Figure 6 shows an efficacy study of AR42J tumor bearing mice treated with 212Pb-DOTAMTATE in combination with 5-fluorouracil. A. Individual mouse efficacy data showing tumor volumes of mice injected with saline (black), 5-FU only (red), 212Pb-DOTAMTATE only (blue) and in combination with 5-FU (green). B. Kaplan Meier of animals treated with saline (black), 5-FU only (red), 212Pb-DOTAMTATE only at 2-week intervals (blue dashed), 3-week intervals (blue solid), in combination with 5-FU at 2-week intervals (green dashed) or three-week intervals (green solid).