• Petra Schnell-Inderst, Julia Mayer, Jörg Lauterberg, Theresa Hunger, Marjan Arvandi, Annette Conrads-Frank, Anna Nachtnebel, Claudia Wild, and Uwe Siebert.
• Department of Public Health and Technology Assessment, UMIT - University for Health Sciences, Medical Informatics and Technology, Hall i. T., Austria. Electronic address: petra.schnell-inderst@umit.at.
• Z Evid Fortbild Qual Gesundhwes. 2015 Jan 1; 109 (4-5): 309-18.

BackgroundWith the growing use and importance of health technology assessment (HTA) in decision making during recent years, health technology assessors, decision makers and stakeholders are confronted with methodological challenges due to specific characteristics of health technologies (e. g., pharmaceuticals, diagnostic tests, screening programs), their developmental environment, and their regulation process. Being aware of the necessity to use HTA as a policy instrument for sustainable health care systems in a regulatory environment of decentralized Conformité Européenne (CE) marking, the European Union (EU) is increasingly supporting the development of methods for the assessment of medical devices (MD) on different levels: within the scope of European research projects and within joint assessment activities of the member states of the European network for Health Technology Assessment (EUnetHTA).ObjectiveFirst, this article describes three projects: MedtecHTA-Methods for Health Technology Assessment of Medical Devices, a European Perspective Work Package 3 (WP3), Comparative Effectiveness of Medical Devices led by the University for Health Sciences, Medical Informatics and Technology (UMIT). Second, we discuss the experiences of the Ludwig Boltzmann Institute Health Technology Assessment (LBI HTA) with the joint production of rapid assessments of medical devices by several European HTA agencies within EUnetHTA. Third, a brief outline is given of the framework of joint methodological guideline elaboration by the EUnetHTA partner organizations because a guideline for therapeutic MD is also being developed here.MethodsWe will describe aims, methods and some preliminary results of MedtecHTA and EUnetHTA Joint Action 2 Work Package 5 Strand B (WP5B) applying the HTA Core Model for Rapid Assessment for national adaptation and reporting, and give an overview of the development process of methodological guidelines within WP 7 of EUnetHTA Joint Action 2.ResultsBased on a literature review in MedtecHTA WP3 incremental development, context dependency and the physical mode of action of MD were identified as those characteristics making therapeutic MD different from drugs with regard to evaluation methods. In addition, regulation does not stipulate clinical trials. These characteristics were also identified as challenges for the production of joint assessments of MD within the HTA network EUnetHTA. Furthermore, adequate timing of assessment production, the variety of involved manufacturers, the non-transparent regulation process of MD in Europe and the often poor evidence base pose a challenge to EUnetHTA assessors. As a consequence, processes and methods for the joint production of rapid assessments must be continuously adapted and improved.DiscussionResearch on HTA methods for the assessment of MD tries to provide tools to deal with rapidly developing devices during evidence generation, dependence of clinical effectiveness of MD on user experience and context factors. There are also tools to integrate evidence from different sources adjusting for different levels of validity, but these methods are not established and need high epidemiological and statistical expertise. A framework for deciding whether additional evidence is needed to reduce uncertainty regarding safety, clinical effectiveness and cost-effectiveness will be adapted to MD. The whole process of evidence generation before and after market access has to be considered to provide an environment for conclusive HTA recommendations informing health care decision making. In Joint Action 2, EUnetHTA develops transparent processes for the early dialogue with stakeholders and fosters dissemination of appropriate HTA methods. In the case of MD, there are special accumulated needs for such efforts.Copyright © 2015. Published by Elsevier GmbH.

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