Patents Assigned to HANGZHOU CONVERD CO., LTD.
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Publication number: 20240100106Abstract: The present disclosure provides an isolated recombinant oncolytic adenovirus, a pharmaceutical composition, and uses thereof for drugs for treatment of tumors and/or cancers. The recombinant oncolytic adenovirus is a selectively replicating oncolytic adenovirus, and the genome of the recombinant oncolytic adenovirus is integrated with a coding sequence of exogenous shRNA capable of inhibiting PDL1 expression in tumor cells. The replication capability of the virus in normal primary cells is much lower than the replication capability of the virus in tumor cells. Moreover, the expressed shPDL1 can significantly reduce the level of PDL1 protein highly expressed in tumor cells. Thus, the oncolytic killing effect of the oncolytic virus and the anti-tumor immunostimulatory effect of immune cells produce a synergistic effect.Type: ApplicationFiled: September 13, 2023Publication date: March 28, 2024Applicant: HANGZHOU CONVERD CO., LTD.Inventors: Jipo SHENG, Jin FU, Ronghua ZHAO, Yun QIN, Lin CHEN, Sanmao KANG, Fang HU
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Patent number: 11819519Abstract: A therapeutic agent comprising a nucleic acid and a TCR modified immune cell and use thereof. The therapeutic agent comprises a first composition comprising a first active ingredient and a second composition comprising a second active ingredient. The first active ingredient includes or contains a nucleic acid having a labeling polypeptide coding sequence for being introduced into a tumor cell and/or a cancer cell. The labeling polypeptide has one or more epitope polypeptides which can be presented on a surface of the tumor cell and/or cancer cell by MHC class I molecules. The second composition comprises a second active ingredient in a second pharmaceutically acceptable carrier and the second active ingredient comprises a T cell receptor modified immune cell which can specifically recognize and bind to the epitope polypeptide presented by MHC class I molecules. The therapeutic agent achieves synergistic treatment effect and provides a new route for tumor treatment.Type: GrantFiled: August 26, 2019Date of Patent: November 21, 2023Assignees: HANGZHOU CONVERD CO., LTD.Inventors: Fang Hu, Yafei Hou, Jipo Sheng, Xiankui Tan
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Patent number: 11806374Abstract: The present disclosure provides an isolated recombinant oncolytic adenovirus, a pharmaceutical composition, and uses thereof for drugs for treatment of tumors and/or cancers. The recombinant oncolytic adenovirus is a selectively replicating oncolytic adenovirus, and the genome of the recombinant oncolytic adenovirus is integrated with a coding sequence of exogenous shRNA capable of inhibiting PDL1 expression in tumor cells. The replication capability of the virus in normal primary cells is much lower than the replication capability of the virus in tumor cells. Moreover, the expressed shPDL1 can significantly reduce the level of PDL1 protein highly expressed in tumor cells. Thus, the oncolytic killing effect of the oncolytic virus and the anti-tumor immunostimulatory effect of immune cells produce a synergistic effect.Type: GrantFiled: July 3, 2018Date of Patent: November 7, 2023Assignee: HANGZHOU CONVERD CO., LTD.Inventors: Jipo Sheng, Jin Fu, Ronghua Zhao, Yun Qin, Lin Chen, Sanmao Kang, Fang Hu
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Patent number: 11446345Abstract: The present disclosure provides therapeutic agents and uses thereof for drugs for treatment of tumors and/or cancers. The active ingredients of the therapeutic agents comprise an oncolytic virus that selectively replicate in tumor cells and comprise NK cells.Type: GrantFiled: January 3, 2018Date of Patent: September 20, 2022Assignee: HANGZHOU CONVERD CO., LTD.Inventors: Fang Hu, Lin Chen, Ronghua Zhao
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Patent number: 11357804Abstract: Provided is the use of selectively replicating oncolytic viruses in the preparation of immunostimulants for treatment of tumors and/or cancers, wherein the oncolytic viruses do not carry exogenous immunoregulatory genes.Type: GrantFiled: January 24, 2018Date of Patent: June 14, 2022Assignee: HANGZHOU CONVERD CO., LTD.Inventors: Ronghua Zhao, Yanjun Zheng, Fang Hu
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Patent number: 11007141Abstract: An oral preparation for treating cell proliferation diseases. The oral preparation comprises hydroxylpropoxyl-?-cyclodextrin and an active component. The active component is KX2-361 or a medicinal salt thereof, and KX2-361 is represented by formula 1. By mixing hydroxylpropoxyl-ydcyclodextrin with KX2-361 or the medicinal salt thereof, an inclusion complex is formed, the solubility of the poorly-soluble drug KX2-361 is greatly improved, and accordingly the drug is prepared into an oral preparation. The oral preparation has good stability, high safety, good absorbability, high bioavailability and economical cost.Type: GrantFiled: December 20, 2016Date of Patent: May 18, 2021Assignees: GUANGZHOU XIANGXUE PHARMACEUTICAL CO., LTD., HANGZHOU CONVERD CO., LTD.Inventors: Shuiping Shi, Qingyong Zhang, Ronghua Zhao, Huihong Chen, Lun Zeng, Daxin Ou, Yan Liu
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Patent number: 10980859Abstract: The invention provides an in vivo individualized systemic immunotherapeutic method and device. The method includes, in a non-sequential manner: (1) increasing release amount of tumor antigens at a tumor site; (2) at the tumor site, increasing level of proteins capable of adhering to and/or wrapping the tumor antigens; (3) at the tumor site, increasing level of dedicated antigen-presenting cells involved in immunity, and establishing, between the dedicated antigen-presenting cells and immune effector cells, a close connection capable of activating the immune effector cells; and (4) at the tumor site, increasing level and improving function of the immune effector cells. The steps (1)-(4) each reaches a maximum value at a respective time which overlaps with each other maximally, as well as at a respective site which overlaps with each other maximally. The invention combines oncolytic therapy and immunotherapy, in individualized systemic immunotherapy, and provides significantly improved therapeutic effect.Type: GrantFiled: March 2, 2016Date of Patent: April 20, 2021Assignee: Hangzhou Converd Co., Ltd.Inventors: Fang Hu, Ronghua Zhao, Siyi Chen, Bo Wu, Huiqun Xia, Yanjun Zheng
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Publication number: 20190000756Abstract: An oral preparation for treating cell proliferation diseases. The oral preparation comprises hydroxylpropoxyl-?-cyclodextrin and an active component. The active component is KX2-361 or a medicinal salt thereof, and KX2-361 is represented by formula 1. By mixing hydroxylpropoxyl-ydcyclodextrin with KX2-361 or the medicinal salt thereof, an inclusion complex is formed, the solubility of the poorly-soluble drug KX2-361 is greatly improved, and accordingly the drug is prepared into an oral preparation. The oral preparation has good stability, high safety, good absorbability, high bioavailability and economical cost.Type: ApplicationFiled: December 20, 2016Publication date: January 3, 2019Applicants: GUANGZHOU XIANGXUE PHARMACEUTICAL CO., LTD., HANGZHOU CONVERD CO., LTD.Inventors: Shuiping SHI, Qingyong ZHANG, Ronghua ZHAO, Huihong CHEN, Lun ZENG, Daxin OU, Yan LIU