Patents Assigned to CyDex, Inc.
  • Publication number: 20070175472
    Abstract: An inhalable dry powder formulation containing SAE-CD and an active agent is provided. The formulation is adapted for administration by DPI. The SAE-CD serves as a carrier rather than as an absorption enhancer. The average particle size of the SAE-CD is large enough to preclude (for the most part) pulmonary deposition thereof. Following release from the DPI device, the SAE-CD-containing particles dissociate from the active agent-containing particles in the buccal cavity or throat, after which the active agent-containing particles continue deeper into the respiratory tract. The physicochemical and morphological properties of the SAE-CD are easily modified to permit optimization of active agent and carrier interactions. Drugs having a positive, neutral or negative electrostatic charge can be delivered by DPI when SAE-CD is used as a carrier.
    Type: Application
    Filed: October 19, 2006
    Publication date: August 2, 2007
    Applicant: CYDEX, INC.
    Inventors: JAMES PIPKIN, RUPERT ZIMMERER, ANTHONY HICKEY, DIANE THOMPSON, HUGH SMYTH
  • Patent number: 7034013
    Abstract: An injectable formulation of a sedative hypnotic drug, such as the anesthetic drug propofol, that is pharmaceutically stable and demonstrates a reduced incidence of pain upon injection. The formulation of the present invention employs a sulfoalkyl ether cyclodextrin solubilizing and complexing excipient, such as CAPTISOL® cyclodextrin (sulfobutyl ether ?-cyclodextrin) to form a true aqueous solution and not a suspension. This formulation minimizes the allergic response and microbial contamination issues typically associated with propofol parenteral formulations. The present formulation may also reduce pain on injection as compared to the known emulsion type propofol formulations. The liquid formulation can be sterile filtered unlike emulsion-type formulations of sedative hypnotics. The liquid formulation can be lyophilized or otherwise dried to yield a solid formulation.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: April 25, 2006
    Assignee: Cydex, Inc.
    Inventors: Diane O. Thompson, Gerold L. Mosher
  • Patent number: 6869939
    Abstract: The present invention provides aqueous parenteral formulations containing an antiarrhythmic agent, such as amiodarone, and a sulfoalkyl ether cyclodextrin. The liquid formulations are clear, sterilizable, and chemically and physically stable. The liquid formulations do not require a surfactant and do not precipitate upon dilution with distilled water or other pharmaceutically acceptable liquid carrier. The sulfoalkyl ether cyclodextrin-containing formulation provides significant advantages over other cyclodextrin-containing formulations of amiodarone. The formulation can be prepared in acidic, neutral and slightly basic medium while providing acceptable concentrations of amiodarone suitable for parenteral administration. An SAE-CD-containing formulation of amiodarone can be provided in liquid form or as a reconstitutable powder. Moreover, highly concentrated solutions exceeding 200 mg of amiodarone per mL can be prepared.
    Type: Grant
    Filed: May 4, 2002
    Date of Patent: March 22, 2005
    Assignee: CyDex, Inc.
    Inventors: Gerold L. Mosher, Karen T. Johnson, Atef A. Gayed
  • Patent number: 6133248
    Abstract: The present invention is drawn to pharmaceutical composition comprising cyclodextrin and a pharmaceutically active agent or prodrug, wherein the cyclodextrin is present at less than 75% equimolar amounts of the above agent or prodrug. The present invention is further drawn to a method of extending the shelf-life of a pharmaceutically active agent or prodrug by adding one or more cyclodextrins a less than 75% equimolar amounts to said pharmaceutically active agent or prodrug.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: October 17, 2000
    Assignee: Cydex, Inc.
    Inventor: Valentino J. Stella
  • Patent number: 6046177
    Abstract: Sulfoalkyl ether cyclodextrin (SAE-CD) based controlled release pharmaceutical formulations are provided by the present invention. The present solid pharmaceutical formulations consist of a core comprising a physical mixture of one or more SAE-CD derivatives, an optional release rate modifier, a therapeutic agent, a major portion of which is not complexed to the SAE-CD, and an optional release rate modifying coating surrounding the core. The present formulations are advantageously easier to prepare than other SAE-CD based formulations in the art yet provide similar or improved effectiveness. The SAE-CD derivative is used to modify the bioavailability and/or rate of bioabsorption of therapeutic agents. Multi-layered, osmotic pump, coated, and uncoated tablet, minitablet, pellet, micropellet, particle, powder, and granule dosage forms are disclosed herein.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: April 4, 2000
    Assignee: Cydex, Inc.
    Inventors: Valentino J. Stella, Roger A. Rajewski, Venkatramana M. Rao, James W. McGinity, Gerold L. Mosher
  • Patent number: 5874418
    Abstract: Sulfoalkyl ether-cyclodextrin (SAE-CD) based pharmaceutical formulations are provided by the present invention. These formulations comprise SAE-CD derivatives and a therapeutic agent, a major portion of which is not complexed to the SAE-CD. The present formulations are advantageously easier to prepare than other SAE-CD based formulations in the art yet provide similar or improved effectiveness. The SAE-CD derivative can be used to modify the bioavailability and/or rate of bioabsorption of therapeutic agents.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: February 23, 1999
    Assignee: Cydex, Inc.
    Inventors: Valentino Stella, Roger A. Rajewski, James W. McGinity