Biodistribution of 111In-R1507 and 89Zr-R1507 in Mice with Subcutaneous SUM149 Xenografts at 7 Days After Injection
| Tissue | 111In-R1507 (%ID/g) | 89Zr-R1507 (%ID/g) |
| Blood | 5.6 ± 0.5 | 5.7 ± 0.7 |
| Muscle | 0.7 ± 0.1 | 0.7 ± 0.1 |
| Tumor | 20.9 ± 2.4 | 22.3 ± 2.5 |
| Lung | 4.5 ± 0.7 | 4.6 ± 0.5 |
| Spleen | 5.4 ± 0.9 | 5.7 ± 0.7 |
| Kidney | 4.4 ± 0.4 | 4.9 ± 0.7 |
| Liver | 2.9 ± 0.4 | 4.6 ± 0.4 |
| Small intestine | 2.5 ± 0.4 | 2.5 ± 0.4 |
| Pancreas | 1.0 ± 0.1 | 1.1 ± 0.1 |
| Bone | 1.3 ± 0.4 | 8.2 ± 4.2 |
| Tumor-to-liver ratio | 7.5 ± 1.2 | 4.8 ± 0.2 |
| Tumor-to-blood ratio | 3.8 ± 0.7 | 3.9 ± 0.5 |
Values are mean ± SD.