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Tosedostat OPAL Study in Acute Myeloid Leukemia Published in Lancet Oncology
Cell Therapeutics, Inc. (CTI) and Chroma Therapeutics Ltd. have announced that Lancet Oncology has published results from the OPAL Phase 2 study of tosedostat in elderly patients with relapsed or refractory acute myeloid leukemia (AML).
Tosedostat is an oral aminopeptidase inhibitor which has been shown to deprive tumor cells of the amino acid building blocks they need to make proteins necessary for tumor cell survival.
The lead author was Dr. Jorge Cortes, Professor of Medicine and Internist, Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center in Houston, Texas.
The trial showed that once-daily oral tosedostat resulted in a disease control rate of 51%.
Subset analyses suggested the greatest benefit occurred in the difficult-to-treat patients with prior myelodysplastic syndrome (MDS) or those that had received prior hypomethylating therapy (HMA). Adverse events were mild, predictable and manageable.
