Gastric cancer biomarker
CLDN18.2 in gastric cancer: what does a positive result mean for treatment questions?
A CLDN18.2 result needs to be read with the testing method, HER2, PD-L1, MSI/MMR, stage, and prior treatments.
This may be relevant if
- A pathology report mentions CLDN18.2-positive disease or CLDN18.2 expression.
- You want to understand how the biomarker relates to treatment or trials.
- HER2 or other biomarker results are also available and need comparison.
What information matters?
Start with what you have. Missing information can be marked and completed later.
- The CLDN18.2 IHC report and testing method
- HER2, PD-L1, MSI/MMR, or other molecular results
- Stage, disease sites, and treatment history
- Questions about treatment, trials, or a second opinion
A practical next step
- 1Save the complete pathology report, not only the biomarker value.
- 2Record HER2, PD-L1, MSI/MMR, stage, and prior treatments.
- 3Add the pathology result to the Cancer Passport so it can be read with the case context.
- 4Use the case summary to request a review of potentially relevant treatment, trial, or second-opinion options.
Not a diagnosis and not final medical advice. Must be reviewed by a doctor.
Review a CLDN18.2 gastric cancer result
Bring pathology and other biomarkers together so treatment questions do not rely on one result alone.
After submission, a human navigator reviews your request and contacts you through your chosen channel. The WhatsApp message already includes this page context, so you do not need to explain from the beginning.
Clinical data is not requested in the form and is not sent to analytics. Do not send medical reports through WhatsApp or email; use the secure upload page. We do not promise eligibility or any treatment outcome.
Continue exploring
Use a case summary, not a copied medical history
The Cancer Passport keeps the information you choose to save in one place so a later review can start from the same context.
Ready to take the next step?
Start with the information you have. A navigator can help identify what to review next.
Prepare for your next consultation
Use the free six-question tool to prepare questions for your doctor.