Ex Vivo Biodistribution 3, 24, and 48 Hours After Intravenous Injection of 2 μg of 89Zr-DFO-ZEGFR:03115 Coinjected with 10 μg of Nonlabeled ZEGFR:03115 in Mice Bearing CAL27 Xenografts
| Organ | 3 h | 24 h | 48 h |
| Blood | 3.70 ± 0.55 | 0.87 ± 0.32 | 0.23 ± 0.06 |
| Heart | 0.99 ± 0.19 | 0.37 ± 0.12 | 0.31 ± 0.04 |
| Lungs | 2.74 ± 0.93 | 0.88 ± 0.13 | 0.70 ± 0.08 |
| Kidney | 130.42 ± 22.25 | 108.80 ± 19.60 | 104.85 ± 11.10 |
| Spleen | 1.14 ± 0.18 | 0.72 ± 0.20 | 0.79 ± 0.37 |
| Liver | 4.99 ± 0.85 | 4.31 ± 1.00 | 4.11 ± 1.41 |
| Pancreas | 0.67 ± 0.14 | 0.36 ± 0.10 | 0.35 ± 0.25 |
| Tumor | 3.88 ± 0.46 | 2.43 ± 0.27 | 2.13 ± 0.12 |
| Bone | 0.99 ± 0.28 | 2.28 ± 0.27 | 3.44 ± 0.59 |
| Intestine | 1.09 ± 0.16 | 0.42 ± 0.03 | 0.40 ± 0.02 |
| Muscle | 0.38 ± 0.09 | 0.14 ± 0.04 | 0.16 ± 0.07 |
| Ratio | |||
| Tumor-to-blood | 1.04 | 2.79 | 9.34 |
| Tumor-to-muscle | 10.31 | 17.35 | 13.56 |
| Tumor-to-liver | 0.78 | 0.56 | 0.52 |
Data are mean ± SD (n ≥ 3) %ID/g.