Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2006-07-25
2006-07-25
Hartley, Michael G. (Department: 1618)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S489000, C424S490000, C514S311000
Reexamination Certificate
active
07081256
ABSTRACT:
A quinolinone derivative pharmaceutical composition comprising a quinolinone derivative represented by the structural formula (I):wherein the quinolinone derivative is in the form of particles, which have an average particle diameter of 0.5 to 10 μm and such a particle size distribution that particles having a particle diameter of 15 μm or less account for 90% or more of the totality of the particles, and also have a fusion enthalpy of 30 J/g or more, and the surface of the particles are coated with a water-soluble composition containing a water-soluble polymer, can quickly dissolve an active ingredient in the digestive tract and is also superior in long-term storage stability.
REFERENCES:
patent: 4526894 (1985-07-01), Enomoto et al.
patent: 5318971 (1994-06-01), McCombie
patent: 5942521 (1999-08-01), Takagaki et al.
patent: 6242425 (2001-06-01), Takagaki et al.
patent: 6627642 (2003-09-01), Kimura et al.
patent: 0 785 190 (1997-07-01), None
patent: 0 927 718 (1999-07-01), None
patent: 0 933 378 (1999-08-01), None
patent: 1 129 712 (2001-09-01), None
patent: 9-255659 (1997-09-01), None
patent: 11-255649 (1999-09-01), None
patent: 11255649 (1999-09-01), None
patent: 2001-72593 (2001-03-01), None
patent: 91113054 (2003-11-01), None
patent: WO 01/19368 (2001-03-01), None
Aoki, Y. et al.; “Inhibitory effect of a novel quinolinone derivative, TA-270, on asthmatic inflammatory responses in sensitized guinea pigs”; European Journal of Pharmacology, vol. 409, No. 3, Dec. 15, 2000; pp. 325-330.
Proceedings of the 12thAnnual Convention of the Japan Pharmaceutical Society, published on Mar. 14, 1997, and a Concise Explanation of Relevance.
Araya Hiroshi
Fukui Hiroyuki
Kimura Nobuyuki
Kubota Ryuji
Obata Kouki
Armstrong Kratz Quintos Hanson & Brooks, LLP
Dainippon Ink and Chemicals Inc.
Hartley Michael G.
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