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Researchers have discovered that a subtype of leukemia characterized by a poor prognosis is fueled by mutations in pathways distinctly different from a seemingly similar leukemia associated with a much better outcome. The findings from the St. Jude Children’s Research Hospital — Washington University Pediatric Cancer Genome Project (PCGP) highlight a possible new strategy for treating patients with this more aggressive cancer. The work provides the first details of the genetic alterations fueling a subtype of acute lymphoblastic leukemia (ALL) known as early T-cell precursor ALL (ETP-ALL). The results suggest ETP-ALL has more in common with acute myeloid leukemia (AML) than with other subtypes of ALL. The study appears in the January 12 edition of the journal Nature. To view Multimedia News Release, go to http://www.multivu.com/mnr/46768-st-jude-cancer-genome-sequencing-project-combat-aggressive-leukemia

Nearly 90 percent of children and adults with a highly aggressive form of acute lymphoblastic leukemia (ALL) showed no evidence of cancer after receiving a novel, personalized cell therapy that reprograms a patient’s immune system. In pilot studies of bioengineered T cells that attack leukemia, 24 of 27 patients (89%) experienced complete responses within 28 days after treatment. In all, 27 patients received the treatment--22 children treated at The Children’s Hospital of Philadelphia and five adults treated at the Hospital of the University of Pennsylvania. To view the Multimedia News Release, go to http://www.multivu.com/mnr/64394-chop-penn-harness-engineered-t-cells-eliminate-tumors-in-blood-leukemia

Findings from continued clinical studies of investigational chimeric antigen receptor (CAR) therapy, CTL019, demonstrate its potential role in the treatment of certain types of lymphocytic leukemia. In one long-term study of pediatric patients with acute lymphoblastic leukemia (ALL), results showed that 36 of 39 pediatric patients with relapsed/refractory (r/r) ALL, or 92%, experienced complete remissions (CR) with CTL0191. To view the Multimedia News Release, go to: http://www.multivu.com/players/English/7393851-novartis-new-ctl019-clinic-data-acute-lymphoblastic-leukemia/