Simple blood test may reveal early if lung cancer therapy works
NCT ID NCT03926260
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at 100 people with advanced non-small cell lung cancer to see if changes in tumor DNA in the blood (ctDNA) can predict how well treatment is working. Researchers took blood samples before treatment, at 3 weeks, and at 9 weeks. The goal was to see if a rise or fall in ctDNA levels matches tumor shrinkage or growth on scans. This is an observational pilot study, not a test of a new drug.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this could lead to a simple blood test to quickly tell if lung cancer treatment is working, helping doctors adjust therapy earlier.
What could go wrong
This is a small, early pilot study (100 people) that only observes DNA changes—it does not test a new treatment. The findings may not apply to all patients or lead to a reliable test.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Jaafar BENNOUNA
Nantes, 44000, France
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Marie MARCQ
La Roche-sur-Yon, 85000, France