Table 4.
Chronological in vitro serum stability study of [89Zr]Zr-complexes in human serum maintained at 37°C for 7 days as determined by size exclusion chromatography (n = 3 for each [89Zr]Zr-complex at each time point)
| Time point | % Intact of [89Zr]Zr-complexes (n = 3) | ||
|---|---|---|---|
| [89Zr]Zr-PCTA | [89Zr]Zr-NOTA | [89Zr]Zr-TRITA | |
| 0 h | 100 | 100 | 100 |
| 1 d | 99.9 ± 0.1 | 97.7 ± 0.2 | 80.8 ± 1.1 |
| 3 d | 99.8 ± 0.1 | 95.5 ± 0.4 | 59.1 ± 1.5 |
| 5 d | 99.6 ± 0.2 | 91.8 ± 0.3 | 45.2 ± 2.4 |
| 7 d | 99.4 ± 0.2 | 89.2 ± 0.5 | 32.4 ± 0.6 |