No significant difference regarding mean TAC trough level (AT1R-Ab positive group, IR-TAC: 10.2 ± 0.1 ng/mL vs. ER-TAC: 9.3 ± 1.9 ng/mL, p = 0.56; AT1R-Ab negative group, IR-TAC: 8.5 ± 1.1 ng/mL vs. 8.4 ± 0.7 ng/mL, p = 0.88) and median TAC IPV (AT1R-Ab positive group, IR-TAC: 19.7% (12.2–35.5) vs. ER-TAC: 15.2% (3.4–15.2%), p = 0.48; AT1R-Ab negative group, IR-TAC: 13.9% (7.1–21) vs. ER-TAC: 12.1 (3–22.7), p = 0.63)) according to AT1R-Ab and TAC type has been observed. Here, AGTR1 is linked to persistent truncus arteriosus.