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R&D costs and returns by therapeutic category
(Drug Information Journal, 2004-09-03)
Objectives: This study examines the degree to which therapeutic class accounts for variability in drug development costs. It also scrutinizes how sales levels vary across the associated therapeutic classes for those drugs ...
Are the Economics of Pharmaceutical R&D Changing? Productivity, Patents and Political Pressures
Pharmaceutical R&D competition in the 1980s and 1990s was characterized by rising R&D expenditures, favorable returns to innovators, and the introduction of many new classes of drugs with high social benefits. However in ...