On 30 August, the US Food and Drug Administration (FDA) approved Novartis's Kymriah (tisagenlecleucel, CTL019), the first gene therapy for the treatment of pediatric and young-adult patients with relapsed and refractory B-cell acute lymphoblastic leukemia (ALL). Kymriah belongs to a class of drugs called chimeric antigen receptor (CAR) T-cell therapies, which constitute a form of immunotherapy...