Onkure Therapeutics Inc. has described phosphatidylinositol 3-kinase α (PI3Kα) (H1047R mutant) inhibitors reported to be useful for the treatment of cancer, congenital lipomatous overgrowth, vascular malformations, epidermal naevi and skeletal abnormalities, scoliosis and PIK3CA related overgrowth spectrum (PROS), among others.