Study Monitoring

Medical Devices – Biocompatibility

The biological evaluation (or biocompatibility test) of your medical device is a mandatory part of the conformity assessment.

Biological Evaluation of Medical Devices according to ISO 10993

Evaluations carried out to determine the biological risks of medical devices are defined in ISO 10993 and product-specific standards, whereas the selection of applicable tests is device-dependent. In the first half of 2021, the revised European EN ISO 10993-1:2020, based on ISO 10993-1:2018, was published as national EN ISO 10993-1:2021 standards. In light of this, several changes must be considered.

According to the introduction of the new standard, “it is not intended that this document provide a rigid set of test methods, including pass/fail criteria, as this might result in either an unnecessary constraint on the development and use of novel medical devices, or a false sense of security in the general use of medical device. … ISO 10993 series is intended for use by professionals, appropriately qualified by training and experience, who are able to interpret its requirements and judge the outcome of the evaluation for each medical device, taking into consideration all the factors relevant to the medical device, its intended use and the current knowledge of the medical device provided by review of the scientific literature and previous clinical experience.”

In line with Appendix B.2.2 (The biological evaluation plan) of ISO 10993-1:2018, risk management activities must be planned in advance. Since biological evaluation is a risk management activity, a biological evaluation plan is required. It is emphasized that simply planning to conduct testing against all of the aspects of biocompatibility identified in Annex A does not meet the requirements.

Biocompatibility Assessment Process – Trust our Expertise in Biological Evaluation

We assist with the categorisation of your medical devices and analyse physical as well as chemical information in detail, in order to evaluate further steps in a risk analysis following the current ISO 10993-1:2018. If there is no precise chemical information available, we will discuss the execution of chemical characterisations according to the current ISO 10993-18:2020 with you.

If you do not have in-house capacity, we arrange to have them carried out at laboratories that are best suited to your needs. We collaborate either with external contract partners or your laboratory during the design- test- and reporting phases.

Based on the results, SCC performs a risk assessment using toxicological literature and database data. In many cases, sufficient data is already available and no or just a limited number of biological tests are required.

In case further studies are required for the biological evaluation, we prepare the test plan together with the testing laboratory. We check all-round compliance with regulatory and scientific requirements and standards including the ISO 10993 (monitoring).

After completion of the studies, we prepare a final report as part of the conformity assessment procedure. In addition to the summary, discussion and evaluation of all results, the report also contains a detailed justification for waiving unnecessary tests.


  • Evaluation of physical and chemical information (considering ISO 10993-18)
  • Risk assessment in line with ISO 10993-1:2018
  • If required, preparation of study design together with the lab
  • If required, study monitoring of biological tests
  • Preparation of final report

Your Benefits

  • With good knowledge of the impact of various substances, we carefully select the tests to be performed. This strategy not only helps to save time and costs, but also avoid unnecessary animal testing.
  • As early as the development phase, we can draw important conclusions based on cost-effective pre-evaluations, which help you prevent aberrations.
  • We have been working with numerous national and international testing laboratories and know which ones can best meet your needs.
  • In many cases, risk analysis can be supported by computer simulations. Rely on the expertise of our regulatory science team, helping you to draw the precise conclusions you need for your risk assessment by applying commonly available data combined with suitable models.

Don’t hesitate to contact us directly if you would like to learn more about our services for the biological evaluation of your medical devices.