Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Reexamination Certificate
2006-12-26
2006-12-26
Woodward, Michael P. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
C424S400000, C424S422000, C424S423000, C514S772300, C514S772100
Reexamination Certificate
active
07153520
ABSTRACT:
A composition for the sustained delivery of a drug comprising an amphiphilic diblock copolymer; a poorly water-soluble drug; a biodegradable polymer; and liquid poly(ethylene glycol) or functional derivatives thereof and a process for preparing the composition are disclosed. When administered into a particular body site, the composition forms an implant containing the drug and drug containing polymeric micelles, which are slowly released from the implant to maintain a constant drug concentration for an extended period of time.
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Kim Jae-Hong
Lee Sang-Jun
Seo Min-Hyo
Yi Yil-Woong
Samyang Corporation
Silverman Eric
Thorpe North & Western LLP
Woodward Michael P.
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