Full title: An International, Multi-Centre, Open-Label, Randomized, Phase 3 Study of BLU-285 vs. Regorafenib in Patients with Locally Advanced Unreselectable or Metastatic Gastrointestinal Stromal Tumour (GIST)
Age: 18+ 
Phase: 3

A Phase 3 study in patients with advanced GIST (unresectable or metastatic), which compares the use of two drugs (avapritinib vs. regorafenib), in patients who have previously been treated with imatinib and 1 or 2 other TKIs.