Comparing Regorafenib Combined With Envafolimab to Physician's Choice in Patients With Metastatic Gastrointestinal Stromal Tumors Harboring KIT Exon 17 Mutations Refractory to Standard Treatment
Conditions
- GIST - Gastrointestinal Stromal Tumor
- KIT Gene Mutation
Interventions
- DRUG: physician-selected treatment
- DRUG: Regorafenib + Envafolimab
Sponsor
Jian Li