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CLDN18.2 immunohistochemistry

A staining test to assess CLDN18.2 expression in stomach cancer.

Ilustrasi panel pemeriksaan genetik dengan untai DNA

Not a diagnosis and not final medical advice. Must be reviewed by a doctor.

Purpose of the test

  • Assess the percentage and intensity of CLDN18.2 expression.
  • Becomes the basis for discussing specific antibody therapy.

Informs decisions

  • Compliance with clinical trial and therapy criteria regarding CLDN18.2.

How the test is done

Anti-CLDN18.2 antibody staining of tumor tissue.

Sample type
Block tumor tissue
Estimated result time
Generally one to two weeks.

Limitations

  • Assessment thresholds are still evolving and may vary between facilities.
  • Reporting needs to state percentage and intensity, not just positive or negative.

Related

Cancer types

Markers tested

Not displayed

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Complete pathway

CLDN18.2 in stomach cancer

A CLDN18.2 result is positive. What does it mean and what is worth discussing with the medical team?

  1. CLDN18.2 markerStarting point: what this marker shows and what it does not decide by itself.
  2. CLDN18.2 positiveWhat a positive result means under the pathology testing threshold.
  3. CLDN18.2 IHCA common testing method, including on stored tissue blocks.
  4. After chemotherapy stops workingThe decision situation when first-line therapy no longer controls the disease.
  5. ZolbetuximabAn anti-CLDN18.2 therapy approved in several countries and given with chemotherapy.
  6. Positive CLDN18.2 result guideMeaning of the result, approved options versus investigational ones, and questions for the doctor.

A structured summary so IHC results and treatment history are readable.

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