Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1988-02-08
1990-03-06
Terapane, John F.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
4284022, A61K 3722, A61J 500, B01J 1302, B32B 516
Patent
active
049064770
ABSTRACT:
Some of antineoplastic agents, for instance, adriamycin and daunorubicin, have a positive charge at physiological pH. Such drugs possess high affinity for binding to steroidal sulfate by means of electrostatic force. The invention utilizes this property to prepare steroidal sulfate liposomes having a net negative charge and encapsulating the antineoplastic agent.
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Gabizon A. et al., "Liposome Formulations With Prolonged Circulation Time", Proc. Natl. Acad. Sci. USA, vol. 85, pp, 6949-6953, (1988).
Kurono et al., Chem Abs., vol. 110, No. 18, "Antineoplastic Agent-Entrapping Liposomes", abs. #160396b.
Cullis et al., "Liposomes as Pharmaceuticals", in Liposomes From Biophysics to Therapeutics, Astro ed., Marcel Dekker, 1987, pp. 53-65.
Iida Takafumi
Kurono Masayasu
Noda Hitoshi
Ogasawara Tomio
Yagi Kunio
Covert John M.
Kabushiki Kaisha Vitamin Kenkyusyo
Terapane John F.
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