作者: Janice M. Reichert , Cherie Paquette
DOI: 10.2144/03351DD01
关键词:
摘要: Only a small subset of the therapeutics that enter clinical studies will prove to be safe and effective in humans gain approval for marketing. The success products and, by inference, sponsoring companies can measured tracking advancement through phase review transitions marketing approval. To determine transition probabilities rates recombinant protein (rDNA) therapeutics, Tufts Center Study Drug Development collected data 271 rDNA entered study between 1980 2002. were stratified into eight therapeutic categories. Approval calculated with two possible fates: (i) any country (ii) U.S. only. Global ranged from 23% 63%, 17% 58%. Trends lengths over five time periods an overview currently under Food Administration are discussed.