Patents by Inventor Sami Chtourou

Sami Chtourou 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).

  • Patent number: 11553712
    Abstract: The disclosure relates to uses, methods and compositions for the inactivation of pathogens in biological compositions, using a glycol as a pathogen inactivating agent.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: January 17, 2023
    Assignee: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventor: Sami Chtourou
  • Publication number: 20200095326
    Abstract: Disclosed is a pharmaceutical composition including, in a pharmaceutically acceptable carrier: at least one anti-CD303 antibody; and at least one anti-AMHRII antibody. Also disclosed is the combination of the two aforementioned antibodies a) and b) to form a combination product to be used simultaneously, separately or spread out over a period of time, for the prevention or treatment of urogenital cancers. Also disclosed is a method for preventing or treating an urogenital cancer in a subject in need thereof, such method including administering to the subject products containing: at least one anti-CD303 antibody; and at least one anti-AMHRII antibody.
    Type: Application
    Filed: December 15, 2017
    Publication date: March 26, 2020
    Inventors: Abdessatar Sami CHTOUROU, Nathalie FOURNIER, Christophe DE ROMEUF
  • Patent number: 10562957
    Abstract: The invention relates to an albumin-purification method comprising a step consisting in subjecting an aqueous albumin solution, with a concentration of between 15 g/l and 80 g/l and a pH of not less than 7, to nanofiltration in a temperature range of between 15 DEG C. and 55 DEG C. The invention also relates to: a virally-safe aqueous albumin solution which can be obtained using the inventive method and in which the sites for the transport and binding of the active therapeutic ingredients of the albumin are available; and an albumin composition for therapeutic use, which is obtained by adapting the albumin solution that is intended for clinical use.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: February 18, 2020
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Paul Boulange, Sami Chtourou, Stephane Boyer, Roland Schmitthaeusler, Bruno Padrazzi
  • Publication number: 20190338269
    Abstract: Disclosed is a protein that is a factor X variant including a mutated sequence of SEQ ID NO:1; at its N-terminus, the protein includes the signal peptide of sequence SEQ ID NO:7 and a propeptide that differs from the natural factor X propeptide.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 7, 2019
    Inventors: Abdessatar Sami CHTOUROU, Jean-Luc PLANTIER, Toufik ABACHE
  • Publication number: 20190330369
    Abstract: Disclosed is a pharmaceutical composition including, in a pharmaceutically acceptable carrier: a) at least one anti-CD303 antibody; and b) at least one anti-HER2 antibody. Also disclosed is the combination of the two aforementioned antibodies a) and b) to form combination products to be used simultaneously, separately or spread out over a period of time, for the prevention or treatment of HER2-positive cancer.
    Type: Application
    Filed: December 15, 2017
    Publication date: October 31, 2019
    Inventors: Abdessatar Sami CHTOUROU, Nathalie FOURNIER, Christophe DE ROMEUF
  • Publication number: 20190254276
    Abstract: The disclosure relates to uses, methods and compositions for the inactivation of pathogens in biological compositions, using a glycol as a pathogen inactivating agent.
    Type: Application
    Filed: October 17, 2018
    Publication date: August 22, 2019
    Applicant: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventor: Sami Chtourou
  • Patent number: 10364425
    Abstract: The invention is related to a composition of recombinant or transgenic Factor VII, each molecule of Factor VII of the composition exhibiting two N-glycosylation sites, wherein, among all the molecules of FVII of the composition, the rate of Gal?1,3G al glycan moieties is comprised between 0 and 4%. The invention is also related to a process for preparing such a composition of FVII.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: July 30, 2019
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Abdessatar Sami Chtourou, Emmanuel Nony, Nicolas Bihoreau
  • Patent number: 10344272
    Abstract: The invention is related to a composition of recombinant or transgenic Factor VII, each molecule of Factor VII of the composition exhibiting two N-glycosylation sites, wherein, among all the molecules of FVII of the composition, the proportion of Gal?1,3Gal glycan moieties is comprised between 0 and 4%. The invention is also related to a process for preparing such a composition of FVII.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: July 9, 2019
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Abdessatar Sami Chtourou, Emmanuel Nony, Nicolas Bihoreau
  • Publication number: 20190002567
    Abstract: Disclosed is an anti-CD303 protein antibody for use in the prophylaxis or therapy of a tumor, involving plasmacytoid dendritic cell activation in the environment of the tumor, said plasmacytoid dendritic cells not being the cause of the tumor.
    Type: Application
    Filed: December 16, 2016
    Publication date: January 3, 2019
    Inventors: Abdessatar Sami CHTOUROU, Nathalie FOURNIER
  • Patent number: 9982247
    Abstract: An anti-Factor VII affinity ligand that is particularly useful for purifying recombinant human activated Factor VII from transgenic sources. The affinity ligand combined with other orthogonal chromatographic steps allows the preparation of a highly purified FVII solution fully activated free of aggregates with a low percentage of degraded or oxidized FVII forms.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: May 29, 2018
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Damien Bataille, Michel Nogre, Abdessatar Sami Chtourou
  • Publication number: 20180142036
    Abstract: The invention relates to a composition strongly enriched with anti-A and/or anti-B polyclonal immunoglobulins, comprising polyclonal human immunoglobulins, characterised in that at least 80 wt.-% of the polyclonal human immunoglobulins present in the composition are anti-A or anti-B polyclonal human immunoglobulins, for use as a drug, particularly in the treatment of polycythemia and/or autoimmune diseases, and in particular peripheral autoimmune thrombocytopenia.
    Type: Application
    Filed: May 6, 2016
    Publication date: May 24, 2018
    Applicant: Laboratoire Francais du Fractionnement et des Biotechnologies
    Inventor: Abdessatar Sami CHTOUROU
  • Publication number: 20170296694
    Abstract: Disclosed is a thrombin-free, liquid biological glue for therapeutic use, including fibrinogen and factor VIIa. The ratio of fibrinogen concentration to FVIIa concentration is 20000:1 to 1000:1, with the concentrations being expressed in weight per volume. The fibrinogen concentration is lower than 60 mg/ml. Also disclosed are a kit for preparing such a biological glue, a method to prepare the glue, and a medicament.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 19, 2017
    Applicant: Laboratoire Francais du Fractionnement et des Biotechnologies
    Inventors: Abdessatar Sami CHTOUROU, Jean-Luc PLANTIER
  • Publication number: 20170166626
    Abstract: The invention relates to an albumin-purification method comprising a step consisting in subjecting an aqueous albumin solution, with a concentration of between 15 g/l and 80 g/l and a pH of not less than 7, to nanofiltration in a temperature range of between 15 DEG C and 55 DEG C. The invention also relates to: a virally-safe aqueous albumin solution which can be obtained using the inventive method and in which the sites for the transport and binding of the active therapeutic ingredients of the albumin are available; and an albumin composition for therapeutic use, which is obtained by adapting the albumin solution that is intended for clinical use.
    Type: Application
    Filed: February 27, 2017
    Publication date: June 15, 2017
    Applicant: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOT ECHNOLOGIES
    Inventors: Paul BOULANGE, Sami CHTOUROU, Stephane BOYER, Roland SCHMITTHAEUSLER, Bruno PADRAZZI
  • Publication number: 20170121402
    Abstract: The present invention relates to a pharmaceutical composition for oral delivery, including an anti tumour necrosis factor alpha (TNF?) antibody, preferably a monoclonal antibody produced in the milk of a transgenic non-human animal, and which can be combined advantageously with caprylic acid, and is preferably in a form that is suitable for targeted release of the antibody in the intestine.
    Type: Application
    Filed: June 18, 2015
    Publication date: May 4, 2017
    Applicant: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventor: Abdessatar Sami Chtourou
  • Patent number: 9611311
    Abstract: The invention relates to an albumin-purification method comprising a step consisting in subjecting an aqueous albumin solution, with a concentration of between 15 g/l and 80 g/l and a pH of not lass than 7, to nanofiltration in a temperature range of between 15 DEG C and 55 DEG C. The invention also relates to: a virally-safe aqueous albumin solution which can be obtained using the inventive method and in which the sites for the transport and binding of the active therapeutic ingredients of the albumin are available; and an albumin composition for therapeutic use, which is obtained by adapting the albumin solution that is intended for clinical use.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: April 4, 2017
    Assignee: LABRATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Paul Boulange, Sami Chtourou, Stephane Boyer, Roland Schmitthaeusler, Bruno Padrazzi
  • Patent number: 9463241
    Abstract: This invention is related to a stabilizing formulation for immunoglobulins G compositions comprising a sugar alcohol, glycine and a non-ionic detergent, which is suitable for the stabilization of immunoglobulins G compositions in liquid form and in lyophilized form. The invention also relates to an immunoglobulins G composition in liquid form or in lyophilized form comprising said stabilizing formulation.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 11, 2016
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Annie Bardat, Edith Begin, Nassirah Khandoudi, Olivier Just, Sami Chtourou, Roland Schmitthaeusler
  • Patent number: 9359610
    Abstract: A method for purifying GLA-domain coagulation proteins, includes the following steps: a) bringing a sample containing one or more GLA-domain coagulation proteins into contact with an affinity substrate on which nucleic aptamers which bind specifically to the GLA-domain coagulation proteins are immobilized, in order to form complexes between (i) the nucleic aptamers and (ii) the GLA-domain coagulation protein(s), b) releasing the GLA-domain coagulation protein(s) from the complexes formed in step a), and c) recovering the GLA-domain coagulation protein(s) in a purified form.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 7, 2016
    Assignee: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventors: Gerald Perret, Sami Chtourou, Nicolas Bihoreau
  • Publication number: 20160089422
    Abstract: The invention relates to a process for inactivating pathological prion proteins (PrPsc) in a sample or a material which may be contaminated by a pathological prion protein, wherein the sample or the material which may be contaminated by a pathological prion protein is put into contact with at least one methionine sulfoxide reductase.
    Type: Application
    Filed: May 15, 2014
    Publication date: March 31, 2016
    Inventors: Abdessatar Sami Chtourou, Benoît Flan
  • Publication number: 20150152162
    Abstract: The invention relates to an albumin-purification method comprising a step consisting in subjecting an aqueous albumin solution, with a concentration of between 15 g/l and 80 g/l and a pH of not lass than 7, to nanofiltration in a temperature range of between 15 DEG C and 55 DEG C. The invention also relates to: a virally-safe aqueous albumin solution which can be obtained using the inventive method and in which the sites for the transport and binding of the active therapeutic ingredients of the albumin are available; and an albumin composition for therapeutic use, which is obtained by adapting the albumin solution that is intended for clinical use.
    Type: Application
    Filed: February 2, 2015
    Publication date: June 4, 2015
    Applicant: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOTIES
    Inventors: Paul BOULANGE, Sami CHTOUROU, Stephane BOYER, Roland SCHMITTHAEUSLER, Bruno PADRAZZI
  • Patent number: 8802620
    Abstract: There is provided in accordance with the practice of this invention a demannosylated Factor VIII, the immunogenicity of which is substantially decreased or abolished in Human. The modified factor VIII is disclosed together with the modified amino acid sequence, changed by at least one substitution. The modified factor VIII is useful for hemophiliacs, either to avoid or prevent the action of inhibitory anti-FVIII antibodies.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: August 12, 2014
    Assignees: Institut National de la Sante et de la Recherche Medicale (INSERM), LFB Biotechnologies
    Inventors: Abdessatar Sami Chtourou, Sébastien Lacroix-Desmazes, Srinivas Kaveri, Suryasarathi Dasgupta, Jagaadeesh Bayry