Triglyceride-free compositions and methods for improved delivery of hydrophobic therapeutic agents
Patent 6294192 Issued on September 25, 2001. Estimated Expiration Date: February 26, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
424/451, Capsules (e.g., of gelatin, of chocolate, etc.)424/450, Liposomes424/464, Tablets, lozenges, or pills424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)514/772, DESIGNATED ORGANIC NONACTIVE INGREDIENT CONTAINING OTHER THAN HYDROCARBON514/937, DISPERSION OR EMULSION514/962, CAPSULE (E.G., GELATIN, ETC.)514/963, Microcapsule-sustained or differential release514/975CHARACTERIZED BY THE DESIGNATED SURFACTANT USED
The present invention relates to triglyceride-free pharmaceutical compositions for delivery of hydrophobic therapeutic agents. Compositions of the present invention include a hydrophobic therapeutic agent and a carrier, where the carrier is formed from a combination of a hydrophilic surfactant and a hydrophobic surfactant. Upon dilution with an aqueous solvent, the composition forms a clear, aqueous dispersion of the surfactants containing the therapeutic agent. The invention also provides methods of treatment with hydrophobic therapeutic agents using these compositions.
Other References
Bhargava et al. Using microemulsions for drug delivery. Pharmaceutical Technology. pp. 46-53, Mar. 1987.
Theodore R. Bates and Joel A. Sequeira; "Bioavailability of Micronized Griseofulvin from Corn Oil-in-Water Emulsion, Aqueous Suspension, and Commercial Tablet Dosage Forms in Humans", Journal of Pharmaceutical Sciences; vol. 64, No. 5; pp. 793-797; May 1975
Leonard R. Johnson, Ph.D. (ed.); "Gastrointestinal Physiology", The C.V. Mosby Company; pp. 25-26, 93,106, 133-137; 1977
D. Winne; "Dependence of Intestinal Absorption in Vivo on the Unstirred Layer", Naunyn-Schmeideberg's Archieves of Pharmacology, 304, pp. 175-181; 1978
Alfonso R. Gennaro (ed.); "Remington's Pharmaceutical Sciences 17th Edition", Chapter 20, pp. 293-300, Mack Publishing Company, 1985
Jean-Philippe Reymond and Heinz Sucker, "In Vitro Model for Ciclosporin Intestinal Absorption in Lipid Vehicles"; Plenum Publishing Corporation; pp. 673-676; 1988
Francisco J. Alvarez and Valentino J. Stella; "The Role of Calcium Ions and Bile Salts on the Pancreatic Lipase-Catalyzed Hydrolysis of Triglyceride Emulsions Stabilized with Lecithin", Pharmaceutical Research, vol. 6, No. 6; pp. 449-457; 1989
Bryan D. Tarr and Samuel H. Yalkowsky; "Enhanced Intestinal Absorption of Cyclosporine in Rats Through the Reduction of Emulsion Droplet Size"; Pharmaceutical Research, vol. 6, No. 1; pp. 40-43; 1989
K. Hutchinson; "Digestible Emulsions and Microemulsions for Optimum Oral Delivery of Hydrophobic Drugs", Bulletin Technique Gattefosse, No. 87; pp. 67-74; 1994
Jianguo Zhi, PhD, Ashok Rakhit, PhD, and Indravadan H. Patel, PhD; "Effects of Dietary Fat on Drug Absorption", Clinical Pharmacology & Therapeutics; vol. 58, No. 5; pp. 487-491; Nov. 1995
J. W. McAuley, FJ Kroboth, and PD Kroboth; "Oral Administration of Micronized Progesterone: a Review and More Experience", Pharmacotherapy; 16(3):453-457; May 1996 (abstract)
Andrew J. Humberstone and William N. Charman; "Lipid-based Vehicles for the Oral Delivery of Poorly Water Soluble Drugs", Elsevier Science, Advanced Drug Delivery Reviews 25; pp. 103-128; 1997
D. Horter and J.B. Dressman; Influence of Physciochemical Properties on Dissolution of Drugs in the Gastrointestinal Tract, Elsevier Science, Advanced Drug Reviews 25; pp. 3-14; 1997
Karen J. MacGregor, Jonathan K. Embleton, Jon E. Lacy, E. Anne Perry, Linda J. Solomon, Harry Seager, Colin W. Pouton; "Influence of Lipolysis on Drug Absorption from the Gastro-Intestinal Tract", Elsevier Science, Advanced Drug Delivery Reviews 25: pp. 33-46; 1997
Colin W. Pouton; "Formulation of Self-Emulsifying Drug Delivery Systems"; Elsevier Science, Advanced Drug Delivery Reviews 25; pp. 47-58; 1997
Clive G. Wilson and Bridget O'Mahony; "The Behavior of Fats and Oils in the Upper G.I. Tract", Bulletin Technique Gattefosse, No. 90; pp. 13-18; 1997
William N. Charman, Christopher J. H. Porter, Sabena Mithani, and Jennifer B. Dressman, "Physicochemical and Physiological Mechanisms for the Effects of Food on Drub Absorption: The Role of Lipids and pH"; Journal of Pharmaceutical Sciences; vol. 86, No. 3; pp. 269-282; Mar. 1997
K. L. Mittal and P. Mukerjee; "The Wide World of Micelles", International Business Machines Corporation and School of Pharmacy, University of Wisconsin, Madison, Wisconsin; pp. 1-2