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Table 2 Per cycle dosimetry, effective half-life and response one month after final cycle for all patients

From: Impact of cyclic changes in pharmacokinetics and absorbed dose in pediatric neuroblastoma patients receiving [177Lu]Lu-DOTATATE

Patient

Per cycle

Cumulative

Follow up

Tumour absorbed dose (Gy)

Tumour effective half-life (h)

Kidney absorbed dose (Gy)

Kidney effective half-life (h)

Tumour absorbed dose (Gy)

Kidney absorbed dose (Gy)

Δ in tumour dimension

P1-1

21.3

54.0

2.60

85.5

21.3

2.6

P1-2

11.4

39.0

3.18

71.3

32.7

5.78

P1-3

32.9

26.5

1.47

43.8

65.6

7.25

P1-4

6.6

31.2

4.02

47.0

72.2

11.27

+ 4.65%

P2-1

13.5

43.6

1.00

109.5

13.5

1

P2-2

11.4

37.8

1.03

102.0

24.9

2.03

− 1.86% *

P2-3

17.7

20.0

1.66

69.8

42.6

3.69

P2-4

0.72

29.8

1.81

73.4

43.32

5.5

P3-1

8.12

51.0

1.28

153.1

8.12

1.28

P3-2

9.67

37.7

1.19

93.4

17.79

2.47

P3-3

2.73

24.8

1.28

87.9

20.52

3.75

P3-4

10.4

25.9

1.98

118.4

30.92

5.73

− 5.47%

P4-1

17.7

40.9

1.53

39.8

17.7

1.53

P4-2

24.9

40.3

1.59

82.4

42.6

3.12

P4-3

7.5

22.9

2.87

86.7

50.1

5.99

P4-4

20.1

35.5

2.82

57.8

70.2

8.81

+ 4.26%

P5-1

11.8

57.8

0.66

91.7

11.8

0.66

a

P5-2

11.3

47.6

0.66

132.9

23.1

1.32

a

P5-3

4.15

25.8

1.77

95.0

27.25

3.09

a

P5-4

1.92

35.1

1.79

26.9

29.17

4.88

a

P6-1

26.4

56.2

2.32

102.5

26.4

2.32

P6-2

28.8

43.8

3.20

146.1

55.2

5.52

P6-3

15.2

30.5

3.03

52.0

70.4

8.55

P6-4

1.00

32.5

3.03

100.6

71.4

11.58

− 2.08%

Median

11.4

36.6

1.78

87.3

30.0

3.72

 
  1. aPatient 5 had no measurable primary lesion at baseline
  2. *Data not available following cycle 4
  3. Format is [patient number-cycle number]