Patents Assigned to PRECEDO PHARMACEUTICALS CO., LTD
  • Publication number: 20240392251
    Abstract: A primary cell culture medium for culturing primary lung cancer epithelial cells, a culture method using the primary cell culture medium, and an application thereof in drug efficacy evaluation and screening. The culture medium contains an MST1/2 kinase inhibitor, a ROCK kinase inhibitor, a fibroblast growth factor, at least one additive selected from a B27 additive and an N2 additive, an epidermal growth factor, transferrin, gastrin, and a TGF? type I receptor inhibitor.
    Type: Application
    Filed: October 26, 2021
    Publication date: November 28, 2024
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Jie HU, Cheng CHEN, Tao HUANG
  • Publication number: 20240319170
    Abstract: Disclosed are a culture medium and a culture method for in vitro expansion of primary cells of intestinal cancer. The culture medium comprises an initial culture medium, a Rho protease inhibitor, an antibiotic, gastrin, A8301, a non-essential amino acid, cholera toxin, an insulin-like growth factor-1, nicotinamide, insulin, fetal bovine serum, and an additive selected from at least one of a B27 additive and an N2 additive. By using the culture medium, effective and rapid expansion of the primary cells of intestinal cancer can be achieved. The expanded cells maintain the pathological characteristics of patients, and the culture success rate and the cell expansion rate of the primary cells of intestinal cancer are improved, which provide a research foundation for personalized treatment of the patients.
    Type: Application
    Filed: February 5, 2021
    Publication date: September 26, 2024
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Yuying HE, Cheng CHEN, Tao HUANG, Tao REN, Wenchao WANG, Li WANG
  • Publication number: 20240319169
    Abstract: The present invention provides a cell culture medium for culturing primary gastrointestinal stromal tumor cells, comprising gastrin, N2, insulin, a receptor tyrosine kinase ligand, and a Rock kinase inhibitor. The present invention further provides a method for culturing gastrointestinal stromal tumor cells by using the cell culture medium, and an application and a method of an expanded cell population, which is obtained by using the method, in efficacy evaluation or screening.
    Type: Application
    Filed: January 22, 2021
    Publication date: September 26, 2024
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Feiyang LIU, Xiaoyu LI, Husheng MEI, Wenchao WANG, Tao REN, Li WANG
  • Publication number: 20230235283
    Abstract: Provided are a primary cell culture medium that contains a combination of an MST1/2 kinase inhibitor and a ROCK kinase inhibitor and is used for culturing primary esophageal squamous cell carcinoma epithelial cells, and a culture method using the primay cell culture medium. In the culture method, the primary cell culture medium is used to culture primay cells on a culture vessel coated with an extracellular matrix glue, so that the primary cells prolilferate rapidly. A cell model obtained by using the primary cell culture medium and the primary cell culture method of the present invention can be used for the efficacy evaluation and screening of drugs.
    Type: Application
    Filed: April 23, 2020
    Publication date: July 27, 2023
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Jie HU, Wenchao WANG, Cheng CHEN, Tao REN, Li WANG
  • Publication number: 20230091960
    Abstract: Provided are a culture medium and cultivation method of rapidly expanding primary cells of esophageal squamous carcinoma in vitro, and the use thereof in screening drugs. The culture medium comprises an initial culture medium selected from DMEM/F12, DMEM, F12, or RPMI-1640, a Rho protease inhibitor, an antibiotic, insulin, an N2 additive, insulin-like growth factor 1, a non-essential amino acid, and optionally, hydrocortisone, optionally, glutamine, and optionally, bovine pituitary extract.
    Type: Application
    Filed: February 26, 2020
    Publication date: March 23, 2023
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Jie HU, Cheng CHEN, Wenchao WANG, Li WANG
  • Publication number: 20220389379
    Abstract: Provided is a culture medium containing amphiregulin for culturing primary breast epithelial cells and a culture method involving using the medium. In the culturing method, primary cells are cultured on a culture vessel coated with an extracellular matrix gel by using the culture medium, and the primary cells grow on the culture vessel, which has been coated with the extracellular matrix gel, and proliferate rapidly under the combined action of nutrient factors and an extracellular matrix contained in the primary cell culture medium. The cell model obtained by the primary cell culture medium and the primary cell culture method can be used for the evaluating the efficacy of and screening drugs.
    Type: Application
    Filed: November 18, 2019
    Publication date: December 8, 2022
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Feiyang LIU, Husheng MEI, Wenchao WANG, Ming ZHAO, Zongru JIANG, Tao REN, Li WANG
  • Patent number: 10975082
    Abstract: The present invention provides a novel inhibitor of FLT3 kinase, comprising a compound of formula (I) or a pharmaceutically acceptable salt, solvate, isomer, ester, acid, metabolite or prodrug thereof. The present invention also provides a pharmaceutical composition comprising the compound of formula (I), as well as the use and method for preventing or treating FLT3-related conditions, especially conditions related to mutant FLT3 kinase (particularly, FLT3/ITD mutant kinase).
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: April 13, 2021
    Assignee: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong Liu, Jing Liu, Xixiang Li, Aoli Wang, Ziping Qi, Hong Wu, Jiaxin Wu, Wenchao Wang, Chen Hu, Cheng Chen, Li Wang, Beilei Wang
  • Patent number: 10793543
    Abstract: The present invention provides a compound represented by formula (I), or a pharmaceutically acceptable salt, a solvate, an ester, an acid, a metabolite or a prodrug thereof. The compound itself in the present invention or in combination with at least one therapeutic agent can be used for preventing or treating diseases, disorders or symptoms caused by the adjustment of the activity of tyrosine kinase C-KIT, or affected by the activity of the tyrosine kinase C-KIT or involving in the activity of the tyrosine kinase C-KIT, especially cancers or other cell proliferation diseases.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 6, 2020
    Assignees: PRECEDO PHARMACEUTICALS CO., LTD, HEFEI GRACEVO BIO-MEDICINE CO., LTD
    Inventors: Qingsong Liu, Jing Liu, Qiang Wang, Beilei Wang, Feiyang Liu, Shuang Qi, Ziping Qi, Fengming Zou, Cheng Chen, Wenchao Wang, Chen Hu, Xiaochuan Liu, Wei Wang, Aoli Wang, Li Wang, Zhenquan Hu, Tao Ren
  • Patent number: 10781214
    Abstract: The present application provides a compound of Formula (I) as an inhibitor against wild-type EGFR and/or mutant EGFR, which may be used for treating human non-small cell lung cancer individually or in combination with other therapeutic agent(s). The compound of Formula (I) of the present application may be used for treating patients of drug-resistant human non-small cell lung cancer harboring wild-type EGFR and/or EGFR T790M mutation and/or EGFR L858R mutation and/or EGFR delE746_A750 mutation.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: September 22, 2020
    Assignee: PRECEDO PHARMACEUTICALS CO., LTD.
    Inventors: Qingsong Liu, Jing Liu, Xixiang Li, Aoli Wang, Hong Wu, Kailin Yu, Chen Hu, Wenchao Wang, Cheng Chen, Fengming Zou, Ziping Qi, Li Wang, Beilei Wang
  • Publication number: 20200010471
    Abstract: The present invention provides a novel inhibitor of FLT3 kinase, comprising a compound of formula (I) or a pharmaceutically acceptable salt, solvate, isomer, ester, acid, metabolite or prodrug thereof. The present invention also provides a pharmaceutical composition comprising the compound of formula (I), as well as the use and method for preventing or treating FLT3-related conditions, especially conditions related to mutant FLT3 kinase (particularly, FLT3/ITD mutant kinase).
    Type: Application
    Filed: June 5, 2017
    Publication date: January 9, 2020
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Jing LIU, Xixiang LI, Aoli WANG, Ziping QI, Hong WU, Jiaxin WU, Wenchao WANG, Chen HU, Cheng CHEN, Li WANG, Beilei WANG
  • Patent number: 10350210
    Abstract: The present application provides a compound of formula I, which is a EGFR and ALK dual inhibitor and can be used alone or in combination with other therapeutic agents to treat diseases such as non-small cell lung cancer. The compounds of the present application are useful in the treatment of diseases carrying the EGFR wild-type gene, or carrying the EGFR T790M mutant gene and/or the EGFR L858R mutant gene and/or the EGFR delE746_A750 mutant gene, or in the treatment of diseases carrying the ALK wild-type gene, ALK F1174L mutant gene and/or ALK F1196M gene and/or EML4-ALK mutant gene and/or NPM-ALK mutant gene, and can be used in the first-line treatment of anaplastic lymphoma kinase (ALK) positive late-stage non-small cell Lung cancer.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: July 16, 2019
    Assignee: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Jing Liu, Qingsong Liu, Taoshan Jiang, Aoli Wang, Jiaxin Wu, Hong Wu, Ziping Qi, Yongfei Chen, Fengming Zou, Wenchao Wang, Zheng Zhao, Li Wang, Beilei Wang
  • Publication number: 20190084960
    Abstract: The present invention provides a compound represented by formula (I), or a pharmaceutically acceptable salt, a solvate, an ester, an acid, a metabolite or a prodrug thereof. The compound itself in the present invention or in combination with at least one therapeutic agent can be used for preventing or treating diseases, disorders or symptoms caused by the adjustment of the activity of tyrosine kinase C-KIT, or affected by the activity of the tyrosine kinase C-KIT or involving in the activity of the tyrosine kinase C-KIT, especially cancers or other cell proliferation diseases.
    Type: Application
    Filed: March 28, 2017
    Publication date: March 21, 2019
    Applicants: PRECEDO PHARMACEUTICALS CO., LTD, HEFEI GRACEVO BIO-MEDICINE CO., LTD
    Inventors: Qingsong LIU, Jing LIU, Qiang WANG, Beilei WANG, Feiyang LIU, Shuang QI, Ziping QI, Fengming ZOU, Cheng CHEN, Wenchao WANG, Chen HU, Xiaochuan LIU, Wei WANG, Aoli WANG, Li WANG, Zhenquan HU, Tao REN
  • Publication number: 20190010159
    Abstract: The present application provides a compound of Formula (I) as an inhibitor against wild-type EGFR and/or mutant EGFR, which may be used for treating human non-small cell lung cancer individually or in combination with other therapeutic agent(s). The compound of Formula (I) of the present application may be used for treating patients of drug-resistant human non-small cell lung cancer harboring wild-type EGFR and/or EGFR T790M mutation and/or EGFR L858R mutation and/or EGFR delE746_A750 mutation.
    Type: Application
    Filed: December 27, 2016
    Publication date: January 10, 2019
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Qingsong LIU, Jing LIU, Xixiang LI, Aoli WANG, Hong WU, Kailin YU, Chen HU, Wenchao WANG, Cheng CHEN, Fengming ZOU, Ziping QI, Li WANG, Beilei WANG
  • Publication number: 20180369242
    Abstract: The present application provides a compound of formula I, which is a EGFR and ALK dual inhibitor and can be used alone or in combination with other therapeutic agents to treat diseases such as non-small cell lung cancer. The compounds of the present application are useful in the treatment of diseases carrying the EGFR wild-type gene, or carrying the EGFR T790M mutant gene and/or the EGFR L858R mutant gene and/or the EGFR delE746_A750 mutant gene, or in the treatment of diseases carrying the ALK wild-type gene, ALK F1174L mutant gene and/or ALK F1196M gene and/or EML4-ALK mutant gene and/or NPM-ALK mutant gene, and can be used in the first-line treatment of anaplastic lymphoma kinase (ALK) positive late-stage non-small cell Lung cancer.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 27, 2018
    Applicant: PRECEDO PHARMACEUTICALS CO., LTD
    Inventors: Jing LIU, Qingsong LIU, Taoshan JIANG, Aoli WANG, Jiaxin WU, Hong WU, Ziping QI, Yongfei CHEN, Fengming ZOU, Wenchao WANG, Zheng ZHAO, Li WANG, Beilei WANG