Patents by Inventor Rajeevkumar Tawar
Rajeevkumar Tawar 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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Patent number: 12655212Abstract: The present invention relates to humanized anti-claudin-1 antibodies and uses thereof. Hepatitis C virus infection is a leading cause of chronic liver disease and a major indication for liver transplantation. The tight junction protein claudin-1 (CLDN1) is an essential entry factor for HCV and a promising target for therapy. For clinical development, the inventors have humanized a rat anti-CLDN1 antibody produced by genetic immunization that prevent HCV infection and also cure chronically infected human liver chimeric mice. The lead humanized anti-CLDN1 antibody (H3L3) pan-genotypically inhibited HCV pseudoparticle infection of primary human hepatocytes (PHH) without detectable escape. H3L3 efficiently inhibited infection by diverse HCV genotype 3 strains and exhibited marked synergy with direct-acting antivirals (DAAs). The inventors also demonstrate that anti-CLDN1 H3L3 cures persistent HCV infection in human-liver chimeric uPA-SCID mice in monotherapy.Type: GrantFiled: April 26, 2024Date of Patent: June 16, 2026Assignees: INSERM (Institut National de la Santé et de la Recherche Médicale), Université de Strasbourg, Chu Strasbourg, Les Hôpitaux Universitaires de StrasbourgInventors: Thomas Baumert, Rajeevkumar Tawar
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Publication number: 20250122279Abstract: The present invention relates to humanized anti-claudin-1 antibodies and uses thereof. Hepatitis C virus infection is a leading cause of chronic liver disease and a major indication for liver transplantation. The tight junction protein claudin-1 (CLDN1) is an essential entry factor for HCV and a promising target for therapy. For clinical development, the inventors have humanized a rat anti-CLDN1 antibody produced by genetic immunization that prevent HCV infection and also cure chronically infected human liver chimeric mice. The lead humanized anti-CLDN1 antibody (H3L3) pan-genotypically inhibited HCV pseudoparticle infection of primary human hepatocytes (PHH) without detectable escape. H3L3 efficiently inhibited infection by diverse HCV genotype 3 strains and exhibited marked synergy with direct-acting antivirals (DAAs). The inventors also demonstrate that anti-CLDN1 H3L3 cures persistent HCV infection in human-liver chimeric uPA-SCID mice in monotherapy.Type: ApplicationFiled: April 26, 2024Publication date: April 17, 2025Inventors: Thomas BAUMERT, Rajeevkumar TAWAR
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Publication number: 20220411493Abstract: The present invention relates to humanized anti-claudin-1 antibodies and uses thereof. Hepatitis C virus infection is a leading cause of chronic liver disease and a major indication for liver transplantation. The tight junction protein claudin-1 (CLDN1) is an essential entry factor for HCV and a promising target for therapy. For clinical development, the inventors have humanized a rat anti-CLDN1 antibody produced by genetic immunization that prevent HCV infection and also cure chronically infected human liver chimeric mice. The lead humanized anti-CLDN1 antibody (H3L3) pan-genotypically inhibited HCV pseudoparticle infection of primary human hepatocytes (PHH) without detectable escape. H3L3 efficiently inhibited infection by diverse HCV genotype 3 strains and exhibited marked synergy with direct-acting antivirals (DAAs). The inventors also demonstrate that anti-CLDN1 H3L3 cures persistent HCV infection in human-liver chimeric uPA-SCID mice in monotherapy.Type: ApplicationFiled: April 29, 2022Publication date: December 29, 2022Applicants: INSERM (Institut National de la Santé et de la Recherche Médicale, Université de Strasbourg, Chu Strasbourg, Les Hôpitaux Universitaires de StrasbourgInventors: Thomas BAUMERT, Rajeevkumar Tawar
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Patent number: 11365251Abstract: The present invention relates to humanized anti-claudin-1 antibodies and uses thereof. Hepatitis C virus infection is a leading cause of chronic liver disease and a major indication for liver transplantation. For clinical development, the inventors have humanized a rat anti-CLDN1 antibody produced by genetic immunization that prevent HCV infection and also cure chronically infected human liver chimeric mice. The lead humanized anti-CLDN1 antibody (H3L3) pan-genotypically inhibited HCV pseudoparticle infection of primary human hepatocytes (PHH) without detectable escape. H3L3 efficiently inhibited infection by diverse HCV genotype 3 strains and exhibited marked synergy with direct-acting antivirals (DAAs).Type: GrantFiled: October 27, 2020Date of Patent: June 21, 2022Assignees: INSERM (Institut National de la Santé et de la Recherche Médicale), Université de Strasbourg, Chu Strasbourg, Les Hôpitaux Universitaires de StrasbourgInventors: Thomas Baumert, Rajeevkumar Tawar
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Publication number: 20210363216Abstract: The present invention provides bifunctional binding polypeptide comprising a pMHC binding moiety and a PD-1 agonist.Type: ApplicationFiled: May 14, 2019Publication date: November 25, 2021Inventors: Giovanna BOSSI, Carlos REIS, Rajeevkumar TAWAR, Adam CURNOCK, Nicola SMITH
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Publication number: 20210040204Abstract: The present invention relates to humanized anti-claudin-1 antibodies and uses thereof. Hepatitis C virus infection is a leading cause of chronic liver disease and a major indication for liver transplantation. For clinical development, the inventors have humanized a rat anti-CLDN1 antibody produced by genetic immunization that prevent HCV infection and also cure chronically infected human liver chimeric mice. The lead humanized anti-CLDN1 antibody (H3L3) pan-genotypically inhibited HCV pseudoparticle infection of primary human hepatocytes (PHH) without detectable escape. H3L3 efficiently inhibited infection by diverse HCV genotype 3 strains and exhibited marked synergy with direct-acting antivirals (DAAs).Type: ApplicationFiled: October 27, 2020Publication date: February 11, 2021Applicants: INSERM (Institut National de la Santé et de la Recherche Médicale), Université de Strasbourg, Chu Strasbourg, Les Hôpitaux Universitaires de StrasbourgInventors: Thomas Baumert, Rajeevkumar Tawar
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Patent number: 10851160Abstract: The present invention relates to humanized anti-claudin-1 antibodies and uses thereof. Hepatitis C virus infection is a leading cause of chronic liver disease and a major indication for liver transplantation. The tight junction protein claudin-1 (CLDN1) is an essential entry factor for HCV and a promising target for therapy. For clinical development, the inventors have humanized a rat anti-CLDN1 antibody produced by genetic immunization that prevent HCV infection and also cure chronically infected human liver chimeric mice. The lead humanized anti-CLDN1 antibody (H3L3) pan-genotypically inhibited HCV pseudoparticle infection of primary human hepatocytes (PHH) without detectable escape. H3L3 efficiently inhibited infection by diverse HCV genotype 3 strains and exhibited marked synergy with direct-acting antivirals (DAAs). The inventors also demonstrate that anti-CLDN1 H3L3 cures persistent HCV infection in human-liver chimeric uPA-SCID mice in monotherapy.Type: GrantFiled: March 21, 2017Date of Patent: December 1, 2020Assignees: Institut National de la Sante et de la Recherche Medicale, Universite de Strasbourg, Chu Strasbourg, les Hopitaux Universitaires de StrasbourgInventors: Thomas Baumert, Rajeevkumar Tawar
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Publication number: 20190100586Abstract: The present invention relates to humanized anti-claudin-1 antibodies and uses thereof. Hepatitis C virus infection is a leading cause of chronic liver disease and a major indication for liver transplantation. The tight junction protein claudin-1 (CLDN1) is an essential entry factor for HCV and a promising target for therapy. For clinical development, the inventors have humanized a rat anti-CLDN1 antibody produced by genetic immunization that prevent HCV infection and also cure chronically infected human liver chimeric mice. The lead humanized anti-CLDN1 antibody (H3L3) pan-genotypically inhibited HCV pseudoparticle infection of primary human hepatocytes (PHH) without detectable escape. H3L3 efficiently inhibited infection by diverse HCV genotype 3 strains and exhibited marked synergy with direct-acting antivirals (DAAs). The inventors also demonstrate that anti-CLDN1 H3L3 cures persistent HCV infection in human-liver chimeric uPA-SCID mice in monotherapy.Type: ApplicationFiled: March 21, 2017Publication date: April 4, 2019Applicants: INSERM (Institut National de la Santé et de la Recherche Médicale), Université de Strasbourg, Chu Strasbourg, Les Hôpitaux Universitaires de StrasbourgInventors: Thomas Baumert, Rajeevkumar Tawar