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. 2021 May;9(10):867. doi: 10.21037/atm-21-1606

Table 6. Intensity percentage (%HPLC) and percentage of dose administered (%Dose) of [14C] almonertinib and its metabolites over the total radioactivity in feces samples at different time intervals in 4 participants.

Metabolic peak No. Liquid phase time, Rt (min) 0–48 h (45.32%Dose) 48–96 h (20.06%Dose) 96–240 h (16.61%Dose)
% HPLCa % Doseb %HPLCa % Doseb %HPLCa % Doseb
1 2.9–3.1 ND ND 0.42 0.08 ND ND
3 9.9–10.4 0.29 0.13 0.69 0.14 ND ND
4 10.6–11.1 0.57 0.26 1.25 0.25 ND ND
5 11.6–12.1 0.90 0.41 0.63 0.13 0.45 0.07
6 12.6–13.4 0.98 0.44 1.11 0.22 0.45 0.07
7 13.6–13.9 0.41 0.19 0.56 0.11 ND ND
8 15.1–15.4 2.86 1.30 1.74 0.35 ND ND
9 16.60 1.60 0.72 1.67 0.34 1.35 0.22
10 (M717) 17.4–17.9 0.74 0.34 1.11 0.22 0.45 0.07
11 18.6–19.4 2.54 1.15 2.36 0.47 2.69 0.45
12 (M607) 19.9–20.6 3.11 1.41 2.64 0.53 2.24 0.37
13 (M621) 21.1–21.9 1.68 0.76 1.94 0.39 0.45 0.07
14 (M621a) 23.1–23.4 1.76 0.80 1.67 0.34 2.69 0.45
15 23.9–24.3 0.82 0.37 1.11 0.22 0.90 0.15
16 24.90 1.06 0.48 1.25 0.25 0.45 0.07
17 26.1–27.6 2.50 1.13 2.50 0.50 0.90 0.15
18 (M527a) 29.9–30.3 0.74 0.34 0.42 0.08 ND ND
19 31.1–31.6 0.98 0.44 0.83 0.17 0.45 0.07
20 32.9–34.4 2.37 1.07 1.94 0.39 0.45 0.07
21 (M527b) 36.9–37.4 4.74 2.15 3.12 0.63 0.90 0.15
22 (M687) 37.9–38.9 1.47 0.67 2.92 0.59 2.69 0.45
23 (M617 and M575) 41.1–41.5 8.55 3.87 7.56 1.52 8.97 1.49
24 (M541a and M470a) 42.6–42.9 13.25 6.02 12.98 2.61 21.53 3.57
25 (M632b) 44.1–44.4 1.51 0.68 1.60 0.32 0.90 0.15
26 (M646) 45.3–45.6 1.64 0.74 1.94 0.39 4.48 0.74
27 (M688) 46.1–46.4 2.45 1.11 3.05 0.61 2.69 0.45
28 (M470b and M541c) 47.90 2.78 1.26 3.12 0.63 2.24 0.37
29 (almonertinib-M30 and M470c) 48.9–49.8 1.19 0.54 0.97 0.19 ND ND
30 (M470d) 50.6–51.6 1.47 0.67 1.60 0.32 0.90 0.15
31 (M497a) 52.8–53.4 0.16 0.07 0.28 0.06 ND ND
32 (M511a) 54.1–54.5 2.95 1.34 3.05 0.61 1.35 0.22
33 (M470e) 54.90 1.55 0.70 2.08 0.42 1.79 0.30
34 (M440) 55.6–55.9 2.45 1.11 1.80 0.36 4.48 0.74
35 (M497b) 56.10 1.06 0.48 1.25 0.25 0.90 0.15
36 (HAS-719) 56.9–57.1 12.31 5.57 17.07 3.44 22.87 3.80
37 (almonertinib-M2) 57.8–58.1 0.74 0.34 0.83 0.17 1.35 0.22
38 ([14C]almonertinib) 58.9–59.1 11.94 5.39 7.56 1.52 7.18 1.19
39c 60.1–69.9 1.88 0.85 1.39 0.28 0.90 0.15
Othersc <0.01 ND <0.01 ND <0.01 ND

a, the intensity percentages of [14C]almonertinib and its metabolites over the TRA in urine samples. For specific data, see ARC1340N: 2a, 2b, 3a, and 3b; b, the dose percentages of [14C]almonertinib and its metabolites (%Dose) = the total radioactivity in urine sample over the dose administered (RTC01289) × the intensity percentages of [14C]almonertinib and its metabolites over the TRA in urine sample; c, contains multiple <0.1% metabolites. ND, not detected.