Patents Assigned to KAI Pharmaceuticals, Inc.
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Patent number: 10280198Abstract: Compounds having activity for lowering parathyroid hormone levels are described. In one embodiment, the compounds are comprised of a contiguous sequence of subunits, X1-X2-X3-X4-X5-X6-X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits provides the desired activity. Methods of using the compounds for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders are also described, and in particular, methods for lowering plasma PTH and serum calcium are provided. The compounds can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: GrantFiled: June 21, 2017Date of Patent: May 7, 2019Assignee: KAI PHARMACEUTICALS, INC.Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
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Patent number: 10077438Abstract: The disclosed invention relates to methods of modifying peptide compositions to increase stability and delivery efficiency. Specifically, the disclosed invention relates to methods to increase the stability and delivery efficiency of protein kinase C (PKC) modulatory peptide compositions. A “therapeutic peptide composition” comprises a “carrier peptide” and a “cargo peptide.” A “carrier peptide” is a peptide or amino acid sequence within a peptide that facilitates the cellular uptake of the therapeutic peptide composition. The “cargo peptide” is a PKC modulatory peptide. Peptide modifications to either the carrier peptide, the cargo peptide, or both, which are described herein increase the stability and delivery efficiency of therapeutic peptide compositions by reducing disulfide bond exchange, physical stability, reducing proteolytic degradation, and increasing efficiency of cellular uptake.Type: GrantFiled: January 8, 2016Date of Patent: September 18, 2018Assignee: KAI PHARMACEUTICALS, INC.Inventor: Derek Maclean
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Patent number: 9701712Abstract: Compounds having activity for lowering parathyroid hormone levels are described. In one embodiment, the compounds are comprised of a contiguous sequence of subunits, X1—X2—X3—X4—X5—X6—X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits provides the desired activity. Methods of using the compounds for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders are also described, and in particular, methods for lowering plasma PTH and serum calcium are provided. The compounds can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: GrantFiled: February 8, 2016Date of Patent: July 11, 2017Assignee: KAI Pharmaceuticals, Inc.Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
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Patent number: 9567370Abstract: Compounds having activity for lowering parathyroid hormone levels are described. In one embodiment, the compounds are comprised of a contiguous sequence of subunits, X1-X2-X3-X4-X5-X6-X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits provides the desired activity. Methods of using the compounds for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders are also described, and in particular, methods for lowering plasma PTH and serum calcium are provided. The compounds can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: GrantFiled: March 4, 2015Date of Patent: February 14, 2017Assignee: KAI PHARMACEUTICALS, INC.Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
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Patent number: 9278995Abstract: Compounds having activity for lowering parathyroid hormone levels are described. In one embodiment, the compounds are comprised of a contiguous sequence of subunits, X1-X2-X3-X4-X5-X6-X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits provides the desired activity. Methods of using the compounds for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders are also described, and in particular, methods for lowering plasma PTH and serum calcium are provided. The compounds can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: GrantFiled: February 18, 2013Date of Patent: March 8, 2016Assignee: KAI PHARMACEUTICALS, INC.Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
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Patent number: 9255124Abstract: The disclosed invention relates to methods of modifying peptide compositions to increase stability and delivery efficiency. Specifically, the disclosed invention relates to methods to increase the stability and delivery efficiency of protein kinase C (PKC) modulatory peptide compositions. A “therapeutic peptide composition” comprises a “carrier peptide” and a “cargo peptide.” A “carrier peptide” is a peptide or amino acid sequence within a peptide that facilitates the cellular uptake of the therapeutic peptide composition. The “cargo peptide” is a PKC modulatory peptide. Peptide modifications to either the carrier peptide, the cargo peptide, or both, which are described herein increase the stability and delivery efficiency of therapeutic peptide compositions by reducing disulfide bond exchange, physical stability, reducing proteolytic degradation, and increasing efficiency of cellular uptake.Type: GrantFiled: November 28, 2011Date of Patent: February 9, 2016Assignee: KAI PHARMACEUTICALS, INC.Inventor: Derek Maclean
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Patent number: 8999932Abstract: Compounds having activity for lowering parathyroid hormone levels are described. In one embodiment, the compounds are comprised of a contiguous sequence of subunits, X1-X2-X3-X4-X5-X6-X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits provides the desired activity. Methods of using the compounds for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders are also described, and in particular, methods for lowering plasma PTH and serum calcium are provided. The compounds can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: GrantFiled: July 29, 2010Date of Patent: April 7, 2015Assignee: KAI Pharmaceuticals, Inc.Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
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Patent number: 8987200Abstract: The present invention provides methods and kits for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders. In particular, methods for lowering serum PTH and serum calcium using polycationic calcium modulator peptides are provided. The calcium modulator peptides can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: GrantFiled: November 16, 2007Date of Patent: March 24, 2015Assignee: KAI Pharmaceuticals, Inc.Inventors: Gregory Bell, Sarah Walter, Felix Karim
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Patent number: 8969299Abstract: Methods for modulating serum phosphorus levels are described, wherein calcimimetic agents are administered to a subject in need thereof. In one embodiment, the compound is cinacalcet, and in other embodiments the compound is comprised of a contiguous sequence of subunits, X1—X2—X3—X4—X5—X6—X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits. The compound, when administered at selected times to a patient undergoing dialysis, lowers serum phosphorus levels, relative to pre-dosing levels, and achieves a sustained reduced level for a period of time after administration.Type: GrantFiled: June 8, 2012Date of Patent: March 3, 2015Assignee: KAI Pharmaceuticals, Inc.Inventors: Felix Karim, Gregory Bell
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Publication number: 20140315809Abstract: Methods for treating subjects suffering from chronic kidney disease-mineral and bone disorder or other disorders resulting in primary or secondary hyperparathyroidism are described. The methods are effective in reducing serum parathyroid hormone (PTH) levels and calcium levels in patients who undergo hemodialysis. The methods described herein are also effective in slowing the progression of kidney disease and preserving kidney function. Compositions used in the described methods are also provided and comprise calcimimetics which function as agonists of the calcium sensing receptor (CaSR).Type: ApplicationFiled: November 12, 2012Publication date: October 23, 2014Applicant: Kai Pharmaceuticals, Inc.Inventors: Sarah Walter, Gregory Bell, James E. Tomlinson
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Publication number: 20140213532Abstract: This invention provides compositions and methods for enhancing delivery of drugs and other agents across epithelial tissues, including the skin, gastrointestinal tract, pulmonary epithelium, ocular tissues and the like. The compositions and methods are also useful for delivery across endothelial tissues, including the blood brain barrier. The compositions and methods employ a delivery enhancing transporter that has sufficient guanidine or amidino sidechain moieties to enhance delivery of a compound conjugated to the reagent across one or more layers of the tissue, compared to the non-conjugated compound. The delivery-enhancing polymers include, for example, poly-arginine molecules that are preferably between about 6 and 25 residues in length.Type: ApplicationFiled: December 24, 2013Publication date: July 31, 2014Applicant: KAI PHARMACEUTICALS, INC.Inventors: Jonathan B. Rothbard, Paul A. Wender, Leo P. McGrane, Lalitha V.S. Sista, Thorsten A. Kirschberg
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Patent number: 8729010Abstract: This invention provides compositions and methods for enhancing delivery of drugs and other agents across epithelial tissues, including into and across ocular tissues and the like. The compositions and methods are also useful for delivery across endothelial tissues, including the blood brain barrier. The compositions and methods employ a delivery enhancing transporter that has sufficient guanidino or amidino sidechain moieties to enhance delivery of a compound conjugated to the reagent across one or more layers of the tissue, compared to the non-conjugated compound. The delivery-enhancing polymers include, for example, poly-arginine molecules that are preferably between about 6 and 25 residues in length.Type: GrantFiled: September 10, 2012Date of Patent: May 20, 2014Assignee: KAI Pharmaceuticals, Inc.Inventors: Jonathan B. Rothbard, Paul A. Wender, Leo P. McGrane, Lalitha V. S. Sista, Thorsten A. Kirschberg
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Publication number: 20140023632Abstract: A pharmaceutical formulation for a PKC modulatory peptide and a transport moiety comprising the aforementioned components and an anti-aggregant.Type: ApplicationFiled: August 29, 2013Publication date: January 23, 2014Applicant: Kai Pharmaceuticals, Inc.Inventor: Mike Tso-Ping Li
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Patent number: 8623833Abstract: This invention provides compositions and methods for enhancing delivery of drugs and other agents across epithelial tissues, including the skin, gastrointestinal tract, pulmonary epithelium, ocular tissues and the like. The compositions and methods are also useful for delivery across endothelial tissues, including the blood brain barrier. The compositions and methods employ a delivery enhancing transporter that has sufficient guanidino or amidino sidechain moieties to enhance delivery of a compound conjugated to the reagent across one or more layers of the tissue, compared to the non-conjugated compound. The delivery-enhancing polymers include, for example, poly-arginine molecules that are preferably between about 6 and 25 residues in length.Type: GrantFiled: June 15, 2010Date of Patent: January 7, 2014Assignee: KAI Pharmaceuticals, Inc.Inventors: Jonathan B. Rothbard, Paul A. Wender, P. Leo McGrane, Lalitha V. S. Sista, Thorsten A. Kirschberg
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Patent number: 8524673Abstract: A pharmaceutical formulation for a PKC modulatory peptide and a transport moiety comprising the aforementioned components and an anti-aggregant.Type: GrantFiled: April 21, 2010Date of Patent: September 3, 2013Assignee: KAI Pharmaceuticals, Inc.Inventor: Mike Tso-ping Li
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Patent number: 8492346Abstract: The disclosure herein relates to modified ?PKC inhibitory peptides, methods of generating such peptides, and method for using ?PKC inhibitory peptides for the treatment of pain.Type: GrantFiled: September 12, 2011Date of Patent: July 23, 2013Assignee: KAI Pharmaceuticals, Inc.Inventors: Derek Maclean, Qun Yin
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Publication number: 20130150301Abstract: Methods for modulating serum phosphorus levels are described, wherein calcimimetic agents are administered to a subject in need thereof. In one embodiment, the compound is cinacalcet, and in other embodiments the compound is comprised of a contiguous sequence of subunits, X1—X2—X3—X4—X5—X6—X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits. The compound, when administered at selected times to a patient undergoing dialysis, lowers serum phosphorus levels, relative to pre-dosing levels, and achieves a sustained reduced level for a period of time after administration.Type: ApplicationFiled: June 8, 2012Publication date: June 13, 2013Applicant: KAI Pharmaceuticals, Inc.Inventors: Felix Karim, Gregory Bell
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Publication number: 20130150297Abstract: Compounds having activity for lowering parathyroid hormone levels are described. In one embodiment, the compounds are comprised of a contiguous sequence of subunits, X1-X2-X3-X4-X5-X6-X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2-X7 subunits provides the desired activity. Methods of using the compounds for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders are also described, and in particular, methods for lowering plasma PTH and serum calcium are provided. The compounds can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: ApplicationFiled: February 18, 2013Publication date: June 13, 2013Applicant: KAI PHARMACEUTICALS, INC.Inventor: KAI PHARMACEUTICALS, INC.
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Patent number: 8377880Abstract: Compounds having activity for lowering parathyroid hormone levels are described. In one embodiment, the compounds are comprised of a contiguous sequence of subunits, X1—X2—X3—X4—X5—X6—X7, wherein the X1 subunit comprises a thiol-containing moiety and the distribution of charge on the X2—X7 subunits provides the desired activity. Methods of using the compounds for treating hyperparathyroidism, bone disease and/or hypercalcemic disorders are also described, and in particular, methods for lowering plasma PTH and serum calcium are provided. The compounds can be used to treat subjects having, for example: primary, secondary or tertiary hyperparathyroidism; hypercalcemia of malignancy; metastatic bone disease; or osteoporosis.Type: GrantFiled: February 2, 2012Date of Patent: February 19, 2013Assignee: KAI Pharmaceuticals, Inc.Inventors: Felix Karim, Amos Baruch, Derek MacLean, Kanad Das, Qun Yin
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Patent number: 8278264Abstract: This invention provides compositions and methods for enhancing delivery of drugs and other agents across epithelial tissues, including into and across ocular tissues and the like. The compositions and methods are also useful for delivery across endothelial tissues, including the blood brain barrier. The compositions and methods employ a delivery enhancing transporter that has sufficient guanidino or amidino sidechain moieties to enhance delivery of a compound conjugated to the reagent across one or more layers of the tissue, compared to the non-conjugated compound. The delivery-enhancing polymers include, for example, poly-arginine molecules that are preferably between about 6 and 25 residues in length (for example, SEQ ID NO:86).Type: GrantFiled: May 4, 2007Date of Patent: October 2, 2012Assignee: Kai Pharmaceuticals, Inc.Inventors: Jonathan B. Rothbard, Paul A. Wender, P. Leo McGrane, Lalitha V. S. Sista, Thorsten A. Kirschberg