# Nuclide record opp-ceacam5-imaging-colorectal (opportunity). Data CC BY-NC 4.0, attribute "Data from Nuclide (nuclide.cc)". Whole corpus: https://nuclide.cc/api/v1/nuclide.nt
@prefix schema: <https://schema.org/> .
@prefix nuclide: <https://nuclide.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://nuclide.cc/opportunities/opp-ceacam5-imaging-colorectal/>
  a schema:CreativeWork ;
  nuclide:kind "opportunity" ;
  schema:identifier "opp-ceacam5-imaging-colorectal" ;
  schema:name "CEACAM5 imaging for occult colorectal recurrence"@en ;
  schema:alternateName "CEA PET"@en, "CEACAM5 PET"@en ;
  schema:description "After bowel cancer surgery, a rising blood marker often signals that the cancer is back, but scans frequently cannot say where. The one scan ever approved for that exact problem was withdrawn from the market in 2005 and nothing has replaced it."@en ;
  schema:url <https://nuclide.cc/opportunities/opp-ceacam5-imaging-colorectal/> ;
  schema:dateModified "2026-09-23"^^xsd:date ;
  schema:citation <https://pmc.ncbi.nlm.nih.gov/articles/PMC5153343/>, <https://clinicaltrials.gov/study/NCT03659448>, <https://www.nature.com/articles/s41591-024-03254-6>, <https://pmc.ncbi.nlm.nih.gov/articles/PMC9701133/>, <https://pmc.ncbi.nlm.nih.gov/articles/PMC13394594/> ;
  nuclide:tag "unmet need first", "colorectal", "recurrence", "ctDNA" ;
  nuclide:related <https://nuclide.cc/isotopes/ga-68/>, <https://nuclide.cc/isotopes/f-18/>, <https://nuclide.cc/isotopes/tc-99m/> ;
  nuclide:indications <https://nuclide.cc/indications/colorectal-cancer/> ;
  nuclide:technologies <https://nuclide.cc/technologies/immuno-pet/>, <https://nuclide.cc/technologies/pet-ct/>, <https://nuclide.cc/technologies/fdg-pet/> ;
  nuclide:targets <https://nuclide.cc/targets/ceacam5/> .