Patents by Inventor Leah Appel

Leah Appel 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: 20110313009
    Abstract: The present invention generally relates to unit dosage forms of naproxen and H2-receptor antagonists, comprising an immediate-release formulation of naproxen; an immediate-release formulation of an H2-receptor antagonist, and a delayed-burst release formulation of an H2-receptor antagonist.
    Type: Application
    Filed: July 17, 2009
    Publication date: December 22, 2011
    Inventors: George Tidmarsh, Leah Appel
  • Publication number: 20080015343
    Abstract: The present invention is related to an oral dosage form comprising an effective amount of an alkalizing agent and an azithromycin multiparticulate wherein said multiparticulate comprises azithromycin, a glyceride which comprises glyceryl monobehenate, glyceryl dibehenate, glyceryl tribehenate, or a mixture thereof and a poloxamer. Typically, the oral dosage form includes any suitable oral dosing means such as a powder for oral suspension, a unit dose packet or sachet, a tablet or a capsule.
    Type: Application
    Filed: July 18, 2007
    Publication date: January 17, 2008
    Inventors: Timothy Hagen, Julian Lo, Avinash Thombre, Scott Herbig, Leah Appel, Marshall Crew, Dwayne Friesen, David Lyon, Scott McCray, James West
  • Publication number: 20070196483
    Abstract: A pharmaceutical composition comprises multiparticulates comprising a drug, a matrix material, and swelling agent. In one aspect, the multiparticulates comprise a core comprising a drug, and a coating surrounding the core. The coating is selected from the group consisting of (i) a water-permeable, substantially drug-impermeable coating, and (ii) an anti-enteric coating.
    Type: Application
    Filed: April 6, 2005
    Publication date: August 23, 2007
    Inventors: Leah Appel, Dwayne Friesen, Edward Lachapelle, Sanjay Konagurthu, Richard Falk, Joseph Reo
  • Publication number: 20070190129
    Abstract: A sustained release solid oral dosage form for treatment of a psychotic disorder, for example schizophrenia, in a mammal is provided, which oral dosage form comprises ziprasidone in an amount effective in treating said psychotic disorder and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: August 31, 2004
    Publication date: August 16, 2007
    Inventors: Imran Ahmed, Leah Appel, Walter Babcock, Dwayne Friesen, Scott Herbig, David Lyon, Sheri Shamblin, Ravi Shanker, Daniel Smithey, Steven Sutton, Avinash Thombre, Kenneth Waterman
  • Publication number: 20070087057
    Abstract: A controlled release dosage form has a coated core with the core comprising a drug-containing composition and a water-swellable composition, each occupying separate regions within the core. The drug-containing composition comprises a low-solubility drug and a drug-entraining agent. The coating around the core is water-permeable, water-insoluble and has at least one delivery port therethrough. A variety of formulations having specific drug release profiles are disclosed.
    Type: Application
    Filed: December 14, 2006
    Publication date: April 19, 2007
    Inventors: Leah Appel, Ronald Beyerinck, Mark Chidlaw, William Curatolo, Dwayne Friesen, Kelly Smith, Avinash Thombre
  • Publication number: 20060039988
    Abstract: The present invention is related to an oral dosage form comprising an effective amount of an alkalizing agent and an azithromycin multiparticulate wherein said multiparticulate comprises azithromycin, a glyceride which comprises glyceryl monobehenate, glyceryl dibehenate, glyceryl tribehenate, or a mixture thereof and a poloxamer. Typically, the oral dosage form includes any suitable oral dosing means such as a powder for oral suspension, a unit dose packet or sachet, a tablet or a capsule.
    Type: Application
    Filed: October 26, 2005
    Publication date: February 23, 2006
    Inventors: Timothy Hagen, Julian Lo, Avinash Thombre, Scott Herbig, Leah Appel, Marshall Crew, Dwayne Friesen, David Lyon, Scott McCray, James West
  • Publication number: 20060029677
    Abstract: The present invention is related to an oral dosage form comprising an effective amount of an alkalizing agent and an azithromycin multiparticulate wherein said multiparticulate comprises azithromycin, a glyceride which comprises glyceryl monobehenate, glyceryl dibehenate, glyceryl tribehenate, or a mixture thereof and a poloxamer. Typically, the oral dosage form includes any suitable oral dosing means such as a powder for oral suspension, a unit dose packet or sachet, a tablet or a capsule.
    Type: Application
    Filed: August 25, 2005
    Publication date: February 9, 2006
    Inventors: Timothy Hagen, Julian Lo, Avinash Thombre, Scott Herbig, Leah Appel, Marshall Crew, Dwayne Friesen, David Lyon, Scott McCray, James West
  • Publication number: 20050186285
    Abstract: A process is described for producing drug-containing multiparticulates with improved stability, characterized by an improvement in one or more of chemical stability, physical stability, or dissolution stability.
    Type: Application
    Filed: December 3, 2004
    Publication date: August 25, 2005
    Inventors: Rodrick Ray, Leah Appel, Dwayne Friesen, Marshall Crew
  • Publication number: 20050181060
    Abstract: A process for forming drug multiparticulates having improved drug crystallinity is disclosed, comprising modifying a conventional melt-congeal process by adding a volatile cospecies either to the molten mixture or to the process atmosphere, or to both.
    Type: Application
    Filed: December 3, 2004
    Publication date: August 18, 2005
    Inventors: Dwayne Friesen, Marshall Crew, Roderick Ray, Leah Appel
  • Publication number: 20050181061
    Abstract: Reduced levels of drug degradation in drug-containing multiparticulates are obtained by an extrusion/melt-congeal process.
    Type: Application
    Filed: December 3, 2004
    Publication date: August 18, 2005
    Inventors: Roderick Ray, Leah Appel, David Newbold, Dwayne Friesen, Scott McCray, David Lyon, James West, Marshall Crew
  • Publication number: 20050181062
    Abstract: A multiparticulate for controlled release of a drug comprises crystalline drug, a glyceride having at least one alkylate substituent of at least 16 carbon atoms, and a poloxamer, wherein at least 70 wt % of the drug in the multiparticulate is crystalline.
    Type: Application
    Filed: December 3, 2004
    Publication date: August 18, 2005
    Inventors: Leah Appel, Roderick Ray, David Lyon, James West, Scott McCray, Marshall Crew, Dwayne Friesen, Scott Herbig, Julian Lo
  • Publication number: 20050158391
    Abstract: Azithromycin multiparticulates containing acceptably low concentrations of azithromycin esters are formed by a melt-congeal process.
    Type: Application
    Filed: December 3, 2004
    Publication date: July 21, 2005
    Inventors: Leah Appel, Roderick Ray, David Newbold, Dwayne Freisen, Scott McCray, James West, David Lyon, Marshall Crew, Steven Lemott, Scott Herbig, Julian Lo
  • Publication number: 20050152982
    Abstract: Pharmaceutical compositions of crystalline azithromycin-containing multiparticulates having low concentrations of azithromycin ester degradants and exhibiting controlled release of the drug are achieved by inclusion of dissolution enhancers having low concentrations of acid and ester substituents.
    Type: Application
    Filed: December 3, 2004
    Publication date: July 14, 2005
    Inventors: Leah Appel, Roderick Ray, David Newbold, David Lyon, James West, Dwayne Friesen, Scott McCray, Marshall Crew, Julian Lo
  • Publication number: 20050123616
    Abstract: Liquid-based processes are disclosed for forming azithromycin multiparticulates having minimal amounts of azithromycin esters.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Leah Appel, James West, Dwayne Friesen, Roderick Ray, Marshall Crew, David Lyon, Scott McCray
  • Publication number: 20050123627
    Abstract: An oral dosage form comprising azithromycin and an effective amount of an alkalizing agent. Preferably, said oral dosage form comprises an effective amount of an alkalizing agent and an azithromycin multiparticulate wherein said multiparticulate comprises azithromycin, a mixture of glyceryl monobehenate, glyceryl dibehenate and glyceryl tribehenate, and a poloxamer. Typically, the oral dosage form includes any suitable oral dosing means such as a powder for oral suspension, a unit dose packet or sachet, a tablet or a capsule. Additionally disclosed is an oral suspension comprising azithromycin, an effective amount of an alkalizing agent and a vehicle. Preferably, the azithromycin is in multiparticulate form wherein said multiparticulate comprises azithromycin, a mixture of glyceryl monobehenate, glyceryl dibehenate and glyceryl tribehenate, and a poloxamer.
    Type: Application
    Filed: January 23, 2004
    Publication date: June 9, 2005
    Inventors: Timothy Hagen, Julian Lo, Avinash Thombre, Scott Herbig, Leah Appel, Marshall Crew, Dwayne Friesen, David Lyon, Scott McCray, James West
  • Publication number: 20050123615
    Abstract: A process for forming multiparticulates of azithromycin and a controlled release dosage form comprising multiparticulates of azithromycin and a pharmaceutically acceptable excipient are disclosed. The dosage form decreases the incidence and/or severity of GI side effects relative to currently available immediate release azithromycin dosage forms that deliver an equivalent dose. The dosage forms operate by effecting azithromycin release at a rate sufficiently slow to ameliorate side effects, yet sufficiently fast to achieve good bioavailability.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Roderick Ray, Leah Appel, Dwayne Friesen, Marshall Crew, David Newbold
  • Patent number: 6899896
    Abstract: A controlled release dosage form for sertraline has a core comprising a sertraline-containing composition and a water-swellable composition wherein the water-swellable composition is in a separate region within the core. A coating around the core is water-permeable, water-insoluble, and has at least one delivery port therethrough. In one embodiment, the dosage form releases sertraline to the use environment at an average rate of 6 to 10 wt % per hour from the second to the twenth hour after introduction to a use environment and less than about 25 wt % for the first two hours and at least 70 wt % by the twelfth hour, where the percentages correspond to the mass of drug released from the tablet divided by the total mass of drug originally present in the tablet.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: May 31, 2005
    Assignee: Pfizer Inc
    Inventors: William J. Curatolo, Kenneth C. Waterman, Avinash G. Thombre, Michael B. Fergione, Michael C. Roy, Leah A. Appel, Danni Supplee, Dwayne T. Friesen, Mark B. Chidlaw, Ronald A. Beyerinck