High concentration factor vii polypeptide formulations comprising an aromatic preservative and an antioxidant
A technology of aromatic preservatives and antioxidants, applied in medical preparations with non-active ingredients, medical preparations containing active ingredients, peptidases, etc., can solve problems such as harmful protein stability
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[0113] The inventors have now determined that the following embodiments are particularly beneficial, namely a liquid, aqueous pharmaceutical composition as defined herein, comprising:
[0114] Factor VII polypeptide (i) at 10-90 mg / mL;
[0115] a buffer (ii) suitable for maintaining a pH in the range of about 5.0 to about 9.0;
[0116] at least one aromatic preservative (iii) at a concentration of 0.1-20 mg / mL; and
[0117] at least one antioxidant (iv) at a concentration of 0.1-5.0 mg / mL;
[0118] stability
[0119] The compositions of the invention are useful as stable ready-to-use compositions of Factor VII polypeptides. The compositions will generally be stable for at least 6 months, preferably up to 36 months when stored at a temperature in the range of 2°C to 8°C.
[0120] The term "stable" is intended to mean that (i) the composition retains at least 50% of its original biological activity as measured by a one-stage coagulation assay (Assay 4) after storage at 2°C t...
Embodiment 1
[0182] As above, under the following conditions: 3 μM activated factor VII, 50 mM imidazole, pH 6.5, 20 mM CaCl 2 , 50 mM NaCl, 0.5 mg / mL bovine serum albumin, 1 mM S-2288, the amidolytic activity of activated Factor VII was measured by degradation of D-ILE-PRO-ARG-P-nitroanilide. Activity was measured in a number of different concentrations of m-cresol and phenol. All experiments were performed in duplicate. figure 1 Shows the amidolytic activity at different preservative concentrations, in arbitrary units. Surprisingly, a decrease in activity was observed with increasing preservative concentration.
Embodiment 2
[0184] Under the following conditions: 15 mg / mL activated factor VII, 10 mM histidine, pH 6.0, 20 mM CaCl 2 , 8% sucrose, and activated factor VII were mixed with different concentrations of m-cresol or phenol. Samples in a total volume of 100 μl were dispensed into quartz microtiter plates (Hellma) and turbidity was assessed by measuring the absorbance at 400 nm on a plate reader. Turbidity is indicative of precipitation in the sample. Significant precipitation was observed in the samples at the highest preservative concentration studied. This phenomenon may limit the use of m-cresol and phenol without the addition of other excipients to remedy the precipitation.
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