Patents by Inventor Jin-Wang Lai

Jin-Wang Lai 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: 20090263480
    Abstract: There is provided a method for preparing an orally disintegrating tablet (ODT) composition comprising microparticles of one or more taste-masked active pharmaceutical ingredients, rapidly-dispersing microgranules, and other optional, pharmaceutically acceptable excipients wherein the ODT disintegrates rapidly with saliva in the buccal cavity forming a smooth, easy-to-swallow suspension. Furthermore, the microparticles (crystals, granules, beads or pellets containing one or more actives) with a taste-masking membrane applied by a modified solvent coacervation process comprising a water-insoluble polymer and at least one gastrosoluble inorganic or organic pore-former, exhibit a pleasant taste when placed in the oral cavity and provide rapid, substantially-complete release of the dose on entry into the stomach.
    Type: Application
    Filed: May 15, 2009
    Publication date: October 22, 2009
    Inventors: Jin-Wang Lai, Ken Kangyi Qian, Gopi M. Venkatesh
  • Publication number: 20090258066
    Abstract: The present invention is directed to pharmaceutical compositions, and methods of making such compositions, comprising microparticles containing a weakly basic drug core, a layer of alkaline buffer, and a controlled-release coating. The present invention is also directed to pharmaceutical dosage forms, including orally disintegrating tablets, conventional tablets, and capsules, and methods for their preparation.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 15, 2009
    Inventors: Gopi VENKATESH, Phillip J. Stevens, Jin-Wang Lai
  • Publication number: 20090232885
    Abstract: The present invention is directed to pharmaceutical compositions, and methods of making such compositions, wherein the compositions comprise a plurality of TPR and RR particles, wherein: the TPR particles each comprise a core coated with a TPR layer; the core comprises a weakly basic, poorly soluble drug and a pharmaceutically acceptable organic acid separated from each other by an SR layer; the RR particles each comprise the weakly basic, poorly soluble drug, and release at least about 80 wt.% of the weakly basic, poorly soluble drug in about 5 minutes when dissolution tested using United States Pharmacopoeia (USP) dissolution methodology (Apparatus 2—paddles@ 50 RPM and a two-stage dissolution medium at 37° C., (first 2 hours in 0.1N HCl followed by testing in a buffer at pH 6.8).
    Type: Application
    Filed: September 12, 2008
    Publication date: September 17, 2009
    Inventors: Gopi Venkatesh, Jin-Wang Lai, Nehal H. Vyas, Vivek Purohit
  • Publication number: 20090169620
    Abstract: The compositions of the present invention are orally disintegrating tablet compositions comprising a therapeutically effective amount of at least one drug such as temazepam, 0.5-3% of an ODT binder polymer, a sugar alcohol and/or saccharide, and a disintegrant.
    Type: Application
    Filed: December 19, 2008
    Publication date: July 2, 2009
    Inventors: Gopi M. VENKATESH, James M. Clevenger, Jin-Wang Lai, Vivek Purohit
  • Publication number: 20090155360
    Abstract: The compositions of the present invention comprise a therapeutically effective amount of particles consisting of diphenhydramine or pharmaceutically acceptable salts thereof, optionally in combination with another drug such as pseudoephedrine, or phenylephrine and hydrocodone, in combination with rapidly-dispersing microgranules comprising a disintegrant and a sugar alcohol and/or a saccharide. These compositions are useful in treating the symptoms of one or more diseases or conditions in which diphenhydramine (alone or in combination with one or two other drugs) is a therapeutically effective, e.g. allergic rhinitis, sinusitis, upper respiratory tract infections, motion sickness, Parkinson's disease, insomnia, the common cold, and nighttime pain management, particularly for subjects or patients with dysphagia, and people ‘on the move’.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 18, 2009
    Inventors: Gopi M. VENKATESH, Jin-Wang Lai, Phillip Percel, Craig Kramer
  • Publication number: 20090092672
    Abstract: The compositions of the present invention composition comprise a therapeutically effective amount of particles comprising lamotrigine, in combination with granules comprising a disintegrant, and a sugar alcohol and/or a saccharide. These compositions are useful in treating epilepsy and bipolar disorder, particularly for patients with dysphagia, and to improve compliance with bipolar patients.
    Type: Application
    Filed: July 2, 2008
    Publication date: April 9, 2009
    Inventors: Gopi M. Venkatesh, Nehal H. Vyas, Michael Gosselin, Jin-Wang Lai
  • Publication number: 20080069878
    Abstract: The present invention is directed to pharmaceutical compositions and dosage forms comprising TPR beads, wherein said TPR beads comprise a solid dispersion of at least one active pharmaceutical ingredient in at least one solubility-enhancing polymer, and a TPR coating comprising a water insoluble polymer and an enteric polymer, wherein the active pharmaceutical ingredient comprises a weakly basic active pharmaceutical ingredient having a solubility of not more than 100 ?g/mL at pH 6.8.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 20, 2008
    Inventors: Gopi Venkatesh, Luigi Boltri, Italo Colombo, Jin-Wang Lai, Flavio Flabiani, Luigi Mapelli
  • Publication number: 20070190145
    Abstract: A pharmaceutical dosage form such as a capsule, a conventional or orally disintegrating tablet capable of delivering a weakly basic, nitrogen (N)-containing selective serotonin 5-HT3 blocking agent having a pKa in the range of from about 5 to 14 and a solubility of not more than about 200 ?g/mL at pH 6.8 into the body in a sustained-released fashion, suitable for a once-daily dosing regimen, comprises at least one organic acid, which solubilizes said weakly basic selective serotonin 5-HT3 blocking agent prior to releasing it into the hostile intestinal environment wherein the blocking agent is practically insoluble. The unit dosage form may be composed of a multitude of multicoated particulates (i.e.
    Type: Application
    Filed: January 29, 2007
    Publication date: August 16, 2007
    Applicant: EURAND, INC.
    Inventors: Gopi Venkatesh, Jin-Wang Lai, Nehal Vyas
  • Publication number: 20060105039
    Abstract: There is provided a method for preparing an orally disintegrating tablet (ODT) composition comprising microparticles of one or more taste-masked active pharmaceutical ingredient(s), rapidly-dispersing microgranules, and other optional, pharmaceutically acceptable excipients wherein the ODT disintegrates on contact with saliva in the buccal cavity forming a smooth, easy-to-swallow suspension. Furthermore, the microparticles (crystals, granules, beads or pellets containing the active), coated with a taste-masking membrane comprising a water-insoluble polymer and one or more gastrosoluble inorganic or organic pore-formers (practically insoluble in water and saliva, but soluble in an acidic buffer), exhibit acceptable taste-masking when placed in the oral cavity and provide rapid, substantially-complete release of the dose on entry into the stomach.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 18, 2006
    Inventors: Jin-Wang Lai, Gopi Venkatesh, Ken Qian
  • Publication number: 20060105038
    Abstract: There is provided a method for preparing an orally disintegrating tablet (ODT) composition comprising microparticles of one or more taste-masked active pharmaceutical ingredients, rapidly-dispersing microgranules, and other optional, pharmaceutically acceptable excipients wherein the ODT disintegrates rapidly with saliva in the buccal cavity forming a smooth, easy-to-swallow suspension. Furthermore, the microparticles (crystals, granules, beads or pellets containing one or more actives) with a taste-masking membrane applied by a modified solvent coacervation process comprising a water-insoluble polymer and at least one gastrosoluble inorganic or organic pore-former, exhibit a pleasant taste when placed in the oral cavity and provide rapid, substantially-complete release of the dose on entry into the stomach.
    Type: Application
    Filed: August 26, 2005
    Publication date: May 18, 2006
    Inventors: Jin-Wang Lai, Ken Qian, Gopi Venkatesh
  • Publication number: 20050106244
    Abstract: Provided herein are compositions and methods of making compositions of ibuprofen in combination with a narcotic analgesic. Specifically provided is a pharmaceutical tablet composition comprising ibuprofen; a narcotic analgesic; colloidal silicon dioxide; a filler selected from the group consisting of microcrystalline cellulose and powdered cellulose; a disintegrant selected from the group consisting of croscarmellose sodium, crospovidone, and sodium starch glycolate; a binder consisting of an akylhydroxy methylcellulose; a starch; and a lubricant.
    Type: Application
    Filed: December 16, 2004
    Publication date: May 19, 2005
    Inventors: Gregory Kushla, Jin-Wang Lai, Gerald Polli
  • Patent number: 6599531
    Abstract: Provided herein are compositions and methods of making compositions of ibuprofen in combination with a narcotic analgesic. Specifically provided is a pharmaceutical tablet composition comprising ibuprofen; a narcotic analgesic; colloidal silicon dioxide; a filler selected from the group consisting of microcrystalline cellulose and powdered cellulose; a disintegrant selected from the group consisting of croscarmellose sodium, crospovidone, and sodium starch glycolate; a binder consisting of an akylhydroxy methylcellulose; a starch; and a lubricant.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: July 29, 2003
    Assignee: Knoll Pharmaceutical Company
    Inventors: Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli
  • Publication number: 20030068368
    Abstract: Provided herein are compositions and methods of making compositions of ibuprofen in combination with a narcotic analgesic. Specifically provided is a pharmaceutical tablet composition comprising ibuprofen; a narcotic analgesic; colloidal silicon dioxide; a filler selected from the group consisting of microcrystalline cellulose and powdered cellulose; a disintegrant selected from the group consisting of croscarmellose sodium, crospovidone, and sodium starch glycolate; a binder consisting of an akylhydroxy methylcellulose; a starch; and a lubricant.
    Type: Application
    Filed: December 21, 2001
    Publication date: April 10, 2003
    Applicant: Knoll Pharmaceuticals
    Inventors: Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli
  • Publication number: 20020127275
    Abstract: Provided herein are slow release pharmaceutical compositions and methods of preparing slow release pharmaceutical compositions comprising mixing an unhydrated cellulose polymer with a hydrophobic substance to form a dry mixture; adding a granulating liquid to the dry mixture to form a wet mixture; and drying the wet mixture to obtain a blend suitable for use in a slow release pharmaceutical composition. The methods may be carried-out in the absence of a melting step for the hydrophobic substance. Also provided herein is a slow release composition comprising a cellulose polymer and a hydrophobic compound wherein the composition is provided in the substantial absence of a molecular coordination complex formed between the cellulose polymer and the hydrophobic substance. The slow release compositions may comprise a cellulose polymer and a hydrophobic compound in the substantial absence of a higher aliphatic alcohol.
    Type: Application
    Filed: January 11, 2002
    Publication date: September 12, 2002
    Applicant: BASF Corporation
    Inventors: Bin Bin Chang, Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli
  • Publication number: 20020127274
    Abstract: Provided herein are compositions and methods of making compositions of ibuprofen in combination with a narcotic analgesic. Specifically provided is a pharmaceutical tablet composition comprising ibuprofen; a narcotic analgesic; colloidal silicon dioxide; a filler selected from the group consisting of microcrystalline cellulose and powdered cellulose; a disintegrant selected from the group consisting of croscarmellose sodium, crospovidone, and sodium starch glycolate; a binder consisting of an akylhydroxy methylcellulose; a starch; and a lubricant.
    Type: Application
    Filed: December 21, 2001
    Publication date: September 12, 2002
    Applicant: BASF Corporation
    Inventors: Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli
  • Publication number: 20020110595
    Abstract: Provided herein are slow release pharmaceutical compositions and methods of preparing slow release pharmaceutical compositions comprising mixing an unhydrated cellulose polymer with a hydrophobic substance to form a dry mixture; adding a granulating liquid to the dry mixture to form a wet mixture, and drying the wet mixture to obtain a blend suitable for use in a slow release pharmaceutical composition. The methods may be carried-out in the absence of a melting step for the hydrophobic substance. Also provided herein is a slow release composition comprising a cellulose polymer and a hydrophobic compound wherein the composition is provided in the substantial absence of a molecular coordination complex formed between the cellulose polymer and the hydrophobic substance. The slow release compositions may comprise a cellulose polymer and a hydrophobic compound in the substantial absence of a higher aliphatic alcohol.
    Type: Application
    Filed: January 11, 2002
    Publication date: August 15, 2002
    Applicant: BASF Corporation
    Inventors: Bin Bin Chang, Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli
  • Patent number: 6361794
    Abstract: Provided herein are compositions and methods of making compositions of ibuprofen in combination with a narcotic analgesic. Specifically provided is a pharmaceutical tablet composition comprising ibuprofen; a narcotic analgesic; colloidal silicon dioxide; a filler selected from the group consisting of microcrystalline cellulose and powdered cellulose; a disintegrant selected from the group consisting of croscarmellose sodium, crospovidone, and sodium starch glycolate; a binder consisting of an akylhydroxy methylcellulose; a starch; and a lubricant.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: March 26, 2002
    Assignee: BASF Corporation
    Inventors: Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli
  • Patent number: 6348216
    Abstract: Provided herein are compositions and methods of making compositions of ibuprofen in combination with a narcotic analgesic. Specifically provided is a pharmaceutical tablet composition comprising ibuprofen; a narcotic analgesic; colloidal silicon dioxide; a filler selected from the group consisting of microcrystalline cellulose and powdered cellulose; a disintegrant selected from the group consisting of croscarmellose sodium, crospovidone, and sodium starch glycolate; a binder consisting of an akylhydroxy methylcellulose; a starch; and a lubricant.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: February 19, 2002
    Assignee: Knoll Pharmaceutical Company
    Inventors: Gregory P. Kushla, Jin-Wang Lai, Gerald P. Polli