Harmonized regulation of research with human stem cells in Europe has shaped innovation in regenerative medicine. Findings from a Phase III academic clinical trial of an autologous cell procedure illustrate the obstacles that a multinational trial faces. A typology of the obstacles encountered, may help other teams embarking upon trials. The findings throw light on the situation of clinician-scientists in clinical innovation, as the expertise to run scientific trials is very complex. The innovation route of clinical translation takes insufficient account of the interdependencies between multiple social and cultural factors from outside the laboratory and the clinic. For ethical reasons, however, academic and business routes to stem cell treatments ought to be enabled by the regulators. Suggestions arise, how academics can prepare for trials, that academic research needs better institutional support and that new models of medical innovation may need to be developed for regenerative medicine. The landscape of regulations applying to innovations and medicine, and especially with human cells and tissues is chequered and shapes the socio-political environments in which regenerative medicine (RM) proceeds. Europe has very strict governance regimes in place that not only prevents rogue marketing of cell treatments, but also adds a high logistical and cost burden to the development of future therapies. Progress in approved clinical treatments is slow and pathways toward them are sought that solve the conundrum of pressing consumer demand and patient need, the problems arising from existing forms of regulatory oversight and the long time and high financial stakes involved in bringing new treatments into the clinic via the staggered model of the scientific clinical trial (CT). Medical translation from the laboratory bench to the bedside has become increasingly fraught with problems while it has become imperative for science to demonstrate its applicability [1][2][3].Salter, Zhou and Datta [4,5] discuss four innovation models for stem cell (SC) therapies. Model I is called "Scientific SC Innovation." This model follows the multistep process from basic research to clinical application in the established well-defined stages of the CT. They then discuss three other models (II, III and IV) that bridge the gulf between the traditional CT and patient-based or exemption-based uses of new treatments. Models II-IV make use of different ways of collecting data about the effects of experimental treatments, processes of scaling up from a physician or hospital exemption that are not formal CTs and tensions between the professional ethos of medicine and the technical approach to standardize that characterizes most regulations. For these models, they use the umbrella term "Medical SC Innovation." Models II, III and IV follow a wider set of prerogatives than the scientific model. They are often build on patients' self-reported health improvements and respond to the individual patient's needs or to the patient-consumers, who apply -and of...