This paper summarizes the outcome of the Organ-on-Chip (OoC) ORCHID Strategy workshop (Leiden, the Netherlands, 17 January 2019) intended to establish a European OoC roadmap through expert discussions, conclusions and recommendations. The workshop identified six specific building blocks for the OoC roadmap: (1) application, (2) specification, (3) qualification, (4) standardization, (5) production and upscaling, and (6) adoption. Complementary aspects relating to ethics and communication were also addressed. Priorities, methods and targets for the roadmap were proposed for each building block. General consensus was reached on the potential contribution of the newly founded European Organ-on-Chip Society (EUROoCS), which could facilitate deployment of each block. EUROoCS would ideally initiate and catalyze dialogue between OoC developers, end users and regulators. The dialogue should address qualification, open technology platforms, standardization and implementation of OoC technology, as well as ethical aspects of human tissue mimics, training the next generation of OoC researchers, dissemination and communication.@en

Organ-on-Chip is considered a potentially game-changing technology born from the convergence of tissue engineering and microfluidic technology. Organ-on-Chip devices (OoCs) are expected to offer effective solutions to persisting problems in drug development and personalized disease treatments. This opinion paper surveys the current landscape in research, development, application and market opportunities for OoCs towards establishing a global and multi-stakeholder OoC eco-system. Based on panel discussions held at the Vision Workshop (Stuttgart, 23 May 2018) organized by the EU ORCHID consortium, as well as on additional bibliometric study, market analysis and expert interviews conducted within the EU ORCHID project, we outline perceived unmet needs, key challenges, barriers and perspectives of the field. We finally propose recommendations to-wards the definition of a comprehensive roadmap that could render OoCs realistic models of hu-man (patho)physiology in the near future.@en