Known driver-mutations were associated with partial-responses (best dT/C = 0.42), but models with FGFR-fusions, especially FGFR2-fusions, were very sensitive leading to stasis or strong-regression, particularly in gastric cancer. High-expression of FGFR2 was also associated with strong responses….DZB showed convincing activity in GIC-models with FGFR-fusions and/or high expression.