Patents Assigned to Sankyo Company Limited
  • Publication number: 20230265431
    Abstract: Provided is a short-chain guide RNA that is able to induce site-specific editing even when only a small number of nucleotides is attached to the target recognition site. The guide RNA includes a first oligonucleotide that identifies the target RNA, and a second oligonucleotide that links to the 3? end of the first oligonucleotide. The first oligonucleotide contains: a target-corresponding nucleotide residue that corresponds to an adenosine residue in the target RNA; an oligonucleotide of 15 to 30 residues that links to the 5? end of the target-corresponding nucleotide residue and that has a base sequence complementary to the target RNA; and an oligonucleotide of 3 or 4 residues that links to the 3? end of the target-corresponding nucleotide residue and that has a base sequence complementary to the target RNA. The second oligonucleotide contains 2 to 24 nucleotide residues, and induces site-specific editing of the target RNA.
    Type: Application
    Filed: March 22, 2023
    Publication date: August 24, 2023
    Applicants: FUKUOKA UNIVERSITY, DAIICHI SANKYO COMPANY, LIMITED
    Inventor: Masatora FUKUDA
  • Publication number: 20230256110
    Abstract: A pharmaceutical product for administration of an anti HER2 antibody-drug conjugate in combination with an ATM inhibitor is provided. The anti-HER2 antibody-drug conjugate is an antibody-drug conjugate in which a drug linker represented by the following formula (wherein A represents the connecting position to an antibody) is conjugated to an anti-HER2 antibody via a thioether bond. Also provided is a therapeutic use and method wherein the antibody-drug conjugate and the ATM inhibitor are administered in combination to a subject: Formula (I).
    Type: Application
    Filed: June 23, 2021
    Publication date: August 17, 2023
    Applicants: AstraZeneca UK Limited, DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Jerome Thomas METTETAL, II, Stephen Thomas DURANT, Azadeh Cheraghchi Bashi ASTANEH, Alan Yin Kai LAU, Yann WALLEZ
  • Publication number: 20230257368
    Abstract: An object of the present invention is to provide an industrially useful and novel process for producing a 1,3-benzodioxole derivative, with high yield and few impurities, including a novel chlorination reaction of a benzene ring. In the novel process for producing a 1,3-benzodioxole derivative, it has been found that an industrially useful and novel chlorination reaction of a benzene ring is conducted by using sulfuryl chloride with high yield and few impurities. Based on the finding, the invention has been accomplished.
    Type: Application
    Filed: July 7, 2021
    Publication date: August 17, 2023
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Tsuyoshi UEDA, Yuji KAIYA, Takahisa UCHIDA, Makoto IMAI
  • Publication number: 20230257767
    Abstract: The present invention provides an approach to enhancing the production of a foreign protein serving as a protein-based pharmaceutical product in host cells such as cultured cells derived from a mammal. The present invention provides transformed cells having a novel Hspa5 gene promoter, and a method for secreting and producing a foreign protein at high levels using the transformed host cells.
    Type: Application
    Filed: January 12, 2023
    Publication date: August 17, 2023
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Kenji Masuda, Koichi Nonaka, Hiroki Tanemura
  • Publication number: 20230233540
    Abstract: A pharmaceutical product for administration of an anti HER2 antibody-drug conjugate in combination with a CDK9 inhibitor is provided. The anti-HER2 antibody-drug conjugate is an antibody-drug conjugate in which a drug linker represented by the following formula (wherein A represents the connecting position to an antibody) is conjugated to an anti-HER2 antibody via a thioether bond.
    Type: Application
    Filed: June 23, 2021
    Publication date: July 27, 2023
    Applicants: AstraZeneca UK Limited, DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Jerome Thomas METTETAL, II, Justin Robert CIDADO, Scott BOIKO
  • Publication number: 20230226205
    Abstract: It is an object of the present invention to provide an antibody binding to CDH6 and having internalization activity, an antibody-drug conjugate of the antibody and a drug having antitumor activity, a pharmaceutical product comprising the antibody-drug conjugate and having therapeutic effects on a tumor, a method for treating a tumor using the antibody, the antibody-drug conjugate or the pharmaceutical product, and the like. The present invention provides an anti-CDH6 antibody having internalization activity, an antibody-drug conjugate of the antibody and a drug having antitumor activity, a pharmaceutical product comprising the antibody or the antibody-drug conjugate, and a method for treating a tumor.
    Type: Application
    Filed: July 26, 2022
    Publication date: July 20, 2023
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Atsuko SAITO, Tsuyoshi HIRATA, Kensuke NAKAMURA
  • Publication number: 20230212306
    Abstract: The present invention provides a pharmaceutical composition comprising an antibody which binds specifically to human TLR7 or monkey TLR7 and does not bind to mouse TLR7 or rat TLR7, and has an activity of inhibiting a function of human TLR7 or monkey TLR7, and the like.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 6, 2023
    Applicants: Daiichi Sankyo Company, Limited, The University of Tokyo
    Inventors: Kensuke Miyake, Yusuke Murakami, Yuji Motoi, Atsuo Kanno, Toshiyuki Shimizu, Umeharu Ohto, Takaichi Shimozato, Atsushi Manno, Takashi Kagari, Jun Ishiguro, Kensuke Nakamura, Takashi Isobe
  • Publication number: 20230203132
    Abstract: The present invention provides a novel peptide that has an amino acid sequence represented by SEQ ID NO: 18, and binds to an active protease but does not bind to a pro-protease.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 29, 2023
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Hidenori Yano, Daisuke Nishimiya, Ryuji Hashimoto, Yoichi Niitsu
  • Patent number: 11667642
    Abstract: Provided is a novel and industrially useful method for producing a 3,6-disubstituted imidazo[1,2-b]pyridazine derivative. The present invention provides a method for producing a 3,6-disubstituted imidazo[1,2-b]pyridazine derivative, which uses 6-fluoroimidazo[1,2-b]pyridazine as a starting material, while using an aromatic substitution reaction that utilizes C—H activation by means of palladium.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: June 6, 2023
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Ryoji Koike, Yoshifumi Hachisu, Takafumi Kitawaki, Shohei Shiraishi
  • Patent number: 11661451
    Abstract: An object of the present invention is to provide a novel anti-CD147 antibody exhibiting potent antitumor efficacy and having excellent safety. Another object of the present invention is to provide a pharmaceutical product comprising such an antibody. Another object of the present invention is to provide a method for treating tumors using the antibody or the pharmaceutical product, for example. The present invention provides a CD147-specific antibody that activates CD147 and exhibits high antitumor efficacy. The present invention provides the anti-CD147 antibody that exhibits high antitumor efficacy independent of effector functions. The present invention provides a pharmaceutical composition comprising such an anti-CD147 antibody. The present invention provides a method for treating tumors using such an anti-CD147 antibody and/or pharmaceutical composition.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: May 30, 2023
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Keisuke Fukuchi, Kayoko Nanai, Masato Amano, Kozo Yoneda, Yusuke Totoki, Shoji Yamamoto
  • Publication number: 20230144876
    Abstract: The present invention provides an immunity-inducing agent comprising a polynucleotide-peptide conjugate or a pharmaceutically acceptable salt thereof as an active component, wherein the polynucleotide-peptide conjugate consists of: a single-chain polynucleotide or polynucleotide derivative comprising a CpG motif; a peptide; and a spacer which is covalently bonded at one end thereof to the polynucleotide or polynucleotide derivative and covalently bonded at the other end thereof to the peptide, wherein the peptide is a peptide modified by substituting one or more contiguous amino acids at the N-terminus of an MHC-binding peptide with an amino acid having a reactive functional group which allows for the formation of a covalent bond with the spacer, wherein the one or more contiguous amino acids contain no anchor residues for MHC binding.
    Type: Application
    Filed: March 26, 2021
    Publication date: May 11, 2023
    Applicants: The University of Kitakyushu, Daiichi Sankyo Company, Limited
    Inventors: Shinichi Mochizuki, Makoto Koizumi, Koji Morita
  • Patent number: 11643658
    Abstract: Provided is a short-chain guide RNA that is able to induce site-specific editing even when only a small number of nucleotides is attached to the target recognition site. The guide RNA includes a first oligonucleotide that identifies the target RNA, and a second oligonucleotide that links to the 3? end of the first oligonucleotide. The first oligonucleotide contains: a target-corresponding nucleotide residue that corresponds to an adenosine residue in the target RNA; an oligonucleotide of 15 to 30 residues that links to the 5? end of the target-corresponding nucleotide residue and that has a base sequence complementary to the target RNA; and an oligonucleotide of 3 or 4 residues that links to the 3? end of the target-corresponding nucleotide residue and that has a base sequence complementary to the target RNA. The second oligonucleotide contains 2 to 24 nucleotide residues, and induces site-specific editing of the target RNA.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 9, 2023
    Assignees: FUKUOKA UNIVERSITY, DAIICHI SANKYO COMPANY, LIMITED
    Inventor: Masatora Fukuda
  • Publication number: 20230136988
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: October 13, 2022
    Publication date: May 4, 2023
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 11633493
    Abstract: As an antitumor drug which is excellent in terms of antitumor effect and safety, there is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an antibody via a linker having a structure represented by the following formula: -L1-L2-LF-NH—(CH2)n1-La-Lb-Lc- wherein the antibody is connected to the terminal of L1, and the antitumor compound is connected to the terminal of Lc with the nitrogen atom of the amino group at position 1 as a connecting position.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 25, 2023
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Takeshi Masuda, Hiroyuki Naito, Takashi Nakada, Masao Yoshida, Shinji Ashida, Hideki Miyazaki, Yuji Kasuya, Koji Morita, Yuki Abe, Yusuke Ogitani
  • Patent number: 11628223
    Abstract: A novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, comprising substituted benzo[e]pyrrolo[1,2-a][1,4]diazepines represented by the [Formula 24], [Formula 25], [Formula 26], and/or [Formula 27].
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 18, 2023
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro Toda, Yusuke Ota, Fuminao Doi, Masaki Meguro, Ichiro Hayakawa, Shinji Ashida, Takeshi Masuda, Takashi Nakada, Mitsuhiro Iwamoto, Naoya Harada, Tomoko Terauchi, Daisuke Okajima, Kensuke Nakamura, Hiroaki Uchida, Hirofumi Hamada
  • Patent number: 11618785
    Abstract: The present invention provides a novel antibody binding to human CD3, and a molecule having antigen binding activity that includes the antibody. The present invention provides a novel antibody binding to human CD3, a molecule having antigen binding activity that includes the antibody, and a pharmaceutical composition having cytotoxic activity that includes the antibody or the molecule as an active ingredient.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 4, 2023
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Tohru Takahashi, Chigusa Yoshimura, Shiho Kozuma, Kensuke Nakamura, Chikako Suzuki, Junya Ichikawa
  • Publication number: 20230097700
    Abstract: An object of the present invention is to provide a compound useful as a therapeutic drug for an autoimmune disease such as systemic lupus erythematosus (SLE) and lupus nephritis of SLE patients by suppressing immune cell function by inhibiting proliferation of activated T cells and production of interferon alpha (IFN-?). The present invention provides a compound represented by formula (I): wherein R1, R2 and R3 are the same as defined in the specification, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 30, 2023
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Takashi Tsuji, Akira Nakao, Yuji Nakamura, Zhengyu Zhang, Mika Yokoyama, Makoto Iwanami
  • Publication number: 20230084707
    Abstract: The present invention provides a novel antibody-pyrrolodiazepine derivative and a novel antibody-pyrrolodiazepine derivative conjugate using the same, and a novel CLDN6 and/or CLDN9 antibody.
    Type: Application
    Filed: April 5, 2022
    Publication date: March 16, 2023
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Narihiro TODA, Yusuke OTA, Fuminao DOI, Masaki MEGURO, Ichiro HAYAKAWA, Shinji ASHIDA, Takeshi MASUDA, Takashi NAKADA, Mitsuhiro IWAMOTO, Naoya HARADA, Tomoko TERAUCHI, Daisuke OKAJIMA, Kensuke NAKAMURA, Hiroaki UCHIDA, Hirofumi HAMADA
  • Publication number: 20230074669
    Abstract: The present invention provides a compound or a pharmaceutically acceptable salt thereof having an inhibitory action on the interaction between menin and an MLL protein. The compound represented by the formula (1) or a pharmaceutically acceptable salt thereof. wherein, in the formula (1), the dotted circle, R1, R2, R3, R4, R5, R6, R7, R8, Ring Q1, W, m and n are each as defined in the description.
    Type: Application
    Filed: November 24, 2021
    Publication date: March 9, 2023
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Kenji Yoshikawa, Noriyasu Haginoya, Tomoaki Hamada, Ryutaro Kanada, Jun Watanabe, Yoshiko Kagoshima, Eri Tokumaru, Kenji Murata, Takayuki Baba, Mayumi Kitagawa, Akiko Kurimoto, Masashi Numata, Machiko Shiroishi, Taeko Shinozaki
  • Publication number: 20230061732
    Abstract: An oligonucleotide that induces a site-specific editing for a target RNA, the oligonucleotide including a first oligonucleotide that specifies the target RNA, a second oligonucleotide that is linked to the 3?-side of the first oligonucleotide, a third oligonucleotide that is capable of forming a complementary pair together with the second oligonucleotide, and a first linking portion that links the second oligonucleotide and the third oligonucleotide. The first oligonucleotide is composed of a target-corresponding nucleotide residue that corresponds to an adenosine residue in the target RNA; an oligonucleotide of 10 to 30 residues linked to the 5?-side of the target-corresponding nucleotide residue and having a base sequence complementary to the target RNA; and an oligonucleotide of 3-6 residues linked to the 3?-side of the target-corresponding nucleotide residue and having a base sequence complementary to the target RNA.
    Type: Application
    Filed: June 4, 2020
    Publication date: March 2, 2023
    Applicants: FUKUOKA UNIVERSITY, DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Masatora FUKUDA, Makoto KOIZUMI, Shinzo IWASHITA