Evidence-Based Medicine in Neuroscience: From Theory to Real Clinical Decisions

Abstract

Evidence-Based Medicine (EBM) is a cornerstone of contemporary clinical practice; however, its application in neuroscience remains challenged by the gap between available evidence and the complexity of real-world clinical decision-making. This narrative review provides a critical and practice-oriented analysis of how EBM principles must be reinterpreted and adapted to address the epistemological, methodological, and clinical particularities of neuroscience. Using an integrative framework, this review revisits the core concepts of EBM and examines the distinctive features of neuroscience evidence, including reliance on proxy outcomes, clinical heterogeneity, the chronic and progressive nature of many neurological conditions, and ethical and practical constraints on classical randomized trials. The transition from the traditional evidence hierarchy to next-generation EBM models is explored, emphasizing the integration of multiple layers of information such as real-world data, patient-centered outcomes, and longitudinal clinical trajectories. Common errors in translating evidence into clinical practice are identified, including the conflation of statistical significance with clinical relevance, uncritical extrapolation of population-level findings to individual patients, and rigid application of clinical guidelines. Finally, the manuscript outlines future research opportunities based on identified knowledge gaps, aimed at strengthening a more contextualized, realistic, and patient-centered EBM in neuroscience.