Three separate studies detail how new therapies may improve organ transplantation by reducing the need for lifetime immunosuppressive drugs. In one study, a kidney recipient went off drugs for two years after his doctors altered his immune system and then gave him an infusion of his brother's blood cells. "This does indicate a new phase in transplantation. ... Patients are either able to get by with much less immunosuppressive therapy or, in some cases, as exemplified by these three reports, no long-term immunospression at all," an organ transplant expert said.