Gene therapy has been heralded as the ‘Next Big Thing’, not once, but twice. Since its dramatic fall from grace following extreme clinical trial mortalities at the end of the 1990s, investment in the area was widely reported as drying up, but as Figure 1 shows, gene therapy research never really went away.
The number of gene therapies in active development is at an all-time high, according to the historical ‘Trends’ data tracking...








