Patents Assigned to Relypsa, Inc.
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Patent number: 10272103Abstract: The present invention provides a crosslinked amine and amide polymers effective for binding and removing bile salts from the gastrointestinal tract. These bile acid binding polymers or pharmaceutical compositions thereof can be administered to subjects to treat various conditions, including hypercholesteremia, diabetes, pruritis, irritable bowel syndrome-diarrhea (IBS-D), bile acid malabsorption, and the like.Type: GrantFiled: October 30, 2015Date of Patent: April 30, 2019Assignee: Relypsa, Inc.Inventors: Jordan Kopping, Paul Mansky, YongQi Mu, Michael James Cope, Elizabeth Goka, Angela Lee, Deidre Madsen, Jun Shao, Kalpesh Biyani, Eric Connor, Scott Hecker, Inez Lees, Grace May, Faleh Salaymeh, Hongmin Zhang, David Bergbreiter
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Patent number: 10058567Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.Type: GrantFiled: March 14, 2016Date of Patent: August 28, 2018Assignee: Relypsa, Inc.Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen, Gerrit Klaerner, Jerry Buysse
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Patent number: 9925212Abstract: The present invention generally relates to methods of treating hypertension (HTN) in patients in need thereof wherein the patient optionally further suffers from chronic kidney disease (CKD) or Type II diabetes mellitus (T2DM). The invention also relates to methods of treating hyperkalemia in a patient in need thereof, wherein the patient suffers from CKD, T2DM or HTN and are optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The invention also relates to methods of treating kidney disease in a patient in need thereof, wherein the patient is optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The methods can comprise administering an effective amount of a potassium-binding agent to the patient to lower the patient's blood pressure and/or increase or stabilize the patient's kidney function.Type: GrantFiled: October 6, 2016Date of Patent: March 27, 2018Assignee: Relypsa, Inc.Inventors: Gerrit Klaerner, Lance Berman
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Patent number: 9908951Abstract: The present invention generally relates to processes for converting an ester group to an acid group for polymers having a pendant ester of an acid group. This process is generally performed using an aqueous strong base.Type: GrantFiled: September 26, 2016Date of Patent: March 6, 2018Assignee: Relypsa, Inc.Inventors: Eric Connor, Faleh Salaymeh
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Patent number: 9738584Abstract: The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent.Type: GrantFiled: October 6, 2016Date of Patent: August 22, 2017Assignee: Relypsa, Inc.Inventor: YongQi Mu
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Patent number: 9655920Abstract: The present invention provides crosslinked amine polymers effective for binding and removing bile salts from the gastrointestinal tract. These bile acid binding polymers or pharmaceutical compositions thereof can be administered to subjects to treat various conditions, including hypercholesteremia, diabetes, pruritus, irritable bowel syndrome-diarrhea (IBS-D), bile acid malabsorption, and the like.Type: GrantFiled: February 24, 2011Date of Patent: May 23, 2017Assignee: Relypsa, Inc.Inventors: Eric Connor, Kalpesh Biyani, Scott Hecker, Inez Lees, Paul Mansky, YongQi Mu, Faleh Salaymeh, Hongmin Zhang, David Bergbreiter, Grace Huynh, Michael James Cope, Elizabeth Goka, Angela Lee, Deidre Madsen, Jun Shao, Xinnan Zhang
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Patent number: 9492476Abstract: The present invention generally relates to methods of treating hypertension (HTN) in patients in need thereof wherein the patient optionally further suffers from chronic kidney disease (CKD) or Type II diabetes mellitus (T2DM). The invention also relates to methods of treating hyperkalemia in a patient in need thereof, wherein the patient suffers from CKD, T2DM or HTN and are optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The invention also relates to methods of treating kidney disease in a patient in need thereof, wherein the patient is optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The methods can comprise administering an effective amount of a potassium-binding agent to the patient to lower the patient's blood pressure and/or increase or stabilize the patient's kidney function.Type: GrantFiled: December 23, 2014Date of Patent: November 15, 2016Assignee: Relypsa, Inc.Inventors: Gerrit Klaerner, Lance Berman
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Patent number: 9464040Abstract: The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent.Type: GrantFiled: June 17, 2015Date of Patent: October 11, 2016Assignee: Relypsa, Inc.Inventor: YongQi Mu
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Patent number: 9453092Abstract: The present invention generally relates to processes for converting an ester group to an acid group for polymers having a pendant ester of an acid group. This process is generally performed using an aqueous strong base.Type: GrantFiled: June 27, 2012Date of Patent: September 27, 2016Assignee: Relypsa, Inc.Inventors: Eric Connor, Faleh Salaymeh
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Patent number: 9301974Abstract: The present invention provides methods and compositions for the treatment of ion imbalances using core-shell composites and compositions comprising such core-shell composites. In particular, the invention provides core-shell particles and compositions comprising potassium binding polymers, and core-shell particles and compositions comprising sodium binding polymers, and in each case, pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are also disclosed. The compositions and methods of the invention offer improved approaches for treatment of hyperkalemia and other indications related to potassium ion homeostasis, and for treatment of hypertension and other indicates related to sodium ion homeostasis.Type: GrantFiled: October 15, 2013Date of Patent: April 5, 2016Assignee: Relypsa, Inc.Inventors: Michael J. Cope, Paul Mansky, Futian Liu, Han-Ting Chang, Dominique Charmot, Eric Connor, Kalpesh Biyani, Mingjun Liu, Tony Kwok-Kong Mong, Yan Chen
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Publication number: 20160051576Abstract: The present invention provides a crosslinked amine and amide polymers effective for binding and removing bile salts from the gastrointestinal tract. These bile acid binding polymers or pharmaceutical compositions thereof can be administered to subjects to treat various conditions, including hypercholesteremia, diabetes, pruritis, irritable bowel syndrome-diarrhea (IBS-D), bile acid malabsorption, and the like.Type: ApplicationFiled: October 30, 2015Publication date: February 25, 2016Applicant: RELYPSA, INC.Inventors: Jordan Kopping, Kalpesh Biyani, Eric Connor, Scott Hecker, Inez Lees, Grace Huynh, Faleh Salaymeh, Hongmin Zhang, David Bergbreiter, Paul Mansky, YongQi Mu, Michael James Cope, Elizabeth Goka, Angela Lee, Deidre Madsen, Jun Shao
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Patent number: 9228028Abstract: The present invention is directed to processes for making a crosslinked cation exchange polymer comprising a fluoro group and an acid group. The process allows the polymer to be efficiently made on a commercial scale, and the polymers are useful to bind potassium in the gastrointestinal tract of a human or animal subject.Type: GrantFiled: March 18, 2011Date of Patent: January 5, 2016Assignee: Relypsa, Inc.Inventor: George Tyson
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Patent number: 9181364Abstract: The present invention provides a crosslinked amine and amide polymers effective for binding and removing bile salts from the gastrointestinal tract. These bile acid binding polymers or pharmaceutical compositions thereof can be administered to subjects to treat various conditions, including hypercholesteremia, diabetes, pruritis, irritable bowel syndrome-diarrhea (IBS-D), bile acid malabsorption, and the like.Type: GrantFiled: February 24, 2011Date of Patent: November 10, 2015Assignee: Relypsa, Inc.Inventors: Jordan Kopping, Kalpesh Biyani, Eric Connor, Scott Hecker, Inez Lees, Grace Huynh, Faleh Salaymeh, Hongmin Zhang, David Bergbreiter, Paul Mansky, YongQi Mu, Michael James Cope, Elizabeth Goka, Angela Lee, Deidre Madsen, Jun Shao
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Patent number: 9061990Abstract: The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent.Type: GrantFiled: June 27, 2012Date of Patent: June 23, 2015Assignee: Relypsa, Inc.Inventor: YongQi Mu
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Publication number: 20140356316Abstract: The present invention provides crosslinked amine polymers effective for binding and removing bile salts from the gastrointestinal tract. These bile acid binding polymers or pharmaceutical compositions thereof can be administered to subjects to treat various conditions, including hypercholesteremia, diabetes, pruritus, irritable bowel syndrome-diarrhea (IBS-D), bile acid malabsorption, and the like.Type: ApplicationFiled: February 24, 2011Publication date: December 4, 2014Applicant: RELYPSA, INC.Inventors: Eric Connor, Kalpesh Biyani, Scott Hecker, Inez Lees, Grace Huynh, Faleh Salaymeh, Hongmin Zhang, David Bergbreiter, Paul Mansky, YongQi Mu, Michael James Cope, Elizabeth Goka, Angela Lee, Deidre Madsen, Jun Shao, Xinnan Zhang
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Patent number: 8889115Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.Type: GrantFiled: October 9, 2012Date of Patent: November 18, 2014Assignee: Relypsa, Inc.Inventors: Dominique Charmot, Han-Ting Chang, Gerrit Klaerner, Jerry M. Buysse, Mingjun Liu
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Publication number: 20140221681Abstract: The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent.Type: ApplicationFiled: June 27, 2012Publication date: August 7, 2014Applicant: Relypsa, Inc.Inventor: YongQi Mu
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Patent number: 8778324Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.Type: GrantFiled: October 9, 2012Date of Patent: July 15, 2014Assignee: Relypsa, Inc.Inventors: Dominique Charmot, Han-Ting Chang, Mingjun Liu, Gerrit Klaerner
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Publication number: 20140171595Abstract: The present invention generally relates to processes for converting an ester group to an acid group for polymers having a pendant ester of an acid group. This process is generally performed using an aqueous strong base.Type: ApplicationFiled: June 27, 2012Publication date: June 19, 2014Applicant: Relypsa, Inc.Inventors: Eric Connor, Faleh Salaymeh
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Publication number: 20140105848Abstract: The present invention generally relates to methods of treating hypertension (HTN) in patients in need thereof wherein the patient optionally further suffers from chronic kidney disease (CKD) or Type II diabetes mellitus (T2DM). The invention also relates to methods of treating hyperkalemia in a patient in need thereof, wherein the patient suffers from CKD, T2DM or HTN and are optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The invention also relates to methods of treating kidney disease in a patient in need thereof, wherein the patient is optionally being treated with an effective amount of a renin-angiotensin-aldosterone system (RAAS) agent. The methods can comprise administering an effective amount of a potassium-binding polymer to the patient to lower the patient's blood pressure and/or increase or stabilize the patient's kidney function.Type: ApplicationFiled: October 8, 2013Publication date: April 17, 2014Applicant: Relypsa, Inc.Inventors: Gerrit Klaerner, Lance Berman