After moving to Kyiv at the invitation of Academician Oleksandr Bogomolets, from 1940, for 25 years, Vasyl Pavlovych headed the endocrinology laboratory of the Institute of Experimental Biology and Pathology, which was later reorganized into the Bogomolets Institute of Physiology Bogomolets under the USSR Academy of Sciences. In 1941, Komisarenko defended his doctoral dissertation, and then published a book "On the pathogenesis of insulin shock."