PS4-3 A phase III trial of pimitespib (TAS-116) in patients with advanced gastrointestinal stromal tumor: CHAPTER-GIST-301doi:10.1016/j.annonc.2022.05.071A. SawakiY. KurokawaY. HonmaY. NaitoS. IwagamiH. BabaY. KomatsuT. Nishida