AimTo summarize the evidence on clinical effectiveness and safety of wearable cardioverter defibrillator (WCD) therapy for primary and secondary prevention of sudden cardiac arrest in patients at risk.MethodsWe performed a systematic literature search in databases including MEDLINE via OVID, Embase, the Cochrane Library, and CRD (DARE, NHS-EED, HTA). The evidence obtained was summarized according to GRADE methodology. A health technology assessment (HTA) was conducted using the HTA Core Model® for rapid relative effectiveness assessment. Primary outcomes for the clinical effectiveness domain were all-cause and disease-specific mortality. Outcomes for the safety domain were adverse events (AEs) and serious adverse events (SAEs). A focus group with cardiac disease patients was conducted to evaluate ethical, organizational, patient, social, and legal aspects of the WCD use.ResultsNo randomized- or non-randomized controlled trials were identified. Non-comparative studies (n=5) reported AEs including skin rash/itching (6%), false alarms (14%), and palpitations/light-headedness/fainting (9%) and discontinuation due to comfort/lifestyle issues (16–22%), and SAEs including inappropriate shocks (0–2%), unsuccessful shocks (0–0.7%), and death (0–0.3%). The focus group results reported that experiencing a sense of security is crucial to patients and that the WCD is not considered an option for weeks or even months due to expected restrictions in living a “normal” life.ConclusionThe WCD appears to be relatively safe for short-to-medium term, but the quality of existing evidence is very low. AEs and SAEs need to be more appropriately reported in order to further evaluate the safety of the device. High-quality comparative evidence and well-described disease groups are required to assess the effectiveness of the WCD and to determine which patient groups may benefit most from the intervention.

Summary The European Network for Health Technology Assessment (EUnetHTA) was founded to support efficient production and use of health technology assessments (HTAs) across Europe by reducing redundancies through collaboration. To facilitate collaboration, a range of practical tools, methods and process definitions were developed. The article describes when and how these tools and methods are used along the HTA process with specific focus on “other technologies”, that is medical devices and non-pharmaceutical procedures. EUnetHTA was able to deliver tangible achievements complying with its goals. The practical tools and the developed methods formed a basis for close collaboration among over 70 agencies at a European level. The activities of EUnetHTA laid a strong foundation for sustainable cooperation. In the long run, jointly produced assessments could realise economies of scale with improved quality, consistency and transparency for the health systems in Europe.

Objectives The European Network for Health Technology Assessment (EUnetHTA) was established in 2006 and comprises over eighty organizations from thirty European countries. In its fifth project phase (Joint Action 3), EUnetHTA set up a quality management system (QMS) to improve the efficiency and standardization of joint work. This article presents EUnetHTA's new QMS and outlines experiences and challenges during its implementation. Methods Several working groups defined processes and methods to support assessment teams in creating high-quality assessment reports. Existing guidelines, templates, and tools were refined and missing parts were newly created and integrated into the new QMS framework. EUnetHTA has contributed to Health Technology Assessment (HTA) capacity building through training and knowledge sharing. Continuous evaluation helped to identify gaps and shortcomings in processes and structures. Results Based on a common quality management concept and defined development and revision procedures, twenty-seven partner organizations jointly developed and maintained around forty standard operating procedures and other components of the QMS. All outputs were incorporated into a web-based platform, the EUnetHTA Companion Guide, which was launched in May 2018. Concerted efforts of working groups were required to ensure consistency and avoid duplication. Conclusions With the establishment of a QMS for jointly produced assessment reports, EUnetHTA has taken a significant step toward a sustainable model for scientific and technical collaboration within European HTA. However, the definition of processes and methods meeting the numerous requirements of healthcare systems across Europe remains an ongoing and challenging task.

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Patient involvement in the process of producing health technology assessments has become increasingly important. In the European Network for Health Technology Assessment (EUnetHTA), several approaches to patient involvement were explored. The outcome was a document on “Patient Input in Relative Effectiveness Assessments” that is available for access and was published in 2019. The aim of this article is to analyze the experience gained by EUnetHTA in patient involvement for EUnetHTA assessment production, describe and quantify the approaches used, and outline the challenges and avenues for the improvement of current processes. Patients were involved in twenty-three of thirty-six pharmaceutical and other technology EUnetHTA assessments from June 2016 until the end of November 2019. Approaches to patient involvement included using a patient input template, one-on-one conversations, group conversations, scoping meeting with patients, and other approaches. Although it is recognized that patient involvement is important to understand the needs of the target patient population, challenges remain with timely patient involvement. Additionally, further efforts are needed to guide assessment teams on how to implement and enhance the visibility of patient input in assessments.