Diabetes Therapeutics Beyond Hyperglycaemia: Toward Biological Systems Redesign

Diabetes pharmacology has historically been dominated by a glucose-centric framework in which therapeutic efficacy is defined primarily by reduction in blood glucose and glycated haemoglobin (HbA1c). Although this paradigm transformed diabetes from a fatal disease into a chronic manageable condition, persistent cardiovascular, renal, inflammatory, and metabolic complications have exposed the limitations of viewing diabetes principally as a hyperglycaemic disorder. This perspective examines the progressive conceptual transition occurring across modern diabetes therapeutics, beginning with the exhaustion of the traditional glucose-centred model and extending through the emergence of incretin-based therapies, organ-protective pharmacology, immunological intervention, regenerative endocrinology, bioengineering, and AI-enabled closed-loop systems. Drawing on these developments, it argues that contemporary therapeutic advances progressively derive their efficacy from coordinated modulation of interconnected physiological networks rather than solely glucose-lowering effect. On this basis, the article proposes biological systems redesign as a unifying conceptual model for the future of diabetes therapeutics, in which treatment is directed toward the restoration of integrated metabolic and organ-level homeostasis, the preservation of system resilience, and the interception of disease progression across multiple biological scales.