Abstract Closed-loop gene circuits are paving the way toward self-driving medicine: therapeutics that continuously sense physiological signals, compute responses, and autonomously tune therapeutic output. Yet clinical practice still relies largely on open-loop dosing and static interventions that are inherently blind to real-time fluctuations in disease dynamics. Since Paracelsus, medicine has recognized that dose governs both efficacy and toxicity, but closed-loop therapeutics now redefine dose as a continuously computed response to physiology rather than as a fixed schedule. Enabled by synthetic biology, feedback-controlled therapeutics can be built from modular sensors, processors, and effectors to maintain homeostasis around defined physiological setpoints, moving therapy beyond intermittent interventions toward continuous sensing and adaptive control.
Unal et al. (Fri,) studied this question.