Patents by Inventor Spiridon Spireas

Spiridon Spireas 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: 9622967
    Abstract: Disclosed are highly stable compositions having outstanding storage stability and/or demonstrating exceptional resistance to aqueous solution degradation, the composition including an orally active nucleotide analog or an orally active nucleotide analog prodrug, which is orally bioavailable, such as adefovir dipivoxil and tenofovir disoproxil. For example, when a composition of the invention is stored for 1 month or for 18 months at 25° C. and 60% relative humidity, its orally active nucleotide analog or orally active nucleotide analog prodrug degrades to provide a composition containing no more than 0.2% or no more than 0.7% by weight of a less orally bioavailable impurity, respectively. Also disclosed are a container/closure package system including the composition and a package insert and methods of manufacturing the composition and treating a patient for a disease or condition, for example, a viral disease or cancer, with the use of the composition.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: April 18, 2017
    Assignee: Sigmapharm Laboratories, LLC
    Inventors: Spiridon Spireas, Ishari Piya, Rakesh Grover, Sunil Sagi, Ram K. Kallur
  • Publication number: 20160158203
    Abstract: Pharmaceutical compositions comprising metaxalone which demonstrate improved dissolution and bioavailability characteristics compared to the commercially available product, and methods of producing them are provided. In a preferred embodiment, a dosage form comprising metaxalone and at least one inactive powder excipient is bioequivalent to its commercially available counterpart (Skelaxin® 400-mg tablets) after oral administration to fasting or non-fasting human subjects, while at the same time displaying faster drug dissolution rates than the Skelaxin® tablets as demonstrated from three different dissolution tests. In another preferred embodiment, a dosage form comprising metaxalone, at least one inactive powder excipient and a nonvolatile liquid is significantly more bioavailable than the commercially available Skelaxin® 400-mg tablets after oral administration to fasting human subjects.
    Type: Application
    Filed: August 10, 2015
    Publication date: June 9, 2016
    Inventor: Spiridon Spireas
  • Publication number: 20150352080
    Abstract: Pharmaceutical compositions comprising metaxalone which demonstrate improved dissolution and bioavailability characteristics compared to the commercially available product, and methods of producing them are provided. In a preferred embodiment, a dosage form comprising metaxalone and at least one inactive powder excipient is bioequivalent to its commercially available counterpart (Skelaxin® 400-mg tablets) after oral administration to fasting or non-fasting human subjects, while at the same time displaying faster drug dissolution rates than the Skelaxin® tablets as demonstrated from three different dissolution tests. In another preferred embodiment, a dosage form comprising metaxalone, at least one inactive powder excipient and a nonvolatile liquid is significantly more bioavailable than the commercially available Skelaxin® 400-mg tablets after oral administration to fasting human subjects.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 10, 2015
    Inventor: Spiridon Spireas
  • Publication number: 20130245083
    Abstract: Pharmaceutical compositions comprising metaxalone which demonstrate improved dissolution and bioavailability characteristics compared to the commercially available product, and methods of producing them are provided. In a preferred embodiment, a dosage form comprising metaxalone and at least one inactive powder excipient is bioequivalent to its commercially available counterpart (Skelaxin® 400-mg tablets) after oral administration to fasting or non-fasting human subjects, while at the same time displaying faster drug dissolution rates than the Skelaxin® tablets as demonstrated from three different dissolution tests. In another preferred embodiment, a dosage form comprising metaxalone, at least one inactive powder excipient and a nonvolatile liquid is significantly more bioavailable than the commercially available Skelaxin® 400-mg tablets after oral administration to fasting human subjects.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 19, 2013
    Inventor: Spiridon Spireas
  • Publication number: 20130245082
    Abstract: Pharmaceutical compositions comprising metaxalone which demonstrate improved dissolution and bioavailability characteristics compared to the commercially available product, and methods of producing them are provided. In a preferred embodiment, a dosage form comprising metaxalone and at least one inactive powder excipient is bioequivalent to its commercially available counterpart (Skelaxin® 400-mg tablets) after oral administration to fasting or non-fasting human subjects, while at the same time displaying faster drug dissolution rates than the Skelaxin® tablets as demonstrated from three different dissolution tests. In another preferred embodiment, a dosage form comprising metaxalone, at least one inactive powder excipient and a nonvolatile liquid is significantly more bioavailable than the commercially available Skelaxin® 400-mg tablets after oral administration to fasting human subjects.
    Type: Application
    Filed: October 31, 2012
    Publication date: September 19, 2013
    Inventor: Spiridon Spireas
  • Publication number: 20120196834
    Abstract: Disclosed are highly stable compositions having outstanding storage stability and/or demonstrating exceptional resistance to aqueous solution degradation, the composition including an orally active nucleotide analogue or an orally active nucleotide analogue prodrug, which is orally bioavailable, such as adefovir dipivoxil and tenofovir disoproxil. For example, when a composition of the invention is stored for 1 month or for 18 months at 25° C. and 60% relative humidity, its orally active nucleotide analogue or orally active nucleotide analogue prodrug degrades to provide a composition containing no more than 0.2% or no more than 0.7% by weight of a less orally bioavailable impurity, respectively. Also disclosed are a container/closure package system including the composition and a package insert and methods of manufacturing the composition and treating a patient for a disease or condition, for example, a viral disease or cancer, with the use of the composition.
    Type: Application
    Filed: December 9, 2011
    Publication date: August 2, 2012
    Applicant: SIGMAPHARM LABORATORIES, LLC
    Inventors: Spiridon Spireas, Ishari Piya, Rakesh Grover, Sunil Sagi, Ram K. Kallur
  • Publication number: 20110124694
    Abstract: Pharmaceutical compositions comprising metaxalone which demonstrate improved dissolution and bioavailability characteristics compared to the commercially available product, and methods of producing them are provided. In a preferred embodiment, a dosage form comprising metaxalone and at least one inactive powder excipient is bioequivalent to its commercially available counterpart (Skelaxin® 400-mg tablets) after oral administration to fasting or non-fasting human subjects, while at the same time displaying faster drug dissolution rates than the Skelaxin® tablets as demonstrated from three different dissolution tests. In another preferred embodiment, a dosage form comprising metaxalone, at least one inactive powder excipient and a nonvolatile liquid is significantly more bioavailable than the commercially available Skelaxin® 400-mg tablets after oral administration to fasting human subjects.
    Type: Application
    Filed: February 3, 2011
    Publication date: May 26, 2011
    Applicant: MUTUAL PHARMACEUTICAL COMPANY, INC.
    Inventor: Spiridon Spireas
  • Publication number: 20100099723
    Abstract: Pharmaceutical compositions comprising metaxalone which demonstrate improved dissolution and bioavailability characteristics compared to the commercially available product, and methods of producing them are provided. In a preferred embodiment, a dosage form comprising metaxalone and at least one inactive powder excipient is bioequivalent to its commercially available counterpart (Skelaxin® 400-mg tablets) after oral administration to fasting or non-fasting human subjects, while at the same time displaying faster drug dissolution rates than the Skelaxin® tablets as demonstrated from three different dissolution tests. In another preferred embodiment, a dosage form comprising metaxalone, at least one inactive powder excipient and a nonvolatile liquid is significantly more bioavailable than the commercially available Skelaxin® 400-mg tablets after oral administration to fasting human subjects.
    Type: Application
    Filed: May 15, 2009
    Publication date: April 22, 2010
    Inventor: Spiridon Spireas
  • Publication number: 20080221156
    Abstract: The present invention provides stable formulations of ACE inhibitors, especially enalapril maleate, that can be manufactured in a time efficient, cost effective manner. Such formulations can be prepared simply and on a large industrial scale. The present invention also provides methods for the preparation of stable formulations of ACE inhibitors, especially enalapril maleate.
    Type: Application
    Filed: February 4, 2008
    Publication date: September 11, 2008
    Applicant: MUTUAL PHARMACEUTICAL COMPANY, INC.
    Inventor: Spiridon SPIREAS
  • Patent number: 7056951
    Abstract: Pharmaceutical formulations, and processes for making same, comprising an amino acid which is liable to formation of an undesirable lactam, and a stabilizer comprising a volatile alcohol; a non-volatile alcohol; a water immiscible liquid or solid; a liquid with a relatively low dielectric constant; a liquid surface active agent; a solid surface active agent; an antioxidant; a ketone; an aldehyde; a solid polyethylene glycol of high molecular weight; polyvinylpyrrolidone; a derived cellulose; silicon dioxide; or a combination thereof.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: June 6, 2006
    Assignee: Mutual Pharmaceutical Co., Inc.
    Inventor: Spiridon Spireas
  • Patent number: 6979462
    Abstract: Pharmaceutical formulations and dosage forms are provided having improved stability to moisture-induced degradation when compared with conventional dosage forms, especially tablets. The invention features low compression forms of drugs known to be susceptible to moisture-induced degradation together with excipients, preferably in encapsulated forms. In other embodiments, relatively non-volatile oils can be admixed with the drug and/or the excipients to stabilize the formulations toward moisture-induced degradation. Hydrophobic powders are also optionally added to the formulations.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: December 27, 2005
    Assignee: Mutual Pharmaceutical Co., Inc.
    Inventor: Spiridon Spireas
  • Publication number: 20050276844
    Abstract: Pharmaceutical compositions comprising metaxalone which demonstrate improved dissolution and bioavailability characteristics compared to the commercially available product, and methods of producing them are provided. In a preferred embodiment, a dosage form comprising metaxalone and at least one inactive powder excipient is bioequivalent to its commercially available counterpart (Skelaxin® 400-mg tablets) after oral administration to fasting or non-fasting human subjects, while at the same time displaying faster drug dissolution rates than the Skelaxin® tablets as demonstrated from three different dissolution tests. In another preferred embodiment, a dosage form comprising metaxalone, at least one inactive powder excipient and a nonvolatile liquid is significantly more bioavailable than the commercially available Skelaxin® 400-mg tablets after oral administration to fasting human subjects.
    Type: Application
    Filed: March 8, 2005
    Publication date: December 15, 2005
    Inventor: Spiridon Spireas
  • Publication number: 20050249801
    Abstract: Pharmaceutical formulations and dosage forms are provided having improved stability to moisture-induced degradation when compared with conventional dosage forms, especially tablets. The invention features low compression forms of drugs known to be susceptible to moisture-induced degradation together with excipients, preferably in encapsulated forms. In other embodiments, relatively non-volatile oils can be admixed with the drug and/or the excipients to stabilize the formulation toward moisture-induced degradation. Hydrophobic powders are also optionally added to the formulations.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 10, 2005
    Applicant: Mutual Pharmaceutical Co., Inc.
    Inventor: Spiridon Spireas
  • Patent number: 6855333
    Abstract: Pharmaceutical formulations and dosage forms are provided having improved stability to moisture-induced degradation when compared with conventional dosage forms, especially tablets. The invention features low compression forms of thyroid drugs together with excipients, preferably in encapsulated forms. In other embodiments, relatively non-volatile oils can be admixed with the drug and/or the excipients to stabilize the formulation toward moisture-induced degradation. Hydrophobic powders are also optionally added to the formulations.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: February 15, 2005
    Assignee: Mutual Pharmaceutical Co., Inc.
    Inventor: Spiridon Spireas
  • Publication number: 20040157911
    Abstract: The present invention provides storage-stable and bio-stable formulations of ACE inhibitors, especially enalapril maleate and quinapril hydrochloride, that can be manufactured in a time efficient and cost effective manner. Such formulations can be prepared simply and on a large industrial scale using conventional methods and equipment. The present invention also provides methods for the preparation of highly manufacturable, storage-stable and bio-stable formulations of ACE inhibitors, especially enalapril maleate and quinapril hydrochloride. Methods for treatment of cardiovascular disorders using storage-stable and bio-stable formulations of ACE inhibitors, especially enalapril maleate and quinapril hydrochloride, are also provided.
    Type: Application
    Filed: December 4, 2003
    Publication date: August 12, 2004
    Inventor: Spiridon Spireas
  • Patent number: 6764694
    Abstract: The present invention provides stable formulations of ACE inhibitors, especially enalapril maleate, that can be manufactured in a time efficient, cost effective manner. Such formulations can be prepared simply and on a large industrial scale. The present invention also provides methods for the preparation of stable formulations of ACE inhibitors, especially enalapril maleate.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: July 20, 2004
    Assignee: Mutual Pharmaceutical Co., Inc.
    Inventor: Spiridon Spireas
  • Publication number: 20030225124
    Abstract: The present invention provides stable formulations of ACE inhibitors, especially enalapril maleate, that can be manufactured in a time efficient, cost effective manner. Such formulations can be prepared simply and on a large industrial scale. The present invention also provides methods for the preparation of stable formulations of ACE inhibitors, especially enalapril maleate.
    Type: Application
    Filed: February 12, 2003
    Publication date: December 4, 2003
    Inventor: Spiridon Spireas
  • Patent number: 6555551
    Abstract: The present invention provides stable formulations of ACE inhibitors, especially enalapril maleate, that can be manufactured in a time efficient, cost effective manner. Such formulations can be prepared simply and on a large industrial scale. The present invention also provides methods for the preparation of stable formulations of ACE inhibitors, especially enalapril maleate.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: April 29, 2003
    Assignee: Mutual Pharmaceutical Co., Inc.
    Inventor: Spiridon Spireas
  • Patent number: 6423339
    Abstract: A method of producing a free flowing and compressible liquid/power admixture of an active drug substance, by converting the active substance into a liquisolid system. This is accomplished by introducing by the drug into a non-volatile liquid or a mixture of non-volatile and volatile liquids to from a mixture, selecting at least one solid carrier material and admixing these components to produce a non-adherent, free-flowing and compressible liquid/power mass admixture, the amounts of drug and carrier being selected to optimize flow and compressibility.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: July 23, 2002
    Inventor: Spiridon Spireas
  • Publication number: 20020091159
    Abstract: Pharmaceutical formulations, and processes for making same, comprising an amino acid which is liable to formation of an undesirable lactam, and a stabilizer comprising a volatile alcohol; a non-volatile alcohol; a water immiscible liquid or solid; a liquid with a relatively low dielectric constant; a liquid surface active agent; a solid surface active agent; an antioxidant; a ketone; an aldehyde; a solid polyethylene glycol of high molecular weight; polyvinylpyrrolidone; a derived cellulose; silicon dioxide; or a combination thereof.
    Type: Application
    Filed: August 13, 2001
    Publication date: July 11, 2002
    Inventor: Spiridon Spireas