There is one clinical trial.
This study is an open-label, multicenter, phase I/II study to evaluate the safety, PK and clinical efficacy of avapritinib in Chinese subjects with unresectable or metastatic GIST. The study consists of two parts: dose escalation (phase I) and dose expansion (phase II).
iii) Group 3: Chinese subjects with unresectable GIST that doesn't harbor D824V mutation in PDGFRα gene and that has progressed despite treatment with imatinib and at least another tyrosine kinase inhibitor. --- D824V ---