Optimal Control for Cancer Chemotherapy Using Hybrid Quantum Particle Swarm Optimization
Abstract
Optimal control in cancer chemotherapy is challenged by tumor heterogeneity and mutations, which complicate the effectiveness of treatment. Traditional methods, such as Pontryagin’s maximum principle (PMP), are often hindered by their reliance on an initial guess for the costate equation, affecting accuracy and convergence. To address these limitations, this work introduces a hybrid Quantum Particle Swarm Optimization (QPSO) method based on regularization. QPSO is employed for global exploration to approximate the optimal control trajectory, followed by a regularization-based refinement to ensure smoothness and consistency with optimality conditions. The Hamiltonian function is used for first-and second-order optimality checks, verifying solution quality. Numerical case studies explore various drug effectiveness functions, demonstrating the role of periodic and localized drug delivery in achieving robust tumor suppression and providing insights into the impact of different drug combinations on optimal chemotherapy strategies.
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