LYOPHILIZED RECOMBINANT VWF FORMULATIONS
The present invention provides long-term stable pharmaceutical formulations of lyophilized recombinant von-Willebrand Factor (rVWF) and methods for making and administering said formulations.
1 . A stable lyophilized pharmaceutical formulation of a recombinant von Willebrand Factor (rVWF) comprising: (a) a rVWF; (b) one or more buffering agents; (c) one or more amino acids; (d) one or more stabilizing agents; and (e) one or more surfactants;
said rVWF comprising a polypeptide selected from the group consisting of:
a) the amino acid sequence set out in SEQ ID NO: 3;
b) a biologically active analog, fragment or variant of a);
c) a polypeptide encoded by the polynucleotide set out in SEQ ID NO: 1;
d) a biologically active analog, fragment or variant of c); and
e) a polypeptide encoded by a polynucleotide that hybridizes to the polynucleotide set out in SEQ ID NO: 1 under moderately stringent hybridization conditions;
said buffer is comprising of a pH buffering agent in a range of about 0.1 mM to about 500 mM and said pH is in a range of about 2.0 to about 12.0;
said amino acid is at a concentration of about 1 to about 500 mM;
said stabilizing agent is at a concentration of about 0.1 to about 1000 mM; and
said surfactant is at a concentration of about 0.01 g/L to about 0.5 g/L.
2 . The formulation of claim 1 wherein the rVWF comprises the amino acid sequence set out in SEQ ID NO: 3.
3 . The formulation of claim 1 wherein the buffering agent is selected from the group consisting of citrate, glycine, histidine, HEPES, Tris and combinations of these agents.
4 . The formulation of claim 3 wherein the buffering agent is citrate.
5 . The formulation of claim 1 wherein pH is in the range of about 6.0 to about 8.0.
6 . The formulation of claim 5 wherein pH is in the range of about 6.5 to about 7.5.
7 . The formulation of claim 4 wherein the pH is about 7.3.
8 . The formulation of claim 1 wherein the buffering agent is citrate and the pH is about 7.3.
9 . The formulation of claim 1 wherein the amino acid is selected from the group consisting of glycine, histidine, proline, serine, alanine and arginine.
10 . The formulation of claim 9 wherein the amino acid is at a concentration range of about 0.5 mM to about 300 mM.
11 . The formulation of claim 10 wherein the amino acid is glycine at a concentration of about 15 mM.
12 . The formulation of claim 1 wherein the rVWF comprises the amino acid sequence set out in SEQ ID NO: 3; wherein the buffering agent is citrate and the pH is about 7.3; and wherein the amino acid is glycine at a concentration of about 15 mM.
13 . The formulation of claim 1 wherein the one or more stabilizing agents is selected from the group consisting of mannitol, lactose, sorbitol, xylitol, sucrose, trehalose, mannose, maltose, lactose, glucose, raffinose, cellobiose, gentiobiose, isomaltose, arabinose, glucosamine, fructose and combinations of these stabilizing agents.
14 . The formulation of claim 13 wherein the stabilizing agents are trehalose at a concentration of about 10 g/L mM and mannitol at a concentration of about 20 g/L.
15 . The formulation of claim 1 wherein the surfactant is selected from the group consisting of digitonin, Triton X-100, Triton X-114, TWEEN-20, TWEEN-80 and combinations of these surfactants.
16 . The formulation of claim 15 wherein the surfactant is TWEEN-80 at about 0.01 g/L.
17 . The formulation of claim 1 wherein the rVWF comprises amino acid sequence set out in SEQ ID NO: 3; wherein the buffering agent is citrate at a concentration of about 15 mM at about pH 7.3; wherein the amino acid is glycine at a concentration of about 15 mM; wherein the stabilizing agents are trehalose at a concentration of about 10 g/L and mannitol at a concentration of about 20 g/L.; and wherein the surfactant is TWEEN-80 at about 0.1 g/L.