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  • Models and screening assays for drug discovery in osteoporosis.

    Expert Opin Drug Discov. 5(12):1163-74. doi: 10.1517/17460441.2010.532484. December 2010. View on PubMed.
  • Authors

    Rissanen JP and Halleen JM
  • Abstract

    IMPORTANCE OF THE FIELDOsteoporosis affects nearly 100 million people in Europe, Japan and the US, and the number is increasing due to aging of the population. Preclinical efficacy studies performed according to regulatory guidelines are large, long and expensive, and there is a need for guidance and recommendations on how to perform preliminary studies prior to the regulatory studies.AREAS COVERED IN THIS REVIEWWe review research models that can be used for preclinical efficacy testing of new drug candidates for osteoporosis. Our focus is on testing compounds targeted to directly decrease osteoclastic bone resorption or increase osteoblastic bone formation.WHAT THE READER WILL GAINWe provide an overview of in vitro bone cell culture systems and osteoporosis animal models useful for preclinical efficacy studies and a step-by-step approach on how the most interesting compound can be selected from thousands of drug candidates. Different approaches for testing anti-catabolic and anabolic compounds are provided.TAKE HOME MESSAGEEfficacy of new osteoporosis drug candidates can be first proven conveniently using in vitro bone cell cultures and then confirmed in short-term animal studies, followed by more extensive animal studies, and finally a regulatory study performed according to the guidelines of regulatory authorities.

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