Active agent delivery systems and methods for protecting and administering active agents
First Claim
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1. A composition comprising:
- a polypeptide; and
an active agent covalently attached to said polypeptide.
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Abstract
A composition comprising a polypeptide and an active agent covalently attached to the polypeptide. Also provided is a method for delivery of an active agent to a patient comprising administering to the patient a composition comprising a polypeptide and an active agent covalently attached to the polypeptide. Also provided is a method for protecting an active agent from degradation comprising covalently attaching the active agent to a polypeptide. Also provided is a method for controlling release of an active agent from a composition comprising covalently attaching the active agent to the polypeptide.
270 Citations
40 Claims
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1. A composition comprising:
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a polypeptide; and
an active agent covalently attached to said polypeptide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40)
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25. A method for protecting an active agent from degradation comprising covalently attaching said active agent to a polypeptide.
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26. A method for controlling release of an active agent from a composition wherein said composition comprises a polypeptide, said method comprising covalently attaching said active agent to said polypeptide.
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27. A method for delivering an active agent to a patient comprising administering to said patient a composition comprising:
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a polypeptide; and
an active agent covalently attached to said polypeptide.
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34. A method for preparing a composition comprising a polypeptide and an active agent covalently attached to said polypeptide, said method comprising the steps of:
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(a) attaching the active agent to a side chain of an amino acid to form an active agent/amino acid complex;
(b) forming an active agent/amino acid complex N-carboxyanhydride (NCA) from said active agent/amino acid complex; and
(c) polymerizing said active agent/amino acid complex N-carboxyanhydride (NCA).
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Specification