Patents by Inventor Kyong-Hoon Ahn

Kyong-Hoon Ahn 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).

  • Patent number: 11655279
    Abstract: The present invention relates to a method for producing an active form of a long-acting insulin analogue derivative, in which the amino acid at position 22 of the insulin B-chain is substituted from arginine (Arg) to lysine (Lys), so that the insulin analogue can be converted to an active form without cleavage of the B-chain even when it is reacted with clostripain. In a conventional method of converting pro-insulin to an active form by use of trypsin, an albumin binding domain is cleaved, making it difficult to convert the long-acting insulin analogue derivative to an active form. The production method according to the present invention overcomes this difficulty, and thus it can be effectively used for the production of a long-acting therapeutic agent for treatment of diabetes.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 23, 2023
    Assignee: DAEWOONG PHARMACEUTICAL CO., LTD.
    Inventors: Kyong Hoon Ahn, Seonkyeong Jeong, Chaeha Yoon
  • Patent number: 11566059
    Abstract: The present invention relates to long-acting insulin analogues having an increased in vivo half-life in which the amino acid at position 22 of the B-chain of native insulin is substituted and one or more amino acids of the A-chain or B-chain of native insulin are additionally substituted, and to long-acting insulin analogue derivatives having a further increased in vivo half-life in which an albumin-binding domain is additionally fused to the long-acting insulin analogues. The insulin analogues or insulin analogue derivatives according to the present invention have a significantly increased in vivo half-life, and thus can provide convenience to diabetic patients who self-administer insulin by injection.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: January 31, 2023
    Assignee: DAEWOONG PHARMACEUTICAL CO., LTD.
    Inventors: Kyong Hoon Ahn, Oh-Byung Kwon, Seung Woo Kim
  • Publication number: 20220125889
    Abstract: The present invention relates to a composition comprising albumin-bound Slit3 LRRD2 for prevention or treatment of a muscle disease, and more particularly provides a fusion protein comprising albumin-bound Slit3 LRRD2, a nucleic acid molecule encoding the fusion protein, a recombinant vector comprising the nucleic acid molecule, a transformant comprising the recombinant vector, a method for preparing a fusion protein using the transformant, a composition comprising the fusion protein for prevention or treatment of a muscle disease, and a composition comprising the fusion protein for improving the in vivo half-life of LRRD2 of the Slit 3 protein.
    Type: Application
    Filed: February 27, 2020
    Publication date: April 28, 2022
    Applicant: Daewoong Pharmaceutical Co., Ltd.
    Inventors: Jung Min KOH, Sung Sub KIM, Kyong Hoon AHN
  • Publication number: 20220125879
    Abstract: The present invention relates to a composition comprising albumin-bound LRRD2 of the SLIT3 protein for prevention or treatment of bone-related diseases.
    Type: Application
    Filed: February 27, 2020
    Publication date: April 28, 2022
    Applicant: Daewoong Pharmaceutical Co., Ltd.
    Inventors: Jung Min KOH, Sung Sub KIM, Kyong Hoon AHN
  • Publication number: 20210309710
    Abstract: The present invention relates to a method for producing an active form of a long-acting insulin analogue derivative, in which the amino acid at position 22 of the insulin B-chain is substituted from arginine (Arg) to lysine (Lys), so that the insulin analogue can be converted to an active form without cleavage of the B-chain even when it is reacted with clostripain. In a conventional method of converting pro-insulin to an active form by use of trypsin, an albumin binding domain is cleaved, making it difficult to convert the long-acting insulin analogue derivative to an active form. The production method according to the present invention overcomes this difficulty, and thus it can be effectively used for the production of a long-acting therapeutic agent for treatment of diabetes.
    Type: Application
    Filed: July 19, 2019
    Publication date: October 7, 2021
    Inventors: Kyong Hoon AHN, Seonkyeong JEONG, Chaeha YOON
  • Publication number: 20210300984
    Abstract: The present invention relates to long-acting insulin analogues having an increased in vivo half-life in which the amino acid at position 22 of the B-chain of native insulin is substituted and one or more amino acids of the A-chain or B-chain of native insulin are additionally substituted, and to long-acting insulin analogue derivatives having a further increased in vivo half-life in which an albumin-binding domain is additionally fused to the long-acting insulin analogues. The insulin analogues or insulin analogue derivatives according to the present invention have a significantly increased in vivo half-life, and thus can provide convenience to diabetic patients who self-administer insulin by injection.
    Type: Application
    Filed: July 19, 2019
    Publication date: September 30, 2021
    Inventors: Kyong Hoon AHN, Oh-Byung KWON, Seung Woo KIM
  • Patent number: 10155792
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for albumin. In particular, the present invention relates to albumin binding polypeptides which have a high resistance to enzymatic cleavage. The disclosure provides an albumin binding polypeptide comprising an albumin binding motif, which motif consists of the amino acid sequence GVSDFYKKLI XaKAKTVEGVE ALKXbXcI (SEQ ID NO:29).
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: December 18, 2018
    Assignee: AFFIBODY AB
    Inventors: Caroline Ekblad, Joachim Feldwisch, Kyong-Hoon Ahn
  • Publication number: 20150225464
    Abstract: The present disclosure relates to a class of engineered polypeptides having a binding affinity for albumin. In particular, the present invention relates to albumin binding polypeptides which have a high resistance to enzymatic cleavage. The disclosure provides an albumin binding polypeptide comprising an albumin binding motif, which motif consists of the amino acid sequence GVSDFYKKLI XaKAKTVEGVE ALKXbXcI (SEQ ID NO:29).
    Type: Application
    Filed: September 25, 2013
    Publication date: August 13, 2015
    Applicant: AFFIBODY AB
    Inventors: Caroline Ekblad, Joachim Feldwisch, Kyong-Hoon Ahn