Patents by Inventor Thiwanka Samarakoon
Thiwanka Samarakoon 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).
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Publication number: 20260158152Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. In an embodiment, the splicing modulator comprises a pladienolide or a pladienolide derivative.Type: ApplicationFiled: November 11, 2025Publication date: June 11, 2026Inventors: Ermira PAZOLLI, Silvia BUONAMICI, Thiwanka SAMARAKOON, Sudeep PRAJAPATI, Nathan FISHKIN, James PALACINO, Michael SEILER, Ping ZHU, Andrew COOK, Peter SMITH, Xiang LIU, Shelby ELLERY, Dominic REYNOLDS, Lihua YU, Zhenhua WU, Shouyong PENG, Nicholas CALANDRA, Megan SHEEHAN, Yonghong XIAO
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Patent number: 12622905Abstract: The present disclosure provides novel pladienolide compounds according to Formula I: pharmaceutical compositions containing such compounds, and methods for using the compounds as therapeutic agents. These compounds may be useful in the treatment of cancer, particularly cancers in which agents that target the spliceosome and mutations therein are known to be useful. Also provided herein are methods of treating cancers by administering at least one compound disclosed herein and at least one additional therapy.Type: GrantFiled: March 7, 2023Date of Patent: May 12, 2026Assignee: EISAI R&D MANAGEMENT CO., LTD.Inventors: Andrew Cook, Dominic Reynolds, Cheng Zhong, Ryan Brawn, Shelby Ellery, Thiwanka Samarakoon, Xiang Liu, Sudeep Prajapati, Megan Sheehan, Jason T. Lowe, James Palacino
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Publication number: 20260049080Abstract: Disclosed is a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof. The variables in Formula (I) are defined herein. Compounds of Formula (I) are useful for inhibiting wild type c-kit kinase and for treating disorders and diseases mediated by wild type c-kit kinase in humans or non-humans.Type: ApplicationFiled: August 18, 2025Publication date: February 19, 2026Inventors: Jason D. Brubaker, Yinghui Dai, Thomas A. Dineen, Guangyan Du, Cheng Fang, Andrew Marc Haidle, Joseph L. Kim, Emanuele Perola, Thiwanka Samarakoon, Douglas Wilson
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Patent number: 12514928Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a herboxidiene splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. The herboxidiene itself is also claimed. Further claims are directed to its use, and to the use of a neoantigen, generated by the herboxidiene or its ADC, or a vaccine against this neoantigen.Type: GrantFiled: December 12, 2019Date of Patent: January 6, 2026Assignee: EISAI R&D MANAGEMENT CO., LTD.Inventors: Nathan Fishkin, Thiwanka Samarakoon, James Palacino, Kenzo Arai, Yoshihiko Kotake, Shinya Okubo, Norio Murai, Masayuki Miyano
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Patent number: 12514926Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. In an embodiment, the splicing modulator comprises a pladienolide or a pladienolide derivative.Type: GrantFiled: February 19, 2024Date of Patent: January 6, 2026Assignee: EISAI R&D MANAGEMENT CO., LTD.Inventors: Ermira Pazolli, Silvia Buonamici, Thiwanka Samarakoon, Sudeep Prajapati, Nathan Fishkin, James Palacino, Michael Seiler, Ping Zhu, Andrew Cook, Peter Smith, Xiang Liu, Shelby Ellery, Dominic Reynolds, Lihua Yu, Zhenhua Wu, Shouyong Peng, Nicholas Calandra, Megan Sheehan, Yonghong Xiao
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Patent number: 12448379Abstract: Disclosed is a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof. The variables in Formula (I) are defined herein. Compounds of Formula (I) are useful for inhibiting wild type c-kit kinase and for treating disorders and diseases mediated by wild type c-kit kinase in humans or non-humans.Type: GrantFiled: March 13, 2024Date of Patent: October 21, 2025Assignee: Blueprint Medicines CorporationInventors: Jason D. Brubaker, Yinghui Dai, Thomas A. Dineen, Guangyan Du, Cheng Fang, Andrew Marc Haidle, Joseph L. Kim, Emanuele Perola, Thiwanka Samarakoon, Douglas Wilson
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Publication number: 20250135017Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein.Type: ApplicationFiled: September 10, 2024Publication date: May 1, 2025Inventors: Ermira PAZOLLI, Silvia BUONAMICI, Thiwanka SAMARAKOON, Sudeep PRAJAPATI, Nathan FISHKIN, James PALACINO, Michael SEILER, Ping ZHU, Andrew COOK, Peter SMITH, Xiang LIU, Shelby ELLERY, Dominic REYNOLDS, Lihua YU, Zhenhua WU, Shouyong PENG, Nicholas CALANDRA, Megan SHEEHAN, Yonghong XIAO
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Patent number: 12269824Abstract: Disclosed is a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof. The variables in Formula (I) are defined herein. Compounds of Formula (I) are useful for inhibiting wild type c-kit kinase and for treating disorders and diseases mediated by wild type c-kit kinase in humans or non-humans.Type: GrantFiled: March 13, 2024Date of Patent: April 8, 2025Assignee: Blueprint Medicines CorporationInventors: Jason D. Brubaker, Yinghui Dai, Thomas A. Dineen, Guangyan Du, Cheng Fang, Andrew Marc Haidle, Joseph L. Kim, Emanuele Perola, Thiwanka Samarakoon, Douglas Wilson
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Patent number: 12172986Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. In an embodiment, the splicing modulator comprises a pladienolide or a pladienolide derivative.Type: GrantFiled: May 31, 2019Date of Patent: December 24, 2024Assignee: EISAI R&D MANAGEMENT CO., LTDInventors: Ermira Pazolli, Silvia Buonamici, Thiwanka Samarakoon, Sudeep Prajapati, Nathan Fishkin, James Palacino, Michael Seiler, Ping Zhu, Andrew Cook, Peter Smith, Xiang Liu, Shelby Ellery, Dominic Reynolds, Lihua Yu, Zhenhua Wu, Shouyong Peng, Nicholas Calandra, Megan Sheehan, Yonghong Xiao
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Publication number: 20240360108Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. In an embodiment, the splicing modulator comprises a pladienolide or a pladienolide derivative.Type: ApplicationFiled: February 19, 2024Publication date: October 31, 2024Inventors: Ermira PAZOLLI, Silvia BUONAMICI, Thiwanka SAMARAKOON, Sudeep PRAJAPATI, Nathan FISHKIN, James PALACINO, Michael SEILER, Ping ZHU, Andrew COOK, Peter SMITH, Xiang LIU, Shelby ELLERY, Dominic REYNOLDS, Lihua YU, Zhenhua WU, Shouyong PENG, Nicholas CALANDRA, Megan SHEEHAN, Yonghong XIAO
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Publication number: 20240327535Abstract: Antibodies, antigen-binding fragments, and conjugates (e.g., antibody-drug conjugates (ADCs) such as those comprising a splicing modulator) that bind to BCMA are disclosed. The disclosure further relates to methods and compositions for use in the treatment of cancer by administering a composition provided herein.Type: ApplicationFiled: June 12, 2024Publication date: October 3, 2024Inventors: Ryan Henry, Thiwanka Samarakoon, Nathan Fishkin, Ping Zhu, Ermira Pazolli, James Palacino, Juan C. Almagro
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Publication number: 20240262826Abstract: Disclosed is a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof. The variables in Formula (I) are defined herein. Compounds of Formula (I) are useful for inhibiting wild type c-kit kinase and for treating disorders and diseases mediated by wild type c-kit kinase in humans or non-humans.Type: ApplicationFiled: March 13, 2024Publication date: August 8, 2024Inventors: Jason D. Brubaker, Yinghui Dai, Thomas A. Dineen, Guangyan Du, Cheng Fang, Andrew Marc Haidle, Joseph L. Kim, Emanuele Perola, Thiwanka Samarakoon, Douglas Wilson
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Patent number: 12043670Abstract: Antibodies, antigen-binding fragments, and conjugates (e.g., antibody-drug conjugates (ADCs) such as those comprising a splicing modulator) that bind to BCMA are disclosed. The disclosure further relates to methods and compositions for use in the treatment of cancer by administering a composition provided herein.Type: GrantFiled: June 4, 2021Date of Patent: July 23, 2024Assignee: Eisai R&D Management Co., Ltd.Inventors: Ryan Henry, Thiwanka Samarakoon, Nathan Fishkin, Ping Zhu, Ermira Pazolli, James Palacino, Juan C. Almagro
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Patent number: 11945807Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. In an embodiment, the splicing modulator comprises a pladienolide or a pladienolide derivative.Type: GrantFiled: May 3, 2022Date of Patent: April 2, 2024Assignee: EISAI R&D MANAGEMENT CO., LTD.Inventors: Ermira Pazolli, Silvia Buonamici, Thiwanka Samarakoon, Sudeep Prajapati, Nathan Fishkin, James Palacino, Michael Seiler, Ping Zhu, Andrew Cook, Peter Smith, Xiang Liu, Shelby Ellery, Dominic Reynolds, Lihua Yu, Zhenhua Wu, Shouyong Peng, Nicholas Calandra, Megan Sheehan, Yonghong Xiao
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Publication number: 20230301990Abstract: The present disclosure provides novel pladienolide compounds, pharmaceutical compositions containing such compounds, and methods for using the compounds as therapeutic agents. These compounds may be useful in the treatment of cancer, particularly cancers in which agents that target the spliceosome and mutations therein are known to be useful. Also provided herein are methods of treating cancers by administering at least one compound disclosed herein and at least one additional therapy.Type: ApplicationFiled: March 7, 2023Publication date: September 28, 2023Applicant: Eisai R&D Management Co., Ltd.Inventors: Andrew COOK, Dominic REYNOLDS, Cheng ZHONG, Ryan BRAWN, Shelby ELLERY, Thiwanka SAMARAKOON, Xiang LIU, Sudeep PRAJAPATI, Megan SHEEHAN, Jason T. LOWE, James PALACINO
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Patent number: 11679107Abstract: The present disclosure provides pladienolide compounds, pharmaceutical compositions containing such compounds, and pladienolide compounds for use in methods of medical treatment. These compounds may be useful in the treatment of cancer, particularly cancers in which agents that target the spliceosome and mutations therein are known to be useful.Type: GrantFiled: April 11, 2019Date of Patent: June 20, 2023Assignee: EISAI R&D MANAGEMENT CO., LTD.Inventors: Andrew Cook, Dominic Reynolds, Cheng Zhong, Ryan Brawn, Shelby Ellery, Thiwanka Samarakoon, Xiang Liu, Sudeep Prajapati, Megan Sheehan, Jason T. Lowe, James Palacino
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Publication number: 20220380352Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. In an embodiment, the splicing modulator comprises a pladienolide or a pladienolide derivative.Type: ApplicationFiled: May 3, 2022Publication date: December 1, 2022Inventors: Ermira PAZOLLI, Silvia BUONAMICI, Thiwanka SAMARAKOON, Sudeep PRAJAPATI, Nathan FISHKIN, James PALACINO, Michael SEILER, Ping ZHU, Andrew COOK, Peter SMITH, Xiang LIU, Shelby ELLERY, Dominic REYNOLDS, Lihua YU, Zhenhua WU, Shouyong PENG, Nicholas CALANDRA, Megan SHEEHAN, Yonghong XIAO
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Patent number: 11352348Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. In an embodiment, the splicing modulator comprises a pladienolide or a pladienolide derivative.Type: GrantFiled: November 30, 2020Date of Patent: June 7, 2022Assignee: EISAI R&D MANAGEMENT CO., LTD.Inventors: Ermira Pazolli, Silvia Buonamici, Thiwanka Samarakoon, Sudeep Prajapati, Nathan Fishkin, James Palacino, Michael Seiler, Ping Zhu, Andrew Cook, Peter Smith, Xiang Liu, Shelby Ellery, Dominic Reynolds, Lihua Yu, Zhenhua Wu, Shouyong Peng, Nicholas Calandra, Megan Sheehan, Yonghong Xiao
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Publication number: 20220081486Abstract: Antibodies, antigen-binding fragments, and conjugates (e.g., antibody-drug conjugates (ADCs) such as those comprising a splicing modulator) that bind to BCMA are disclosed. The disclosure further relates to methods and compositions for use in the treatment of cancer by administering a composition provided herein.Type: ApplicationFiled: June 4, 2021Publication date: March 17, 2022Applicant: Eisai R&D Management Co., Ltd.Inventors: Ryan Henry, Thiwanka Samarakoon, Nathan Fishkin, Ping Zhu, Ermira Pazolli, James Palacino, Juan C. Almagro
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Publication number: 20220031859Abstract: Linker-drug compounds and antibody-drug conjugates that bind to human oncology targets are disclosed. The linker-drug compounds and antibody-drug conjugates comprise a herboxidiene splicing modulator drug moiety. The disclosure further relates to methods and compositions for use in the treatment of neoplastic disorders by administering the antibody-drug conjugates provided herein. The herboxidiene itself is also claimed. Further claims are directed to its use, and to the use of a neoantigen, generated by the herboxidiene or its ADC, or a vaccine against this neoantigen.Type: ApplicationFiled: December 12, 2019Publication date: February 3, 2022Inventors: Nathan Fishkin, Thiwanka Samarakoon, James Palacino, Kenzo Arai, Yoshihiko Kotake, Shinya Okubo, Norio Murai, Masayuki Miyano