Galena Biopharma Completes Enrollment in GALE-401 (Anagrelide Controlled Release) Phase 2 Clinical TrialEnrollment completed six months ahead of schedulePhase 1 and early Phase 2 data to be presented at the American Society of Hematology 56th Annual Meeting in December, with top-line data in mid-year 2015
PORTLAND, Ore., Nov. 18, 2014 (GLOBE NEWSWIRE) -- Galena Biopharma, Inc. (Nasdaq:GALE), a biopharmaceutical company developing and commercializing innovative, targeted oncology treatments that address major medical needs across the full spectrum of cancer care, today announced the completion of enrollment in the GALE-401, or Anagrelide Controlled Release, Phase 2 Clinical Trial. The Phase 2, clinical proof-of-concept study is treating 18 patients with elevated platelet counts in myeloproliferative neoplasms (MPNs) including Essential Thrombocythemia (ET), Polycythemia Vera (PV), and Primary Myelofibrosis (PMF).
The Phase 2 trial is an open-label, single-arm, multicenter study designed to confirm the platelet-lowering activity of GALE-401 in patients with MPNs, to assess safety and tolerability, and to measure plasma concentrations of anagrelide. The platelet lowering ability of GALE-401 will be measured by the proportion of patients that achieve a complete or partial platelet response for at least four weeks during 24 weeks of treatment. With enrollment complete, patients will now be followed for platelet response while they continue study treatment.
"Completing enrollment approximately six months ahead of schedule in the GALE-401 Phase 2 trial will allow us to present key data in 2015," said Mark W. Schwartz, Ph.D., President and Chief Executive Officer. "Once we assess the results of this clinical proof-of-concept trial, we will determine the best path forward for the compound. I am proud of the work done by our team, and grateful for our investigators and patients who supported this trial, some of whom switched from their current therapy to participate."
GALE-401 is Galena's new formulation of anagrelide. GALE-401 releases the active ingredient more slowly over time than currently marketed versions of this drug, and is therefore absorbed more slowly into the bloodstream. This slower release of drug could help to reduce adverse events that might be caused by high blood concentrations when the drug is absorbed rapidly, as it is with currently marketed products. Based on discussions with the U.S. Food and Drug Administration (FDA) and pending a successful development program, Galena would pursue approval via the 505(b)(2) regulatory pathway.
About GALE-401 (Anagrelide CR)
GALE-401 (Anagrelide CR) contains the active ingredient anagrelide. The currently available immediate release formulation (anagrelide IR) is approved by the FDA for the treatment of high platelet counts in patients with Myeloproliferative Neoplasms (MPNs), including Polycythemia Vera (PV), Chronic Myelogenous Leukemia (CML), Primary Myelofibrosis (PMF), and Essential Thrombocythemia (ET). Adverse events associated with anagrelide IR, such as nausea, diarrhea, abdominal pain, palpitations, tachycardia, and headache, may be dose and plasma concentration dependent. Reducing the maximum plasma concentration (Cmax) is expected to reduce side effects, while preserving efficacy. GALE-401 is a reformulated, controlled release version of anagrelide. In Phase 1 studies in healthy volunteers, GALE-401 was shown to significantly reduce the Cmax while maintaining plasma exposure to reduce platelet counts. Thus, GALE-401 may reduce treatment-related adverse events while maintaining effective therapeutic levels to decrease platelet production.
About Myeloproliferative Neoplasms
Myeloproliferative neoplasms (MPNs) are a closely related group of hematological malignancies in which the bone marrow cells that produce the body's blood cells develop and function abnormally. The main myeloproliferative neoplasms are Essential Thrombocythemia (ET), Polycythemia Vera (PV), Primary Myelofibrosis (PMF), and Chronic Myelogenous Leukemia (CML), all of which are associated with high platelet counts. The MPNs are progressive blood cancers that can strike anyone at any age, and for which there is no known cure.
