# OnCo record sstr-pet-expression (biomarker). 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/biomarkers/sstr-pet-expression/>
  a schema:MedicalTest ;
  onco:kind "biomarker" ;
  schema:identifier "sstr-pet-expression" ;
  schema:name "Somatostatin receptor expression by PET (SSTR-positive)"@en ;
  schema:alternateName "SSTR PET positive"@en, "somatostatin receptor-positive"@en, "SSTR-positive"@en, "DOTATATE PET positive"@en, "Krenning score"@en, "SSTR2 expression"@en, "octreoscan positive"@en ;
  schema:description "Somatostatin receptor-positive means a neuroendocrine tumour takes up a DOTATATE tracer on PET. It is the requirement for lutetium-177 dotatate and the marker that predicts response to octreotide and lanreotide."@en ;
  schema:url <https://onco.cc/biomarkers/sstr-pet-expression/> ;
  schema:dateModified "2026-09-23"^^xsd:date ;
  schema:citation <https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=72d1a024-00b7-418a-b36e-b2cb48f2ab55> ;
  onco:tag "biomarker", "pet" ;
  onco:related <https://onco.cc/biomarkers/psma-pet-expression/>, <https://onco.cc/biomarkers/ki-67-index/> ;
  onco:cancers <https://onco.cc/cancers/neuroendocrine/>, <https://onco.cc/cancers/pancreatic-net/>, <https://onco.cc/cancers/lung-net/> ;
  onco:drugs <https://onco.cc/drugs/lutathera/>, <https://onco.cc/drugs/ga68-dotatate/>, <https://onco.cc/drugs/ryz101/> ;
  onco:terms <https://onco.cc/terms/theranostics/>, <https://onco.cc/terms/prrt-term/>, <https://onco.cc/terms/net-grade-ki67/> .