Patents by Inventor Gerardo M. Castillo

Gerardo M. Castillo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230248800
    Abstract: The present disclosure provides novel V1a partial agonists for partially activating a V1a receptor. The partial V1a agonist has a therapeutic index of at least 20 (e.g., at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90, at least 100). Also provided are method of treating liver fibrosis, cirrhosis, portal hypertension, ascites, esophageal varices, fundal varices, bleeding, arterial hypotension, and/or hepatorenal syndrome, including administering to a subject in need thereof a therapeutically effective dose of a composition including the V1a partial agonist(s) of the present disclosure, optionally in combination with a V2 antagonist.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 10, 2023
    Inventors: Han Jiang, Yao Yao, Gerardo M. Castillo, Akiko Nishimoto-Ashfield, Christian Ventocilla, Elijah Bolotin
  • Patent number: 10882961
    Abstract: Provided herein is a process of preparing a semi-random graft co-polymer, the product of which is difficult to fully characterize chemically. The product of the present disclosure has unique and useful properties of 1) binding to a peptide and 2) upon co-administration of the product and the peptide into animals the product prolongs the blood circulation time and elevates the level of the peptide, compared to the peptide alone without the product of the disclosure.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: January 5, 2021
    Assignee: PharmalN Corporation
    Inventors: Cynthia C. Jones, Joshua F. Alfaro, Gerardo M. Castillo
  • Publication number: 20200254100
    Abstract: The present invention is directed to compositions comprising a polymer backbone with protective chain and anionic groups, and a cationic therapeutic agent. The present invention is directed to compositions for treating infections, inflammatory diseases, excess growth, and damaged cells and organs.
    Type: Application
    Filed: March 25, 2020
    Publication date: August 13, 2020
    Applicant: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin, Akiko Nashimoto-Ashfield
  • Patent number: 10624966
    Abstract: The present invention is directed to compositions comprising a polymer backbone with protective chain and anionic groups, and a cationic therapeutic agent. The present invention is directed to compositions for treating infections, inflammatory diseases, excess growth, and damaged cells and organs.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: April 21, 2020
    Assignee: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin, Akiko Nashimoto-Ashfield
  • Publication number: 20200017567
    Abstract: This disclosure provides a natriuretic peptide derivative of Formula (I), and to compositions including a natriuretic peptide derivative of Formula (I), (fatty acyl)z-(B)x-(G)y-NP?? (I), wherein: z is 1, x is an integer from 2 to 4 and y is 3; or z is 0, x is an integer from 0 to 4 and y is an integer from 1 to 3; fatty acyl comprises from 12 to 24 (e.g., 12 to 18) carbons atoms; B is lysine or arginine; G is glycine; NP is a natriuretic peptide; if present, (fatty acyl)z- is covalently linked to the N-terminus of (B)x; (fatty acyl)z-(B)x- is covalently linked to the N-terminus of (G)y; and (fatty acyl)z-(B)x-(G)y- is covalently linked to the N-terminus of NP. The natriuretic peptide derivative according to the disclosure, and compositions thereof, are useful in the treatment of diseases such as hypertension, vascular congestion, and heart disease.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 16, 2020
    Applicant: PharmaIn Corporation
    Inventors: Gerardo M. Castillo, Akiko Nishimoto-Ashfield, Elijah M. Bolotin
  • Patent number: 10507248
    Abstract: The present invention relates, in part, to a biocompatible hydrophobic-core carrier comprising a carrier, and a plurality of hydrophobic groups covalently linked to the polymeric carrier. The hydrophobic groups are capable of dissociably linking load molecules such as therapeutic agents. The hydrophobic-core carrier may also comprise protective side chains, orienting molecules, and targeting molecules.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: December 17, 2019
    Assignee: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin
  • Publication number: 20180312642
    Abstract: Provided herein is a process of preparing a semi-random graft co-polymer, the product of which is difficult to fully characterize chemically. The product of the present disclosure has unique and useful properties of 1) binding to a peptide and 2) upon co-administration of the product and the peptide into animals the product prolongs the blood circulation time and elevates the level of the peptide, compared to the peptide alone without the product of the disclosure.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 1, 2018
    Applicant: PharmaIN Corporation
    Inventors: Cynthia C. Jones, Joshua F. Alfaro, Gerardo M. Castillo
  • Patent number: 10035885
    Abstract: Provided herein is a process of preparing a semi-random graft co-polymer, the product of which is difficult to fully characterize chemically. The product of the present disclosure has unique and useful properties of 1) binding to a peptide and 2) upon co-administration of the product and the peptide into animals the product prolongs the blood circulation time and elevates the level of the peptide, compared to the peptide alone without the product of the disclosure.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: July 31, 2018
    Assignee: PharmaIN Corporation
    Inventors: Cynthia C. Jones, Joshua F. Alfaro, Gerardo M. Castillo
  • Patent number: 10010613
    Abstract: The present invention is directed to compositions comprising a polymer backbone with protective chain and anionic groups, and a cationic therapeutic agent. The present invention is directed to compositions for treating infections, inflammatory diseases, excess growth, and damaged cells and organs.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: July 3, 2018
    Assignee: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin, Akiko Nashimoto-Ashfield
  • Publication number: 20170368190
    Abstract: The present invention relates, in part, to a biocompatible hydrophobic-core carrier comprising a carrier, and a plurality of hydrophobic groups covalently linked to the polymeric carrier. The hydrophobic groups are capable of dissociably linking load molecules such as therapeutic agents. The hydrophobic-core carrier may also comprise protective side chains, orienting molecules, and targeting molecules.
    Type: Application
    Filed: August 9, 2017
    Publication date: December 28, 2017
    Applicant: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin
  • Patent number: 9737615
    Abstract: The present invention relates, in part, to a biocompatible hydrophobic-core carrier comprising a carrier, and a plurality of hydrophobic groups covalently linked to the polymeric carrier. The hydrophobic groups are capable of dissociably linking load molecules such as therapeutic agents. The hydrophobic-core carrier may also comprise protective side chains, orienting molecules, and targeting molecules.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: August 22, 2017
    Assignee: PharmalN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin
  • Patent number: 9657078
    Abstract: The invention describes compositions of peptide analogs that are active in blood or cleavable in blood to release an active peptide. The peptide analogs have a general formula: A-(Cm)x-Peptide (SEQ ID NO: 76), wherein A is hydrophobic moiety or a metal binding moiety, e.g., a chemical group or moiety containing 1) an alkyl group having 6 to 36 carbon units, 2) a nitrilotriacetic acid group, 3) an imidiodacetic acid group, or 4) a moiety of formula (ZyHisw)p (SEQ ID NO: 50), wherein Z is any amino acid residue other than histidine, His is histidine, y is an integer from 0-6; w is an integer from 1-6; and p is an integer from 1-6; wherein if A has alkyl group with 6 to 36 carbon units x is greater than 0; and Cm is a cleavable moiety consisting of glycine or alanine or lysine or arginine or N-Arginine or N-lysine, wherein x is an integer between 0-6 and N may be any amino acid or none. The peptide analogs are complexed with polymeric carrier to provide enhanced half-life.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: May 23, 2017
    Assignee: PHARMAIN CORPORATION
    Inventors: Gerardo M. Castillo, Elijah Bolotin
  • Patent number: 9562111
    Abstract: The present invention relates to a soluble hydrophobic-core carrier composition comprising (i) a linear polymeric backbone; (ii) a plurality of hydrophilic polymeric protective chains covalently linked and pendant to the polymeric backbone and (iii) at least one hydrophobic moiety covalently linked and pendant to the polymeric backbone. In certain embodiments, the weight ratio of hydrophilic protective chains to hydrophobic moieties in the carrier is at least 15:1. In other embodiments, at least 90% of the residues of the polymeric backbone are coupled to a hydrophilic polymeric protective chain or a hydrophobic moiety. In other embodiments, the composition further comprises (iv) a hydrophobic load molecule dissociably linked to the hydrophobic moiety of the carrier.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: February 7, 2017
    Assignee: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah Bolotin
  • Publication number: 20160362523
    Abstract: Provided herein is a process of preparing a semi-random graft co-polymer, the product of which is difficult to fully characterize chemically. The product of the present disclosure has unique and useful properties of 1) binding to a peptide and 2) upon co-administration of the product and the peptide into animals the product prolongs the blood circulation time and elevates the level of the peptide, compared to the peptide alone without the product of the disclosure.
    Type: Application
    Filed: November 3, 2015
    Publication date: December 15, 2016
    Applicant: PharmaIN Corporation
    Inventors: Cynthia C. JONES, Joshua F. ALFARO, Gerardo M. CASTILLO
  • Publication number: 20150307578
    Abstract: The invention describes compositions of peptide analogs that are active in blood or cleavable in blood to release an active peptide. The peptide analogs have a general formula: A-(Cm)x-Peptide (SEQ ID NO: 76), wherein A is hydrophobic moiety or a metal binding moiety, e.g., a chemical group or moiety containing 1) an alkyl group having 6 to 36 carbon units, 2) a nitrilotriacetic acid group, 3) an imidiodacetic acid group, or 4) a moiety of formula (ZyHisw)p (SEQ ID NO: 50), wherein Z is any amino acid residue other than histidine, His is histidine, y is an integer from 0-6; w is an integer from 1-6; and p is an integer from 1-6; wherein if A has alkyl group with 6 to 36 carbon units x is greater than 0; and Cm is a cleavable moiety consisting of glycine or alanine or lysine or arginine or N-Arginine or N-lysine, wherein x is an integer between 0-6 and N may be any amino acid or none. The peptide analogs are complexed with polymeric carrier to provide enhanced half-life.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 29, 2015
    Applicant: PHARMAIN CORPORATION
    Inventors: Gerardo M. Castillo, Elijah Bolotin
  • Publication number: 20150284476
    Abstract: The present invention relates to a soluble hydrophobic-core carrier composition comprising (i) a linear polymeric backbone; (ii) a plurality of hydrophilic polymeric protective chains covalently linked and pendant to the polymeric backbone and (iii) at least one hydrophobic moiety covalently linked and pendant to the polymeric backbone. In certain embodiments, the weight ratio of hydrophilic protective chains to hydrophobic moieties in the carrier is at least 15:1. In other embodiments, at least 90% of the residues of the polymeric backbone are coupled to a hydrophilic polymeric protective chain or a hydrophobic moiety. In other embodiments, the composition further comprises (iv) a hydrophobic load molecule dissociably linked to the hydrophobic moiety of the carrier.
    Type: Application
    Filed: February 20, 2015
    Publication date: October 8, 2015
    Applicant: PHARMAIN CORPORATION
    Inventors: Gerardo M. Castillo, Elijah Bolotin
  • Patent number: 9090664
    Abstract: The invention describes compositions of peptide analogs that are active in blood or cleavable in blood to release an active peptide. The peptide analogs have a general formula: A-(Cm)x-Peptide (SEQ ID NO: 76), wherein A is hydrophobic moiety or a metal binding moiety, e.g., a chemical group or moiety containing 1) an alkyl group having 6 to 36 carbon units, 2) a nitrilotriacetic acid group, 3) an imidodiacetic acid group, or 4) a moiety of formula (ZyHisw)p (SEQ ID NO: 50), wherein Z is any amino acid residue other than histidine, His is histidine, y is an integer from 0-6; w is an integer from 1-6; and p is an integer from 1-6; wherein if A has alkyl group with 6 to 36 carbon units x is greater than 0; and Cm is a cleavable moiety consisting of glycine or alanine or lysine or arginine or N-Arginine or N-lysine, wherein x is an integer between 0-6 and N may be any amino acid or none. The peptide analogs are complexed with polymeric carrier to provide enhanced half-life.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 28, 2015
    Assignee: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin
  • Patent number: 8999930
    Abstract: The present invention relates to a soluble hydrophobic-core carrier composition comprising (i) a linear polymeric backbone; (ii) a plurality of hydrophilic polymeric protective chains covalently linked and pendant to the polymeric backbone and (iii) at least one hydrophobic moiety covalently linked and pendant to the polymeric backbone. In certain embodiments, the weight ratio of hydrophilic protective chains to hydrophobic moieties in the carrier is at least 15:1. In other embodiments, at least 90% of the residues of the polymeric backbone are coupled to a hydrophilic polymeric protective chain or a hydrophobic moiety. In other embodiments, the composition further comprises (iv) a hydrophobic load molecule dissociably linked to the hydrophobic moiety of the carrier.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: April 7, 2015
    Assignee: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin
  • Publication number: 20140154203
    Abstract: The present invention relates, in part, to a biocompatible hydrophobic-core carrier comprising a carrier, and a plurality of hydrophobic groups covalently linked to the polymeric carrier. The hydrophobic groups are capable of dissociably linking load molecules such as therapeutic agents. The hydrophobic-core carrier may also comprise protective side chains, orienting molecules, and targeting molecules.
    Type: Application
    Filed: November 22, 2013
    Publication date: June 5, 2014
    Applicant: PharmaIN Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin
  • Publication number: 20140051628
    Abstract: The invention describes compositions of peptide analogs that are active in blood or cleavable in blood to release an active peptide. The peptide analogs have a general formula: A-(Cm)x-Peptide (SEQ ID NO: 76), wherein A is hydrophobic moiety or a metal binding moiety, e.g., a chemical group or moiety containing 1) an alkyl group having 6 to 36 carbon units, 2) a nitrilotriacetic acid group, 3) an imidodiacetic acid group, or 4) a moiety of formula (ZyHisw)p (SEQ ID NO: 50), wherein Z is any amino acid residue other than histidine, His is histidine, y is an integer from 0-6; w is an integer from 1-6; and p is an integer from 1-6; wherein if A has alkyl group with 6 to 36 carbon units x is greater than 0; and Cm is a cleavable moiety consisting of glycine or alanine or lysine or arginine or N-Arginine or N-lysine, wherein x is an integer between 0-6 and N may be any amino acid or none. The peptide analogs are complexed with polymeric carrier to provide enhanced half-life.
    Type: Application
    Filed: July 26, 2013
    Publication date: February 20, 2014
    Applicant: Pharmaln Corporation
    Inventors: Gerardo M. Castillo, Elijah M. Bolotin