization, packaging, shelf-life, software, cybersecurity and usability reports may be usable for Japan.
Before relying on them, confirm that the tested device represents the Japanese application product and that the test method, standard edition, acceptance criteria and test conditions remain appropriate.
For a detailed overview, see:
EU labels and instructions for use can be useful source documents, but they cannot simply be transferred to the Japanese market without review.
The Japanese labeling and package insert must be prepared in accordance with the Japanese approval, certification or notification details and the applicable Japanese labeling requirements.
Existing ISO 13485 and EU MDR quality-system documentation may support preparation for Japan.
However, the manufacturer should separately confirm the scope of the Japanese QMS requirements, the relevant manufacturing sites and the documents required for the applicable QMS conformity inspection.
One of the most important steps for a foreign manufacturer is to review the existing technical documentation before commissioning new testing for Japan.
A practical gap assessment can follow this sequence:
1. Confirm the exact device, models, accessories and configurations to be marketed in Japan.
2. Confirm the Japanese generic name, JMDN code, classification and regulatory pathway.
3. Compare the Japanese intended use and specifications with the EU-approved device.
4. Map the Japanese Essential Principles to the available standards and evidence.
5. Inventory existing verification and validation reports and confirm the applicable standard editions.
6. Confirm whether the tested samples represent the final Japanese product.
7. Review available clinical evidence and identify any unresolved clinical questions.
8. Confirm the MAH or DMAH structure, foreign manufacturer registration and QMS scope.
9. Identify issues that may require PMDA consultation.
10. Only after these steps, determine which additional tests or documents are actually necessary.
This approach helps avoid repeating tests that can be supported by existing evidence while identifying Japan-specific gaps before they affect the submission schedule.
Before the Japan project begins, foreign manufacturers should collect the latest versions of the documents that may be relevant to the Japanese application.
Typical documents include:
The purpose of collecting these documents is not to submit the complete EU file unchanged. It is to determine which evidence can support the Japanese application, which information needs to be reformatted or supplemented, and which genuine evidence gaps remain.
For the EU MDR framework and Japan's medical device approval requirements, refer to the following primary sources.
We review the existing EU documentation and identify what can be used as-is in Japan, what requires additional explanation, and what additional documentation should be prepared.
Contact us about a Japanese medical device application