Ulipristal acetate-d3 (CDB-2914-d3) is deuterium labeled Ulipristal acetate. Ulipristal acetate (CDB-2914) is an orally active, selective progesterone receptor modulator (SPRM). Ulipristal acetate stimulates the autophagic response selectively in leiomyoma cells. Ulipristal acetate has the potential for benign gynecological conditions treatment, such as uterine myoma[1][2][3].