Attached files

file filename
EX-32.2 - EX-32.2 - Sierra Oncology, Inc.d843782dex322.htm
EX-32.1 - EX-32.1 - Sierra Oncology, Inc.d843782dex321.htm
EX-31.2 - EX-31.2 - Sierra Oncology, Inc.d843782dex312.htm
EX-31.1 - EX-31.1 - Sierra Oncology, Inc.d843782dex311.htm
EX-21.1 - EX-21.1 - Sierra Oncology, Inc.d843782dex211.htm
EX-10.3 - EX-10.3 - Sierra Oncology, Inc.d843782dex103.htm
EX-4.5 - EX-4.5 - Sierra Oncology, Inc.d843782dex45.htm
EX-2.2 - EX-2.2 - Sierra Oncology, Inc.d843782dex22.htm
10-K - 10-K - Sierra Oncology, Inc.d843782d10k.htm

EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-205693, 333-209897, 333-216392, 333-223253, 333-228263, and 333-229933 on Form S-8, and Registration Statement Nos. 333-225650 and 333-234554 on Form S-3 of our report dated March 3, 2020, relating to the consolidated financial statements of Sierra Oncology, Inc. and subsidiaries (the “Company”) appearing in this Annual Report on Form 10-K of the Company for the year ended December 31, 2019.

 

/s/ Deloitte & Touche LLP
Grand Rapids, Michigan
March 3, 2020