The work of gene therapy pioneer Genethon, a non-profit organization created by the patient association AFM-Telethon, has already seen its research lead to Zolgensma, the gene therapy for spinal muscular atrophy, as well as a growing pipeline of candidates for other rare diseases. But it came to realize it needed to pursue more than just licensing agreements to ensure its work ultimately benefited people who needed its therapies. As a result, the organization has taken a range of different approaches to ensure the development of its gene therapies. We spoke to Frederic Revah, CEO of Genethon, about the limits of licensing out its discoveries to biopharma, the different development strategies it pursues, and how it determines the best path for a particular development program.