CIRCULATING TUMOUR CELLS
An evidence-aware overview of CTC analysis and its limitations in medical decision-making.
CTCs are tumour-derived cells shed into the bloodstream from a primary or metastatic site. Detection and enumeration are used in research and selected clinical contexts, but a CTC result alone cannot establish whether cancer is present, where it began or whether it has recurred.
ABOUT THE INFORMATION
CTC research findings and the information available from an individual test should be considered separately.
CURRENT POSITION
CTCs are studied as a form of liquid biopsy, including associations with prognosis in some advanced cancers. Important gaps remain for population screening, method standardisation and proof that CTC-directed treatment changes improve outcomes.
PROCESS
LIMITATIONS
PUBLICATION
A pilot study of a microfluidic device in gynaecologic cancer is presented as background material for CTC research. Its applicability depends on the population, method and intended use.
SGH provides pre-collection sales and general information to help people access overseas testing through Japanese medical providers. You can decide whether to proceed after speaking with your doctor.
Information about plans, listed prices, the process and your preferred area. SGH does not provide medical care, genetic counselling or interpretation of results.
The provider handles eligibility, medical explanation, consent, blood collection and results. Ask your provider about genetic counselling and referral to a specialist when needed.
Specimens collected in Japan are sent to Taiwan. Confirm the test method, scope and reporting conditions in the test-specific documents checked by your medical provider before proceeding.
FAQ
Current evidence does not support treating CTC analysis as a stand-alone general cancer screening test. Use age- and risk-appropriate standard screening.
No. CTCs are rare and detection depends on sampling and method. A non-detected result cannot exclude cancer.
CONSULTATION
Confirm the platform, intended use, cost, report format and clinical responsibilities before considering implementation.
