BUZZ-Oxford BioMedica: shares jump 12 pct as U.S. approves gene therapy
** Oxford BioMedica (LSE: OXB.L - news) shares up 12% as Novartis wins approval for pioneering leukaemia treatment, marking the first gene therapy approval in the United States
** UK company makes virus-based gene delivery system central to the Novartis (IOB: 0QLR.IL - news) therapy, which re-engineers a patient's immune cells to attack cancer
** Payments on back of new treatment seen putting Oxford Bio on path to sustainable profit, after 20 years of losses