Drug – bio-affecting and body treating compositions – Sustained or differential release type
Reexamination Certificate
2008-03-11
2008-03-11
Richter, Johann R. (Department: 1616)
Drug, bio-affecting and body treating compositions
Sustained or differential release type
C514S001000, C514S800000, C424S426000, C424S468000
Reexamination Certificate
active
07342048
ABSTRACT:
A bioabsorbable release-sustaining pharmaceutical formulation using a biodegradable release-sustaining base material which can prevent an effective component drug from being released too rapidly just after administration of the formulation and then allow continued release of the drug for at least one month at a defined rate, is provided. For the biodegradable release-sustaining base material, a lactic acid-glycolic acid copolymer (PLGA) with an adjusted distribution in molecular weight is used.
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European Search Report for European Patent Application No. 06008539.6-2108 dated Oct. 5, 2006.
Fujiyama Yoshimichi
Hoashi Yohei
Imamura Yukari
Miyaji Tatsuaki
Murayama Tamaki
Arnold Ernst V
Kilyk & Bowersox P.L.L.C.
Nipro Corporation
Richter Johann R.
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