Concentrated protein lyophilates, methods, and uses
The invention provides, among other things, lyophilized compositions of high surface area that comprise a protein and that reconstitute quickly and efficiently to solution of high protein concentration with minimal formation, if any, of foam, effervescence, bubbles, turbidity, or particulates that might be deleterious. The invention also provides, among other things, methods for making the lyophilized compositions. The invention in additional aspects also provides Raman Imaging Spectrographic methods for real time analyses of polymorphs in a sample using PLS algorithms. By way of particular example, the use of the method for the analysis of mannitol polymorphs is described, and the use of the analysis to determine optimum compositions and lyophilization methods for producing lyophilates of pharmaceutical proteins having a predefined distribution of mannitol polymorphs and having the aforementioned reconstitution properties is also described.
1. A lyophilate comprising a protein and mannitol, wherein the mannitol is comprised of at least 70% delta mannitol, not more than 20% mannitol hydrate, and not more than 10% amorphous mannitol, wherein the surface area of the lyophilate is equal to or greater than 1.2 m 2 /g.
2. A lyophilate according to claim 1 , wherein the mannitol is comprised of at least 70% delta mannitol, not more than 10% amorphous mannitol, and not more than 20% mannitol hydrate plus alpha mannitol plus beta mannitol, wherein the surface area of the lyophilate is equal to or greater than 1.2 m 2 /g.
3. A lyophilate according to claim 1 or 2 further comprising sucrose.
4. A lyophilate according to claim 1 or 2 further comprising a surfactant.
5. A lyophilate according to claim 4 wherein the surfactant is a polysorbate or Pluronic F68 or both.
6. A lyophilate according to claim 1 or 2 further comprising one or more of a stabilizing agent, a lyoprotectant, or a surfactant.
7. A lyophilate according to claim 1 or 2 , wherein the protein is an antibody, or a variant, derivative, fragment, or mimetic thereof.
8. A lyophilate according to claim 7 , wherein the antibody is a human or humanized antibody, or a variant, derivative, fragment, or mimetic thereof.
9. A lyophilate according to claim 8 , wherein the antibody is a human or humanized antibody.
10. A lyophilate according to claim 1 or 2 , wherein the protein comprises a region of a human or humanized antibody, or a variant, derivative, fragment, or mimetic thereof.
11. A lyophilate according to claim 10 wherein the region is a Fc region, or a variant, derivative, fragment, or mimetic thereof.
12. A lyophilate according to claim 11 wherein the region is a Fc region.
13. A lyophilate according to claim 1 or 2 , wherein the protein is a fusion protein comprising a Fc region, or a variant, derivative, fragment, or mimetic thereof; and a ligand-binding moiety of a ligand binding protein, or a variant, derivative, fragment, or mimetic thereof.
14. A lyophilate according to claim 13 wherein the protein is a fusion protein comprising a Fc region and a ligand-binding moiety of a ligand binding protein.
15. A lyophilate according to claim 13 wherein the ligand binding moiety is a TNF binding moiety of a TNF receptor, or a variant, derivative, fragment, or mimetic thereof; or an IL-1 binding moiety of a protein ligand of an IL-1 receptor, or a variant, derivative, fragment, or mimetic thereof.
16. A lyophilate according to claim 1 or 2 , wherein the protein is a peptibody.