From Sequential TKIs to Combination Therapy in Advanced GIST: Current Standards, PEAK Phase 3 Data, and Practical Guidance for the Community Oncologist
Dr. Jason Sicklick from UC San Diego introduces this OncLive Peer Exchange program addressing the evolving post-third-line GIST landscape, joined by sarcoma experts Dr. Mark Agulnik, Dr. Neeta Somaiah, Dr. Michael Heinrich, Dr. Seth Pollack, and Dr. Brian Schulte. The discussion focuses on the first positive Phase 3 second-line trial in over two decades currently under FDA review.
Dr. Somaiah outlines the current FDA-approved sequence for advanced KIT-mutant GIST, emphasizing that community oncologists may encounter only handful of patients annually. First-line therapy uses imatinib 400mg daily, escalating to 400mg twice daily for KIT exon 9 mutations based on superior activity data.