Regenerative medicine (RM) has experienced uncertainty in regulatory review since the beginning. Political and social environments always affect policy: consistency and interoperability across societies has been hard to achieve, and over time, extreme precaution has largely been replaced with optimism and high expectations from patients, politicians and investors. Like all novel therapies, disputes about what sort of evidence matters and how it should best be produced dogged the field's early days. With little expertise from regulators or industry, and few standards to go on, safety and effectiveness requirements were negotiated. More recently, assumptions about what counts as acceptable evidence are being up-ended in light of new tools and techniques for the collection and analysis of data, but also decades of discontent with evidence-based medicine (EBM). Patients are also demanding to have a say in clinical research and may be willing to take greater risks. All this is happening in a political climate in which funding is being cut for scientific research and governmental oversight.Recent US laws portend further changes. While intended to provide a clear and lubricated pathway for product approval, new uncertainties may arise for RM. The US 21st Century Cures Act [1] (hereafter 'Cures Act') makes statutory changes to the US Department of Health and Human Services (DHHS) and the US FDA, directing the agencies to expedite product approvals by removing requirements viewed as burdensome while considering alternative forms of evidence. This entails fundamental changes to regulatory frameworks altering how evidence may be collected and evaluated. Simultaneously, Right-To-Try (RTT) laws aim to broaden access to experimental treatments with only preliminary evidence.Commentators portray the changes on the one hand as liberating patient access to treatments, encouraging innovation and lowering regulatory burdens, and on the other, encouraging false hope among vulnerable patients, attacks on science, lobbyist-driven maneuvering, and lowering rigorous standards. However, framing such controversies over regulatory review as polarities oversimplifies the situation. We argue that current changes need to be viewed within the broader contexts of social phenomena that shape what comes to count as valid evidence. We first briefly highlight features of the Cures Act, then situate it historically and politically within the longer history and broader contexts of evidence production. We close with implications for RM.
New paradigms for producing evidence?The Cures Act was billed as a patient-centered effort to promote innovative therapies and reduce activities seen as barriers to research. One of the few successful bipartisan legislative efforts in a divisive Congress, it passed overwhelmingly at the end of 2016. This broad-sweeping law has many components, including increasing funding for specific medical research areas, authorizing broader data sharing, and reducing bureaucratic processes. Significantly, it directs the FDA to co...