Plain-English translation of NCT06904625 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This is a research study that compares three different blood test methods—CellSearch, Parsortix, and SmartCatch—to see which one is best at finding cancer cells circulating in the bloodstream. You have advanced breast or prostate cancer, and researchers want to understand which of these three techniques works most reliably before you start your next cancer treatment.
Doctors need better ways to detect cancer cells in the blood, which can help them understand how well treatment is working and spot cancer earlier. This study will help figure out which blood test method works best, so patients can get the most accurate information to guide their care.
You likely qualify if…
You likely don't qualify if…
If you qualify, you will come in for one visit before starting your new cancer treatment. During that visit, a blood sample will be taken and tested using all three different detection methods. The entire study participation takes just one day, and there are no ongoing visits or follow-up appointments required after that.
AI-generated summary from trial data · Jun 18, 2026 · Not medical advice
France