Herpesvirus compositions and related methods
The present disclosure relates to liquid and dried compositions comprising a live, attenuated or genetically modified herpesvirus and methods of preparing such compositions, in one aspect, the composition comprises at least two or more pharmaceutically acceptable exctpients, at least one of which is histidine and at least one of which is a sugar or sugar alcohol. The compositions retain a sufficiently high infectious titre following storage or large-scale manufacturing steps, such as lyophilization.
1. A composition consisting of:
a live, attenuated or genetically modified herpes simplex virus type-2 (HSV-2) or herpes simplex virus type-1 (HSV-1),
1 mM to 50 mM histidine,
sucrose or trehalose,
sodium chloride, and
glutamate, and
has a pH of about 6.5 to 7.5, wherein the composition is in dried form.
2. The composition of claim 1 , wherein viral titres in the composition are between 10 ∂ to 10 5 pfu/mL before drying.
3. The composition of claim 1 , wherein the glutamate is selected from the group consisting of potassium glutamate, mono sodium glutamate, and sodium glutamate.
4. The composition of claim 1 , wherein the glutamate is present in an amount of 1 mM to 100 mM.
5. The composition of claim 1 , wherein the histidine is present in an amount of 5 mM to 20 mM and the sucrose is present in an amount of 5% to 10% w/v.
6. The composition of claim 5 , wherein the glutamate is selected from the group consisting of 1 mM to 100 mM potassium glutamate, 1 mM to 100 mM mono sodium glutamate, or 1 mM to 100 mM sodium glutamate.
7. The composition of claim 6 , wherein the composition consists of a live, attenuated or genetically modified herpes simplex virus type-2 (HSV-2) or herpes simplex virus type-1 (HSV-1), 10 mM histidine, 10% w/v sucrose, 160 mM sodium chloride, 50 mM potassium glutamate.
8. The composition of claim 1 , wherein the live, attenuated or genetically modified herpesvirus is a herpes simplex virus 2 (HSV-2).
9. The composition of claim 8 , wherein the HSV-2 is a replication defective HSV-529 strain.
10. The composition of claim 8 , wherein the HSV-2 contains less than 10 ng of host cell DNA per 1×10 7 pfu/mL.
11. The composition of claim 1 , wherein the composition is freeze-dried, foam-dried or spray-dried.
12. The composition of claim 11 , wherein the residual moisture content of the composition is 6% or less.
13. The composition of claim 1 , wherein the herpesvirus is grown using serum-free media.
14. The composition of claim 1 , wherein the composition is a pharmaceutical composition.
15. The composition of claim 14 , wherein the composition is a vaccine.
16. A kit comprising a first container containing the composition of claim 1 and a second container containing an aqueous solution for reconstituting the composition in the dried form.
17. A composition consisting of:
a live, attenuated or genetically modified herpes simplex virus type-2 (HSV-2) or herpes simplex virus type-1 (HSV-1),
1 mM to 50 mM histidine or glutamine,
sucrose or trehalose,
sodium chloride, and
glutamate, and
has a pH of about 6.5 to 7.5, wherein the composition is in a dried form.
18. The composition of claim 17 , wherein the sodium chloride is present in an amount of 10 mM to 200 mM.
19. The composition of claim 17 , wherein the histidine is present in an amount of 5 mM to 20 mM.
20. The composition of claim 17 , wherein the glutamate is present in an amount of 1 mM to 100 mM.
21. The composition of claim 17 , wherein the glutamate is selected from the group consisting of: potassium glutamate, mono sodium glutamate, and sodium glutamate.
22. The composition of claim 1 , wherein the histidine is present in an amount of 5 mM to 20 mM, the sucrose is present in an amount of 5% to 10% w/v, and the glutamate is present in an amount of 25 mM to 75 mM.
23. The composition of claim 22 , wherein the sodium chloride is present in an amount of 80 to 160 mM.
24. The composition of claim 23 , wherein the glutamate is potassium glutamate.
25. The composition of claim 24 , wherein the HSV-1 or HSV-2 contains less than 10 ng of host cell DNA per 1×10 7 pfu/mL.
26. The composition of claim 6 , wherein the histidine is present in an amount of 5 mM to 20 mM histidine, the sucrose is present in an amount of 5% to 10% w/v, and the potassium glutamate is present in an amount of 25 mM to 75 mM.
27. The composition of claim 26 , wherein the sodium chloride is present in an amount of 80 to 160 mM.
28. The composition of claim 27 , wherein the HSV-1 or HSV-2 contains less than 10 ng of host cell DNA per 1×10 7 pfu/mL.
29. A composition consisting of:
a live, attenuated or genetically modified herpes simplex virus type-2 (HSV-2) or herpes simplex virus type-1 (HSV-1),
about 10 mM histidine,
about 10% w/v sucrose or trehalose, sodium chloride, and
about 50 mM glutamate, and has a pH of about 6.5 to 7.5, wherein the composition is in a dried form.
30. A composition of claim 17 , wherein viral titres in the composition are between 10 7 to 10 5 pfu/mL before drying.
31. A composition of claim 30 , wherein viral titres in the composition are between 10 7 to 10 5 pfu/mL before drying.