May 7 (Reuters) - Sierra Oncology Inc SRRA.O :
* SIERRA ONCOLOGY REPORTS FIRST QUARTER 2021 RESULTS
* SIERRA ONCOLOGY INC - QTRLY LOSS PER SHARE $1.71
May 7 (Reuters) - Sierra Oncology Inc SRRA.O :
* SIERRA ONCOLOGY REPORTS FIRST QUARTER 2021 RESULTS
* SIERRA ONCOLOGY INC - QTRLY LOSS PER SHARE $1.71