My father has the c-kit mutation stage 4 with no brain involvement. After failing newer immunotherapys he was put on gleevec(imatinib) by his oncologist. We also found another drug called tysinga after doing a literature search. The two studies I found were around a 100 people showed a benefit for around 6 – 9 months in those who responded. Those are generalizations I can recall off the top of my mind not exact numbers. First couple scans showed mixed results – some areas stable some worsening. We hope and maintain.
