Sierra Oncology to Host Analyst Call Highlighting Clinical Data on Momelotinib’s Anemia Benefit

VANCOUVER, /PRNewswire/ - Sierra Oncology Inc. (Nasdaq: SRRA), a clinical stage drug development company focused on advancing targeted therapeutics for the treatment of patients with significant unmet needs in hematology and oncology, today announced that it will host an Analyst & Investor call on Monday, December 3^rd at 4:30 pm Eastern Time (ET) to discuss newly reported clinical data for its lead drug candidate, momelotinib, a potent, selective and orally-bioavailable JAK1, JAK2 and ACVR1 inhibitor for the treatment of myelofibrosis.

The call will be led by Dr. Nick Glover, President and CEO of Sierra Oncology and will include distinguished medical oncologist Dr. Srdan Verstovsek, MD, PhD, Professor in the Department of Leukemia at The University of Texas MD Anderson Cancer Center, Houston, Texas. The call will highlight emerging clinical data obtained from two completed Phase 3 clinical trials that demonstrate momelotinib’s unique anemia benefit in patients with myelofibrosis and validate the drug’s pro-erythropoietic mechanism of action. Additional supportive data from a translational biology study in transfusion dependent patients with myelofibrosis are being presented in a poster at the 60^th American Society of Hematology (ASH) Annual Meeting & Exposition in San Diego, California, on December 3, 2018.

Dial-In & Webcast Information
Date and Time: Monday, December 3^rd at 4:30 pm ET
Domestic (Toll Free- US): 1-800-289-0438
International (Toll): 1-323-794-2423
Conference ID: 6168197

Webcast: www.sierraoncology.com
Direct link: http://public.viavid.com/index.php?id=132215

Dr. Verstovsek and members of Sierra’s senior management team will be available to answer questions at the conclusion of the presentation. If you are participating by webcast and would like to ask a question during the live Q&A, please submit your request via email at Questions@LifeSciAdvisors.com.

About Sierra Oncology
Sierra Oncology is a clinical stage drug development company advancing targeted therapeutics for the treatment of patients with unmet medical needs in hematology and oncology. Our lead drug candidate, momelotinib, is a potent, selective and orally-bioavailable JAK1, JAK2 and ACVR1 inhibitor that has been investigated in two completed Phase 3 trials for the treatment of myelofibrosis and has demonstrated a potentially differentiated therapeutic profile encompassing anemia-related benefits, as well as achieving substantive spleen and constitutional symptom control.

Sierra is also advancing SRA737 and SRA141. SRA737 is a potent, highly selective, orally bioavailable small molecule inhibitor of Checkpoint kinase 1 (Chk1), a key regulator of cell cycle progression and the DNA Damage Response (DDR). SRA737 is currently being investigated in two Phase 1/2 clinical trials primarily focused on patients with ovarian cancer: SRA737-01, a monotherapy study, and SRA737-02, a drug combination study evaluating SRA737 potentiated by low dose gemcitabine. Sierra has also prepared for a potential clinical study of SRA737 in combination with a PARP inhibitor. SRA141 is a Phase 1 ready, potent, selective, orally bioavailable small molecule inhibitor of Cell division cycle 7 kinase (Cdc7). Cdc7 is a key regulator of DNA replication and is involved in the DDR network, making it a compelling emerging target for the potential treatment of a broad range of tumor types.

For more information, please visit www.sierraoncology.com.

Cautionary Note on Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to, statements regarding Sierra Oncology’s market and industry position, expectations from current data, anticipated clinical development activities and timing and potential benefits of Sierra Oncology’s product candidates. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. These statements are based on management’s current expectations and beliefs and are subject to a number of risks, uncertainties and assumptions that could cause actual results to differ materially from those described in the forward-looking statements. Such forward-looking statements are subject to risks and uncertainties, including, among others, the risk that Sierra Oncology may be unable to successfully develop and commercialize product candidates, product candidates may not demonstrate safety and efficacy or otherwise produce positive results, Sierra Oncology may experience delays in the preclinical and anticipated clinical development of its product candidates, Sierra Oncology may be unable to acquire additional assets to build a pipeline of additional product candidates, Sierra Oncology’s third-party manufacturers may cause its supply of materials to become limited or interrupted or fail to be of satisfactory quantity or quality, Sierra Oncology’s cash resources may be insufficient to fund its current operating plans and it may be unable to raise additional capital when needed, Sierra Oncology may be unable to obtain and enforce intellectual property protection for its technologies and product candidates and the other factors described under the heading “Risk Factors” set forth in Sierra Oncology’s filings with the Securities and Exchange Commission from time to time. Sierra Oncology undertakes no obligation to update the forward-looking statements contained herein or to reflect events or circumstances occurring after the date hereof, other than as may be required by applicable law.

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SOURCE Sierra Oncology