Sierra12 Jun 2020 09:23
Sierra Oncology Reports Favorable Long-Term Safety and Dose Intensity Data for Momelotinib
- Data presented at the 25th European Hematology Association (EHA) Virtual Congress further demonstrate the potential anemia benefits and favorable hematological safety profile of momelotinib -
- Long-term tolerability facilitates sustained dose intensity and prolonged clinical activity; longest ongoing treatment now extends to 10 years -
VANCOUVER, BC, June 12, 2020 /CNW/ - Sierra Oncology, Inc. (NASDAQ: SRRA), a late-stage drug development company focused on the registration and commercialization of momelotinib, a JAK1, JAK2 & ACVR1 inhibitor with a potentially differentiated therapeutic profile for the treatment of myelofibrosis, announced that Long-Term Safety and Dose Intensity data for momelotinib are being presented today in two posters at the 25th European Hematology Association (EHA) Virtual Congress.
More than 820 patients with myelofibrosis have received momelotinib during its development, including a number of patients who remain on treatment since the start of the original Phase 2 studies initiated a decade ago. One of these patients will reach a major milestone this week, having received momelotinib therapy for 10 years, highlighting the relevance of the long-term dosing and safety data for momelotinib being presented this week at EHA. The data presented at EHA draw from more than 550 patients across the two previously conducted SIMPLIFY Phase 3 studies and their subsequent ongoing extended treatment periods. More than 90 SIMPLIFY-1 and SIMPLIFY-2 patients continued to receive momelotinib for 3.5 years or longer.
"Consistent with prior data, and reflecting momelotinib's differentiated pharmacological profile, our new long-term safety analyses continue to show a rapid and sustained increase in hemoglobin levels during momelotinib therapy, in contrast to the significant decrease in hemoglobin for patients receiving ruxolitinib. Patients treated with momelotinib also experienced significantly higher mean platelet counts compared to those receiving ruxolitinib. Importantly, patients who switched from ruxolitinib to momelotinib also achieved a sustained improvement in both hemoglobin and platelets," said Prof. Claire Harrison, Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom. "In addition to an absence of significant rates of high-grade hematological toxicities, long-term tolerability was favorable with no new safety signals or evidence of cumulative toxicity. Notably, this was achieved with most patients receiving full-dose momelotinib."
"Momelotinib's safety profile and durable anemia benefits facilitated sustained dose intensity across the continuum of JAK inhibitor naïve and previously JAK inhibitor treated myelofibrosis patients. While the starting doses for ruxolitinib were often attenuated due to low platelets, further reductions in dose intensity were also commonly required for ruxolitinib. In contrast, momelotin