Patents Assigned to KAI Pharmaceuticals, Inc.
  • Patent number: 10280198
    Abstract: 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: Grant
    Filed: June 21, 2017
    Date of Patent: May 7, 2019
    Assignee: KAI PHARMACEUTICALS, INC.
    Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
  • Patent number: 10077438
    Abstract: 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: Grant
    Filed: January 8, 2016
    Date of Patent: September 18, 2018
    Assignee: KAI PHARMACEUTICALS, INC.
    Inventor: Derek Maclean
  • Patent number: 9701712
    Abstract: 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: Grant
    Filed: February 8, 2016
    Date of Patent: July 11, 2017
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
  • Patent number: 9567370
    Abstract: 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: Grant
    Filed: March 4, 2015
    Date of Patent: February 14, 2017
    Assignee: KAI PHARMACEUTICALS, INC.
    Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
  • Patent number: 9278995
    Abstract: 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: Grant
    Filed: February 18, 2013
    Date of Patent: March 8, 2016
    Assignee: KAI PHARMACEUTICALS, INC.
    Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
  • Patent number: 9255124
    Abstract: 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: Grant
    Filed: November 28, 2011
    Date of Patent: February 9, 2016
    Assignee: KAI PHARMACEUTICALS, INC.
    Inventor: Derek Maclean
  • Patent number: 8999932
    Abstract: 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: Grant
    Filed: July 29, 2010
    Date of Patent: April 7, 2015
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Felix Karim, Amos Baruch, Derek Maclean, Kanad Das, Qun Yin
  • Patent number: 8987200
    Abstract: 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: Grant
    Filed: November 16, 2007
    Date of Patent: March 24, 2015
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Gregory Bell, Sarah Walter, Felix Karim
  • Patent number: 8969299
    Abstract: 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: Grant
    Filed: June 8, 2012
    Date of Patent: March 3, 2015
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Felix Karim, Gregory Bell
  • Publication number: 20140315809
    Abstract: 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: Application
    Filed: November 12, 2012
    Publication date: October 23, 2014
    Applicant: Kai Pharmaceuticals, Inc.
    Inventors: Sarah Walter, Gregory Bell, James E. Tomlinson
  • Publication number: 20140213532
    Abstract: 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: Application
    Filed: December 24, 2013
    Publication date: July 31, 2014
    Applicant: KAI PHARMACEUTICALS, INC.
    Inventors: Jonathan B. Rothbard, Paul A. Wender, Leo P. McGrane, Lalitha V.S. Sista, Thorsten A. Kirschberg
  • Patent number: 8729010
    Abstract: 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: Grant
    Filed: September 10, 2012
    Date of Patent: May 20, 2014
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Jonathan B. Rothbard, Paul A. Wender, Leo P. McGrane, Lalitha V. S. Sista, Thorsten A. Kirschberg
  • Publication number: 20140023632
    Abstract: A pharmaceutical formulation for a PKC modulatory peptide and a transport moiety comprising the aforementioned components and an anti-aggregant.
    Type: Application
    Filed: August 29, 2013
    Publication date: January 23, 2014
    Applicant: Kai Pharmaceuticals, Inc.
    Inventor: Mike Tso-Ping Li
  • Patent number: 8623833
    Abstract: 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: Grant
    Filed: June 15, 2010
    Date of Patent: January 7, 2014
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Jonathan B. Rothbard, Paul A. Wender, P. Leo McGrane, Lalitha V. S. Sista, Thorsten A. Kirschberg
  • Patent number: 8524673
    Abstract: A pharmaceutical formulation for a PKC modulatory peptide and a transport moiety comprising the aforementioned components and an anti-aggregant.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: September 3, 2013
    Assignee: KAI Pharmaceuticals, Inc.
    Inventor: Mike Tso-ping Li
  • Patent number: 8492346
    Abstract: 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: Grant
    Filed: September 12, 2011
    Date of Patent: July 23, 2013
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Derek Maclean, Qun Yin
  • Publication number: 20130150301
    Abstract: 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: Application
    Filed: June 8, 2012
    Publication date: June 13, 2013
    Applicant: KAI Pharmaceuticals, Inc.
    Inventors: Felix Karim, Gregory Bell
  • Publication number: 20130150297
    Abstract: 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: Application
    Filed: February 18, 2013
    Publication date: June 13, 2013
    Applicant: KAI PHARMACEUTICALS, INC.
    Inventor: KAI PHARMACEUTICALS, INC.
  • Patent number: 8377880
    Abstract: 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: Grant
    Filed: February 2, 2012
    Date of Patent: February 19, 2013
    Assignee: KAI Pharmaceuticals, Inc.
    Inventors: Felix Karim, Amos Baruch, Derek MacLean, Kanad Das, Qun Yin
  • Patent number: 8278264
    Abstract: 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: Grant
    Filed: May 4, 2007
    Date of Patent: October 2, 2012
    Assignee: Kai Pharmaceuticals, Inc.
    Inventors: Jonathan B. Rothbard, Paul A. Wender, P. Leo McGrane, Lalitha V. S. Sista, Thorsten A. Kirschberg