# OnCo record sierra-oncology (company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/companies/sierra-oncology/>
  a schema:Organization ;
  onco:kind "company" ;
  schema:identifier "sierra-oncology" ;
  schema:name "Sierra Oncology"@en ;
  schema:alternateName "Sierra Oncology, Inc."@en, "Sierra Oncology LLC"@en, "ProNAi Therapeutics"@en ;
  schema:description "A former California company that developed momelotinib, a pill for myelofibrosis, a bone marrow cancer, especially for patients with anaemia. GSK bought it in 2022."@en ;
  schema:url <https://onco.cc/companies/sierra-oncology/> ;
  schema:dateModified "2026-11-04"^^xsd:date ;
  schema:citation <https://www.gsk.com/en-gb/media/press-releases/gsk-reaches-agreement-to-acquire-late-stage-biopharmaceutical-company-sierra-oncology-for-19bn/>, <https://www.sec.gov/Archives/edgar/data/1131399/000165495422009090/a0772r.htm>, <https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001290149>, <https://www.racap.com/portfolio/sierra-oncology> ;
  schema:addressCountry "US" ;
  onco:cancers <https://onco.cc/cancers/primary-myelofibrosis/> ;
  onco:sections <https://onco.cc/fronts/targeted-therapy/> ;
  onco:technologies <https://onco.cc/technologies/kinase-inhibitors/> ;
  onco:drugs <https://onco.cc/drugs/momelotinib/> ;
  onco:trials <https://onco.cc/trials/momentum/> .