Patents by Inventor Lawrence G. Hamel

Lawrence G. Hamel 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).

  • Patent number: 9144549
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 29, 2015
    Assignee: ALZA CORPORATION
    Inventors: Suneel K. Gupta, Diane R Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel
  • Patent number: 9029416
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: May 12, 2015
    Assignee: Alza Corporation
    Inventors: Andrew C. Lam, Padmaja Shivanand, Atul D. Ayer, Zahedeh Hatamkhany, Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel, Jeri D. Wright, Richard G. Weyers
  • Publication number: 20150125493
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Application
    Filed: March 13, 2013
    Publication date: May 7, 2015
    Applicant: ALZA CORPORATION
    Inventors: SUNEEL K. GUPTA, DIANE R. GUINTA, CAROL A. CHRISTOPHER, SAMUEL R. SAKS, LAWRENCE G. HAMEL
  • Patent number: 9000038
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 7, 2015
    Assignee: ALZA Corporation
    Inventors: Andrew C. Lam, Padmaja Shivanand, Atul D Ayer, Zahedeh Hatamkhany, Richard G Weyers, Suneel K. Gupta, Diane R Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel, Jeri D. Wright
  • Publication number: 20140044782
    Abstract: Sustained release dosage forms for twice daily oral dosing to a human patient for providing relief from pain are provided. The sustained release dosage form comprises an immediate release component and a sustained release component, wherein the immediate release component and the sustained release component collectively contain a therapeutically effective amount of an opioid analgesic and a therapeutically effective amount of nonopioid analgesic. In a preferred embodiment, the nonopioid analgesic is acetaminophen and the opioid analgesic is hydrocodone and pharmaceutically acceptable salts thereof, and in preferred embodiments, the pharmaceutically acceptable salt is bitartrate. The dosage forms produce plasma profiles in a patient characterized by a Cmax for hydrocodone of between about 0.6 ng/mL/mg to about 1.4 ng/mL/mg and an AUC for hydrocodone of between about 9.1 ng*hr/mL/mg to about 19.9 ng*hr/mL/mg (per mg hydrocodone bitartrate administered) and a Cmax for acetaminophen of between about 2.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: ALZA CORPORATION
    Inventors: Evangeline Cruz, Atul D. Ayer, Brenda J. Pollock, Carmelita Garcia, Sherry Li, Alfredo M. Wong, Lawrence G. Hamel, Cheri Enders Klein, Yihong Qiu, Ye Huang
  • Patent number: 8629179
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 14, 2014
    Assignee: Alza Corporation
    Inventors: Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel
  • Publication number: 20120251590
    Abstract: Sustained release dosage forms for twice daily oral dosing to a human patient for providing relief from pain are provided. The sustained release dosage form comprises an immediate release component and a sustained release component, wherein the immediate release component and the sustained release component collectively contain a therapeutically effective amount of an opioid analgesic and a therapeutically effective amount of nonopioid analgesic.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Inventors: Evangeline Cruz, Atul D. Ayer, Brenda J. Pollock, Carmelita Garcia, Sherry Li, Alfredo M. Wong, Lawrence G. Hamel, Cheri Enders Klein, Yihong Qiu, Ye Huang
  • Publication number: 20120165358
    Abstract: Sustained release dosage forms for twice daily oral dosing to a human patient for providing relief from pain are provided. The sustained release dosage form comprises an immediate release component and a sustained release component, wherein the immediate release component and the sustained release component collectively contain a therapeutically effective amount of an opioid analgesic and a therapeutically effective amount of nonopioid analgesic. In a preferred embodiment, the nonopioid analgesic is acetaminophen and the opioid analgesic is hydrocodone and pharmaceutically acceptable salts thereof, and in preferred embodiments, the pharmaceutically acceptable salt is bitartrate. The dosage forms produce plasma profiles in a patient characterized by a Cmax for hydrocodone of between about 0.6 ng/mL/mg to about 1.4 ng/mL/mg and an AUC for hydrocodone of between about 9.1 ng*hr/mL/mg to about 19.9 ng*hr/mL/mg (per mg hydrocodone bitartrate administered) and a Cmax for acetaminophen of between about 2.
    Type: Application
    Filed: November 18, 2011
    Publication date: June 28, 2012
    Inventors: Evangeline Cruz, Atul D. Ayer, Brenda J. Pollock, Carmelita Garcia, Sherry Li, Alfredo M. Wong, Lawrence G. Hamel, Cheri Enders Klein, Yihong Qiu, Ye Huang
  • Patent number: 8163798
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: April 24, 2012
    Assignee: Alza Corporation
    Inventors: Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel
  • Publication number: 20100221293
    Abstract: Sustained release dosage forms for twice daily oral dosing to a human patient for providing relief from pain are provided. The sustained release dosage form comprises an immediate release component and a sustained release component, wherein the immediate release component and the sustained release component collectively contain a therapeutically effective amount of an opioid analgesic and a therapeutically effective amount of nonopioid analgesic. In a preferred embodiment, the nonopioid analgesic is acetaminophen and the opioid analgesic is hydrocodone and pharmaceutically acceptable salts thereof, and in preferred embodiments, the pharmaceutically acceptable salt is bitartrate. The dosage forms produce plasma profiles in a patient characterized by a Cmax for hydrocodone of between about 0.6 ng/mL/mg to about 1.4 ng/mL/mg and an AUC for hydrocodone of between about 9.1 ng*hr/mL/mg to about 19.9 ng*hr/mL/mg (per mg hydrocodone bitartrate administered) and a Cmax for acetaminophen of between about 2.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 2, 2010
    Inventors: Evangeline Cruz, Atul D. Ayer, Brenda J. Pollock, Carmelita Garcia, Sherry Li, Alfredo M. Wong, Lawrence G. Hamel, Cheri Enders Klein, Yihong Qiu, Ye Huang
  • Publication number: 20100196425
    Abstract: A sustained release dosage form is provided comprising a pharmaceutically active agent and pharmaceutically acceptable salts thereof and adapted to release as an erodible solid over a prolonged period of time, wherein the dosage form provides burst release of the pharmaceutically active agent without the use of an immediate release drug coating. The dosage form is able to deliver high doses of poorly soluble or slowly dissolving active agents at a controlled rate. Methods of using the dosage forms to treat disease or conditions in human patients are also disclosed.
    Type: Application
    Filed: January 6, 2010
    Publication date: August 5, 2010
    Inventors: Evangeline Cruz, Sherry Li, Atul D. Ayer, Brenda J. Pollock, Gregory C. Ruhlmann, Carmelita Garcia, Alfredo M. Wong, Lawrence G. Hamel
  • Publication number: 20100093796
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 15, 2010
    Inventors: Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel
  • Patent number: 6930129
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: August 16, 2005
    Assignee: Alza Corporation
    Inventors: Andrew C. Lam, Padmaja Shivanand, Atul D. Ayer, Zahedeh Hatamkhany, Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel, Jeri D. Wright, Richard G. Weyers
  • Patent number: 6919373
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: July 19, 2005
    Assignee: Alza Corporation
    Inventors: Andrew C. Lam, Padmaja Shivanand, Atul D. Ayer, Richard G. Weyers, Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel, Jeri D. Wright, Zahedeh Hatamkhany
  • Patent number: 6534089
    Abstract: The invention disclosed pertains to a novel delivery system comprising an agent formulation and means for dispensing the agent formulation from the delivery system.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: March 18, 2003
    Assignee: Alza Corporation
    Inventors: Atul D. Ayer, Andrew Lam, Judy A. Magruder, Lawrence G. Hamel, Patrick S. L. Wong
  • Publication number: 20020114838
    Abstract: The invention disclosed pertains to a novel delivery system comprising an agent formulation and means for dispensing the agent formulation from the delivery system.
    Type: Application
    Filed: November 7, 2001
    Publication date: August 22, 2002
    Inventors: Atul D. Ayer, Andrew Lam, Judy A. Magruder, Lawrence G. Hamel, Patrick S. L. Wong
  • Publication number: 20010012847
    Abstract: Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.
    Type: Application
    Filed: March 8, 2001
    Publication date: August 9, 2001
    Inventors: Andrew C. Lam, Padmaja Shivanand, Atul D. Ayer, Zahedeh Hatamkhany, Suneel K. Gupta, Diane R. Guinta, Carol A. Christopher, Samuel R. Saks, Lawrence G. Hamel, Jeri D. Wright, Richard G. Weyers
  • Patent number: 6096339
    Abstract: The invention disclosed pertains to a dosage form comprising an agent formulation comprising drug and pharmaceutical carrier of cooperating particle size and means for dispensing the agent formulation from the dosage form.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: August 1, 2000
    Assignee: ALZA Corporation
    Inventors: Atul D. Ayer, Andrew Lam, Judy A. Magruder, Lawrence G. Hamel, Patrick S. L. Wong
  • Patent number: 5800422
    Abstract: The present invention is directed to a fluid-imbibing drug delivery device which is useful for the initial delayed delivery of an active agent formulation to a fluid environment of use, the initial delay period to startup or activation of the device being of a predetermined length of time. The delivery of the agent formulation from the dispensing device is continued until essentially all of the active agent formulation is delivered as a result of the expansion of an expansion agent in the active agent delivery chamber.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: September 1, 1998
    Assignee: Alza Corporation
    Inventors: Liang C. Dong, Patrick S.-L. Wong, Si-Hong A. Yum, Lawrence G. Hamel, Michael H. Dealey
  • Patent number: 5178867
    Abstract: The invention pertains to a dosage form for orally administering a drug in eight hours or less to the stomach and small intestine for a therapeutic result.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: January 12, 1993
    Assignee: Alza Corporation
    Inventors: George V. Guittard, Howard A. Carpenter, Ernest S. Quan, Patrick S. Wong, Lawrence G. Hamel