A Markov Decision Process for Response-Adaptive Randomization in Clinical Trials David Merrell∗, Thevaa Chandereng†, Yeonhee Park‡ ∗Department of Computer Sciences, University of Wisconsin Madison. †Department of Biostatistics, Columbia University. ‡ Department of Biostatistics and Medical Informatics, University of Wisconsin Madison. dmerrell@cs.wisc.edu, tc3123@cumc.columbia.edu, ypark56@wisc.edu