Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Matrices
Reexamination Certificate
2007-01-23
2007-01-23
Naff, David M. (Department: 1651)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Matrices
C435S174000, C435S181000, C436S518000, C436S532000, C525S054100, C530S402000, C530S810000, C530S816000
Reexamination Certificate
active
10684946
ABSTRACT:
A heterobifunctional poly(ethylene glycol) is provided having a hydrolytically degradable linkage, a first terminus comprising an acrylate group, and a second terminus comprising a target such as a protein or pharmaceutical agent or a reactive moiety capable of coupling to a target. Hydrogels can be prepared. The hydrogels can be used as a carrier for a protein or a pharmaceutical agent that can be readily released in a controlled fashion.
REFERENCES:
patent: 3419006 (1968-12-01), King
patent: 3963805 (1976-06-01), Chu
patent: 4179337 (1979-12-01), Davis et al.
patent: 4424311 (1984-01-01), Nagaoka et al.
patent: 4670417 (1987-06-01), Iwasaki et al.
patent: 4894238 (1990-01-01), Embry et al.
patent: 5410016 (1995-04-01), Hubbell et al.
patent: 5550178 (1996-08-01), Desai et al.
patent: 5626863 (1997-05-01), Hubbell et al.
patent: 5648506 (1997-07-01), Desai et al.
patent: 5840900 (1998-11-01), Greenwald et al.
patent: 5977277 (1999-11-01), Yokoyama et al.
patent: 6448369 (2002-09-01), Bentley et al.
patent: 6946499 (2005-09-01), Loomis et al.
patent: 0 658 585 (1995-06-01), None
patent: WO 96/20012 (1996-07-01), None
patent: WO 97/05185 (1997-02-01), None
patent: WO 99/07417 (1999-02-01), None
J.M. Harris, Ed., “Biomedical and Biotechnical Applications of Poly(Ethylene Glycol) Chemistry”, Plenum, New York, 1992.
Greenwald et al., Highly Water Soluble Taxol Derivatives: 7-Polyethylene Glycol Carbamates and Carbonates:,J. Org. Chem., vol. 60, No. 2, pp. 331-336, 1995.
Sawhney et al., “Biorodible Hydrogels Based on Photopolymerized Poly(Ethylene Glycol)-co-poly(α-hydroxy acid) Diacrylate Macromers”,Macromolecules, vol. 26, No. 4, pp. 581-587 (1993).
Gayet et al., “High Water Content BSA-PEG Hydrogel for Controlled Release Device: Evaluation of the Drug Release Properties”,Journal of Controlled Release 38, pp. 177-184 (1996).
Yang et al., “Activity and Stability of Enzymes Incorporated into Acrylic Polymers,”J. Am. Chem Soc., 117, pp. 4843-4850 (1995).
Harris J. Milton
Zhao Xuan
Alston & Bird LLP
Debio Recherche Pharmaceutique S.A.
Naff David M.
LandOfFree
Degradable heterobifunctional poly(ethylene glycol) acrylates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Degradable heterobifunctional poly(ethylene glycol) acrylates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Degradable heterobifunctional poly(ethylene glycol) acrylates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3782818