Company Overview

Sierra Oncology is a late stage drug development company focused on achieving the successful registration and commercialization of momelotinib. We have a highly experienced management team with a proven track record of success in hematology and oncology drug development. We are an ambitious company, oriented towards achieving the successful registration and commercialization of our product candidates.

Momelotinib, our lead drug candidate, is a potent, selective and orally-bioavailable JAK1, JAK2 & ACVR1 inhibitor with a targeted mechanism of action that enables it to address all three key drivers of myelofibrosis. Momelotinib’s differentiated therapeutic profile encompasses robust constitutional symptom improvements, a range of meaningful anemia benefits, including eliminating or reducing the need for frequent blood transfusions, and comparable spleen control to ruxolitinib. More than 1,200 subjects have received momelotinib since clinical studies began in 2009, including more than 820 patients treated for myelofibrosis.

Sierra has launched the MOMENTUM, a randomized double-blind Phase 3 clinical trial designed to enroll 180 myelofibrosis patients who are symptomatic and anemic, and who have been treated previously with a JAK inhibitor. The U.S. Food and Drug Administration has granted Fast Track designation to momelotinib.

Momelotinib is protected by patents anticipated to provide potential exclusivity to 2040 in the United States and Europe (including Patent Term Extension or Supplementary Protection Certificate).