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Table 6 Plasma concentrations of Endoxifen in subjects with CYP2D6, CYP2C19 and CYP3A5 genotype

From: Influence of CYP2D6, CYP2C19 and CYP3A5 polymorphisms on plasma levels of tamoxifen metabolites in Algerian women with ER+ breast cancer

CYP2D6 CPIC phenotype

(N = 97)

Endoxifen (ng/mL) median

URM

32

94.19

NM

48

69.13

IM

16

29.40

PM

1

4.40

CYP3A5 CPIC phenotype

(N = 97)

Endoxifen (ng/mL) median

NM

3

114.31

IM

24

90.92

PM

70

70.88

CYP2C19 CPIC phenotype

(N = 97)

Endoxifen (ng/mL) median

URM

1

88.70

RM

30

60.53

NM

49

71.77

IM

10

47.34

PM

2

45.60