Discovery of new medicines and the future of drug development
Over the past 30 to 40 years there have been drastic changes in the way new medicines are developed. Before the 1970s drug development was based on phenotypic assays and 'accidental findings', with an approval process that would often take two to three years to complete. Scientists now have a better understanding of the mechanisms leading to disease development, allowing the selection of 'targets' - regulators which are dysfunctional in the disease - allowing scientists to develop new drugs, which inhibit these cellular targets.