Gene therapy has come a long way to get where it is today but there is still much to learn and investigate. Host Adam Rutherford speaks to a line-up of experts about the vital role of clinical trials and the unique challenges facing gene therapy and rare disease patients.Featuring guests:Brenda Cooperstone, Senior Vice President, Chief Development Officer, Rare Disease, PfizerEmily Crossley, Chief Executive Officer, Duchenne UKErik Paulsen, Chair, Institute for Gene TherapiesProfessor John Rasko, Clinical Haematologist & Trial Investigator, University of SydneySimone Boselli, Director, Public Affairs, EURORDISSuneet Varma, Global President, Rare Disease, Pfizer