Heartseed Inc. raised ¥2 billion (US$14.3 million) in a series D round to continue the phase I/II Lapis trial of its allogeneic induced pluripotent stem cell (iPSC)-derived cardiomyocytes for heart failure. The lead asset, HS-001, is an investigational cell therapy consisting of clusters of purified heart muscle cells (cardiomyocyte spheroids) derived from iPSCs that are designed to restore heart muscle and function in patients with advanced heart failure.