Patents by Inventor Josbert Maarten Metselaar

Josbert Maarten Metselaar 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).

  • Publication number: 20230293432
    Abstract: The invention relates to a polymeric micelle comprising a block copolymer comprising a polyethylene glycol (PEG) hydrophilic block and a hydrophobic block, and a compound according to formula (I) or formula (III) encapsulated within said polymeric micelle and to uses thereof.
    Type: Application
    Filed: July 6, 2021
    Publication date: September 21, 2023
    Inventors: Yang SHI, Twan LAMMERS, Josbert Maarten METSELAAR
  • Publication number: 20200253871
    Abstract: The invention relates to a pharmaceutical composition comprising liposomes composed of non-charged vesicle-forming lipids, optionally including not more than 10 mole percent of negatively charged vesicle-forming lipids and/or not more than 10 mole percent of PEGylated lipids, the liposomes having a selected mean particle diameter in the size range of 40-200 nm and comprising a first corticosteroid in water soluble form, for the site-specific treatment of inflammatory disorders in humans, providing in human patients a fast, strong, and durable anti-inflammatory effect for at least 2 weeks at a dose of at most 5 mg/kg body weight of prednisolone or an equipotent dose corticosteroid other than prednisolone at a treatment frequency of at most once per two weeks.
    Type: Application
    Filed: November 11, 2019
    Publication date: August 13, 2020
    Applicant: LAURENTIA HOLDING B.V.
    Inventor: Josbert Maarten METSELAAR
  • Patent number: 10471010
    Abstract: The invention relates to a pharmaceutical composition comprising liposomes composed of non-charged vesicle-forming lipids, optionally including not more than 10 mole percent of negatively charged vesicle-forming lipids and/or not more than 10 mole percent of PEGylated lipids, the liposomes having a selected mean particle diameter in the size range of 40-200 nm and comprising a first corticosteroid in water soluble form, for the site-specific treatment of inflammatory disorders in humans, providing in human patients a fast, strong, and durable anti-inflammatory effect for at least 2 weeks at a dose of at most 5 mg/kg body weight of prednisolone or an equipotent dose corticosteroid other than prednisolone at a treatment frequency of at most once per two weeks.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: November 12, 2019
    Assignee: ENCELADUS PHARMACEUTICALS B.V.
    Inventor: Josbert Maarten Metselaar
  • Publication number: 20190151236
    Abstract: The invention relates to topical injection in inflamed lesions or areas with liposomal corticosteroids.
    Type: Application
    Filed: April 28, 2017
    Publication date: May 23, 2019
    Applicants: Enceladus Pharmaceuticals B.V., Universiteit Utrechat Holding B.V., Singapore Health Services PTE. LTD.
    Inventors: Josbert Maarten METSELAAR, Chee Wai WONG, Bertrand Marcel Stanislas CZARNY, Tina Tzee Ling WONG
  • Publication number: 20180289809
    Abstract: A formulation includes a continuous hydrophobic phase, a hydrophilic phase, at least one hydrophilic compound substantially dissolved in the hydrophilic phase, and a stabilizing component. The stabilizing component can contain D-a-tocopheryl polyethylene glycol 1000 succinate (TPGS) and/or at least one emulsifier having a hydrophilic-lipophilic balance (HLB) value of at least 10. In one alternative, the stabilizing component contains a first, polysorbate emulsifier having an HLB value of at least 10, and a second emulsifier having an HLB value of less than 10.
    Type: Application
    Filed: January 22, 2016
    Publication date: October 11, 2018
    Inventors: Chantal Burnison, Josbert Maarten Metselaar, Chirstopher Stahl
  • Publication number: 20150050329
    Abstract: The invention relates to a pharmaceutical composition comprising liposomes composed of non-charged vesicle-forming lipids, optionally including not more than 10 mole percent of negatively charged vesicle-forming lipids and/or not more than 10 mole percent of PEGylated lipids, the liposomes having a selected mean particle diameter in the size range of 40-200 nm and comprising a first corticosteroid in water soluble form, for the site-specific treatment of inflammatory disorders in humans, providing in human patients a fast, strong, and durable anti-inflammatory effect for at least 2 weeks at a dose of at most 5 mg/kg body weight of prednisolone or an equipotent dose corticosteroid other than prednisolone at a treatment frequency of at most once per two weeks.
    Type: Application
    Filed: November 2, 2012
    Publication date: February 19, 2015
    Inventor: Josbert Maarten Metselaar
  • Publication number: 20140287027
    Abstract: The invention relates to the use of a composition comprising a corticosteroid encapsulated in a vesicle for the manufacture of a medicament for treating cancer, such as the use of a composition comprising a corticosteroid and liposomes, the liposomes comprising a non-charged vesicle-forming lipid, and optionally an amphipathic vesicle-forming lipid and/or a negatively charged vesicle-forming lipid. The invention further relates to a new pharmaceutical composition suitable for treating cancer, and especially solid primary and secondary tumors.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 25, 2014
    Applicant: Enceladus Pharmaceuticals B.V.
    Inventors: Raymond Michel Schiffelers, Josbert Maarten Metselaar, Grietje Molema, Gerrit Storm
  • Publication number: 20140255474
    Abstract: A pharmaceutical composition for parenteral administration, comprising liposomes composed of non-charged vesicle-forming lipids, optionally including not more than five (5) mole percent of charged vesicle-forming lipids, the liposomes having a selected mean particle diameter in the size range between about 40-200 nm and containing a water soluble corticosteroid for the site-specific treatment of inflammatory disorders, is provided.
    Type: Application
    Filed: May 27, 2014
    Publication date: September 11, 2014
    Applicant: Enceladus Pharmaceuticals B.V.
    Inventor: Josbert Maarten Metselaar
  • Patent number: 7955618
    Abstract: A pharmaceutical composition for parenteral administration, comprising liposomes composed of non-charged vesicle-forming lipids, including up to 20 mole percent of an amphipathic vesicle-forming lipid derivatized with polyethyleneglycol, and optionally including not more than 10 mole percent of negatively charged vesicle-forming lipids, the liposomes having a selected mean particle diameter in the size range between about 40-200 nm and containing a water soluble corticosteroid for the site-specific treatment of inflammatory disorders, is provided.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: June 7, 2011
    Assignee: Enceladus Pharmaceuticals B.V.
    Inventors: Josbert Maarten Metselaar, Marca Henriette M. Wauben, Gerrit Storm
  • Publication number: 20100145018
    Abstract: Lipid conjugates of a poly-(amino acid), a poly-(amino acid derivative) or a poly-(amino acid analogue), such as poly-[N-(2-hydroxyethyl)-glutamine](PHEG), are provided.
    Type: Application
    Filed: July 6, 2009
    Publication date: June 10, 2010
    Applicant: Astellas Pharma Europe BV
    Inventors: Josbert Maarten Metselaar, Wilhelmus Everardus Hennick, Tom De Vringer, Leonardus Wilhelmus Theodorus De Boer, Christien Oussoren, Gerrit Storm, Peter Bruin
  • Publication number: 20100143452
    Abstract: The present invention relates to liposomal compositions comprising polyphenol in the interior of a colloidal carrier, and especially to the use of such compositions in the treatment of cancer or in the inhibition of cancer growth and in the treatment of inflammatory and autoimmune conditions. More specifically, the invention relates to a method for targeting a polyphenol to tumor tissue, or to sites in the body requiring anti-inflammatory activity or activity against autoimmune conditions. Furthermore, the present invention describes a method of post-loading a polyphenol derivate such as caffeic acid into a liposome.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 10, 2010
    Applicant: Universiteit Utrecht Holding B.V.
    Inventors: Raymond Michel Schiffelers, Josbert Maarten Metselaar, Gerrit Storm
  • Publication number: 20100143453
    Abstract: The present invention relates to compositions comprising non-steroidal anti-inflammatory compounds, and especially to the use of such compositions in the treatment of cancer or in the inhibition of cancer growth. More specifically, the invention relates to a method for targeting an anti-inflammatory compound to tumor tissue.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 10, 2010
    Inventors: Raymond Michel Schiffelers, Josbert Maarten Metselaar, Gerrit Storm
  • Publication number: 20090226509
    Abstract: A pharmaceutical composition for parenteral administration, comprising liposomes composed of non-charged vesicle-forming lipids, optionally including not more than five (5) mole percent of charged vesicle-forming lipids, the liposomes having a selected mean particle diameter in the size range between about 40-200 nm and containing a water soluble corticosteroid for the site-specific treatment of inflammatory disorders, is provided.
    Type: Application
    Filed: May 5, 2009
    Publication date: September 10, 2009
    Applicant: Enceladus Pharmaceuticals B.V.
    Inventor: Josbert Maarten Metselaar
  • Publication number: 20040254352
    Abstract: Lipid conjugates of a poly-(amino acid), a poly-(amino acid derivative) or a poly-(amino acid analogue), such as poly-[N-(2-hydroxyethyl)-glutamine](PHEG), are provided.
    Type: Application
    Filed: July 23, 2004
    Publication date: December 16, 2004
    Inventors: Josbert Maarten Metselaar, Wilhelmus Everardus Hennick, Tom De Vringer, Leonardus Wilhelmus Theodorus De Boer, Christien Oussoren, Gerrit Storm, Peter Bruin
  • Publication number: 20040241222
    Abstract: Colloidal carrier compositions, comprising an active agent and a lipid conjugate of a poly-(amino acid), a poly-(amino acid derivative) or poly-(amino acid analogue), such as poly-[N-(2-hydroxyethyl)-glutamine] (PHEG), are provided.
    Type: Application
    Filed: June 17, 2004
    Publication date: December 2, 2004
    Inventors: Josbert Maarten Metselaar, Wilhelmus Evardus Hennick, Tom De Vringer, Leonardus Wilhelmus Theodorus De Boer, Christien Oussoren, Gerrit Storm, Peter Bruin
  • Publication number: 20040037875
    Abstract: A pharmaceutical composition for parenteral administration, comprising liposomes composed of non-charged vesicle-forming lipids, including up to 20 mole percent of an amphipathic vesicle-forming lipid derivatized with polyethyleneglycol, and optionally including not more than 10 mole percent of negatively charged vesicle-forming lipids, the liposomes having a selected mean particle diameter in the size range between about 40-200 nm and containing a water soluble corticosteroid for the site-specific treatment of inflammatory disorders, is provided.
    Type: Application
    Filed: June 5, 2003
    Publication date: February 26, 2004
    Inventors: Josbert Maarten Metselaar, Marca Henriette M. Wauben, Gerrit Storm