Table 1 Stability of bortezomib (2.5 mg/mL) in storage containers (vials and syringes) at 5 ± 3 °C in the dark (all data are presented as the mean ± S.D. of test results for all analysed samples from 3 different vials or syringes and 2 samples withdrawn from each preparation (n = 6)).

From: Physicochemical stability of bortezomib solutions for subcutaneous administration

Sample type

Initial drug concentration (mg/mL) Mean ± S.D

Drug concentration remaining (%) Mean ± S.D

1 day

3 days

4 days

7 days

10 days

Glass vial

2.46 ± 0.01

99.75 ± 0.26

97.59 ± 0.54

98.05 ± 0.35

95.89 ± 0.33

91.56 ± 0.60

Polypropylene syringes

2.45 ± 0.04

100.76 ± 0.24

98.02 ± 0.62

97.62 ± 0.68

95.84 ± 0.41

91.02 ± 0.53