Patent application number | Description | Published |
20080234193 | Von Willebrand factor-and factor VIII-polymer conjugates having a releasable linkage - The present invention provides von Willebrand Factor-polymer conjugates and Factor VIII-polymer conjugates, each having a releasable linkage. Methods of making conjugates, methods for administering conjugates, are also provided. | 09-25-2008 |
20100004424 | Methods for the Formation of Hydrogels Using Thiosulfonate Compositions and Uses Thereof - The present invention provides both crosslinked polymer compositions capable of forming hydrogels upon exposure to an aqueous environment and thiosulfonate hydrogel-forming components. The thiosulfonate hydrogel-forming components of the invention are preferably multi-arm thiosulfonate polymer derivatives that form a crosslinked polymer composition when exposed to a base without requiring the presence of a second cross-linking reagent, redox catalyst, or radiation. Methods for forming hydrogel compositions, as well as methods for using the hydrogels, are also provided. | 01-07-2010 |
20100069571 | Thioester-Terminated Water Soluble Polymers and Method of Modifying the N-Terminus of a Polypeptide Therewith - The invention provides reagents and methods for conjugating a polymer specifically to the α-amine of a polypeptide. The invention provides monofunctional, bifunctional, and multifunctional PEGs and related polymers having a terminal thioester moiety capable of specifically conjugating to the α-amine of a polypeptide having a cysteine or histidine residue at the N-terminus. The invention provides reactive thioester-terminated PEG polymers that have suitable reactivity with an N-terminal cysteine or histidine residue of a polypeptide to produce an amide bond between the PEG molecule and the polypeptide. | 03-18-2010 |
20100069579 | Activated Polyoxazolines and Compositions Comprising the Same - The present disclosure provides terminally activated monofunctional POZ derivatives having a range of functional active groups allowing conjugation of the monofunctional POZ derivatives to a variety of target molecules under a wide range of reaction conditions to produce a hydrolytically stable target molecule-POZ conjugate. Furthermore, the present disclosure provides novel methods of synthesis for the disclosed terminally activated monofunctional POZ derivatives and hydrolytically stable target molecule-POZ conjugates created using the disclosed terminally activated monofunctional POZ derivatives. | 03-18-2010 |
20100112607 | METHODS FOR DETERMINING ACTIVE INGREDIENTS IN PRO-DRUG PEG PROTEIN CONJUGATES WITH RELEASABLE PEG REAGENTS (IN VITRO DE-PEGYLATION) - The invention relates to the development of in vitro assay systems that force the release of a water-soluble polymer, such as polyethylene glycol (PEG) and polysialic acid (PSA), from proteins modified with a reversibly-linked water-soluble polymer. The invention includes methods for analyzing the release of the water-soluble polymer and measuring regained protein activity. The invention further includes methods appropriate for the quality control of proteins modified with releasable water-soluble polymers, including polymers like PEG and PSA. | 05-06-2010 |
20100210505 | POLYMER CONJUGATES OF GLP-1 - Conjugates of a GLP-I moiety may be covalently attached to one or more water-soluble polymers. For instance, a GLP-I polymer conjugate may include a GLP-I moiety releasably attached at its N-terminus to a water-soluble polymer. The GLP-I polymer conjugate may include a GLP-I moiety covalently attached to a water-soluble polymer, wherein the GLP-I moiety possesses an N-methyl substituent. The GLP-I polymer conjugate may include a GLP-I moiety covalently attached at a polymer attachment site to a water-soluble polymer, wherein the GLP-I moiety is glycosylated at a site separate from the polymer attachment site. | 08-19-2010 |
20100249368 | Multi-Armed Forms of Activated Polyoxazoline and Methods of Synthesis Thereof - The present disclosure provides novel POZ-2 derivatives, methods for synthesizing POZ-2 derivatives and intermediates useful in such methods. In one embodiment, the POZ-2 derivative comprises two linear POZ chains of the present disclosure linked directly or indirectly to a branching moiety that contains a functional group for linking the POZ-2 derivative to the target molecule. Target molecule-POZ-2 conjugates are also described. In certain embodiment, the POZ-2 derivatives have low polydispersity values and a decreased amount of impurities produced by unwanted side reactions, such as, but not limited to, chain transfer. | 09-30-2010 |
20100330023 | Multifunctional Forms of Polyoxazoline Copolymers and Drug Compositions Comprising the Same - The present disclosure provides copolymers of 2-substituted-2-oxazolines possessing two or three reactive functional groups which are also chemically orthogonal. The copolymers described may be random copolymers, block copolymers or a mixture of random and block copolymer configurations. Furthermore, the present disclosure provides novel methods for synthesizing the above polymers and for conjugating to molecules such as targeting, diagnostic and therapeutic agents. | 12-30-2010 |
20110021761 | Segmented Polymers and Their Conjugates - Segmented water soluble polymers, containing a higher molecular weight segment linked to a lower molecular weight segment, are described. In one embodiment, the polymer segments are poly(ethylene glycol) segments. The segmented polymers are functionalized and are useful for conjugation to various moieties such as pharmacologically active substances. Also described are conjugates of such polymers and methods of their preparation. | 01-27-2011 |
20110065862 | Thioester-Terminated Water Soluble Polymers and Method of Modifying the N-Terminus of a Polypeptide Therewith - The invention provides reagents and methods for conjugating a polymer specifically to the α-amine of a polypeptide. The invention provides monofunctional, bifunctional, and multifunctional PEGs and related polymers having a terminal thioester moiety capable of specifically conjugating to the α-amine of a polypeptide having a cysteine or histidine residue at the N-terminus. The invention provides reactive thioester-terminated PEG polymers that have suitable reactivity with an N-terminal cysteine or histidine residue of a polypeptide to produce an amide bond between the PEG molecule and the polypeptide. | 03-17-2011 |
20120027714 | Segmented Polymers and Their Conjugates - Segmented water soluble polymers, containing a higher molecular weight segment linked to a lower molecular weight segment, are described. In one embodiment, the polymer segments are poly(ethylene glycol) segments. The segmented polymers are functionalized and are useful for conjugation to various moieties such as pharmacologically active substances. Also described are conjugates of such polymers and methods of their preparation. | 02-02-2012 |
20120065330 | Thioester-Terminated Water Soluble Polymers and Method of Modifying the N-Terminus of a Polypeptide Therewith - The invention provides reagents and methods for conjugating a polymer specifically to the α-amine of a polypeptide. The invention provides monofunctional, bifunctional, and multifunctional PEGs and related polymers having a terminal thioester moiety capable of specifically conjugating to the α-amine of a polypeptide having a cysteine or histidine residue at the N-terminus. The invention provides reactive thioester-terminated PEG polymers that have suitable reactivity with an N-terminal cysteine or histidine residue of a polypeptide to produce an amide bond between the PEG molecule and the polypeptide. | 03-15-2012 |
20120088927 | Methods for the Formation of Hydrogels Using Thiosulfonate Compositions and Uses Thereof - The present invention provides both crosslinked polymer compositions capable of forming hydrogels upon exposure to an aqueous environment and thiosulfonate hydrogel-forming components. The thiosulfonate hydrogel-forming components of the invention are preferably multi-arm thiosulfonate polymer derivatives that form a crosslinked polymer composition when exposed to a base without requiring the presence of a second cross-linking reagent, redox catalyst, or radiation. Methods for forming hydrogel compositions, as well as methods for using the hydrogels, are also provided. | 04-12-2012 |
20120123055 | Multifunctional Forms of Polyoxazoline Copolymers and Drug Compositions Comprising the Same - The present disclosure provides copolymers of 2-substituted-2-oxazolines possessing two or three reactive functional groups which are also chemically orthogonal. The copolymers described may be random copolymers, block copolymers or a mixture of random and block copolymer configurations. Furthermore, the present disclosure provides novel methods for synthesizing the above polymers and for conjugating to molecules such as targeting, diagnostic and therapeutic agents. | 05-17-2012 |
20120142594 | Von Willebrand Factor- and Factor VIII-Polymer Conjugates Having a Releasable Linkage - The present invention provides von Willebrand Factor-polymer conjugates and Factor VIII-polymer conjugates, each having a releasable linkage. Methods of making conjugates, methods for administering conjugates, are also provided. | 06-07-2012 |
20120289609 | METHODS FOR THE FORMATION OF HYDROGELS USING THIOSULFONATE COMPOSITIONS AND USES THEREOF - The present invention provides both crosslinked polymer compositions capable of forming hydrogels upon exposure to an aqueous environment and thiosulfonate hydrogel-forming components. The thiosulfonate hydrogel-forming components of the invention are preferably multi-arm thiosulfonate polymer derivatives that form a crosslinked polymer composition when exposed to a base without requiring the presence of a second cross-linking reagent, redox catalyst, or radiation. Methods for forming hydrogel compositions, as well as methods for using the hydrogels, are also provided. | 11-15-2012 |
20130012442 | VON WILLEBRAND FACTOR- AND FACTOR VIII-POLYMER CONJUGATES HAVING A RELEASABLE LINKAGE - The present invention provides von Willebrand Factor-polymer conjugates and Factor VIII-polymer conjugates, each having a releasable linkage. Methods of making conjugates, methods for administering conjugates, are also provided. | 01-10-2013 |
20130096258 | POLYMER CONJUGATES OF GLP-1 - Conjugates of a GLP-1 moiety may be covalently attached to one or more water-soluble polymers. For instance, a GLP-1 polymer conjugate may include a GLP-1 moiety releasably attached at its N-terminus to a water-soluble polymer. The GLP-1 polymer conjugate may include a GLP-1 moiety covalently attached to a water-soluble polymer, wherein the GLP-1 moiety possesses an N-methyl substituent. | 04-18-2013 |
20130177521 | Subcutaneous Delivery of Poly(oxazoline) Conjugates - The present disclosure provides polymer conjugates comprising a polymer and an agent, the agent linked to the polymer via a linking group containing a hydrolyzable moiety. | 07-11-2013 |
20140011964 | Activated Polyoxazolines and Conjugates and Compositions Comprising the Same - The present disclosure provides POZ derivatives having a range of active functional groups allowing conjugation of POZ derivatives to a variety of target molecules under a wide range of reaction conditions to produce a hydrolytically stable target molecule-POZ conjugate. Furthermore, the present disclosure provides novel methods of synthesis for the disclosed POZ derivatives and hydrolytically stable target molecule-POZ conjugates created using the disclosed terminally activated monofunctional POZ derivatives. In one embodiment, the POZ derivative is a terminally activated monofunctional POZ derivative. | 01-09-2014 |
20140112880 | SUBCUTANEOUS DELIVERY OF POLY(OXAZOLINE) POLYMER CONJUGATES - The present disclosure provides polymer conjugates comprising a polymer and an agent, the agent linked to the polymer via a linking group containing a hydrolyzable moiety. | 04-24-2014 |
20140271527 | SUBCUTANEOUS DELIVERY OF POLYMER CONJUGATES OF THERAPEUTIC AGENTS - The present disclosure provides polymer conjugates comprising a polymer and an agent, the agent linked to the polymer via a linking group containing a cleavable moiety. | 09-18-2014 |
20150079658 | Activated Polyoxazolines and Conjugates and Compositions Comprising the Same - The present disclosure provides POZ derivatives having a range of active functional groups allowing conjugation of POZ derivatives to a variety of target molecules under a wide range of reaction conditions to produce a hydrolytically stable target molecule-POZ conjugate. Furthermore, the present disclosure provides novel methods of synthesis for the disclosed POZ derivatives and hydrolytically stable target molecule-POZ conjugates created using the disclosed terminally activated monofunctional POZ derivatives. In one embodiment, the POZ derivative is a terminally activated monofunctional POZ derivative. | 03-19-2015 |