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. 2021 Sep 12;61(12):1618–1625. doi: 10.1002/jcph.1939

Table 5.

Percentage of Patients Predicted to Achieve Prespecified Exposure Ranges for the Testosterone Undecanoate 8‐Week and 10‐Week Regimens (Injection/Dose 10)

Patients, % (95%PI)
Parameter Concentration Range, ng/dL 10‐Week Dosing 8‐Week Dosing
Cavg 300‐1000 97.4 (94.0‐100) 98.3 (94.9‐100)
<300 1.7 (0.0‐5.1) 0.9 (0.0‐2.6)
>1000 0.0 (0.0‐1.7) 0.9 (0.0‐3.4)
Cmax 1300‐1500 8.5 (4.3‐12.8) 9.4 (5.1‐14.5)
1800‐2500 3.0 (0.9‐6.8) 3.4 (0.9‐6.8)
<1500 90.6 (86.3‐94.9) 88.9 (84.6‐94.0)
<1300 82.1 (76.1‐88.0) 79.5 (74.4‐85.5)
>2500 0.0 (0.0‐1.7) 0.0 (0.0‐1.7)
Ctrough >300 66.7 (59.0‐75.2) 76.1 (67.5‐83.8)

Cavg, average testosterone concentration during a dosing interval; Cmax, maximum observed testosterone concentration during a dosing interval; Ctrough, last observed testosterone concentration during a dosing interval prior to a subsequent dose; PI, prediction interval.