Patents by Inventor Erik Arstad

Erik Arstad 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: 20090317328
    Abstract: Novel compounds of formula (I): suitable for use as in vivo imaging agents are provided as well as precursors suitable for the preparation of said compounds. The present invention also provides pharmaceuticals comprising the compounds and kits for the preparation of the pharmaceuticals. Furthermore, use of the compounds for imaging peripheral benzodiazepine receptors in a subject is provided, in particular for imaging pathological conditions in which PBR are upregulated, e.g. Parkinson's disease, multiple sclerosis, Alzheimer's disease and Huntington's disease, neuropathic pain, arthritis, asthma, atherosclerosis and cancer.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 24, 2009
    Inventors: Erik Arstad, Edward George Robins, Yongjun Zhao
  • Publication number: 20090312564
    Abstract: The invention relates to methods and apparatus for purifying a radiolabelled compound. The method comprises (i) passing a crude reaction mixture comprising the desired radiolabelled compound and one or more contaminants in a solvent through a narrow bore vessel at elevated temperature such that the organic solvent and either the radiolabelled compound or one or more contaminants is vaporised forming a vaporised component, and (ii) collecting the resulting vaporised component by condensing into a collection vessel.
    Type: Application
    Filed: July 25, 2007
    Publication date: December 17, 2009
    Inventor: Erik Arstad
  • Publication number: 20090311177
    Abstract: The invention relates to radiodiagnostic and radiotherapeutic agents, including biologically active vectors labelled with radionuclides. It further relates to methods and reagents labelling a vector such as a peptide comprising reaction of a compound of formula (I) with a compound of formula (II): R*-L2-N3 (II) or, a compound of formula (III) with a compound of formula (IV) in the presence of a Cu (I) catalyst. The resultant labelled conjugates are useful as diagnostic agents, for example, as radiopharmaceuticals more specifically for use in Positron Emission Tomography (PET) or Single Photon Emission Computed Tomography (SPECT) or for radiotherapy.
    Type: Application
    Filed: December 9, 2005
    Publication date: December 17, 2009
    Inventors: Erik Arstad, Matthias Eberhard Glaser
  • Publication number: 20090252666
    Abstract: The invention relates to methods and apparatus for drying [18F]fluoride which comprises (i) passing a [18F]fluoride solution comprising water, a solvent, [18F]fluoride, and a cationic counterion through a narrow bore vessel at elevated temperature such that the water and solvent are vaporised forming a vaporised component, and (ii) collecting the resulting vaporised component by condensing into a collection vessel.
    Type: Application
    Filed: July 25, 2007
    Publication date: October 8, 2009
    Inventor: Erik Arstad
  • Publication number: 20090247793
    Abstract: The invention relates to new processes for preparation of 18F-fluoroalkyl halides suitable for use in labelling of Positron Emission Tomography (PET) radiotracers. The process of preparation comprises the step of reacting a 18F-fluoroacylhalide with Wilkinson's catalyst.
    Type: Application
    Filed: December 8, 2006
    Publication date: October 1, 2009
    Inventor: Erik Arstad
  • Publication number: 20090220420
    Abstract: The present invention provides novel tetracyclic indole compounds of Formula (I) either as in vivo imaging agents or as therapeutic agents. A method for the preparation of the in vivo imaging agent compound is also provided by the invention, as well as a precursor for use in said method. Pharmaceutical compositions comprising the compounds of the invention are additionally provided. Where the pharmaceutical composition comprises a compound suitable for in vivo imaging, a kit is provided for the preparation of the pharmaceutical composition. In a further aspect, use of the compound for in vivo imaging or treatment of conditions associated with PBR is provided.
    Type: Application
    Filed: November 20, 2006
    Publication date: September 3, 2009
    Inventors: Erik Arstad, Ian Wilson, Sajinder Kaur Luthra, Frank Brady, Bengt Langstrom, Farhad Karimi, Edward George Robins, Bo Shan
  • Publication number: 20090155168
    Abstract: The invention relates to a compound of formula (I) having use for in vivo imaging of the NR2B subtype of the NMDA receptor.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 18, 2009
    Inventors: Erik Arstad, Gjermund Henriksen
  • Publication number: 20090087379
    Abstract: The present invention provides a process for [18F]-fluorination of biomolecules containing a primary amino group such as proteins and peptides and in particular of peptides. The invention further provides reagents for this process, in particular 18F-labelled prosthetic groups for use in the preparation as well as non-labelled intermediates useful in the preparation of the [18F]-labelled prosthetic groups. [18F]-labelled compounds useful as radiopharmaceuticals, specifically for use in Positron Emission Tomography (PET) are also provided.
    Type: Application
    Filed: April 20, 2007
    Publication date: April 2, 2009
    Inventors: Erik Arstad, Matthias Eberhard Glaser
  • Publication number: 20080292552
    Abstract: The invention relates to novel 18F-labelled compounds which may be suitable for use as Positron Emission Tomography (PET) radiotracers, and to processes for preparation of such. The 18F-labelled compounds of the invention comprise a [18F]fluoroalkenyl group.
    Type: Application
    Filed: December 15, 2006
    Publication date: November 27, 2008
    Inventors: Erik Arstad, Edward George Robins
  • Publication number: 20080161537
    Abstract: Provided herein are methods for introducing fluorine atom onto a biomolecule comprising: (i) providing a linker comprising a thiol-reactive terminus and an azido/alkyne-reactive terminus; (ii) reacting the thiol-reactive terminus of the linker with a biomolecule comprising at least one thiol group or a reactive derivative thereof; and (iii) subsequently reacting the azido/alkyne-reactive terminus of the linker with a fluorine-substituted azide or alkyne respectively. Also provided are compositions and method of synthesis of bifunctional linkers and bioconjugates as well as radio-diagnostic agents comprising fluorine-labeled biomolecules.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 3, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Omayra Liz Padilla De Jesus, Ernest William Kovacs, Matthias Eberhard Glaser, Erik Arstad, Faisal Ahmed Syud
  • Publication number: 20070244324
    Abstract: The present invention involves the application of ROMP polymers to the internal surfaces of a device for the purpose of carrying out a solid-phase radiochemical process within the device. An additional embodiment of the invention is an automated synthesis system comprising a number of devices of the invention in order that a series of processes can be carried out in direct sequence. In a preferred embodiment, the present invention is a microfabricated device.
    Type: Application
    Filed: December 23, 2004
    Publication date: October 18, 2007
    Inventors: Frank Brady, Nicholas Jefferey, Sajinder Luthra, Erik Arstad
  • Publication number: 20070148647
    Abstract: The invention relates to novel processes for the purification of radiolabelled tracers, using a solid-support bound scavenger group.
    Type: Application
    Filed: May 11, 2005
    Publication date: June 28, 2007
    Inventors: Sajinder Luthra, Frank Brady, Nicholas Jeffery, Erik Arstad, Alexander Gibson, Duncan Wynn, Alan Cuthbertson, Magne Solbakken
  • Publication number: 20020042539
    Abstract: The present invention provides a pharmaceutical compound, or pharmaceutically acceptable salt thereof, for use in medicine, wherein said compound is of formula I 1
    Type: Application
    Filed: July 9, 2001
    Publication date: April 11, 2002
    Inventors: Erik Arstad, Lars Skattebol