Patents Assigned to XenoPort
  • Patent number: 7566738
    Abstract: Acyloxyalkyl carbamate prodrugs of 3-aminopropylsulfinic acid and analogs thereof, pharmaceutical compositions of 3-aminopropylsulfinic acid and analogs thereof, methods of making prodrugs of 3-aminopropylsulfinic acid and analogs thereof, methods of using prodrugs of 3-aminopropylsulfinic acid and analogs thereof, and pharmaceutical compositions thereof for treating or preventing diseases or disorders such as spasticity or gastroesophageal reflux disease are disclosed. Acyloxyalkyl carbamate prodrugs of 3-aminopropylsulfinic acid and analogs thereof and sustained release oral dosage forms thereof, which are suitable for oral administration, are also disclosed.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: July 28, 2009
    Assignee: XenoPort, Inc.
    Inventor: Mark A. Gallop
  • Patent number: 7563821
    Abstract: (2R)-2-Phenylcarbonyloxypropyl(2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate and crystalline form thereof, methods of making the same, pharmaceutical compositions thereof, and methods of using the same to treat diseases or disorders such as Parkinson's disease are provided.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: July 21, 2009
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Xuedong Dai, Cindy X. Zhou, Jianhua Li, Mark Q. Nguyen
  • Patent number: 7560483
    Abstract: The present invention provides a method for synthesizing 1-(acyloxy)-alkyl derivatives from 1-acyl-alkyl derivatives, which typically proceeds stereospecifically, in high yield, does not require the use of activated intermediates and/or toxic compounds and is readily amendable to scale-up. The current invention also provides 1-acyl-alkyl derivatives of known drug components and methods for synthesizing these 1-acyl-alkyl derivatives.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: July 14, 2009
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat, Cindy X. Zhou
  • Patent number: 7550506
    Abstract: The present invention provides propofol prodrugs, methods of making propofol prodrugs, pharmaceutical compositions of propofol prodrugs and methods of using propofol prodrugs and pharmaceutical compositions thereof to treat or prevent diseases or disorders such as migraine headache pain and post-chemotherapy or post-operative surgery nausea and vomiting.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: June 23, 2009
    Assignee: XenoPort, Inc.
    Inventors: Feng Xu, Mark A. Gallop, Vivek Sasikumar
  • Publication number: 20090148884
    Abstract: LAT1 is consistently expressed at high levels in brain microvessel endothelial cells. Disclosed herein are assays for determining whether a test material/molecule is a substrate for, and/or is actively transported by, the LAT1 transporter, and therefore a candidate substrate for crossing the blood brain barrier. The assays are useful in screening for therapeutic, cytotoxic or imaging compounds used in the treatment or diagnosis of neurological diseases.
    Type: Application
    Filed: November 7, 2008
    Publication date: June 11, 2009
    Applicant: XENOPORT, INC.
    Inventor: NOA ZERANGUE
  • Publication number: 20090137834
    Abstract: Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
    Type: Application
    Filed: February 2, 2009
    Publication date: May 28, 2009
    Applicant: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Mark A. Gallop, Cindy X. Zhou, Mark Nguyen, Xuedong Dai, Jianhua Li, Kenneth C. Cundy, Nelson L. Jumbe
  • Patent number: 7534813
    Abstract: Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: May 19, 2009
    Assignee: XenoPort, Inc.
    Inventors: Jia-Ning Xiang, Mark A. Gallop, Cindy X. Zhou, Mark Nguyen, Xuedong Dai, Jianhua Li, Kenneth C. Cundy, Nelson L. Jumbe
  • Patent number: 7534574
    Abstract: Reagents and methods for detecting target proteins in a sample are provided. The reagents include a replicable genetic package, a protein displayed on an exterior surface of the package that is expressed from a heterologous nucleic acid borne by the package, and one or more antibodies complexed with the expressed protein and which have an open binding site for a target protein. Thus, a segment of the nucleic acid encodes for an epitope that is shared by the expressed polypeptide and the target protein. The reagents can be utilized individually or as part of a library or an array to bind target proteins within protein samples to form one or more complexes. By determining the sequence of the segment of the heterologous nucleic acid of a package within a complex, one can identify the target protein since the segment encodes for an epitope that is shared by the expressed and target proteins.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: May 19, 2009
    Assignee: XenoPort, Inc.
    Inventors: William J. Dower, Steven E. Cwirla
  • Publication number: 20090124582
    Abstract: Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, pharmaceutical compositions comprising acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, methods of making prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, methods of using prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof and pharmaceutical compositions thereof for treating or preventing diseases or disorders such as spasticity or gastroesophageal reflux disease are disclosed. Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof and sustained release oral dosage forms thereof, which are suitable for oral administration, are also disclosed.
    Type: Application
    Filed: January 14, 2009
    Publication date: May 14, 2009
    Applicant: XenoPort, Inc.
    Inventor: Mark A Gallop
  • Patent number: 7531572
    Abstract: Acyloxyalkyl carbamate prodrugs of ?-amino acids, pharmaceutical compositions thereof, methods of making acyloxyalkyl carbamate prodrugs of ?-amino acids and methods of using acyloxyalkyl carbamate prodrugs of ?-amino acids, and pharmaceutical compositions thereof to treat a disease are disclosed. Acyloxyalkyl carbamate prodrugs of ?-amino acids suitable for oral administration using sustained release dosage forms are also disclosed.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: May 12, 2009
    Assignee: XenoPort, Inc.
    Inventors: Xuedong Dai, Archana Gangakhedkar, Jia-Ning Xiang, Mark A Gallop
  • Publication number: 20090118365
    Abstract: Methods of treating neuropathic pain, musculoskeletal pain, and back spasm associated with musculoskeletal pain in a patient comprising orally administering a therapeutically effective dose of a prodrug of a GABAB agonist having a high oral bioavailability of the corresponding GABAB agonist are disclosed.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 7, 2009
    Applicant: XenoPort, Inc
    Inventors: Joseph C. Benson, III, Peter A. Virsik, Daniel M. Canafax
  • Publication number: 20090099253
    Abstract: Internally masked neopentyl sulfonyl ester prodrugs of acamprosate, pharmaceutical compositions comprising such prodrugs, and methods of using such prodrugs and compositions thereof for treating diseases are disclosed. In particular, acamprosate prodrugs exhibiting enhanced oral bioavailability and methods of using acamprosate prodrugs to treat neurodegenerative disorders, psychotic disorders, mood disorders, anxiety disorders, somatoform disorders, movement disorders, substance abuse disorders, binge eating disorder, cortical spreading depression related disorders, tinnitus, sleeping disorders, multiple sclerosis, and pain are disclosed.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 16, 2009
    Applicant: XenoPort, Inc.
    Inventors: Yunxiao Li, Bernd Jandeleit, Mark A. Gallop, Noa Zerangue, Peter A. Virsik, Wolf-Nicolas Fischer
  • Patent number: 7517643
    Abstract: Replicable genetic packages and collections thereof that display various compounds are provided. In some instances, the replicable genetic packages include nucleic acid tags that serve to record a characteristic of the compound or compounds that are attached to the replicable genetic package. The invention further provides a number of different methods for using the replicable genetic packages to screen a library of compounds for a desired biological activity.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: April 14, 2009
    Assignee: XenoPort, Inc.
    Inventors: Ronald W. Barrett, William J. Dower, Mark Gallop, Thomas F. Woiwode, Steven E. Cwirla
  • Publication number: 20090092553
    Abstract: MCT1 and MCT4 are expressed at higher levels in many cancer cells than comparable normal cells of the same tissue. Disclosed herein are assays for determining whether a test material/molecule is a substrate for, and/or is actively transported by, the MCT1 and/or MCT4, as well as inhibitors and substrates of MCT1 and/or MCT4, methods of isolating the same, and methods of using the same for treatment or diagnosis of cancer.
    Type: Application
    Filed: May 16, 2008
    Publication date: April 9, 2009
    Applicant: Xenoport,Inc.
    Inventors: Noa Zerangue, Laxminarayan Bhat
  • Patent number: 7511158
    Abstract: Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the synthesis of 1-(acyloxy)-alkyl carbamates are also described.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: March 31, 2009
    Assignee: XenoPort, Inc.
    Inventors: Mark A. Gallop, Xuedong Dai, Randall A. Scheuerman, Stephen P. Raillard, Suresh K. Manthati, Fenmei Yao, Thu Phan, Maria Ludwikow, Ge Peng, Seema Bhat
  • Patent number: 7507546
    Abstract: The invention provides methods of screening agents, conjugates or conjugate moieties, linked or linkable to agents, for capacity to be transported as substrates through the PEPT2 transporter. The invention also provides methods of treatment involving delivery of agents that either alone, or as a result of linkage to a conjugate moiety, are substrates of the PEPT2 transporter. The invention also provides conjugates comprising a pharmaceutical agent which is linked to a conjugate moiety that is a substrate for a PEPT2 transporter.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: March 24, 2009
    Assignee: Xenoport, Inc.
    Inventors: Noa Zerangue, Tracy Dias, William J. Dower
  • Publication number: 20090076141
    Abstract: Methods of treating alcohol neuropathic pain in a patient comprising orally administering a therapeutically effective amount of a propofol prodrug having high oral bioavailability are disclosed.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 19, 2009
    Applicant: XenoPort, Inc.
    Inventor: Peter A. Virsik
  • Patent number: 7494985
    Abstract: Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, pharmaceutical compositions comprising acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, methods of making prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof, methods of using prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof and pharmaceutical compositions thereof for treating or preventing diseases or disorders such as spasticity or gastroesophageal reflux disease are disclosed. Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous acid, 3-aminopropylphosphinic acid, and analogs thereof and sustained release oral dosage forms thereof, which are suitable for oral administration, are also disclosed.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: February 24, 2009
    Assignee: XenoPort, Inc.
    Inventor: Mark A. Gallop
  • Publication number: 20090041806
    Abstract: Methods of treating spasticity by administering a colonically absorbable prodrug of a GABA analog having antispastic activity that is not directly mediated by the GABAB receptor, optionally in combination with an antispasticity agent or a colonically absorbable prodrug of a GABAB receptor agonist are disclosed. In particular, methods of treating spasticity by administering a colonically absorbable prodrug of gabapentin or a colonically absorbable prodrug of pregabalin, in combination with a colonically absorbable prodrug of R-baclofen are disclosed.
    Type: Application
    Filed: June 13, 2008
    Publication date: February 12, 2009
    Applicant: XenoPort, Inc.
    Inventor: Kenneth C. CUNDY
  • Publication number: 20090005444
    Abstract: Methods of treating alcohol withdrawal, central pain, anxiety, or pruritus in a patient comprising orally administering a therapeutically effective amount of a propofol prodrug having high oral bioavailability are disclosed.
    Type: Application
    Filed: June 18, 2008
    Publication date: January 1, 2009
    Applicant: XenoPort, Inc.
    Inventors: Kenneth C. Cundy, Peter A. Virsik