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web.tmxmoney.com/...id=5025873883549813&qm_symbol=ATNM:US
NEW YORK, May 16, 2019 /PRNewswire/ -- Actinium Pharmaceuticals, Inc. (NYSE AMERICAN: ATNM) ("Actinium") today announced that an abstract pertaining to its lead product candidate, Iomab-B, which is being studied in the pivotal Phase 3 SIERRA study, will be presented via poster at the 2019 ASCO or American Society of Clinical Oncology Annual Meeting that is being held from May 31st – June 4th at McCormick Place, in Chicago. The data to be presented at ASCO is a new analysis from the first 25% of patients enrolled in the SIERRA trial highlighting that by day 3 after Iomab-B administration, patients had a 98% median reduction in peripheral blasts and 100% reduction in blasts by day 8. This significant and rapid reduction in blasts occurred with patients receiving only a single therapeutic infusion of Iomab-B and no other pre-transplant conditioning. As a result, patients had significantly lower circulating leukemia burden prior to their BMT or Bone Marrow Transplant with all patients that received a therapeutic infusion of Iomab-B having robust engraftment despite active disease prior to Iomab-B conditioning.
Dr. Tomlinson, said, "Older patients with active, relapsed or refractory AML are an underserved patient population. These patients, particularly those with high blast counts as seen in the SIERRA trial, are not typically considered candidates for transplant, which is a potentially curative treatment for AML, and have a poor prognosis with other therapeutic options. Iomab-B has uniquely demonstrated an ability to effectively condition these patients for transplant with robust engraftment. We hypothesized that this successful engraftment is due to the myeloablation and anti-leukemic effect of Iomab-B, since these patients had a median of 30% bone marrow blasts prior to transplant. Therefore, we are highly encouraged to observe that Iomab-B as a single agent has a significant anti-leukemic effect and rapidly reduces peripheral blasts
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