Parathyroid hormone variants
The invention relates to parathyroid hormone (PTH) variants and pharmaceutical compositions comprising same. The invention further relates to PTH compositions with improved serum half-life and peak-trough ratios, and methods of controlling serum calcium levels with the PTH variants and compositions of the invention. The invention further relates to methods of treating hypoparathyroidism and/or hypocalcemia due to hypoparathyroidism with the PTH variants and compositions of the invention.
1. A method of increasing serum calcium levels in a subject in need thereof comprising administering to the subject an effective amount of a parathyroid hormone (PTH)-Fc fusion protein, wherein the PTH-Fc fusion protein is PTH-66 having the amino acid sequence of SEQ ID NO: 8.
2. The method of claim 1 , wherein the subject has hypoparathyroidism.
3. The method of claim 1 , wherein the PTH-Fc fusion protein is administered subcutaneously.
4. The method of claim 1 , wherein the PTH-Fc fusion protein is administered once daily.
5. The method of claim 1 , wherein the PTH-Fc fusion protein is administered once weekly.
6. The method of claim 1 , wherein the PTH-Fc fusion protein is provided to the subject in an amount from about 20 μg per day to about 100 μg per day of the PTH-Fc fusion protein.
7. The method of claim 1 , wherein the PTH-Fc fusion protein is glycosylated.
8. A method of increasing serum calcium levels in a subject in need thereof comprising administering to the subject an effective amount of a pharmaceutical composition comprising a PTH-Fc fusion protein, wherein the PTH-Fc fusion protein is PTH-66 having the amino acid sequence of SEQ ID NO: 8.
9. The method of claim 8 , wherein the pharmaceutical composition is administered subcutaneously.
10. The method of claim 8 , wherein the pharmaceutical composition is administered once daily.
11. The method of claim 8 , wherein the pharmaceutical composition is administered once weekly.
12. The method of claim 8 , wherein the PTH-Fc fusion protein is glycosylated.
13. A method of increasing serum calcium levels in a subject in need thereof comprising administering to the subject an effective amount of a pharmaceutical dosage form comprising a PTH-Fc fusion protein, wherein the PTH-Fc fusion protein is PTH-66 having the amino acid sequence of SEQ ID NO: 8.
14. The method of claim 13 , wherein the pharmaceutical dosage form is administered subcutaneously.
15. The method of claim 13 , wherein the pharmaceutical dosage form is administered once daily.
16. The method of claim 13 , wherein the pharmaceutical dosage form is administered once weekly.
17. The method of claim 13 , wherein the pharmaceutical dosage form is a liquid dosage form suitable for administration by injection or infusion.