Patents Assigned to Polyactiva Pty Ltd.
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Publication number: 20240247106Abstract: A drug-polymer conjugate, which is a copolymer of at least one monomer of formula (I): (I) where: X may be the same or different at each occurrence and represents a terminal functional group comprising an alkyne or an azide; Q is independently selected at each occurrence and may be present or absent and when present, represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon, optionally substituted aryl and optionally substituted heteroaryl; D is a releasable drug selected from prostaglandins, ?-blockers and mixtures thereof; L is a linker group group; and at least one co-monomer of Formula III III J represents a linking functional group, n is 2 to 8, preferably 3 to 8; Y comprises a polyether of formula (ORa)m wherein Ra is independently ethylene, propylene and butylene and m is from 1 to 300 (preferably 2 to 300) and the polyether is in chain with one or more groups which are preferably selected from one or more of optionally substituted straight or branched Ci toType: ApplicationFiled: July 26, 2023Publication date: July 25, 2024Applicant: POLYACTIVA PTY LTDInventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sarah Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING, Carmen Vittoria SCULLINO
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Patent number: 11787906Abstract: A drug-polymer conjugate, which is a copolymer of at least one monomer of formula (I): (I) where: X may be the same or different at each occurrence and represents a terminal functional group comprising an alkyne or an azide; Q is independently selected at each occurrence and may be present or absent and when present, represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon, optionally substituted aryl and optionally substituted heteroaryl; D is a releasable drug selected from prostaglandins, ?-blockers and mixtures thereof; L is a linker group group; and at least one co-monomer of Formula III III J represents a linking functional group, n is 2 to 8, preferably 3 to 8; Y comprises a polyether of formula (ORa)m wherein Ra is independently ethylene, propylene and butylene and m is from 1 to 300 (preferably 2 to 300) and the polyether is in chain with one or more groups which are preferably selected from one or more of optionally substituted straight or branched C1 toType: GrantFiled: March 14, 2018Date of Patent: October 17, 2023Assignee: POLYACTIVA PTY LTDInventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Jason Watling, Carmen Vittoria Scullino
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Patent number: 11696955Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.Type: GrantFiled: December 23, 2021Date of Patent: July 11, 2023Assignee: POLYACTIVA PTY LTDInventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Jason Watling
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Publication number: 20220401455Abstract: A drug-polymer conjugate, which is a copolymer of at least one monomer of formula (I) where: X may be the same or different at each occurrence and represents a terminal functional group comprising an alkyne or an azide; Q is independently selected at each occurrence and may be present or absent and when present, represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon, optionally substituted aryl and optionally substituted heteroaryl; D is a releasable bicyclic prostaglandin; L is a linker group; and at least one co-monomer of Formula III J-(Y1-A)n, J represents a linking functional group, n is 2 to 8 preferably 3 to 8; Y1 comprises a polyether of formula (ORa)m wherein Ra is independently ethylene, propylene and butylene and m is from 1 to 300 (preferably 2 to 300) and the polyether is in chain with one or more groups which are preferably selected from one or more of optionally substituted straight or branched C1 to C10 alkylene, amino, ether, ester, amide, carbonType: ApplicationFiled: September 19, 2019Publication date: December 22, 2022Applicant: POLYACTIVA PTY LTDInventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sarah Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING, Carmen Vittoria SCULLINO
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Publication number: 20220226483Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.Type: ApplicationFiled: December 23, 2021Publication date: July 21, 2022Applicant: POLYACTIVA PTY LTDInventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sarah Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING
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Patent number: 11207417Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.Type: GrantFiled: March 14, 2018Date of Patent: December 28, 2021Assignee: POLYACTIVA PTY LTDInventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Jason Watling
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Patent number: 10758626Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from quinolones, NSAIDs and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click cycloaddition chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the post-surgical care to treat or prevent infections, provide analgesia and treat inflammation.Type: GrantFiled: September 9, 2016Date of Patent: September 1, 2020Assignee: POLYACTIVA PTY LTDInventors: Stephen Lonsdale Birkett, Andrew Craig Donohue, Asha Marina D'Souza, Sarah Man Yee Ng, Adrian Sulistio, Russell John Tait, David Valade, Alan Naylor, Anton Blencowe
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Publication number: 20200121798Abstract: A polymer-prostaglandin conjugate comprising: a polymer backbone comprising a plurality of moieties of formula (I): where: T represents a triazole moiety; Q is independently selected at each occurrence and may be present or absent and when present represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon; D is selected from prostaglandins; and L is a group of formula (II) wherein R5 is selected from hydrogen and C1 to C6 alkyl; (R) indicates the end of the group bonded to the R group; and (D) indicates the end of the group attached to the group D.Type: ApplicationFiled: March 14, 2018Publication date: April 23, 2020Applicant: POLYACTIVA PTY LTDInventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sara Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING
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Publication number: 20200123322Abstract: A drug-polymer conjugate, which is a copolymer of at least one monomer of formula (I): (I) where: X may be the same or different at each occurrence and represents a terminal functional group comprising an alkyne or an azide; Q is independently selected at each occurrence and may be present or absent and when present, represents a linking group; R is selected from the group consisting of linear or branched hydrocarbon, optionally substituted aryl and optionally substituted heteroaryl; D is a releasable drug selected from prostaglandins, ?-blockers and mixtures thereof; L is a linker group group; and at least one co-monomer of Formula III III J represents a linking functional group, n is 2 to 8, preferably 3 to 8; Y comprises a polyether of formula (ORa)m wherein Ra is independently ethylene, propylene and butylene and m is from 1 to 300 (preferably 2 to 300) and the polyether is in chain with one or more groups which are preferably selected from one or more of optionally substituted straight or branched Ci toType: ApplicationFiled: March 14, 2018Publication date: April 23, 2020Applicant: POLYACTIVA PTY LTDInventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sara Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE, Alan NAYLOR, Jason WATLING, Carmen Vittoria SCULLINO
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Patent number: 10111886Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from prostaglandin analogues, .beta.-blockers and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the treatment of glaucoma.Type: GrantFiled: February 17, 2017Date of Patent: October 30, 2018Assignee: POLYACTIVA PTY LTDInventors: Sarah Man Yee Ng, Andrew Craig Donohue, Russell John Tait, Stephen Lonsdale Birkett, Adrian Sulistio, Anton Blencowe
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Patent number: 10113033Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety comprising prostaglandin analogues. The present invention also relates to methods for preparing the polymer conjugates using click chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the treatment of glaucoma.Type: GrantFiled: March 14, 2017Date of Patent: October 30, 2018Assignee: POLYACTIVA PTY LTDInventors: Sarah Man Yee Ng, Andrew Craig Donohue, Russell John Tait, Stephen Lonsdale Birkett, Adrian Sulistio, Anton Blencowe, Alan Naylor
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Publication number: 20180303948Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from quinolones, NSAIDs and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click cycloaddition chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the post-surgical care to treat or prevent infections, provide analgesia and treat inflammation.Type: ApplicationFiled: September 9, 2016Publication date: October 25, 2018Applicant: Polyactiva Pty LtdInventors: Stephen Lonsdale BIRKETT, Andrew Craig DONOHUE, Asha Marina D'SOUZA, Sara Man Yee NG, Adrian SULISTIO, Russell John TAIT, David VALADE
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Patent number: 9968684Abstract: The invention relates to polymer-drug conjugate for delivering a substituted alkanoic acid non-steroidal anti-inflammatory drug (NSAID). The invention also relates to drug delivery systems comprising the polymer-NSAID conjugate. The polymer-NSAID conjugates comprise a substituted alkanoic acid non-steroidal anti-inflammatory drug (NSAID) conjugated to a biodegradable polymer backbone by an ester linkage.Type: GrantFiled: June 26, 2013Date of Patent: May 15, 2018Assignee: POLYACTIVA PTY LTDInventors: Asha Marina D'Souza, Andrew Craig Donohue, Russell John Tait, Florian Hans Maximilian Graichen, Sarah Man Yee Ng, Adrian Sulistio
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Publication number: 20170216308Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from prostaglandin analogues, .beta.-blockers and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the treatment of glaucoma.Type: ApplicationFiled: February 17, 2017Publication date: August 3, 2017Applicant: POLYACTIVA PTY LTDInventors: Sarah Man Yee Ng, Andrew Craig DONOHUE, Russell John TAIT, Stephen Lonsdale BIRKETT, Adrian SULISTIO, Anton BLENCOWE
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Publication number: 20170182173Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety comprising prostaglandin analogues. The present invention also relates to methods for preparing the polymer conjugates using click chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the treatment of glaucoma.Type: ApplicationFiled: March 14, 2017Publication date: June 29, 2017Applicant: POLYACTIVA PTY LTDInventors: Sarah Man Yee Ng, Andrew Craig DONOHUE, Russell John TAIT, Stephen Lonsdale BIRKETT, Adrian SULISTIO, Anton BLENCOWE, Alan Naylor
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Patent number: 9572892Abstract: The present invention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from prostaglandin analogs, ?-blockers and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the treatment of glaucoma.Type: GrantFiled: March 7, 2014Date of Patent: February 21, 2017Assignee: POLYACTIVA PTY LTDInventors: Sarah Man Yee Ng, Andrew Craig Donohue, Russell John Tait, Stephen Lonsdale Birkett, Adrian Sulistio, Anton Blencowe
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Patent number: 9408919Abstract: The invention relates to a biodegradable polymer comprising a plurality of releasable bioactive moieties, the releasable bioactive moieties being pendant from and covalently bonded to the biodegradable polymer backbone, wherein the biodegradable polymer backbone is formed from monomeric units that are each coupled via a biodegradable moiety, and wherein the bioactive moieties are capable of being released at a rate equal to or faster than the rate of biodegradation of the polymer backbone.Type: GrantFiled: August 14, 2013Date of Patent: August 9, 2016Assignee: POLYACTIVA PTY LTD.Inventors: Michael Shane O'Shea, Florian Hans Maximillian Graichen, Russell John Tait, Heng Chy Taing, Justine Leigh Jeffery
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Publication number: 20160000929Abstract: The presentinvention relates in general to polymer-bioactive agent conjugates for delivering a bioactive agent to a subject. The polymer-bioactive agent conjugates contain triazole moieties in the polymer backbone and a bioactive moiety selected from prostaglandin analogues, ?-blockers and mixtures thereof. The present invention also relates to methods for preparing the polymer conjugates using click chemical reactions, to monomer-bioactive agent conjugates suitable for preparing the polymer conjugates, and to pharmaceutical products comprising the polymer conjugates for the treatment of glaucoma.Type: ApplicationFiled: March 7, 2014Publication date: January 7, 2016Applicant: POLYACTIVA PTY LTDInventors: Sarah Man Yee NG, Andrew Craig DONOHUE, Russell John TAIT, Stephen Lonsdale BIRKETT, Adrian SULISTIO, Anton BLENCOWE
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Publication number: 20140046018Abstract: The invention relates to a biodegradable polymer comprising a plurality of releasable bioactive moieties, the releasable bioactive moieties being pendant from and covalently bonded to the biodegradable polymer backbone, wherein the biodegradable polymer backbone is formed from monomeric units that are each coupled via a biodegradable moiety, and wherein the bioactive moieties are capable of being released at a rate equal to or faster than the rate of biodegradation of the polymer backbone.Type: ApplicationFiled: August 14, 2013Publication date: February 13, 2014Applicant: POLYACTIVA PTY LTD.Inventors: Michael Shane O'Shea, Florian Hans Maximillian Graichen, Russell John Tait, Heng Chy Taing, Justine Leigh Jeffery
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Patent number: 8535655Abstract: The invention relates to a biodegradable polymer comprising a plurality of releasable bioactive moieties, the releasable bioactive moieties being pendant from and covalently bonded to the biodegradable polymer backbone, wherein the biodegradable polymer backbone is formed from monomeric units that are each coupled via a biodegradable moiety, and wherein the bioactive moieties are capable of being released at a rate equal to or faster than the rate of biodegradation of the polymer backbone.Type: GrantFiled: April 8, 2011Date of Patent: September 17, 2013Assignee: Polyactiva Pty Ltd.Inventors: Michael Shane O'Shea, Florian Hans Maximilian Graichen, Russell John Tait, Heng Chy Taing, Justine Leigh Jeffery