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Table 2 Trajectory of costs under Medicare Part D for breast cancer adjuvant endocrine agents before and after availability of generic alternatives

From: Patient costs of breast cancer endocrine therapy agents under Medicare Part D vs with generic formulations

Medication

Monthly cost in gap

Monthly cost in catastrophic

 
 

Median of state mean costs

Median of state mean costs

Median of state mean costs

$, (Range of mean costs)

$, (Range of mean costs)

$, (Range of mean costs)

 

2007

2011 a

Change (%)

2007

2011 a

Change (%)

2007

2011 a

Change (%)

Arimidex/Anastrozole

39.64 (38.37-48.19)

9.57 (8.00-11.95)

−76

258.64 (247.44-263.47)

38.94 (31.80-78.46)

−85

13.18 (12.68-13.32)

3.72 (3.39-6.19)

−72

Aromasin/Exemestane

42.57 (40.72-50.94)

49.50 (42.34-118.68)

+16

267.56 (255.21-273.62)

244.51 (228.61-270.95)

−9

13.66 (13.07-13.79)

14.41 (13.51-71.41)

+6

Femara/Letrozole

41.92 (39.38-51.11)

69.31 (59.69-85.17)

+65

277.65 (249.14-282.54)

225.13 (209.10-252.23)

−19

14.16 (12.96-14.34)

38.53 (33.70-57.15)

+172

Tamoxifen

6.19 (5.95-9.22)

5.54 (5.12-6.89)

−11

21.32 (20.36-25.42)

13.17 (12.44-21.11)

−38

2.26 (2.20-2.70)

2.73 (2.50-3.47)

+21

  1. aFirst year generic formulation was available to Medicare Part D beneficiaries; generic cost provided.