Figure 2. Trends in genome editor use in clinical trials.

Genome editing trials registered in the U.S. clinical trials database by year and selected genome editor (A), or delivery method (B) and delivery method grouped by in vivo or ex vivo use (C). Some trials did not have a clear delivery methodology (labeled as unknown). These unknown delivery methods are all ex vivo delivery making electroporation the most likely method. Data were accessed 1/01/2020.