Patents by Inventor Ashish Chatterji

Ashish Chatterji 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: 20160317530
    Abstract: Disclosed are abuse resistant oral pharmaceutical compositions that reduce the likelihood of improper administration of drugs that are susceptible to abuse. The oral pharmaceutical formulations contain abuse deterrent agents that cause discomfort to the user when administered in an improper manner and make the extraction of an active ingredient more difficult. Methods of making and using the compositions are also disclosed.
    Type: Application
    Filed: December 31, 2014
    Publication date: November 3, 2016
    Applicant: Kashiv Pharma, LLC
    Inventors: Harpreet Kaur Sandhu, Siva Ram Kiran Vaka, Ashish Chatterji, Dipen Desai, Wantanee Phuapradit, Navnit H. Shah
  • Publication number: 20150209294
    Abstract: There is provided a formulation comprising N-(2-chloro-6-methylbenzoyl)-4-[(2,6-dichlorobenzoyl)amino]-L-phenylalanine-2(diethylamino)ethyl ester and poloxamer 188 which is manufactured by a hot melt process.
    Type: Application
    Filed: October 31, 2014
    Publication date: July 30, 2015
    Inventors: Ashish Chatterji, Harpreet K. Sandhu, Navnit Hargovindas Shah
  • Publication number: 20150140087
    Abstract: Pharmaceutical compositions of metabotropic glutamate 5 receptor (mGlu5) antagonists or a pharmacologically acceptable salt thereof are disclosed. The compositions contain the therapeutic active compound with non-ionic polymer and ionic polymer, binder and fillers in either matrix pellet, matrix tablet or coated pellets. The compositions provide a pH-independent in vitro release profile with NMT 70% in one hour, NMT 85% in 4 hour, and NLT 80% in 8 hours. The compositions are useful for the treatment of CNS disorders, such as Treatment-Resistant Depression (TRD) and Fragile X Syndrome.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 21, 2015
    Inventors: Ashish Chatterji, Jingjun Huang, Stephanie Koennings, Kai Lindenstruth, Harpreet Sandhu, Navnit Shah
  • Publication number: 20140128431
    Abstract: The invention relates to solid dispersions of poorly soluble compounds formed by coprecipitation, resulting in improved bioavailability, safety and tolerability. The invention also relates to Purified Eudragit L100-55 used to prepare such solid dispersions.
    Type: Application
    Filed: April 1, 2013
    Publication date: May 8, 2014
    Applicant: Hoffmann-LaRoche Inc.
    Inventors: Shalini M. Anand, Ashish Chatterji, Michael Allen Matchett, Harpreet K. Sandhu, Navnit H. Shah
  • Publication number: 20120213827
    Abstract: A process for controlling the crystallization of certain hydrophobic active pharmaceutical ingredients (APIs) from a supercooled liquid state by hot-melt extrusion processing is described. Also described is a pharmaceutical composition comprising a solid crystalline dispersion of a cholesterol ester transfer protein inhibitor in a hydrophilic excipient matrix. In the process of the present invention, the API is fed to an extrusion system in a crystalline state contemporaneously with carrier excipients where it is first converted to a non-crystalline state by the application of heat and then subsequently recrystallized in-situ by the removal of heat and application of shear. Recrystallization of the API is controlled by carrier formulation design and the hot-melt extrusion process parameters; i.e. barrel temperature profile, feed rate, etc.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Inventors: Ashish Chatterji, Dipen Desai, Dave Alan Miller, Harpreet K. Sandhu, Navnit H. Shah
  • Patent number: 8222230
    Abstract: The present invention provides novel formulations of isobutyric acid (2R,3R,4R,5R)-5-(4-amino-2-oxo-2H-pyrimidin-1-yl)-4-fluoro-2-isobutyryloxymethyl-4-methyl-tetrahydro-furan-3-yl ester) and hydroxypropylcellulose that provide high bulk density, low particle size better suited for improved compression and flow, good compression, and fast dissolution profiles.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: July 17, 2012
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Ashish Chatterji, Dipen Desai, Harpreet Sandhu, Navnit Hargovindas Shah
  • Publication number: 20120129898
    Abstract: The invention relates to solid dispersions of poorly soluble compounds formed by co-precipitation and hot melt extrusion, resulting in improved stability and bioavailability. The invention also relates to hot melt extrusion processes used to prepare such solid dispersions.
    Type: Application
    Filed: January 4, 2012
    Publication date: May 24, 2012
    Inventors: Ashish Chatterji, Zedong Dong, Harpreet K. Sandhu, Navnit Hargovindas Shah
  • Publication number: 20120039999
    Abstract: Pharmaceutical compositions of metabotropic glutamate 5 receptor (mGlu5) antagonists or a pharmacologically acceptable salt thereof are disclosed. The compositions contain the therapeutic active compound with non-ionic polymer and ionic polymer, binder and fillers in either matrix pellet, matrix tablet or coated pellets. The compositions provide a pH-independent in vitro release profile with NMT 70% in one hour, NMT 85% in 4 hour, and NLT 80% in 8 hours. The compositions are useful for the treatment of CNS disorders, such as Treatment-Resistant Depression (TRD) and Fragile X Syndrome.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 16, 2012
    Inventors: Ashish Chatterji, Jingjun Huang, Stephanie Koennings, Kai Lindenstruth, Harpreet Sandhu, Navnit Shah
  • Publication number: 20120040008
    Abstract: Pharmaceutical compositions of metabotropic glutamate 5 receptor (mGlu5) antagonists or a pharmacologically acceptable salt thereof are disclosed. The compositions contain the therapeutic active compound with non-ionic polymer and ionic polymer, binder and fillers in either matrix pellet, matrix tablet or coated pellets. The compositions provide a pH-independent in vitro release profile with NMT 70% in one hour, NMT 85% in 4 hour, and NLT 80% in 8 hours. The compositions are useful for the treatment of CNS disorders, such as Treatment-Resistant Depression (TRD) and Fragile X Syndrome.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 16, 2012
    Inventors: Ashish Chatterji, Jingjun Huang, Stephanie Koennings, Kai Lindenstruth, Harpreet Sandhu, Navnit Shah
  • Publication number: 20110245305
    Abstract: The invention relates to solid dispersions of poorly soluble compounds formed by co-precipitation and hot melt extrusion, resulting in improved stability and bioavailability. The invention also relates to hot melt extrusion processes used to prepare such solid dispersions.
    Type: Application
    Filed: June 8, 2011
    Publication date: October 6, 2011
    Inventors: Ashish Chatterji, Zedong Dong, Harpreet K. Sandhu, Navnit Hargovindas Shah
  • Publication number: 20110028524
    Abstract: The invention relates to solid dispersions of poorly soluble compounds formed by co-precipitation and hot melt extrusion, resulting in improved stability and bioavailability. The invention also relates to hot melt extrusion processes used to prepare such solid dispersions.
    Type: Application
    Filed: October 12, 2010
    Publication date: February 3, 2011
    Inventors: Ashish Chatterji, Zedong Dong, Harpreet K. Sandhu, Navnit Hargovindas Shah
  • Publication number: 20100184716
    Abstract: The present invention provides novel formulations of isobutyric acid (2R,3R,4R,5R)-5-(4-amino-2-oxo-2H-pyrimidin-1-yl)-4-fluoro-2-isobutyryloxymethyl-4-methyl-tetrahydro-furan-3-yl ester) and hydroxypropylcellulose that provide high bulk density, low particle size better suited for improved compression and flow, good compression, and fast dissolution profiles.
    Type: Application
    Filed: January 18, 2010
    Publication date: July 22, 2010
    Inventors: Ashish Chatterji, Dipen Desai, Harpreet Sandhu, Navnit Hargovindas Shah
  • Publication number: 20080293787
    Abstract: The invention relates to solid dispersions of poorly soluble compounds formed by co-precipitation and hot melt extrusion, resulting in improved stability and bioavailability. The invention also relates to hot melt extrusion processes used to prepare such solid dispersions.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 27, 2008
    Inventors: Ashish Chatterji, Zedong Dong, Harpreet K. Sandhu, Navnit Hargovindas Shah
  • Publication number: 20070184113
    Abstract: There is provided a formulation comprising N-(2-chloro-6-methylbenzoyl)4-[(2,6-dichlorobenzoyl)amino]-L-phenylalanine-2(diethylamino)ethyl ester and poloxamer 188 which is manufactured by a hot melt process.
    Type: Application
    Filed: January 11, 2007
    Publication date: August 9, 2007
    Inventors: Ashish Chatterji, Harpreet Sandhu, Navnit Shah