PT - JOURNAL ARTICLE AU - Jonsson, Vanessa AU - Matni, Nikolai AU - Murray, Richard M. TI - Synthesizing Combination Therapies for Evolutionary Dynamics of Disease for Nonlinear Pharmacodynamics AID - 10.1101/009480 DP - 2014 Jan 01 TA - bioRxiv PG - 009480 4099 - http://biorxiv.org/content/early/2014/09/21/009480.short 4100 - http://biorxiv.org/content/early/2014/09/21/009480.full AB - Our previous results proposed an iterative scalable algorithm for the systematic design of sparse, small gain feedback strategies that stabilize the evolutionary dynamics of a generic disease model with linear pharmacodynamics. In this manuscript, we use piecewise linear approximations to model nonlinear drug effects. We leverage results from optimal controller synthesis for positive systems to formulate the feedback synthesis problem as an optimization problem that sequentially explores piecewise linear subsystems corresponding to higher and higher treatment dosages.