Table 1.

Uptake of ⁶⁴Cu-DOTA-GU40C4 and ⁶⁴Cu-DOTA-P_ctrl in major organs of interest determined by quantitative PET imaging analysis.

	64Cu-DOTA-GU40C4			64Cu-DOTA-Pctrl
	1 h	4 h	20 h	1 h	4 h	20 h
Tumor	* †2.25 ± 0.24	‡2.15 ± 0.34	* §1.90 ± 0.18	0.34 ± 0.12	0.30 ± 0.14	0.51 ± 0.19
Salivary glands	†3.17 ± 0.25	‡3.00 ± 0.36	§1.83 ± 0.21	0.28 ± 0.08	0.22 ± 0.04	0.42 ± 0.10
Heart	1.30 ± 0.27	1.50 ± 0.20	1.30 ± 0.26	0.31 ± 0.11	0.32 ± 0.05	0.65 ± 0.04
Lung	2.03 ± 0.32	1.77 ± 0.31	1.33 ± 0.06	0.32 ± 0.11	0.42 ± 0.13	0.52 ± 0.01
Liver	24.03 ± 0.90	24.40 ± 0.78	18.53 ± 1.31	13.57 ± 1.38	12.27 ± 1.67	11.63 ± 1.56
Kidney	6.57 ± 1.34	6.50 ± 1.23	5.07 ± 0.91	43.47 ± 4.35	41.53 ± 3.07	30.43 ± 5.66
Muscle	0.49 ± 0.07	0.37 ± 0.06	0.26 ± 0.02	0.14 ± 0.03	0.12 ± 0.04	0.12 ± 0.03

Data are presented as %ID/g ±standard deviation (n = 3).

^* p = 0.06;

^† p = 0.004;

^‡ p = 0.02;

^§ p = 0.65.