Polymer-factor IX moiety conjugates
View Patent ↗Conjugates of a Factor IX moiety and one or more water-soluble polymers are provided. Typically, the water-soluble polymer is poly(ethylene glycol) or a derivative thereof. Also provided (among other things) are compositions comprising the conjugates, methods of making the conjugates, and methods of administering to a patient compositions comprising the conjugates.
1. A conjugate comprising a Factor IX moiety covalently attached, either directly or through a spacer moiety comprised of one or more atoms, to at least one nonpeptidic, water-soluble polymer, wherein (i) the at least one nonpeptidic, water-soluble polymer has a total weight-average molecular weight in the range of from greater than 10,000 Daltons to about 85,000 Daltons, (ii) when the Factor IX moiety is covalently attached through a spacer moiety comprised of one or more atoms to the at least one nonpeptidic, water-soluble polymer, the spacer moiety does not include a sugar or carbohydrate, and (iii) not more than three nonpeptidic, water-soluble polymers are attached to the Factor IX moiety.
2. A conjugate comprising a Factor IX moiety covalently attached, either directly or through a spacer moiety comprising of one or more atoms, to a non-linear, nonpeptidic, water-soluble polymer, wherein (i) when the Factor IX moiety is covalently attached though a spacer moiety comprising one or more atoms to the non-linear, nonpeptidic, water-soluble polymer, the spacer moiety does not include a sugar or carbohydrate, and (ii) not more than three nonpeptidic, water-soluble polymers are attached to the Factor IX moiety.
3. The conjugate of claim 1 or 2 , wherein each water-soluble polymer in the conjugate is selected from the group consisting of a poly(alkylene oxide), poly(vinyl pyrrolidone), poly(vinyl alcohol), polyoxazoline, and poly(acryloylmorpholine).
4. The conjugate of claim 3 , wherein each water-soluble polymer is a poly(alkylene oxide).
5. The conjugate of claim 4 , wherein each poly(alkylene oxide) is a poly(ethylene glycol).
6. The conjugate of claim 5 , wherein the poly(ethylene glycol) is terminally capped with an end-capping moiety selected from the group consisting hydroxy, alkoxy, substituted alkoxy, alkenoxy, substituted alkenoxy, alkynoxy, substituted alkynoxy, aryloxy and substituted aryloxy.
7. The conjugate of claim 5 , wherein the poly(ethylene glycol) is terminally capped with methoxy.
8. The conjugate of claim 2 , wherein the water-soluble polymer has a total weight-average molecular weight in the range of from greater than 5,000 Daltons to about 150,000 Daltons.
9. The conjugate of claim 8 , wherein the poly(ethylene glycol) has a total weight-average molecular weight in the range of from about 6,000 Daltons to about 100,000 Daltons.
10. The conjugate of claim 9 , wherein the poly(ethylene glycol) has a total weight-average molecular weight in the range of from about 10,000 Daltons to about 85,000 Daltons.
11. The conjugate of claim 5 , wherein the poly(ethylene glycol) has a total weight-average molecular weight in the range of from about 20,000 Daltons to about 85,000 Daltons.
12. The conjugate of claim 1 , wherein each water-soluble polymer is linear.
13. The conjugate of claim 1 wherein each water-soluble polymer is branched.
14. The conjugate of claim 1 or 2 , wherein the Factor IX moiety is selected from the group consisting of Factor IX, Factor IXa, and biologically active fragments, deletion variants, substitution variants or addition variants of any of the foregoing.
15. The conjugate of claim 14 , wherein the Factor IX moiety is Factor IX.
16. The conjugate of claim 15 , wherein the Factor IX moiety is Factor IXa.
17. The conjugate of claim 5 , wherein the Factor IX moiety is recombinantly derived.
18. The conjugate of claim 5 , wherein the Factor IX moiety is blood-derived.